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Merge branch 'remove_evalstack'

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This commit is contained in:
Irmen de Jong 2023-07-30 17:49:35 +02:00
commit 9167ba499d
80 changed files with 1808 additions and 5275 deletions
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2
codeCore/src/prog8/code/SymbolTableMaker.kt
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@ -26,8 +26,6 @@ class SymbolTableMaker(private val program: PtProgram, private val options: Comp
PtMemMapped("P8ZP_SCRATCH_REG", DataType.UBYTE, options.compTarget.machine.zeropage.SCRATCH_REG, null, Position.DUMMY),
PtMemMapped("P8ZP_SCRATCH_W1", DataType.UWORD, options.compTarget.machine.zeropage.SCRATCH_W1, null, Position.DUMMY),
PtMemMapped("P8ZP_SCRATCH_W2", DataType.UWORD, options.compTarget.machine.zeropage.SCRATCH_W2, null, Position.DUMMY),
PtMemMapped("P8ESTACK_LO", DataType.ARRAY_UB, options.compTarget.machine.ESTACK_LO, 128u, Position.DUMMY),
PtMemMapped("P8ESTACK_HI", DataType.ARRAY_UB, options.compTarget.machine.ESTACK_HI, 128u, Position.DUMMY)
).forEach {
it.parent = program
st.add(StMemVar(it.name, it.type, it.address, it.arraySize?.toInt(), it))

1
codeCore/src/prog8/code/ast/AstPrinter.kt
View File

@ -126,7 +126,6 @@ fun printAst(root: PtNode, skipLibraries: Boolean, output: (text: String) -> Uni
else
"->"
}
else -> throw InternalCompilerException("unrecognised ast node $node")
}
}

2
codeCore/src/prog8/code/core/BuiltinFunctions.kt
View File

@ -124,9 +124,7 @@ val BuiltinFunctions: Map<String, FSignature> = mapOf(
"push" to FSignature(false, listOf(FParam("value", ByteDatatypes)), null),
"pushw" to FSignature(false, listOf(FParam("value", WordDatatypes)), null),
"rsave" to FSignature(false, emptyList(), null),
"rsavex" to FSignature(false, emptyList(), null),
"rrestore" to FSignature(false, emptyList(), null),
"rrestorex" to FSignature(false, emptyList(), null),
"memory" to FSignature(true, listOf(FParam("name", arrayOf(DataType.STR)), FParam("size", arrayOf(DataType.UWORD)), FParam("alignment", arrayOf(DataType.UWORD))), DataType.UWORD),
"callfar" to FSignature(false, listOf(FParam("bank", arrayOf(DataType.UBYTE)), FParam("address", arrayOf(DataType.UWORD)), FParam("arg", arrayOf(DataType.UWORD))), DataType.UWORD),
)

3
codeCore/src/prog8/code/core/CompilationOptions.kt
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@ -13,15 +13,12 @@ class CompilationOptions(val output: OutputType,
val compTarget: ICompilationTarget,
// these are set later, based on command line arguments or options in the source code:
var loadAddress: UInt,
var slowCodegenWarnings: Boolean = false,
var optimize: Boolean = false,
var optimizeFloatExpressions: Boolean = false,
var asmQuiet: Boolean = false,
var asmListfile: Boolean = false,
var experimentalCodegen: Boolean = false,
var varsHighBank: Int? = null,
var splitWordArrays: Boolean = false,
var evalStackBaseAddress: UInt? = null,
var outputDir: Path = Path(""),
var symbolDefs: Map<String, String> = emptyMap()
) {

9
codeCore/src/prog8/code/core/IMachineDefinition.kt
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@ -13,8 +13,6 @@ interface IMachineDefinition {
val FLOAT_MAX_NEGATIVE: Double
val FLOAT_MAX_POSITIVE: Double
val FLOAT_MEM_SIZE: Int
var ESTACK_LO: UInt
var ESTACK_HI: UInt
val PROGRAM_LOAD_ADDRESS : UInt
val BSSHIGHRAM_START: UInt
val BSSHIGHRAM_END: UInt
@ -29,11 +27,4 @@ interface IMachineDefinition {
fun importLibs(compilerOptions: CompilationOptions, compilationTargetName: String): List<String>
fun launchEmulator(selectedEmulator: Int, programNameWithPath: Path)
fun isIOAddress(address: UInt): Boolean
fun overrideEvalStack(evalStackBaseAddress: UInt) {
require(evalStackBaseAddress and 255u == 0u)
ESTACK_LO = evalStackBaseAddress
ESTACK_HI = evalStackBaseAddress + 256u
require(ESTACK_LO !in golden.region && ESTACK_HI !in golden.region) { "user-set ESTACK can't be in GOLDEN ram" }
}
}

4
codeCore/src/prog8/code/target/atari/AtariMachineDefinition.kt
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@ -13,10 +13,6 @@ class AtariMachineDefinition: IMachineDefinition {
override val FLOAT_MEM_SIZE = 6
override val PROGRAM_LOAD_ADDRESS = 0x2000u
// the 2*128 byte evaluation stack (1 page, on which bytes, words, and even floats are stored during calculations)
override var ESTACK_LO = 0x1b00u // $1b00-$1b7f inclusive // TODO
override var ESTACK_HI = 0x1b80u // $1b80-$1bff inclusive // TODO
override val BSSHIGHRAM_START = 0u // TODO
override val BSSHIGHRAM_END = 0u // TODO

4
codeCore/src/prog8/code/target/c128/C128MachineDefinition.kt
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@ -15,10 +15,6 @@ class C128MachineDefinition: IMachineDefinition {
override val FLOAT_MEM_SIZE = Mflpt5.FLOAT_MEM_SIZE
override val PROGRAM_LOAD_ADDRESS = 0x1c01u
// the 2*128 byte evaluation stack (1 page, on which bytes, words, and even floats are stored during calculations)
override var ESTACK_LO = 0x1b00u // $1b00-$1b7f inclusive
override var ESTACK_HI = 0x1b80u // $1b80-$1bff inclusive
override val BSSHIGHRAM_START = 0u // TODO
override val BSSHIGHRAM_END = 0u // TODO

8
codeCore/src/prog8/code/target/c64/C64MachineDefinition.kt
View File

@ -16,12 +16,8 @@ class C64MachineDefinition: IMachineDefinition {
override val FLOAT_MEM_SIZE = Mflpt5.FLOAT_MEM_SIZE
override val PROGRAM_LOAD_ADDRESS = 0x0801u
// the 2*128 byte evaluation stack (1 page, on which bytes, words, and even floats are stored during calculations)
override var ESTACK_LO = 0xcf00u // $cf00-$cf7f inclusive
override var ESTACK_HI = 0xcf80u // $cf80-$cfff inclusive
override val BSSHIGHRAM_START = 0xc000u
override val BSSHIGHRAM_END = ESTACK_LO
override val BSSHIGHRAM_END = 0xd000u
override lateinit var zeropage: Zeropage
override lateinit var golden: GoldenRam
@ -62,7 +58,7 @@ class C64MachineDefinition: IMachineDefinition {
override fun initializeMemoryAreas(compilerOptions: CompilationOptions) {
zeropage = C64Zeropage(compilerOptions)
golden = GoldenRam(compilerOptions, 0xc000u until ESTACK_LO)
golden = GoldenRam(compilerOptions, 0xc000u until 0xd000u)
}
}

6
codeCore/src/prog8/code/target/cx16/CX16MachineDefinition.kt
View File

@ -15,10 +15,6 @@ class CX16MachineDefinition: IMachineDefinition {
override val FLOAT_MEM_SIZE = Mflpt5.FLOAT_MEM_SIZE
override val PROGRAM_LOAD_ADDRESS = 0x0801u
// the 2*128 byte evaluation stack (1 page, on which bytes, words, and even floats are stored during calculations)
override var ESTACK_LO = 0x0700u // $0700-$077f inclusive
override var ESTACK_HI = 0x0780u // $0780-$07ff inclusive
override val BSSHIGHRAM_START = 0xa000u // hiram bank 1, 8Kb, assumed to be active
override val BSSHIGHRAM_END = 0xc000u // rom starts here.
@ -64,7 +60,7 @@ class CX16MachineDefinition: IMachineDefinition {
override fun initializeMemoryAreas(compilerOptions: CompilationOptions) {
zeropage = CX16Zeropage(compilerOptions)
golden = GoldenRam(compilerOptions, 0x0400u until ESTACK_LO)
golden = GoldenRam(compilerOptions, 0x0400u until 0x0800u)
}
}

1
codeCore/src/prog8/code/target/cx16/CX16Zeropage.kt
View File

@ -40,7 +40,6 @@ class CX16Zeropage(options: CompilationOptions) : Zeropage(options) {
ZeropageType.DONTUSE -> {
free.clear() // don't use zeropage at all
}
else -> throw InternalCompilerException("for this machine target, zero page type 'floatsafe' is not available. ${options.zeropage}")
}
val distinctFree = free.distinct()

2
codeCore/src/prog8/code/target/virtual/VirtualMachineDefinition.kt
View File

@ -15,8 +15,6 @@ class VirtualMachineDefinition: IMachineDefinition {
override val FLOAT_MEM_SIZE = 4 // 32-bits floating point
override val PROGRAM_LOAD_ADDRESS = 0u // not actually used
override var ESTACK_LO = 0u // not actually used
override var ESTACK_HI = 0u // not actually used
override val BSSHIGHRAM_START = 0u // not actually used
override val BSSHIGHRAM_END = 0u // not actually used
override lateinit var zeropage: Zeropage // not actually used

123
codeGenCpu6502/src/prog8/codegen/cpu6502/AsmGen.kt
View File

@ -207,8 +207,8 @@ class AsmGen6502Internal (
private val postincrdecrAsmGen = PostIncrDecrAsmGen(program, this)
private val functioncallAsmGen = FunctionCallAsmGen(program, this)
private val programGen = ProgramAndVarsGen(program, options, errors, symbolTable, functioncallAsmGen, this, allocator, zeropage)
private val assignmentAsmGen = AssignmentAsmGen(program, symbolTable, this, allocator)
private val expressionsAsmGen = ExpressionsAsmGen(program, this, allocator)
private val anyExprGen = AnyExprAsmGen(this)
private val assignmentAsmGen = AssignmentAsmGen(program, this, anyExprGen, allocator)
private val builtinFunctionsAsmGen = BuiltinFunctionsAsmGen(program, this, assignmentAsmGen)
fun compileToAssembly(): IAssemblyProgram? {
@ -394,32 +394,6 @@ class AsmGen6502Internal (
return name2.replace("prog8_lib.P8ZP_SCRATCH_", "P8ZP_SCRATCH_") // take care of the 'hooks' to the temp vars -> reference zp symbols directly
}
internal fun saveRegisterLocal(register: CpuRegister, scope: IPtSubroutine) {
if (isTargetCpu(CpuType.CPU65c02)) {
// just use the cpu's stack for all registers, shorter code
when (register) {
CpuRegister.A -> out(" pha")
CpuRegister.X -> out(" phx")
CpuRegister.Y -> out(" phy")
}
} else {
when (register) {
CpuRegister.A -> {
// just use the stack, only for A
out(" pha")
}
CpuRegister.X -> {
out(" stx prog8_regsaveX")
subroutineExtra(scope).usedRegsaveX = true
}
CpuRegister.Y -> {
out(" sty prog8_regsaveY")
subroutineExtra(scope).usedRegsaveY = true
}
}
}
}
internal fun saveRegisterStack(register: CpuRegister, keepA: Boolean) {
when (register) {
CpuRegister.A -> out(" pha")
@ -444,24 +418,6 @@ class AsmGen6502Internal (
}
}
internal fun restoreRegisterLocal(register: CpuRegister) {
if (isTargetCpu(CpuType.CPU65c02)) {
when (register) {
// this just used the stack, for all registers. Shorter code.
CpuRegister.A -> out(" pla")
CpuRegister.X -> out(" plx")
CpuRegister.Y -> out(" ply")
}
} else {
when (register) {
CpuRegister.A -> out(" pla") // this just used the stack but only for A
CpuRegister.X -> out(" ldx prog8_regsaveX")
CpuRegister.Y -> out(" ldy prog8_regsaveY")
}
}
}
internal fun restoreRegisterStack(register: CpuRegister, keepA: Boolean) {
when (register) {
CpuRegister.A -> {
@ -581,22 +537,12 @@ class AsmGen6502Internal (
}
}
@Deprecated("avoid calling this as it generates slow evalstack based code")
internal fun translateExpression(expression: PtExpression) =
expressionsAsmGen.translateExpression(expression)
internal fun translateBuiltinFunctionCallExpression(bfc: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?): DataType? =
builtinFunctionsAsmGen.translateFunctioncallExpression(bfc, resultToStack, resultRegister)
internal fun translateBuiltinFunctionCallExpression(bfc: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?): DataType? =
builtinFunctionsAsmGen.translateFunctioncallExpression(bfc, resultRegister)
internal fun translateFunctionCall(functionCallExpr: PtFunctionCall) =
functioncallAsmGen.translateFunctionCall(functionCallExpr)
internal fun saveXbeforeCall(functionCall: PtFunctionCall) =
functioncallAsmGen.saveXbeforeCall(functionCall)
internal fun restoreXafterCall(functionCall: PtFunctionCall) =
functioncallAsmGen.restoreXafterCall(functionCall)
internal fun translateNormalAssignment(assign: AsmAssignment, scope: IPtSubroutine?) =
assignmentAsmGen.translateNormalAssignment(assign, scope)
@ -625,7 +571,6 @@ class AsmGen6502Internal (
}
internal fun assignExpressionTo(value: PtExpression, target: AsmAssignTarget) {
// don't use translateExpression() to avoid evalstack
when (target.datatype) {
in ByteDatatypes -> {
assignExpressionToRegister(value, RegisterOrPair.A)
@ -1086,20 +1031,6 @@ $repeatLabel""")
}
}
internal fun signExtendStackLsb(valueDt: DataType) {
// sign extend signed byte on stack to signed word on stack
when(valueDt) {
DataType.UBYTE -> {
if(isTargetCpu(CpuType.CPU65c02))
out(" stz P8ESTACK_HI+1,x")
else
out(" lda #0 | sta P8ESTACK_HI+1,x")
}
DataType.BYTE -> out(" jsr prog8_lib.sign_extend_stack_byte")
else -> throw AssemblyError("need byte type")
}
}
internal fun signExtendVariableLsb(asmvar: String, valueDt: DataType) {
// sign extend signed byte in a var to a full word in that variable
when(valueDt) {
@ -1728,7 +1659,7 @@ $repeatLabel""")
}
else if (left is PtMemoryByte) {
return if(rightConstVal.number.toInt()!=0) {
translateDirectMemReadExpressionToRegAorStack(left, false)
translateDirectMemReadExpressionToRegA(left)
code("#${rightConstVal.number.toInt()}")
}
else
@ -1875,7 +1806,7 @@ $repeatLabel""")
out(" beq $jumpIfFalseLabel")
}
else if (left is PtMemoryByte) {
translateDirectMemReadExpressionToRegAorStack(left, false)
translateDirectMemReadExpressionToRegA(left)
return if(rightConstVal.number.toInt()!=0)
code("#${rightConstVal.number.toInt()}")
else
@ -2036,7 +1967,7 @@ $repeatLabel""")
out(" bne $jumpIfFalseLabel")
}
else if (left is PtMemoryByte) {
translateDirectMemReadExpressionToRegAorStack(left, false)
translateDirectMemReadExpressionToRegA(left)
return if(rightConstVal.number.toInt()!=0)
code("#${rightConstVal.number.toInt()}")
else
@ -2200,7 +2131,7 @@ $repeatLabel""")
}
else if (left is PtMemoryByte) {
if(rightConstVal.number.toInt()!=0) {
translateDirectMemReadExpressionToRegAorStack(left, false)
translateDirectMemReadExpressionToRegA(left)
code("#${rightConstVal.number.toInt()}")
}
return
@ -2363,7 +2294,7 @@ $repeatLabel""")
out(" bne $jumpIfFalseLabel")
}
else if (left is PtMemoryByte) {
translateDirectMemReadExpressionToRegAorStack(left, false)
translateDirectMemReadExpressionToRegA(left)
return if(rightConstVal.number.toInt()!=0)
code("#${rightConstVal.number.toInt()}")
else
@ -2409,7 +2340,7 @@ $repeatLabel""")
out(" beq $jumpIfFalseLabel")
}
else if (left is PtMemoryByte) {
translateDirectMemReadExpressionToRegAorStack(left, false)
translateDirectMemReadExpressionToRegA(left)
return if(rightConstVal.number.toInt()!=0)
code("#${rightConstVal.number.toInt()}")
else
@ -2865,22 +2796,14 @@ $repeatLabel""")
+""")
}
internal fun translateDirectMemReadExpressionToRegAorStack(expr: PtMemoryByte, pushResultOnEstack: Boolean) {
internal fun translateDirectMemReadExpressionToRegA(expr: PtMemoryByte) {
fun assignViaExprEval() {
assignExpressionToVariable(expr.address, "P8ZP_SCRATCH_W2", DataType.UWORD)
if (isTargetCpu(CpuType.CPU65c02)) {
if (pushResultOnEstack) {
out(" lda (P8ZP_SCRATCH_W2) | dex | sta P8ESTACK_LO+1,x")
} else {
out(" lda (P8ZP_SCRATCH_W2)")
}
out(" lda (P8ZP_SCRATCH_W2)")
} else {
if (pushResultOnEstack) {
out(" ldy #0 | lda (P8ZP_SCRATCH_W2),y | dex | sta P8ESTACK_LO+1,x")
} else {
out(" ldy #0 | lda (P8ZP_SCRATCH_W2),y")
}
out(" ldy #0 | lda (P8ZP_SCRATCH_W2),y")
}
}
@ -2888,21 +2811,14 @@ $repeatLabel""")
is PtNumber -> {
val address = (expr.address as PtNumber).number.toInt()
out(" lda ${address.toHex()}")
if(pushResultOnEstack)
out(" sta P8ESTACK_LO,x | dex")
}
is PtIdentifier -> {
// the identifier is a pointer variable, so read the value from the address in it
loadByteFromPointerIntoA(expr.address as PtIdentifier)
if(pushResultOnEstack)
out(" sta P8ESTACK_LO,x | dex")
}
is PtBinaryExpression -> {
val addrExpr = expr.address as PtBinaryExpression
if(tryOptimizedPointerAccessWithA(addrExpr, addrExpr.operator, false)) {
if(pushResultOnEstack)
out(" sta P8ESTACK_LO,x | dex")
} else {
if(!tryOptimizedPointerAccessWithA(addrExpr, addrExpr.operator, false)) {
assignViaExprEval()
}
}
@ -3098,6 +3014,14 @@ $repeatLabel""")
}
}
internal fun pushFAC1() {
out(" jsr floats.pushFAC1")
}
internal fun popFAC1() {
out(" jsr floats.popFAC1")
}
internal fun needAsaveForExpr(arg: PtExpression): Boolean =
arg !is PtNumber && arg !is PtIdentifier && (arg !is PtMemoryByte || !arg.isSimple())
@ -3130,9 +3054,6 @@ $repeatLabel""")
* it's more consistent to only define these attributes on a Subroutine node.
*/
internal class SubroutineExtraAsmInfo {
var usedRegsaveA = false
var usedRegsaveX = false
var usedRegsaveY = false
var usedFloatEvalResultVar1 = false
var usedFloatEvalResultVar2 = false

54
codeGenCpu6502/src/prog8/codegen/cpu6502/AsmOptimizer.kt
View File

@ -15,21 +15,7 @@ internal fun optimizeAssembly(lines: MutableList<String>, machine: IMachineDefin
var linesByFour = getLinesBy(lines, 4)
var mods = optimizeUselessStackByteWrites(linesByFour)
if(mods.isNotEmpty()) {
apply(mods, lines)
linesByFour = getLinesBy(lines, 4)
numberOfOptimizations++
}
mods = optimizeIncDec(linesByFour)
if(mods.isNotEmpty()) {
apply(mods, lines)
linesByFour = getLinesBy(lines, 4)
numberOfOptimizations++
}
mods = optimizeCmpSequence(linesByFour)
var mods = optimizeIncDec(linesByFour)
if(mods.isNotEmpty()) {
apply(mods, lines)
linesByFour = getLinesBy(lines, 4)
@ -97,44 +83,6 @@ private fun getLinesBy(lines: MutableList<String>, windowSize: Int) =
// all lines (that aren't empty or comments) in sliding windows of certain size
lines.withIndex().filter { it.value.isNotBlank() && !it.value.trimStart().startsWith(';') }.windowed(windowSize, partialWindows = false)
private fun optimizeCmpSequence(linesByFour: List<List<IndexedValue<String>>>): List<Modification> {
// when statement (on bytes) generates a sequence of:
// lda $ce01,x
// cmp #$20
// beq check_prog8_s72choice_32
// lda $ce01,x
// cmp #$21
// beq check_prog8_s73choice_33
// the repeated lda can be removed
val mods = mutableListOf<Modification>()
for(lines in linesByFour) {
if(lines[0].value.trim()=="lda P8ESTACK_LO+1,x" &&
lines[1].value.trim().startsWith("cmp ") &&
lines[2].value.trim().startsWith("beq ") &&
lines[3].value.trim()=="lda P8ESTACK_LO+1,x") {
mods.add(Modification(lines[3].index, true, null)) // remove the second lda
}
}
return mods
}
private fun optimizeUselessStackByteWrites(linesByFour: List<List<IndexedValue<String>>>): List<Modification> {
// sta on stack, dex, inx, lda from stack -> eliminate this useless stack byte write
// this is a lot harder for word values because the instruction sequence varies.
val mods = mutableListOf<Modification>()
for(lines in linesByFour) {
if(lines[0].value.trim()=="sta P8ESTACK_LO,x" &&
lines[1].value.trim()=="dex" &&
lines[2].value.trim()=="inx" &&
lines[3].value.trim()=="lda P8ESTACK_LO,x") {
mods.add(Modification(lines[1].index, true, null))
mods.add(Modification(lines[2].index, true, null))
mods.add(Modification(lines[3].index, true, null))
}
}
return mods
}
private fun optimizeSameAssignments(
linesByFourteen: List<List<IndexedValue<String>>>,
machine: IMachineDefinition,

576
codeGenCpu6502/src/prog8/codegen/cpu6502/BuiltinFunctionsAsmGen.kt
View File

@ -10,34 +10,31 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
private val asmgen: AsmGen6502Internal,
private val assignAsmGen: AssignmentAsmGen) {
internal fun translateFunctioncallExpression(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?): DataType? {
return translateFunctioncall(fcall, discardResult = false, resultToStack = resultToStack, resultRegister = resultRegister)
internal fun translateFunctioncallExpression(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?): DataType? {
return translateFunctioncall(fcall, discardResult = false, resultRegister = resultRegister)
}
internal fun translateFunctioncallStatement(fcall: PtBuiltinFunctionCall) {
translateFunctioncall(fcall, discardResult = true, resultToStack = false, resultRegister = null)
translateFunctioncall(fcall, discardResult = true, resultRegister = null)
}
private fun translateFunctioncall(fcall: PtBuiltinFunctionCall, discardResult: Boolean, resultToStack: Boolean, resultRegister: RegisterOrPair?): DataType? {
private fun translateFunctioncall(fcall: PtBuiltinFunctionCall, discardResult: Boolean, resultRegister: RegisterOrPair?): DataType? {
if (discardResult && fcall.hasNoSideEffects)
return null // can just ignore the whole function call altogether
if(discardResult && resultToStack)
throw AssemblyError("cannot both discard the result AND put it onto stack")
val sscope = fcall.definingISub()
when (fcall.name) {
"msb" -> funcMsb(fcall, resultToStack, resultRegister)
"lsb" -> funcLsb(fcall, resultToStack, resultRegister)
"mkword" -> funcMkword(fcall, resultToStack, resultRegister)
"clamp__byte", "clamp__ubyte", "clamp__word", "clamp__uword" -> funcClamp(fcall, resultToStack, resultRegister)
"min__byte", "min__ubyte", "min__word", "min__uword" -> funcMin(fcall, resultToStack, resultRegister)
"max__byte", "max__ubyte", "max__word", "max__uword" -> funcMax(fcall, resultToStack, resultRegister)
"abs__byte", "abs__word", "abs__float" -> funcAbs(fcall, resultToStack, resultRegister, sscope)
"any", "all" -> funcAnyAll(fcall, resultToStack, resultRegister, sscope)
"sgn" -> funcSgn(fcall, resultToStack, resultRegister, sscope)
"sqrt__ubyte", "sqrt__uword", "sqrt__float" -> funcSqrt(fcall, resultToStack, resultRegister, sscope)
"msb" -> funcMsb(fcall, resultRegister)
"lsb" -> funcLsb(fcall, resultRegister)
"mkword" -> funcMkword(fcall, resultRegister)
"clamp__byte", "clamp__ubyte", "clamp__word", "clamp__uword" -> funcClamp(fcall, resultRegister)
"min__byte", "min__ubyte", "min__word", "min__uword" -> funcMin(fcall, resultRegister)
"max__byte", "max__ubyte", "max__word", "max__uword" -> funcMax(fcall, resultRegister)
"abs__byte", "abs__word", "abs__float" -> funcAbs(fcall, resultRegister, sscope)
"any", "all" -> funcAnyAll(fcall, resultRegister, sscope)
"sgn" -> funcSgn(fcall, resultRegister, sscope)
"sqrt__ubyte", "sqrt__uword", "sqrt__float" -> funcSqrt(fcall, resultRegister, sscope)
"divmod__ubyte" -> funcDivmod(fcall)
"divmod__uword" -> funcDivmodW(fcall)
"rol" -> funcRol(fcall)
@ -46,8 +43,8 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
"ror2" -> funcRor2(fcall)
"sort" -> funcSort(fcall)
"reverse" -> funcReverse(fcall)
"memory" -> funcMemory(fcall, discardResult, resultToStack, resultRegister)
"peekw" -> funcPeekW(fcall, resultToStack, resultRegister)
"memory" -> funcMemory(fcall, discardResult, resultRegister)
"peekw" -> funcPeekW(fcall, resultRegister)
"peek" -> throw AssemblyError("peek() should have been replaced by @()")
"pokew" -> funcPokeW(fcall)
"pokemon" -> { /* meme function */ }
@ -71,12 +68,10 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
asmgen.popCpuStack(DataType.UWORD, target, fcall.definingISub())
}
"rsave" -> funcRsave()
"rsavex" -> funcRsaveX()
"rrestore" -> funcRrestore()
"rrestorex" -> funcRrestoreX()
"cmp" -> funcCmp(fcall)
"callfar" -> funcCallFar(fcall)
"prog8_lib_stringcompare" -> funcStringCompare(fcall, resultToStack)
"prog8_lib_stringcompare" -> funcStringCompare(fcall)
else -> throw AssemblyError("missing asmgen for builtin func ${fcall.name}")
}
@ -115,11 +110,9 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
sty $remainderVar+1""")
}
private fun funcStringCompare(fcall: PtBuiltinFunctionCall, resultToStack: Boolean) {
private fun funcStringCompare(fcall: PtBuiltinFunctionCall) {
asmgen.assignWordOperandsToAYAndVar(fcall.args[0], fcall.args[1], "P8ZP_SCRATCH_W2")
asmgen.out(" jsr prog8_lib.strcmp_mem")
if(resultToStack)
asmgen.out(" sta P8ESTACK_LO,x | dex")
}
private fun funcRsave() {
@ -142,13 +135,6 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
lda P8ZP_SCRATCH_REG""")
}
private fun funcRsaveX() {
if (asmgen.isTargetCpu(CpuType.CPU65c02))
asmgen.out(" phx")
else
asmgen.out(" txa | pha")
}
private fun funcRrestore() {
if (asmgen.isTargetCpu(CpuType.CPU65c02))
asmgen.out("""
@ -166,13 +152,6 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
plp""")
}
private fun funcRrestoreX() {
if (asmgen.isTargetCpu(CpuType.CPU65c02))
asmgen.out(" plx")
else
asmgen.out(" sta P8ZP_SCRATCH_B1 | pla | tax | lda P8ZP_SCRATCH_B1")
}
private fun funcCallFar(fcall: PtBuiltinFunctionCall) {
if(asmgen.options.compTarget.name != "cx16")
throw AssemblyError("callfar only works on cx16 target at this time")
@ -253,7 +232,7 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
}
}
private fun funcMemory(fcall: PtBuiltinFunctionCall, discardResult: Boolean, resultToStack: Boolean, resultRegister: RegisterOrPair?) {
private fun funcMemory(fcall: PtBuiltinFunctionCall, discardResult: Boolean, resultRegister: RegisterOrPair?) {
if(discardResult)
throw AssemblyError("should not discard result of memory allocation at $fcall")
val name = (fcall.args[0] as PtString).value
@ -263,41 +242,25 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
addressOf.add(slabname)
addressOf.parent = fcall
val src = AsmAssignSource(SourceStorageKind.EXPRESSION, program, asmgen, DataType.UWORD, expression = addressOf)
val target =
if(resultToStack)
AsmAssignTarget(TargetStorageKind.STACK, asmgen, DataType.UWORD, null, fcall.position)
else
AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, false, fcall.position, null, asmgen)
val target = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, false, fcall.position, null, asmgen)
val assign = AsmAssignment(src, target, program.memsizer, fcall.position)
asmgen.translateNormalAssignment(assign, fcall.definingISub())
}
private fun funcSqrt(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?, scope: IPtSubroutine?) {
private fun funcSqrt(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?, scope: IPtSubroutine?) {
translateArguments(fcall, scope)
when(fcall.args[0].type) {
DataType.UBYTE -> {
if(resultToStack)
asmgen.out(" ldy #0 | jsr prog8_lib.func_sqrt16_stack")
else {
asmgen.out(" ldy #0 | jsr prog8_lib.func_sqrt16_into_A")
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A, false)
}
asmgen.out(" ldy #0 | jsr prog8_lib.func_sqrt16_into_A")
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A, false)
}
DataType.UWORD -> {
if(resultToStack)
asmgen.out(" jsr prog8_lib.func_sqrt16_stack")
else {
asmgen.out(" jsr prog8_lib.func_sqrt16_into_A")
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A, false)
}
asmgen.out(" jsr prog8_lib.func_sqrt16_into_A")
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A, false)
}
DataType.FLOAT -> {
asmgen.out(" jsr floats.func_sqrt_into_FAC1")
if(resultToStack)
assignAsmGen.assignFAC1float(AsmAssignTarget(TargetStorageKind.STACK, asmgen, DataType.FLOAT, scope, fcall.position))
else {
assignAsmGen.assignFAC1float(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.FAC1, true, fcall.position, scope, asmgen))
}
assignAsmGen.assignFAC1float(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.FAC1, true, fcall.position, scope, asmgen))
}
else -> throw AssemblyError("weird dt")
}
@ -466,16 +429,13 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
} else {
val ptrAndIndex = asmgen.pointerViaIndexRegisterPossible(what.address)
if(ptrAndIndex!=null) {
asmgen.saveRegisterLocal(CpuRegister.X, fcall.definingISub()!!)
asmgen.assignExpressionToRegister(ptrAndIndex.second, RegisterOrPair.X)
asmgen.saveRegisterLocal(CpuRegister.X, fcall.definingISub()!!)
asmgen.assignExpressionToRegister(ptrAndIndex.second, RegisterOrPair.A)
asmgen.saveRegisterStack(CpuRegister.A, true)
asmgen.assignExpressionToRegister(ptrAndIndex.first, RegisterOrPair.AY)
asmgen.restoreRegisterLocal(CpuRegister.X)
asmgen.out(" sta (+) + 1 | sty (+) + 2")
asmgen.restoreRegisterStack(CpuRegister.X, false)
asmgen.out("""
sta (+) + 1
sty (+) + 2
+ ror ${'$'}ffff,x ; modified""")
asmgen.restoreRegisterLocal(CpuRegister.X)
} else {
asmgen.assignExpressionToRegister(what.address, RegisterOrPair.AY)
asmgen.out("""
@ -571,16 +531,13 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
} else {
val ptrAndIndex = asmgen.pointerViaIndexRegisterPossible(what.address)
if(ptrAndIndex!=null) {
asmgen.saveRegisterLocal(CpuRegister.X, fcall.definingISub()!!)
asmgen.assignExpressionToRegister(ptrAndIndex.second, RegisterOrPair.X)
asmgen.saveRegisterLocal(CpuRegister.X, fcall.definingISub()!!)
asmgen.assignExpressionToRegister(ptrAndIndex.second, RegisterOrPair.A)
asmgen.saveRegisterStack(CpuRegister.A, true)
asmgen.assignExpressionToRegister(ptrAndIndex.first, RegisterOrPair.AY)
asmgen.restoreRegisterLocal(CpuRegister.X)
asmgen.out(" sta (+) + 1 | sty (+) + 2")
asmgen.restoreRegisterStack(CpuRegister.X, false)
asmgen.out("""
sta (+) + 1
sty (+) + 2
+ rol ${'$'}ffff,x ; modified""")
asmgen.restoreRegisterLocal(CpuRegister.X)
} else {
asmgen.assignExpressionToRegister(what.address, RegisterOrPair.AY)
asmgen.out("""
@ -633,88 +590,56 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
asmgen.assignExpressionToVariable(indexer.index, "prog8_lib.${operation}_array_u${dt}._arg_index", DataType.UBYTE)
}
private fun funcSgn(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?, scope: IPtSubroutine?) {
private fun funcSgn(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?, scope: IPtSubroutine?) {
translateArguments(fcall, scope)
val dt = fcall.args.single().type
if(resultToStack) {
when (dt) {
DataType.UBYTE -> asmgen.out(" jsr prog8_lib.func_sign_ub_stack")
DataType.BYTE -> asmgen.out(" jsr prog8_lib.func_sign_b_stack")
DataType.UWORD -> asmgen.out(" jsr prog8_lib.func_sign_uw_stack")
DataType.WORD -> asmgen.out(" jsr prog8_lib.func_sign_w_stack")
DataType.FLOAT -> asmgen.out(" jsr floats.func_sign_f_stack")
else -> throw AssemblyError("weird type $dt")
}
} else {
when (dt) {
DataType.UBYTE -> asmgen.out(" jsr prog8_lib.func_sign_ub_into_A")
DataType.BYTE -> asmgen.out(" jsr prog8_lib.func_sign_b_into_A")
DataType.UWORD -> asmgen.out(" jsr prog8_lib.func_sign_uw_into_A")
DataType.WORD -> asmgen.out(" jsr prog8_lib.func_sign_w_into_A")
DataType.FLOAT -> asmgen.out(" jsr floats.func_sign_f_into_A")
else -> throw AssemblyError("weird type $dt")
}
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A, true)
when (dt) {
DataType.UBYTE -> asmgen.out(" jsr prog8_lib.func_sign_ub_into_A")
DataType.BYTE -> asmgen.out(" jsr prog8_lib.func_sign_b_into_A")
DataType.UWORD -> asmgen.out(" jsr prog8_lib.func_sign_uw_into_A")
DataType.WORD -> asmgen.out(" jsr prog8_lib.func_sign_w_into_A")
DataType.FLOAT -> asmgen.out(" jsr floats.func_sign_f_into_A")
else -> throw AssemblyError("weird type $dt")
}
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A, true)
}
private fun funcAnyAll(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?, scope: IPtSubroutine?) {
private fun funcAnyAll(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?, scope: IPtSubroutine?) {
outputAddressAndLenghtOfArray(fcall.args[0])
val dt = fcall.args.single().type
if(resultToStack) {
when (dt) {
DataType.ARRAY_B, DataType.ARRAY_UB, DataType.STR -> asmgen.out(" jsr prog8_lib.func_${fcall.name}_b_stack")
DataType.ARRAY_UW, DataType.ARRAY_W -> asmgen.out(" jsr prog8_lib.func_${fcall.name}_w_stack")
DataType.ARRAY_F -> asmgen.out(" jsr floats.func_${fcall.name}_f_stack")
in SplitWordArrayTypes -> TODO("split word any/all")
else -> throw AssemblyError("weird type $dt")
}
} else {
when (dt) {
DataType.ARRAY_B, DataType.ARRAY_UB, DataType.STR -> asmgen.out(" jsr prog8_lib.func_${fcall.name}_b_into_A | ldy #0")
DataType.ARRAY_UW, DataType.ARRAY_W -> asmgen.out(" jsr prog8_lib.func_${fcall.name}_w_into_A | ldy #0")
DataType.ARRAY_F -> asmgen.out(" jsr floats.func_${fcall.name}_f_into_A | ldy #0")
in SplitWordArrayTypes -> TODO("split word any/all")
else -> throw AssemblyError("weird type $dt")
}
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A, dt in SignedDatatypes)
when (dt) {
DataType.ARRAY_B, DataType.ARRAY_UB, DataType.STR -> asmgen.out(" jsr prog8_lib.func_${fcall.name}_b_into_A | ldy #0")
DataType.ARRAY_UW, DataType.ARRAY_W -> asmgen.out(" jsr prog8_lib.func_${fcall.name}_w_into_A | ldy #0")
DataType.ARRAY_F -> asmgen.out(" jsr floats.func_${fcall.name}_f_into_A | ldy #0")
in SplitWordArrayTypes -> TODO("split word any/all")
else -> throw AssemblyError("weird type $dt")
}
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A, dt in SignedDatatypes)
}
private fun funcAbs(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?, scope: IPtSubroutine?) {
private fun funcAbs(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?, scope: IPtSubroutine?) {
translateArguments(fcall, scope)
val dt = fcall.args.single().type
if(resultToStack) {
when (dt) {
DataType.BYTE -> asmgen.out(" jsr prog8_lib.abs_b_stack")
DataType.WORD -> asmgen.out(" jsr prog8_lib.abs_w_stack")
else -> {
asmgen.out(" jsr floats.func_abs_f_into_FAC1")
assignAsmGen.assignFAC1float(AsmAssignTarget(TargetStorageKind.STACK, asmgen, DataType.FLOAT, scope, fcall.position))
}
when (dt) {
DataType.BYTE -> {
asmgen.out(" jsr prog8_lib.abs_b_into_A")
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A,false)
}
} else {
when (dt) {
DataType.BYTE -> {
asmgen.out(" jsr prog8_lib.abs_b_into_A")
assignAsmGen.assignRegisterByte(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, false, fcall.position, scope, asmgen), CpuRegister.A,false)
}
DataType.WORD -> {
asmgen.out(" jsr prog8_lib.abs_w_into_AY")
assignAsmGen.assignRegisterpairWord(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, false, fcall.position, scope, asmgen), RegisterOrPair.AY)
}
DataType.FLOAT -> {
asmgen.out(" jsr floats.func_abs_f_into_FAC1")
assignAsmGen.assignFAC1float(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.FAC1, true, fcall.position, scope, asmgen))
}
DataType.UBYTE -> {
asmgen.assignRegister(RegisterOrPair.A, AsmAssignTarget.fromRegisters(resultRegister?:RegisterOrPair.A, false, fcall.position, scope, asmgen))
}
DataType.UWORD -> {
asmgen.assignRegister(RegisterOrPair.AY, AsmAssignTarget.fromRegisters(resultRegister?:RegisterOrPair.AY, false, fcall.position, scope, asmgen))
}
else -> throw AssemblyError("weird type")
DataType.WORD -> {
asmgen.out(" jsr prog8_lib.abs_w_into_AY")
assignAsmGen.assignRegisterpairWord(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, false, fcall.position, scope, asmgen), RegisterOrPair.AY)
}
DataType.FLOAT -> {
asmgen.out(" jsr floats.func_abs_f_into_FAC1")
assignAsmGen.assignFAC1float(AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.FAC1, true, fcall.position, scope, asmgen))
}
DataType.UBYTE -> {
asmgen.assignRegister(RegisterOrPair.A, AsmAssignTarget.fromRegisters(resultRegister?:RegisterOrPair.A, false, fcall.position, scope, asmgen))
}
DataType.UWORD -> {
asmgen.assignRegister(RegisterOrPair.AY, AsmAssignTarget.fromRegisters(resultRegister?:RegisterOrPair.AY, false, fcall.position, scope, asmgen))
}
else -> throw AssemblyError("weird type")
}
}
@ -730,7 +655,6 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
val varname = asmgen.asmVariableName(addrExpr)
if(asmgen.isZpVar(addrExpr)) {
// pointervar is already in the zero page, no need to copy
asmgen.saveRegisterLocal(CpuRegister.X, fcall.definingISub()!!)
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.AX)
if (asmgen.isTargetCpu(CpuType.CPU65c02)) {
asmgen.out("""
@ -746,7 +670,6 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
iny
sta ($varname),y""")
}
asmgen.restoreRegisterLocal(CpuRegister.X)
return
}
}
@ -756,18 +679,15 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
if(result!=null && pointer!=null && asmgen.isZpVar(pointer)) {
// can do ZP,Y indexing
val varname = asmgen.asmVariableName(pointer)
val scope = fcall.definingISub()!!
asmgen.saveRegisterLocal(CpuRegister.X, scope)
asmgen.assignExpressionToRegister(result.second, RegisterOrPair.Y)
asmgen.saveRegisterLocal(CpuRegister.Y, scope)
asmgen.saveRegisterStack(CpuRegister.Y, false)
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.AX)
asmgen.restoreRegisterLocal(CpuRegister.Y)
asmgen.restoreRegisterStack(CpuRegister.Y, true)
asmgen.out("""
sta ($varname),y
txa
iny
sta ($varname),y""")
asmgen.restoreRegisterLocal(CpuRegister.X)
return
}
}
@ -779,7 +699,7 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
asmgen.out(" jsr prog8_lib.func_pokew")
}
private fun funcPeekW(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?) {
private fun funcPeekW(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?) {
fun fallback() {
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.AY)
asmgen.out(" jsr prog8_lib.func_peekw")
@ -830,23 +750,19 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
else -> fallback()
}
if(resultToStack){
asmgen.out(" sta P8ESTACK_LO,x | tya | sta P8ESTACK_HI,x | dex")
} else {
when(resultRegister ?: RegisterOrPair.AY) {
RegisterOrPair.AY -> {}
RegisterOrPair.AX -> asmgen.out(" sty P8ZP_SCRATCH_REG | ldx P8ZP_SCRATCH_REG")
RegisterOrPair.XY -> asmgen.out(" tax")
in Cx16VirtualRegisters -> asmgen.out(
" sta cx16.${
resultRegister.toString().lowercase()
} | sty cx16.${resultRegister.toString().lowercase()}+1")
else -> throw AssemblyError("invalid reg")
}
when(resultRegister ?: RegisterOrPair.AY) {
RegisterOrPair.AY -> {}
RegisterOrPair.AX -> asmgen.out(" sty P8ZP_SCRATCH_REG | ldx P8ZP_SCRATCH_REG")
RegisterOrPair.XY -> asmgen.out(" tax")
in Cx16VirtualRegisters -> asmgen.out(
" sta cx16.${
resultRegister.toString().lowercase()
} | sty cx16.${resultRegister.toString().lowercase()}+1")
else -> throw AssemblyError("invalid reg")
}
}
private fun funcClamp(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?) {
private fun funcClamp(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?) {
val signed = fcall.type in SignedDatatypes
when(fcall.type) {
in ByteDatatypes -> {
@ -854,30 +770,22 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
assignAsmGen.assignExpressionToVariable(fcall.args[2], "P8ZP_SCRATCH_W1+1", fcall.args[2].type) // maximum
assignAsmGen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.A, signed) // value
asmgen.out(" jsr prog8_lib.func_clamp_${fcall.type.toString().lowercase()}")
if(resultToStack) {
asmgen.out(" sta P8ESTACK_LO,x | dex")
} else {
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, signed, fcall.position, fcall.definingISub(), asmgen)
assignAsmGen.assignRegisterByte(targetReg, CpuRegister.A, signed)
}
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, signed, fcall.position, fcall.definingISub(), asmgen)
assignAsmGen.assignRegisterByte(targetReg, CpuRegister.A, signed)
}
in WordDatatypes -> {
assignAsmGen.assignExpressionToVariable(fcall.args[1], "P8ZP_SCRATCH_W1", fcall.args[1].type) // minimum
assignAsmGen.assignExpressionToVariable(fcall.args[2], "P8ZP_SCRATCH_W2", fcall.args[2].type) // maximum
assignAsmGen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.AY, signed) // value
asmgen.out(" jsr prog8_lib.func_clamp_${fcall.type.toString().lowercase()}")
if(resultToStack) {
asmgen.out(" sta P8ESTACK_LO,x | sty P8ESTACK_HI,x | dex")
} else {
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, signed, fcall.position, fcall.definingISub(), asmgen)
assignAsmGen.assignRegisterpairWord(targetReg, RegisterOrPair.AY)
}
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, signed, fcall.position, fcall.definingISub(), asmgen)
assignAsmGen.assignRegisterpairWord(targetReg, RegisterOrPair.AY)
}
else -> throw AssemblyError("invalid dt")
}
}
private fun funcMin(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?) {
private fun funcMin(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?) {
val signed = fcall.type in SignedDatatypes
if(fcall.type in ByteDatatypes) {
asmgen.assignExpressionToVariable(fcall.args[1], "P8ZP_SCRATCH_B1", fcall.type) // right
@ -887,12 +795,8 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
asmgen.out("""
lda P8ZP_SCRATCH_B1
+""")
if(resultToStack) {
asmgen.out(" sta P8ESTACK_LO,x | dex")
} else {
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, signed, fcall.position, fcall.definingISub(), asmgen)
asmgen.assignRegister(RegisterOrPair.A, targetReg)
}
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, signed, fcall.position, fcall.definingISub(), asmgen)
asmgen.assignRegister(RegisterOrPair.A, targetReg)
} else if(fcall.type in WordDatatypes) {
asmgen.assignExpressionToVariable(fcall.args[0], "P8ZP_SCRATCH_W1", fcall.type) // left
asmgen.assignExpressionToVariable(fcall.args[1], "P8ZP_SCRATCH_W2", fcall.type) // right
@ -928,18 +832,14 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
ldy P8ZP_SCRATCH_W1+1
+""")
}
if(resultToStack) {
asmgen.out(" sta P8ESTACK_LO,x | sty P8ESTACK_HI,x | dex")
} else {
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, signed, fcall.position, fcall.definingISub(), asmgen)
asmgen.assignRegister(RegisterOrPair.AY, targetReg)
}
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, signed, fcall.position, fcall.definingISub(), asmgen)
asmgen.assignRegister(RegisterOrPair.AY, targetReg)
} else {
throw AssemblyError("min float not supported")
}
}
private fun funcMax(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?) {
private fun funcMax(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?) {
val signed = fcall.type in SignedDatatypes
if(fcall.type in ByteDatatypes) {
asmgen.assignExpressionToVariable(fcall.args[0], "P8ZP_SCRATCH_B1", fcall.type) // left
@ -949,12 +849,8 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
asmgen.out("""
lda P8ZP_SCRATCH_B1
+""")
if(resultToStack) {
asmgen.out(" sta P8ESTACK_LO,x | dex")
} else {
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, signed, fcall.position, fcall.definingISub(), asmgen)
asmgen.assignRegister(RegisterOrPair.A, targetReg)
}
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.A, signed, fcall.position, fcall.definingISub(), asmgen)
asmgen.assignRegister(RegisterOrPair.A, targetReg)
} else if(fcall.type in WordDatatypes) {
asmgen.assignExpressionToVariable(fcall.args[0], "P8ZP_SCRATCH_W1", fcall.type) // left
asmgen.assignExpressionToVariable(fcall.args[1], "P8ZP_SCRATCH_W2", fcall.type) // right
@ -990,72 +886,61 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
ldy P8ZP_SCRATCH_W2+1
+""")
}
if(resultToStack) {
asmgen.out(" sta P8ESTACK_LO,x | sty P8ESTACK_HI,x | dex")
} else {
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, signed, fcall.position, fcall.definingISub(), asmgen)
asmgen.assignRegister(RegisterOrPair.AY, targetReg)
}
val targetReg = AsmAssignTarget.fromRegisters(resultRegister ?: RegisterOrPair.AY, signed, fcall.position, fcall.definingISub(), asmgen)
asmgen.assignRegister(RegisterOrPair.AY, targetReg)
} else {
throw AssemblyError("max float not supported")
}
}
private fun funcMkword(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?) {
if(resultToStack) {
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.A) // msb
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.A) // lsb
asmgen.out(" sta P8ESTACK_LO,x | pla | sta P8ESTACK_HI,x | dex")
} else {
val reg = resultRegister ?: RegisterOrPair.AY
var needAsave = asmgen.needAsaveForExpr(fcall.args[0])
if(!needAsave) {
val mr0 = fcall.args[0] as? PtMemoryByte
val mr1 = fcall.args[1] as? PtMemoryByte
if (mr0 != null)
needAsave = mr0.address !is PtNumber
if (mr1 != null)
needAsave = needAsave or (mr1.address !is PtNumber)
private fun funcMkword(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?) {
val reg = resultRegister ?: RegisterOrPair.AY
var needAsave = asmgen.needAsaveForExpr(fcall.args[0])
if(!needAsave) {
val mr0 = fcall.args[0] as? PtMemoryByte
val mr1 = fcall.args[1] as? PtMemoryByte
if (mr0 != null)
needAsave = mr0.address !is PtNumber
if (mr1 != null)
needAsave = needAsave or (mr1.address !is PtNumber)
}
when(reg) {
RegisterOrPair.AX -> {
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.A) // lsb
if(needAsave)
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.X) // msb
if(needAsave)
asmgen.out(" pla")
}
when(reg) {
RegisterOrPair.AX -> {
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.A) // lsb
if(needAsave)
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.X) // msb
if(needAsave)
asmgen.out(" pla")
}
RegisterOrPair.AY -> {
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.A) // lsb
if(needAsave)
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.Y) // msb
if(needAsave)
asmgen.out(" pla")
}
RegisterOrPair.XY -> {
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.A) // lsb
if(needAsave)
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.Y) // msb
if(needAsave)
asmgen.out(" pla")
asmgen.out(" tax")
}
in Cx16VirtualRegisters -> {
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.A) // lsb
asmgen.out(" sta cx16.${reg.toString().lowercase()}")
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.A) // msb
asmgen.out(" sta cx16.${reg.toString().lowercase()}+1")
}
else -> throw AssemblyError("invalid mkword target reg")
RegisterOrPair.AY -> {
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.A) // lsb
if(needAsave)
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.Y) // msb
if(needAsave)
asmgen.out(" pla")
}
RegisterOrPair.XY -> {
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.A) // lsb
if(needAsave)
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.Y) // msb
if(needAsave)
asmgen.out(" pla")
asmgen.out(" tax")
}
in Cx16VirtualRegisters -> {
asmgen.assignExpressionToRegister(fcall.args[1], RegisterOrPair.A) // lsb
asmgen.out(" sta cx16.${reg.toString().lowercase()}")
asmgen.assignExpressionToRegister(fcall.args[0], RegisterOrPair.A) // msb
asmgen.out(" sta cx16.${reg.toString().lowercase()}+1")
}
else -> throw AssemblyError("invalid mkword target reg")
}
}
private fun funcMsb(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?) {
private fun funcMsb(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?) {
val arg = fcall.args.single()
if (arg.type !in WordDatatypes)
throw AssemblyError("msb required word argument")
@ -1063,53 +948,44 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
throw AssemblyError("msb(const) should have been const-folded away")
if (arg is PtIdentifier) {
val sourceName = asmgen.asmVariableName(arg)
if(resultToStack) {
asmgen.out(" lda $sourceName+1 | sta P8ESTACK_LO,x | dex")
} else {
when(resultRegister) {
null, RegisterOrPair.A -> asmgen.out(" lda $sourceName+1")
RegisterOrPair.X -> asmgen.out(" ldx $sourceName+1")
RegisterOrPair.Y -> asmgen.out(" ldy $sourceName+1")
RegisterOrPair.AX -> asmgen.out(" lda $sourceName+1 | ldx #0")
RegisterOrPair.AY -> asmgen.out(" lda $sourceName+1 | ldy #0")
RegisterOrPair.XY -> asmgen.out(" ldx $sourceName+1 | ldy #0")
in Cx16VirtualRegisters -> {
val regname = resultRegister.name.lowercase()
if(asmgen.isTargetCpu(CpuType.CPU65c02))
asmgen.out(" lda $sourceName+1 | sta cx16.$regname | stz cx16.$regname+1")
else
asmgen.out(" lda $sourceName+1 | sta cx16.$regname | lda #0 | sta cx16.$regname+1")
}
else -> throw AssemblyError("invalid reg")
when(resultRegister) {
null, RegisterOrPair.A -> asmgen.out(" lda $sourceName+1")
RegisterOrPair.X -> asmgen.out(" ldx $sourceName+1")
RegisterOrPair.Y -> asmgen.out(" ldy $sourceName+1")
RegisterOrPair.AX -> asmgen.out(" lda $sourceName+1 | ldx #0")
RegisterOrPair.AY -> asmgen.out(" lda $sourceName+1 | ldy #0")
RegisterOrPair.XY -> asmgen.out(" ldx $sourceName+1 | ldy #0")
in Cx16VirtualRegisters -> {
val regname = resultRegister.name.lowercase()
if(asmgen.isTargetCpu(CpuType.CPU65c02))
asmgen.out(" lda $sourceName+1 | sta cx16.$regname | stz cx16.$regname+1")
else
asmgen.out(" lda $sourceName+1 | sta cx16.$regname | lda #0 | sta cx16.$regname+1")
}
else -> throw AssemblyError("invalid reg")
}
} else {
if(resultToStack) {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
asmgen.out(" tya | sta P8ESTACK_LO,x | dex")
} else {
when(resultRegister) {
null, RegisterOrPair.A -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
asmgen.out(" tya")
}
RegisterOrPair.X -> {
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AX)
asmgen.out(" pla")
}
RegisterOrPair.Y -> {
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
asmgen.out(" pla")
}
else -> throw AssemblyError("invalid reg")
when(resultRegister) {
null, RegisterOrPair.A -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
asmgen.out(" tya")
}
RegisterOrPair.X -> {
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AX)
asmgen.out(" pla")
}
RegisterOrPair.Y -> {
asmgen.out(" pha")
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
asmgen.out(" pla")
}
else -> throw AssemblyError("invalid reg")
}
}
}
private fun funcLsb(fcall: PtBuiltinFunctionCall, resultToStack: Boolean, resultRegister: RegisterOrPair?) {
private fun funcLsb(fcall: PtBuiltinFunctionCall, resultRegister: RegisterOrPair?) {
val arg = fcall.args.single()
if (arg.type !in WordDatatypes)
throw AssemblyError("lsb required word argument")
@ -1118,72 +994,60 @@ internal class BuiltinFunctionsAsmGen(private val program: PtProgram,
if (arg is PtIdentifier) {
val sourceName = asmgen.asmVariableName(arg)
if(resultToStack) {
asmgen.out(" lda $sourceName | sta P8ESTACK_LO,x | dex")
} else {
when(resultRegister) {
null, RegisterOrPair.A -> asmgen.out(" lda $sourceName")
RegisterOrPair.X -> asmgen.out(" ldx $sourceName")
RegisterOrPair.Y -> asmgen.out(" ldy $sourceName")
RegisterOrPair.AX -> asmgen.out(" lda $sourceName | ldx #0")
RegisterOrPair.AY -> asmgen.out(" lda $sourceName | ldy #0")
RegisterOrPair.XY -> asmgen.out(" ldx $sourceName | ldy #0")
in Cx16VirtualRegisters -> {
val regname = resultRegister.name.lowercase()
if(asmgen.isTargetCpu(CpuType.CPU65c02))
asmgen.out(" lda $sourceName | sta cx16.$regname | stz cx16.$regname+1")
else
asmgen.out(" lda $sourceName | sta cx16.$regname | lda #0 | sta cx16.$regname+1")
}
else -> throw AssemblyError("invalid reg")
when(resultRegister) {
null, RegisterOrPair.A -> asmgen.out(" lda $sourceName")
RegisterOrPair.X -> asmgen.out(" ldx $sourceName")
RegisterOrPair.Y -> asmgen.out(" ldy $sourceName")
RegisterOrPair.AX -> asmgen.out(" lda $sourceName | ldx #0")
RegisterOrPair.AY -> asmgen.out(" lda $sourceName | ldy #0")
RegisterOrPair.XY -> asmgen.out(" ldx $sourceName | ldy #0")
in Cx16VirtualRegisters -> {
val regname = resultRegister.name.lowercase()
if(asmgen.isTargetCpu(CpuType.CPU65c02))
asmgen.out(" lda $sourceName | sta cx16.$regname | stz cx16.$regname+1")
else
asmgen.out(" lda $sourceName | sta cx16.$regname | lda #0 | sta cx16.$regname+1")
}
else -> throw AssemblyError("invalid reg")
}
} else {
if(resultToStack) {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
// NOTE: we rely on the fact that the above assignment to AY, assigns the Lsb to A as the last instruction.
// this is required because the compiler assumes the status bits are set according to what A is (lsb)
// and will not generate another cmp when lsb() is directly used inside a comparison expression.
asmgen.out(" sta P8ESTACK_LO,x | dex")
} else {
when(resultRegister) {
null, RegisterOrPair.A -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
// NOTE: we rely on the fact that the above assignment to AY, assigns the Lsb to A as the last instruction.
// this is required because the compiler assumes the status bits are set according to what A is (lsb)
// and will not generate another cmp when lsb() is directly used inside a comparison expression.
}
RegisterOrPair.X -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.XY)
// NOTE: we rely on the fact that the above assignment to XY, assigns the Lsb to X as the last instruction.
// this is required because the compiler assumes the status bits are set according to what X is (lsb)
// and will not generate another cmp when lsb() is directly used inside a comparison expression.
}
RegisterOrPair.Y -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
asmgen.out(" tay | cpy #0")
}
RegisterOrPair.AY -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
asmgen.out(" ldy #0 | cmp #0")
}
RegisterOrPair.AX -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AX)
asmgen.out(" ldx #0 | cmp #0")
}
RegisterOrPair.XY -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.XY)
asmgen.out(" ldy #0 | cpx #0")
}
in Cx16VirtualRegisters -> {
asmgen.assignExpressionToRegister(fcall.args.single(), resultRegister)
val zero = PtNumber(DataType.UBYTE, 0.0, Position.DUMMY)
zero.parent=fcall
assignAsmGen.assignExpressionToVariable(zero, "cx16.${resultRegister.toString().lowercase()}H", DataType.UBYTE)
asmgen.out(" lda cx16.r0L")
}
else -> throw AssemblyError("invalid reg")
when(resultRegister) {
null, RegisterOrPair.A -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
// NOTE: we rely on the fact that the above assignment to AY, assigns the Lsb to A as the last instruction.
// this is required because the compiler assumes the status bits are set according to what A is (lsb)
// and will not generate another cmp when lsb() is directly used inside a comparison expression.
}
RegisterOrPair.X -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.XY)
// NOTE: we rely on the fact that the above assignment to XY, assigns the Lsb to X as the last instruction.
// this is required because the compiler assumes the status bits are set according to what X is (lsb)
// and will not generate another cmp when lsb() is directly used inside a comparison expression.
}
RegisterOrPair.Y -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
asmgen.out(" tay | cpy #0")
}
RegisterOrPair.AY -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AY)
asmgen.out(" ldy #0 | cmp #0")
}
RegisterOrPair.AX -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.AX)
asmgen.out(" ldx #0 | cmp #0")
}
RegisterOrPair.XY -> {
asmgen.assignExpressionToRegister(fcall.args.single(), RegisterOrPair.XY)
asmgen.out(" ldy #0 | cpx #0")
}
in Cx16VirtualRegisters -> {
asmgen.assignExpressionToRegister(fcall.args.single(), resultRegister)
val zero = PtNumber(DataType.UBYTE, 0.0, Position.DUMMY)
zero.parent=fcall
assignAsmGen.assignExpressionToVariable(zero, "cx16.${resultRegister.toString().lowercase()}H", DataType.UBYTE)
asmgen.out(" lda cx16.r0L")
}
else -> throw AssemblyError("invalid reg")
}
}
}

933
codeGenCpu6502/src/prog8/codegen/cpu6502/ExpressionsAsmGen.kt
View File

@ -1,933 +0,0 @@
package prog8.codegen.cpu6502
import prog8.code.ast.*
import prog8.code.core.*
import kotlin.math.absoluteValue
internal class ExpressionsAsmGen(private val program: PtProgram,
private val asmgen: AsmGen6502Internal,
private val allocator: VariableAllocator) {
@Deprecated("avoid calling this as it generates slow evalstack based code")
internal fun translateExpression(expression: PtExpression) {
if (this.asmgen.options.slowCodegenWarnings) {
asmgen.errors.warn("slow stack evaluation used for expression", expression.position)
}
translateExpressionInternal(expression)
}
// the rest of the methods are all PRIVATE
private fun translateExpressionInternal(expression: PtExpression) {
when(expression) {
is PtPrefix -> translateExpression(expression)
is PtBinaryExpression -> translateExpression(expression)
is PtArrayIndexer -> translateExpression(expression)
is PtTypeCast -> translateExpression(expression)
is PtAddressOf -> translateExpression(expression)
is PtMemoryByte -> asmgen.translateDirectMemReadExpressionToRegAorStack(expression, true)
is PtNumber -> translateExpression(expression)
is PtIdentifier -> translateExpression(expression)
is PtFunctionCall -> translateFunctionCallResultOntoStack(expression)
is PtBuiltinFunctionCall -> asmgen.translateBuiltinFunctionCallExpression(expression, true, null)
is PtContainmentCheck -> translateContainmentCheck(expression)
is PtArray, is PtString -> throw AssemblyError("string/array literal value assignment should have been replaced by a variable")
is PtRange -> throw AssemblyError("range expression should have been changed into array values")
is PtMachineRegister -> throw AssemblyError("machine register ast node should not occur in 6502 codegen it is for IR code")
else -> TODO("missing expression asmgen for $expression")
}
}
private fun translateContainmentCheck(check: PtContainmentCheck) {
asmgen.assignExpressionToRegister(check, RegisterOrPair.A)
asmgen.out(" sta P8ESTACK_LO,x | dex")
}
private fun translateFunctionCallResultOntoStack(call: PtFunctionCall) {
// only for use in nested expression evaluation
val symbol = asmgen.symbolTable.lookup(call.name)
val sub = symbol!!.astNode as IPtSubroutine
asmgen.saveXbeforeCall(call)
asmgen.translateFunctionCall(call)
if(sub.regXasResult()) {
// store the return value in X somewhere that we can access again below
asmgen.out(" stx P8ZP_SCRATCH_REG")
}
asmgen.restoreXafterCall(call)
val returns: List<Pair<RegisterOrStatusflag, DataType>> = sub.returnsWhatWhere()
for ((reg, _) in returns) {
// result value is in cpu or status registers, put it on the stack instead (as we're evaluating an expression tree)
if (reg.registerOrPair != null) {
when (reg.registerOrPair!!) {
RegisterOrPair.A -> asmgen.out(" sta P8ESTACK_LO,x | dex")
RegisterOrPair.Y -> asmgen.out(" tya | sta P8ESTACK_LO,x | dex")
RegisterOrPair.AY -> asmgen.out(" sta P8ESTACK_LO,x | tya | sta P8ESTACK_HI,x | dex")
RegisterOrPair.X -> asmgen.out(" lda P8ZP_SCRATCH_REG | sta P8ESTACK_LO,x | dex")
RegisterOrPair.AX -> asmgen.out(" sta P8ESTACK_LO,x | lda P8ZP_SCRATCH_REG | sta P8ESTACK_HI,x | dex")
RegisterOrPair.XY -> asmgen.out(" tya | sta P8ESTACK_HI,x | lda P8ZP_SCRATCH_REG | sta P8ESTACK_LO,x | dex")
RegisterOrPair.FAC1 -> asmgen.out(" jsr floats.push_fac1")
RegisterOrPair.FAC2 -> asmgen.out(" jsr floats.push_fac2")
RegisterOrPair.R0,
RegisterOrPair.R1,
RegisterOrPair.R2,
RegisterOrPair.R3,
RegisterOrPair.R4,
RegisterOrPair.R5,
RegisterOrPair.R6,
RegisterOrPair.R7,
RegisterOrPair.R8,
RegisterOrPair.R9,
RegisterOrPair.R10,
RegisterOrPair.R11,
RegisterOrPair.R12,
RegisterOrPair.R13,
RegisterOrPair.R14,
RegisterOrPair.R15 -> {
asmgen.out(
"""
lda cx16.${reg.registerOrPair.toString().lowercase()}
sta P8ESTACK_LO,x
lda cx16.${reg.registerOrPair.toString().lowercase()}+1
sta P8ESTACK_HI,x
dex
""")
}
}
} else when(reg.statusflag) {
Statusflag.Pc -> {
asmgen.out("""
lda #0
rol a
sta P8ESTACK_LO,x
dex""")
}
Statusflag.Pz -> {
asmgen.out("""
beq +
lda #0
beq ++
+ lda #1
+ sta P8ESTACK_LO,x
dex""")
}
Statusflag.Pv -> {
asmgen.out("""
bvs +
lda #0
beq ++
+ lda #1
+ sta P8ESTACK_LO,x
dex""")
}
Statusflag.Pn -> {
asmgen.out("""
bmi +
lda #0
beq ++
+ lda #1
+ sta P8ESTACK_LO,x
dex""")
}
null -> {}
}
}
}
private fun translateExpression(typecast: PtTypeCast) {
translateExpressionInternal(typecast.value)
when(typecast.value.type) {
DataType.UBYTE, DataType.BOOL -> {
when(typecast.type) {
DataType.UBYTE, DataType.BYTE -> {}
DataType.UWORD, DataType.WORD -> {
if(asmgen.isTargetCpu(CpuType.CPU65c02))
asmgen.out(" stz P8ESTACK_HI+1,x")
else
asmgen.out(" lda #0 | sta P8ESTACK_HI+1,x")
}
DataType.FLOAT -> asmgen.out(" jsr floats.stack_ub2float")
in PassByReferenceDatatypes -> throw AssemblyError("cannot cast to a pass-by-reference datatype")
else -> throw AssemblyError("weird type")
}
}
DataType.BYTE -> {
when(typecast.type) {
DataType.UBYTE, DataType.BYTE -> {}
DataType.UWORD, DataType.WORD -> asmgen.signExtendStackLsb(DataType.BYTE)
DataType.FLOAT -> asmgen.out(" jsr floats.stack_b2float")
in PassByReferenceDatatypes -> throw AssemblyError("cannot cast to a pass-by-reference datatype")
else -> throw AssemblyError("weird type")
}
}
DataType.UWORD -> {
when(typecast.type) {
DataType.BYTE, DataType.UBYTE -> {}
DataType.WORD, DataType.UWORD -> {}
DataType.FLOAT -> asmgen.out(" jsr floats.stack_uw2float")
in PassByReferenceDatatypes -> throw AssemblyError("cannot cast to a pass-by-reference datatype")
else -> throw AssemblyError("weird type")
}
}
DataType.WORD -> {
when(typecast.type) {
DataType.BYTE, DataType.UBYTE -> {}
DataType.WORD, DataType.UWORD -> {}
DataType.FLOAT -> asmgen.out(" jsr floats.stack_w2float")
in PassByReferenceDatatypes -> throw AssemblyError("cannot cast to a pass-by-reference datatype")
else -> throw AssemblyError("weird type")
}
}
DataType.FLOAT -> {
when(typecast.type) {
DataType.UBYTE -> asmgen.out(" jsr floats.stack_float2uw")
DataType.BYTE -> asmgen.out(" jsr floats.stack_float2w")
DataType.UWORD -> asmgen.out(" jsr floats.stack_float2uw")
DataType.WORD -> asmgen.out(" jsr floats.stack_float2w")
DataType.FLOAT -> {}
in PassByReferenceDatatypes -> throw AssemblyError("cannot cast to a pass-by-reference datatype")
else -> throw AssemblyError("weird type")
}
}
DataType.STR -> {
if (typecast.type != DataType.UWORD && typecast.type == DataType.STR)
throw AssemblyError("cannot typecast a string into another incompatitble type")
}
in PassByReferenceDatatypes -> throw AssemblyError("cannot cast pass-by-reference value into another type")
else -> throw AssemblyError("weird type")
}
}
private fun translateExpression(expr: PtAddressOf) {
val name = asmgen.asmVariableName(expr.identifier)
asmgen.out(" lda #<$name | sta P8ESTACK_LO,x | lda #>$name | sta P8ESTACK_HI,x | dex")
}
private fun translateExpression(expr: PtNumber) {
when(expr.type) {
DataType.UBYTE, DataType.BYTE -> asmgen.out(" lda #${expr.number.toHex()} | sta P8ESTACK_LO,x | dex")
DataType.UWORD, DataType.WORD -> asmgen.out("""
lda #<${expr.number.toHex()}
sta P8ESTACK_LO,x
lda #>${expr.number.toHex()}
sta P8ESTACK_HI,x
dex
""")
DataType.FLOAT -> {
val floatConst = allocator.getFloatAsmConst(expr.number)
asmgen.out(" lda #<$floatConst | ldy #>$floatConst | jsr floats.push_float")
}
else -> throw AssemblyError("weird type")
}
}
private fun translateExpression(expr: PtIdentifier) {
val varname = asmgen.asmVariableName(expr)
when(expr.type) {
DataType.UBYTE, DataType.BYTE -> {
asmgen.out(" lda $varname | sta P8ESTACK_LO,x | dex")
}
DataType.UWORD, DataType.WORD -> {
asmgen.out(" lda $varname | sta P8ESTACK_LO,x | lda $varname+1 | sta P8ESTACK_HI,x | dex")
}
DataType.FLOAT -> {
asmgen.out(" lda #<$varname | ldy #>$varname| jsr floats.push_float")
}
in SplitWordArrayTypes -> {
throw AssemblyError("can't push address of split-word array ${expr.position}")
}
in IterableDatatypes -> {
asmgen.out(" lda #<$varname | sta P8ESTACK_LO,x | lda #>$varname | sta P8ESTACK_HI,x | dex")
}
else -> throw AssemblyError("stack push weird variable type $expr")
}
}
private fun translateExpression(expr: PtBinaryExpression) {
// Uses evalstack to evaluate the given expression. THIS IS SLOW AND SHOULD BE AVOIDED!
if(translateSomewhatOptimized(expr.left, expr.operator, expr.right))
return
val leftDt = expr.left.type
val rightDt = expr.right.type
// compare with zero
if(expr.operator in ComparisonOperators) {
if(leftDt in NumericDatatypes && rightDt in NumericDatatypes) {
val rightVal = expr.right.asConstInteger()
if(rightVal==0)
return translateComparisonWithZero(expr.left, leftDt, expr.operator)
}
}
if(leftDt==DataType.STR && rightDt==DataType.STR && expr.operator in ComparisonOperators)
return translateCompareStrings(expr.left, expr.operator, expr.right)
if((leftDt in ByteDatatypes && rightDt !in ByteDatatypes)
|| (leftDt in WordDatatypes && rightDt !in WordDatatypes))
throw AssemblyError("binary operator ${expr.operator} left/right dt not identical")
// the general, non-optimized cases
// TODO optimize more cases.... (or one day just don't use the evalstack at all anymore)
translateExpressionInternal(expr.left)
translateExpressionInternal(expr.right)
when (leftDt) {
in ByteDatatypes -> translateBinaryOperatorBytes(expr.operator, leftDt)
in WordDatatypes -> translateBinaryOperatorWords(expr.operator, leftDt)
DataType.FLOAT -> translateBinaryOperatorFloats(expr.operator)
else -> throw AssemblyError("non-numerical datatype")
}
}
private fun translateSomewhatOptimized(left: PtExpression, operator: String, right: PtExpression): Boolean {
val leftDt = left.type
val rightDt = right.type
when(operator) {
"+" -> {
if(leftDt in IntegerDatatypes && rightDt in IntegerDatatypes) {
val leftVal = left.asConstInteger()
val rightVal = right.asConstInteger()
if (leftVal!=null && leftVal in -4..4) {
translateExpressionInternal(right)
if(rightDt in ByteDatatypes) {
val incdec = if(leftVal<0) "dec" else "inc"
repeat(leftVal.absoluteValue) {
asmgen.out(" $incdec P8ESTACK_LO+1,x")
}
} else {
// word
if(leftVal<0) {
repeat(leftVal.absoluteValue) {
asmgen.out("""
lda P8ESTACK_LO+1,x
bne +
dec P8ESTACK_HI+1,x
+ dec P8ESTACK_LO+1,x""")
}
} else {
repeat(leftVal) {
asmgen.out("""
inc P8ESTACK_LO+1,x
bne +
inc P8ESTACK_HI+1,x
+""")
}
}
}
return true
}
else if (rightVal!=null && rightVal in -4..4)
{
translateExpressionInternal(left)
if(leftDt in ByteDatatypes) {
val incdec = if(rightVal<0) "dec" else "inc"
repeat(rightVal.absoluteValue) {
asmgen.out(" $incdec P8ESTACK_LO+1,x")
}
} else {
// word
if(rightVal<0) {
repeat(rightVal.absoluteValue) {
asmgen.out("""
lda P8ESTACK_LO+1,x
bne +
dec P8ESTACK_HI+1,x
+ dec P8ESTACK_LO+1,x""")
}
} else {
repeat(rightVal) {
asmgen.out("""
inc P8ESTACK_LO+1,x
bne +
inc P8ESTACK_HI+1,x
+""")
}
}
}
return true
}
}
}
"-" -> {
if(leftDt in IntegerDatatypes && rightDt in IntegerDatatypes) {
val rightVal = right.asConstInteger()
if (rightVal!=null && rightVal in -4..4)
{
translateExpressionInternal(left)
if(leftDt in ByteDatatypes) {
val incdec = if(rightVal<0) "inc" else "dec"
repeat(rightVal.absoluteValue) {
asmgen.out(" $incdec P8ESTACK_LO+1,x")
}
} else {
// word
if(rightVal>0) {
repeat(rightVal.absoluteValue) {
asmgen.out("""
lda P8ESTACK_LO+1,x
bne +
dec P8ESTACK_HI+1,x
+ dec P8ESTACK_LO+1,x""")
}
} else {
repeat(rightVal) {
asmgen.out("""
inc P8ESTACK_LO+1,x
bne +
inc P8ESTACK_HI+1,x
+""")
}
}
}
return true
}
}
}
">>" -> {
val amount = right.asConstInteger()
if(amount!=null) {
translateExpressionInternal(left)
when (leftDt) {
DataType.UBYTE -> {
if (amount <= 2)
repeat(amount) { asmgen.out(" lsr P8ESTACK_LO+1,x") }
else {
asmgen.out(" lda P8ESTACK_LO+1,x")
repeat(amount) { asmgen.out(" lsr a") }
asmgen.out(" sta P8ESTACK_LO+1,x")
}
}
DataType.BYTE -> {
if (amount <= 2)
repeat(amount) { asmgen.out(" lda P8ESTACK_LO+1,x | asl a | ror P8ESTACK_LO+1,x") }
else {
asmgen.out(" lda P8ESTACK_LO+1,x | sta P8ZP_SCRATCH_B1")
repeat(amount) { asmgen.out(" asl a | ror P8ZP_SCRATCH_B1 | lda P8ZP_SCRATCH_B1") }
asmgen.out(" sta P8ESTACK_LO+1,x")
}
}
DataType.UWORD -> {
if(amount>=16) {
if(asmgen.isTargetCpu(CpuType.CPU65c02))
asmgen.out(" stz P8ESTACK_LO+1,x | stz P8ESTACK_HI+1,x")
else
asmgen.out(" lda #0 | sta P8ESTACK_LO+1,x | sta P8ESTACK_HI+1,x")
return true
}
var amountLeft = amount
while (amountLeft >= 7) {
asmgen.out(" jsr math.shift_right_uw_7")
amountLeft -= 7
}
if (amountLeft in 0..2)
repeat(amountLeft) { asmgen.out(" lsr P8ESTACK_HI+1,x | ror P8ESTACK_LO+1,x") }
else
asmgen.out(" jsr math.shift_right_uw_$amountLeft")
}
DataType.WORD -> {
if(amount>=16) {
asmgen.out("""
lda P8ESTACK_HI+1,x
bmi +
lda #0
sta P8ESTACK_LO+1,x
sta P8ESTACK_HI+1,x
beq ++
+ lda #255
sta P8ESTACK_LO+1,x
sta P8ESTACK_HI+1,x
+""")
return true
}
var amountLeft = amount
while (amountLeft >= 7) {
asmgen.out(" jsr math.shift_right_w_7")
amountLeft -= 7
}
if (amountLeft in 0..2)
repeat(amountLeft) { asmgen.out(" lda P8ESTACK_HI+1,x | asl a | ror P8ESTACK_HI+1,x | ror P8ESTACK_LO+1,x") }
else
asmgen.out(" jsr math.shift_right_w_$amountLeft")
}
else -> throw AssemblyError("weird type")
}
return true
}
}
"<<" -> {
val amount = right.asConstInteger()
if(amount!=null) {
translateExpressionInternal(left)
if (leftDt in ByteDatatypes) {
if (amount <= 2)
repeat(amount) { asmgen.out(" asl P8ESTACK_LO+1,x") }
else {
asmgen.out(" lda P8ESTACK_LO+1,x")
repeat(amount) { asmgen.out(" asl a") }
asmgen.out(" sta P8ESTACK_LO+1,x")
}
} else {
var amountLeft = amount
while (amountLeft >= 7) {
asmgen.out(" jsr math.shift_left_w_7")
amountLeft -= 7
}
if (amountLeft in 0..2)
repeat(amountLeft) { asmgen.out(" asl P8ESTACK_LO+1,x | rol P8ESTACK_HI+1,x") }
else
asmgen.out(" jsr math.shift_left_w_$amountLeft")
}
return true
}
}
"*" -> {
if(leftDt in IntegerDatatypes && rightDt in IntegerDatatypes) {
val leftVar = left as? PtIdentifier
val rightVar = right as? PtIdentifier
if(leftVar!=null && rightVar!=null && leftVar==rightVar) {
translateSquared(leftVar, leftDt)
return true
}
}
val value = right as? PtNumber
if(value!=null) {
if(rightDt in IntegerDatatypes) {
val amount = value.number.toInt()
if(amount==2) {
// optimize x*2 common case
translateExpressionInternal(left)
if(leftDt in ByteDatatypes) {
asmgen.out(" asl P8ESTACK_LO+1,x")
} else {
asmgen.out(" asl P8ESTACK_LO+1,x | rol P8ESTACK_HI+1,x")
}
return true
}
when(rightDt) {
DataType.UBYTE -> {
if(amount in asmgen.optimizedByteMultiplications) {
translateExpressionInternal(left)
asmgen.out(" jsr math.stack_mul_byte_$amount")
return true
}
}
DataType.BYTE -> {
if(amount in asmgen.optimizedByteMultiplications) {
translateExpressionInternal(left)
asmgen.out(" jsr math.stack_mul_byte_$amount")
return true
}
if(amount.absoluteValue in asmgen.optimizedByteMultiplications) {
translateExpressionInternal(left)
asmgen.out(" jsr prog8_lib.neg_b | jsr math.stack_mul_byte_${amount.absoluteValue}")
return true
}
}
DataType.UWORD -> {
if(amount in asmgen.optimizedWordMultiplications) {
translateExpressionInternal(left)
asmgen.out(" jsr math.stack_mul_word_$amount")
return true
}
}
DataType.WORD -> {
if(amount in asmgen.optimizedWordMultiplications) {
translateExpressionInternal(left)
asmgen.out(" jsr math.stack_mul_word_$amount")
return true
}
if(amount.absoluteValue in asmgen.optimizedWordMultiplications) {
translateExpressionInternal(left)
asmgen.out(" jsr prog8_lib.neg_w | jsr math.stack_mul_word_${amount.absoluteValue}")
return true
}
}
else -> {}
}
}
}
}
"/" -> {
if(leftDt in IntegerDatatypes && rightDt in IntegerDatatypes) {
val rightVal = right.asConstInteger()
if(rightVal!=null && rightVal==2) {
translateExpressionInternal(left)
when (leftDt) {
DataType.UBYTE -> {
asmgen.out(" lsr P8ESTACK_LO+1,x")
}
DataType.UWORD -> {
asmgen.out(" lsr P8ESTACK_HI+1,x | ror P8ESTACK_LO+1,x")
}
DataType.BYTE -> {
// signed divide using shift needs adjusting of negative value to get correct rounding towards zero
asmgen.out("""
lda P8ESTACK_LO+1,x
bpl +
inc P8ESTACK_LO+1,x
lda P8ESTACK_LO+1,x
+ asl a
ror P8ESTACK_LO+1,x""")
}
DataType.WORD -> {
// signed divide using shift needs adjusting of negative value to get correct rounding towards zero
asmgen.out("""
lda P8ESTACK_HI+1,x
bpl ++
inc P8ESTACK_LO+1,x
bne +
inc P8ESTACK_HI+1,x
+ lda P8ESTACK_HI+1,x
+ asl a
ror P8ESTACK_HI+1,x
ror P8ESTACK_LO+1,x""")
}
else -> throw AssemblyError("weird dt")
}
return true
}
}
}
}
return false
}
private fun translateComparisonWithZero(expr: PtExpression, dt: DataType, operator: String) {
if(expr.isSimple()) {
if(operator=="!=") {
when (dt) {
in ByteDatatypes -> {
asmgen.assignExpressionToRegister(expr, RegisterOrPair.A, dt == DataType.BYTE)
asmgen.out("""
beq +
lda #1
+ sta P8ESTACK_LO,x
dex""")
return
}
in WordDatatypes -> {
asmgen.assignExpressionToRegister(expr, RegisterOrPair.AY, dt == DataType.WORD)
asmgen.out("""
sty P8ZP_SCRATCH_B1
ora P8ZP_SCRATCH_B1
beq +
lda #1
+ sta P8ESTACK_LO,x
dex""")
return
}
DataType.FLOAT -> {
asmgen.assignExpressionToRegister(expr, RegisterOrPair.FAC1, true)
asmgen.out("""
jsr floats.SIGN
sta P8ESTACK_LO,x
dex""")
return
}
else -> {}
}
}
/* operator == is not worth it to special case, the code is mostly larger */
}
translateExpressionInternal(expr)
when(operator) {
"==" -> {
when(dt) {
DataType.UBYTE, DataType.BYTE -> asmgen.out(" jsr prog8_lib.equalzero_b")
DataType.UWORD, DataType.WORD -> asmgen.out(" jsr prog8_lib.equalzero_w")
DataType.FLOAT -> asmgen.out(" jsr floats.equal_zero")
else -> throw AssemblyError("wrong dt")
}
}
"!=" -> {
when(dt) {
DataType.UBYTE, DataType.BYTE -> asmgen.out(" jsr prog8_lib.notequalzero_b")
DataType.UWORD, DataType.WORD -> asmgen.out(" jsr prog8_lib.notequalzero_w")
DataType.FLOAT -> asmgen.out(" jsr floats.notequal_zero")
else -> throw AssemblyError("wrong dt")
}
}
"<" -> {
if(dt==DataType.UBYTE || dt==DataType.UWORD)
return translateExpressionInternal(PtNumber.fromBoolean(false, expr.position))
when(dt) {
DataType.BYTE -> asmgen.out(" jsr prog8_lib.lesszero_b")
DataType.WORD -> asmgen.out(" jsr prog8_lib.lesszero_w")
DataType.FLOAT -> asmgen.out(" jsr floats.less_zero")
else -> throw AssemblyError("wrong dt")
}
}
">" -> {
when(dt) {
DataType.UBYTE -> asmgen.out(" jsr prog8_lib.greaterzero_ub")
DataType.BYTE -> asmgen.out(" jsr prog8_lib.greaterzero_sb")
DataType.UWORD -> asmgen.out(" jsr prog8_lib.greaterzero_uw")
DataType.WORD -> asmgen.out(" jsr prog8_lib.greaterzero_sw")
DataType.FLOAT -> asmgen.out(" jsr floats.greater_zero")
else -> throw AssemblyError("wrong dt")
}
}
"<=" -> {
when(dt) {
DataType.UBYTE -> asmgen.out(" jsr prog8_lib.equalzero_b")
DataType.BYTE -> asmgen.out(" jsr prog8_lib.lessequalzero_sb")
DataType.UWORD -> asmgen.out(" jsr prog8_lib.equalzero_w")
DataType.WORD -> asmgen.out(" jsr prog8_lib.lessequalzero_sw")
DataType.FLOAT -> asmgen.out(" jsr floats.lessequal_zero")
else -> throw AssemblyError("wrong dt")
}
}
">=" -> {
if(dt==DataType.UBYTE || dt==DataType.UWORD)
return translateExpressionInternal(PtNumber.fromBoolean(true, expr.position))
when(dt) {
DataType.BYTE -> asmgen.out(" jsr prog8_lib.greaterequalzero_sb")
DataType.WORD -> asmgen.out(" jsr prog8_lib.greaterequalzero_sw")
DataType.FLOAT -> asmgen.out(" jsr floats.greaterequal_zero")
else -> throw AssemblyError("wrong dt")
}
}
else -> throw AssemblyError("invalid comparison operator")
}
}
private fun translateSquared(variable: PtIdentifier, dt: DataType) {
val asmVar = asmgen.asmVariableName(variable)
when(dt) {
DataType.BYTE, DataType.UBYTE -> {
asmgen.out(" lda $asmVar")
asmgen.signExtendAYlsb(dt)
asmgen.out(" jsr math.square")
}
DataType.UWORD, DataType.WORD -> {
asmgen.out(" lda $asmVar | ldy $asmVar+1 | jsr math.square")
}
else -> throw AssemblyError("require integer dt for square")
}
asmgen.out(" sta P8ESTACK_LO,x | tya | sta P8ESTACK_HI,x | dex")
}
private fun translateExpression(expr: PtPrefix) {
translateExpressionInternal(expr.value)
when(expr.operator) {
"+" -> {}
"-" -> {
when(expr.type) {
in ByteDatatypes -> asmgen.out(" jsr prog8_lib.neg_b")
in WordDatatypes -> asmgen.out(" jsr prog8_lib.neg_w")
DataType.FLOAT -> asmgen.out(" jsr floats.neg_f")
else -> throw AssemblyError("weird type")
}
}
"~" -> {
when(expr.type) {
in ByteDatatypes ->
asmgen.out("""
lda P8ESTACK_LO+1,x
eor #255
sta P8ESTACK_LO+1,x
""")
in WordDatatypes -> asmgen.out(" jsr prog8_lib.inv_word")
else -> throw AssemblyError("weird type")
}
}
else -> throw AssemblyError("invalid prefix operator ${expr.operator}")
}
}
private fun translateExpression(arrayExpr: PtArrayIndexer) {
val elementDt = arrayExpr.type
val arrayVarName = asmgen.asmVariableName(arrayExpr.variable)
if(arrayExpr.variable.type==DataType.UWORD) {
// indexing a pointer var instead of a real array or string
if(elementDt !in ByteDatatypes)
throw AssemblyError("non-array var indexing requires bytes dt")
if(arrayExpr.index.type != DataType.UBYTE)
throw AssemblyError("non-array var indexing requires bytes index")
asmgen.loadScaledArrayIndexIntoRegister(arrayExpr, elementDt, CpuRegister.Y)
if(asmgen.isZpVar(arrayExpr.variable)) {
asmgen.out(" lda ($arrayVarName),y")
} else {
asmgen.out(" lda $arrayVarName | sta P8ZP_SCRATCH_W1 | lda $arrayVarName+1 | sta P8ZP_SCRATCH_W1+1")
asmgen.out(" lda (P8ZP_SCRATCH_W1),y")
}
asmgen.out(" sta P8ESTACK_LO,x | dex")
return
}
if(arrayExpr.splitWords)
TODO("split words expression ${arrayExpr.position}")
val constIndexNum = arrayExpr.index.asConstInteger()
if(constIndexNum!=null) {
val indexValue = constIndexNum * program.memsizer.memorySize(elementDt)
when(elementDt) {
in ByteDatatypes -> {
asmgen.out(" lda $arrayVarName+$indexValue | sta P8ESTACK_LO,x | dex")
}
in WordDatatypes -> {
asmgen.out(" lda $arrayVarName+$indexValue | sta P8ESTACK_LO,x | lda $arrayVarName+$indexValue+1 | sta P8ESTACK_HI,x | dex")
}
DataType.FLOAT -> {
asmgen.out(" lda #<($arrayVarName+$indexValue) | ldy #>($arrayVarName+$indexValue) | jsr floats.push_float")
}
else -> throw AssemblyError("weird element type")
}
} else {
when(elementDt) {
in ByteDatatypes -> {
asmgen.loadScaledArrayIndexIntoRegister(arrayExpr, elementDt, CpuRegister.Y)
asmgen.out(" lda $arrayVarName,y | sta P8ESTACK_LO,x | dex")
}
in WordDatatypes -> {
asmgen.loadScaledArrayIndexIntoRegister(arrayExpr, elementDt, CpuRegister.Y)
asmgen.out(" lda $arrayVarName,y | sta P8ESTACK_LO,x | lda $arrayVarName+1,y | sta P8ESTACK_HI,x | dex")
}
DataType.FLOAT -> {
asmgen.loadScaledArrayIndexIntoRegister(arrayExpr, elementDt, CpuRegister.A)
asmgen.out("""
ldy #>$arrayVarName
clc
adc #<$arrayVarName
bcc +
iny
+ jsr floats.push_float""")
}
else -> throw AssemblyError("weird dt")
}
}
}
private fun translateBinaryOperatorBytes(operator: String, types: DataType) {
when(operator) {
"*" -> asmgen.out(" jsr prog8_lib.mul_byte") // the optimized routines should have been checked earlier
"/" -> asmgen.out(if(types==DataType.UBYTE) " jsr prog8_lib.idiv_ub" else " jsr prog8_lib.idiv_b")
"%" -> {
if(types==DataType.BYTE)
throw AssemblyError("remainder of signed integers is not properly defined/implemented, use unsigned instead")
asmgen.out(" jsr prog8_lib.remainder_ub")
}
"+" -> asmgen.out("""
lda P8ESTACK_LO+2,x
clc
adc P8ESTACK_LO+1,x
inx
sta P8ESTACK_LO+1,x
""")
"-" -> asmgen.out("""
lda P8ESTACK_LO+2,x
sec
sbc P8ESTACK_LO+1,x
inx
sta P8ESTACK_LO+1,x
""")
"<<" -> asmgen.out(" jsr prog8_lib.shiftleft_b")
">>" -> asmgen.out(" jsr prog8_lib.shiftright_b")
"<" -> asmgen.out(if(types==DataType.UBYTE) " jsr prog8_lib.less_ub" else " jsr prog8_lib.less_b")
">" -> asmgen.out(if(types==DataType.UBYTE) " jsr prog8_lib.greater_ub" else " jsr prog8_lib.greater_b")
"<=" -> asmgen.out(if(types==DataType.UBYTE) " jsr prog8_lib.lesseq_ub" else " jsr prog8_lib.lesseq_b")
">=" -> asmgen.out(if(types==DataType.UBYTE) " jsr prog8_lib.greatereq_ub" else " jsr prog8_lib.greatereq_b")
"==" -> asmgen.out(" jsr prog8_lib.equal_b")
"!=" -> asmgen.out(" jsr prog8_lib.notequal_b")
"&" -> asmgen.out(" jsr prog8_lib.bitand_b")
"^" -> asmgen.out(" jsr prog8_lib.bitxor_b")
"|" -> asmgen.out(" jsr prog8_lib.bitor_b")
else -> throw AssemblyError("invalid operator $operator")
}
}
private fun translateBinaryOperatorWords(operator: String, dt: DataType) {
when(operator) {
"*" -> asmgen.out(" jsr prog8_lib.mul_word")
"/" -> asmgen.out(if(dt==DataType.UWORD) " jsr prog8_lib.idiv_uw" else " jsr prog8_lib.idiv_w")
"%" -> {
if(dt==DataType.WORD)
throw AssemblyError("remainder of signed integers is not properly defined/implemented, use unsigned instead")
asmgen.out(" jsr prog8_lib.remainder_uw")
}
"+" -> asmgen.out(" jsr prog8_lib.add_w")
"-" -> asmgen.out(" jsr prog8_lib.sub_w")
"<<" -> asmgen.out(" jsr math.shift_left_w")
">>" -> {
if(dt==DataType.UWORD)
asmgen.out(" jsr math.shift_right_uw")
else
asmgen.out(" jsr math.shift_right_w")
}
"<" -> asmgen.out(if(dt==DataType.UWORD) " jsr prog8_lib.less_uw" else " jsr prog8_lib.less_w")
">" -> asmgen.out(if(dt==DataType.UWORD) " jsr prog8_lib.greater_uw" else " jsr prog8_lib.greater_w")
"<=" -> asmgen.out(if(dt==DataType.UWORD) " jsr prog8_lib.lesseq_uw" else " jsr prog8_lib.lesseq_w")
">=" -> asmgen.out(if(dt==DataType.UWORD) " jsr prog8_lib.greatereq_uw" else " jsr prog8_lib.greatereq_w")
"==" -> asmgen.out(" jsr prog8_lib.equal_w")
"!=" -> asmgen.out(" jsr prog8_lib.notequal_w")
"&" -> asmgen.out(" jsr prog8_lib.bitand_w")
"^" -> asmgen.out(" jsr prog8_lib.bitxor_w")
"|" -> asmgen.out(" jsr prog8_lib.bitor_w")
else -> throw AssemblyError("invalid operator $operator")
}
}
private fun translateBinaryOperatorFloats(operator: String) {
when(operator) {
"*" -> asmgen.out(" jsr floats.mul_f")
"/" -> asmgen.out(" jsr floats.div_f")
"+" -> asmgen.out(" jsr floats.add_f")
"-" -> asmgen.out(" jsr floats.sub_f")
"<" -> asmgen.out(" jsr floats.less_f")
">" -> asmgen.out(" jsr floats.greater_f")
"<=" -> asmgen.out(" jsr floats.lesseq_f")
">=" -> asmgen.out(" jsr floats.greatereq_f")
"==" -> asmgen.out(" jsr floats.equal_f")
"!=" -> asmgen.out(" jsr floats.notequal_f")
"%", "<<", ">>", "&", "^", "|" -> throw AssemblyError("requires integer datatype")
else -> throw AssemblyError("invalid operator $operator")
}
}
private fun translateCompareStrings(s1: PtExpression, operator: String, s2: PtExpression) {
asmgen.assignExpressionToVariable(s1, "prog8_lib.strcmp_expression._arg_s1", DataType.UWORD)
asmgen.assignExpressionToVariable(s2, "prog8_lib.strcmp_expression._arg_s2", DataType.UWORD)
asmgen.out(" jsr prog8_lib.strcmp_expression") // result of compare is in A
compareStringsProcessResultInA(operator)
}
private fun compareStringsProcessResultInA(operator: String) {
when(operator) {
"==" -> asmgen.out(" and #1 | eor #1 | sta P8ESTACK_LO,x")
"!=" -> asmgen.out(" and #1 | sta P8ESTACK_LO,x")
"<=" -> asmgen.out("""
bpl +
lda #1
bne ++
+ lda #0
+ sta P8ESTACK_LO,x""")
">=" -> asmgen.out("""
bmi +
lda #1
bne ++
+ lda #0
+ sta P8ESTACK_LO,x""")
"<" -> asmgen.out("""
bmi +
lda #0
beq ++
+ lda #1
+ sta P8ESTACK_LO,x""")
">" -> asmgen.out("""
bpl +
lda #0
beq ++
+ lda #1
+ sta P8ESTACK_LO,x""")
}
asmgen.out(" dex")
}
}

9
codeGenCpu6502/src/prog8/codegen/cpu6502/Extensions.kt
View File

@ -6,15 +6,6 @@ import prog8.code.ast.PtSub
import prog8.code.core.*
internal fun IPtSubroutine.regXasResult(): Boolean =
(this is PtAsmSub) && this.returns.any { it.first.registerOrPair in arrayOf(RegisterOrPair.X, RegisterOrPair.AX, RegisterOrPair.XY) }
internal fun IPtSubroutine.shouldSaveX(): Boolean =
this.regXasResult() || (this is PtAsmSub && (CpuRegister.X in this.clobbers || regXasParam()))
internal fun PtAsmSub.regXasParam(): Boolean =
parameters.any { it.first.registerOrPair in arrayOf(RegisterOrPair.X, RegisterOrPair.AX, RegisterOrPair.XY) }
internal class KeepAresult(val saveOnEntry: Boolean, val saveOnReturn: Boolean)
internal fun PtAsmSub.shouldKeepA(): KeepAresult {

32
codeGenCpu6502/src/prog8/codegen/cpu6502/FunctionCallAsmGen.kt
View File

@ -11,42 +11,10 @@ import prog8.codegen.cpu6502.assignment.TargetStorageKind
internal class FunctionCallAsmGen(private val program: PtProgram, private val asmgen: AsmGen6502Internal) {
internal fun translateFunctionCallStatement(stmt: PtFunctionCall) {
saveXbeforeCall(stmt)
translateFunctionCall(stmt)
restoreXafterCall(stmt)
// just ignore any result values from the function call.
}
internal fun saveXbeforeCall(stmt: PtFunctionCall) {
val symbol = asmgen.symbolTable.lookup(stmt.name)
val sub = symbol!!.astNode as IPtSubroutine
if(sub.shouldSaveX()) {
if(sub is PtAsmSub) {
val regSaveOnStack = sub.address == null // rom-routines don't require registers to be saved on stack, normal subroutines do because they can contain nested calls
if (regSaveOnStack)
asmgen.saveRegisterStack(CpuRegister.X, sub.shouldKeepA().saveOnEntry)
else
asmgen.saveRegisterLocal(CpuRegister.X, stmt.definingISub()!!)
} else
asmgen.saveRegisterLocal(CpuRegister.X, stmt.definingISub()!!)
}
}
internal fun restoreXafterCall(stmt: PtFunctionCall) {
val symbol = asmgen.symbolTable.lookup(stmt.name)
val sub = symbol!!.astNode as IPtSubroutine
if(sub.shouldSaveX()) {
if(sub is PtAsmSub) {
val regSaveOnStack = sub.address == null // rom-routines don't require registers to be saved on stack, normal subroutines do because they can contain nested calls
if (regSaveOnStack)
asmgen.restoreRegisterStack(CpuRegister.X, sub.shouldKeepA().saveOnReturn)
else
asmgen.restoreRegisterLocal(CpuRegister.X)
} else
asmgen.restoreRegisterLocal(CpuRegister.X)
}
}
internal fun optimizeIntArgsViaRegisters(sub: PtSub) =
(sub.parameters.size==1 && sub.parameters[0].type in IntegerDatatypes)
|| (sub.parameters.size==2 && sub.parameters[0].type in ByteDatatypes && sub.parameters[1].type in ByteDatatypes)

5
codeGenCpu6502/src/prog8/codegen/cpu6502/PostIncrDecrAsmGen.kt
View File

@ -13,7 +13,6 @@ internal class PostIncrDecrAsmGen(private val program: PtProgram, private val as
val targetIdent = stmt.target.identifier
val targetMemory = stmt.target.memory
val targetArrayIdx = stmt.target.array
val scope = stmt.definingISub()
when {
targetIdent!=null -> {
val what = asmgen.asmVariableName(targetIdent)
@ -76,7 +75,6 @@ internal class PostIncrDecrAsmGen(private val program: PtProgram, private val as
dec ${asmArrayvarname}_msb+$constIndex
+ dec ${asmArrayvarname}_lsb+$constIndex""")
} else {
asmgen.saveRegisterLocal(CpuRegister.X, scope!!)
asmgen.loadScaledArrayIndexIntoRegister(targetArrayIdx, elementDt, CpuRegister.X)
if(incr)
asmgen.out(" inc ${asmArrayvarname}_lsb,x | bne + | inc ${asmArrayvarname}_msb,x |+")
@ -86,7 +84,6 @@ internal class PostIncrDecrAsmGen(private val program: PtProgram, private val as
bne +
dec ${asmArrayvarname}_msb,x
+ dec ${asmArrayvarname}_lsb,x""")
asmgen.restoreRegisterLocal(CpuRegister.X)
}
return
}
@ -113,7 +110,6 @@ internal class PostIncrDecrAsmGen(private val program: PtProgram, private val as
}
else
{
asmgen.saveRegisterLocal(CpuRegister.X, scope!!)
asmgen.loadScaledArrayIndexIntoRegister(targetArrayIdx, elementDt, CpuRegister.X)
when(elementDt) {
in ByteDatatypes -> {
@ -141,7 +137,6 @@ internal class PostIncrDecrAsmGen(private val program: PtProgram, private val as
}
else -> throw AssemblyError("weird array elt dt")
}
asmgen.restoreRegisterLocal(CpuRegister.X)
}
}
}

8
codeGenCpu6502/src/prog8/codegen/cpu6502/ProgramAndVarsGen.kt
View File

@ -75,8 +75,6 @@ internal class ProgramAndVarsGen(
asmgen.out("P8ZP_SCRATCH_W1 = ${zp.SCRATCH_W1} ; word")
asmgen.out("P8ZP_SCRATCH_W2 = ${zp.SCRATCH_W2} ; word")
asmgen.out(".weak") // hack to allow user to override the following two with command line redefinition (however, just use '-esa' command line option instead!)
asmgen.out("P8ESTACK_LO = ${compTarget.machine.ESTACK_LO.toHex()}")
asmgen.out("P8ESTACK_HI = ${compTarget.machine.ESTACK_HI.toHex()}")
asmgen.out(".endweak")
if(options.symbolDefs.isNotEmpty()) {
@ -371,12 +369,6 @@ internal class ProgramAndVarsGen(
else -> throw AssemblyError("weird dt for extravar $dt")
}
}
if(asmGenInfo.usedRegsaveA) // will probably never occur
asmgen.out("prog8_regsaveA .byte ?")
if(asmGenInfo.usedRegsaveX)
asmgen.out("prog8_regsaveX .byte ?")
if(asmGenInfo.usedRegsaveY)
asmgen.out("prog8_regsaveY .byte ?")
if(asmGenInfo.usedFloatEvalResultVar1)
asmgen.out("$subroutineFloatEvalResultVar1 .fill ${options.compTarget.machine.FLOAT_MEM_SIZE}")
if(asmGenInfo.usedFloatEvalResultVar2)

265
codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AnyExprAsmGen.kt Normal file
View File

@ -0,0 +1,265 @@
package prog8.codegen.cpu6502.assignment
import prog8.code.ast.PtBinaryExpression
import prog8.code.core.*
import prog8.codegen.cpu6502.AsmGen6502Internal
//
// This contains codegen for stack-based evaluation of binary expressions.
// It uses the CPU stack so depth is limited.
// It is called "as a last resort" if the optimized codegen path is unable
// to come up with a special case of the expression.
//
internal class AnyExprAsmGen(
private val asmgen: AsmGen6502Internal
) {
fun assignAnyExpressionUsingStack(expr: PtBinaryExpression, assign: AsmAssignment): Boolean {
when(expr.type) {
in ByteDatatypes -> {
if(expr.left.type in ByteDatatypes && expr.right.type in ByteDatatypes)
return assignByteBinExpr(expr, assign)
if (expr.left.type in WordDatatypes && expr.right.type in WordDatatypes) {
require(expr.operator in ComparisonOperators)
TODO("words operands comparison -> byte")
}
if (expr.left.type==DataType.FLOAT && expr.right.type==DataType.FLOAT) {
require(expr.operator in ComparisonOperators)
return assignFloatBinExpr(expr, assign)
}
TODO("weird expr operand types")
}
in WordDatatypes -> {
require(expr.left.type in WordDatatypes && expr.right.type in WordDatatypes) {
"both operands must be words"
}
return assignWordBinExpr(expr)
}
DataType.FLOAT -> {
require(expr.left.type==DataType.FLOAT && expr.right.type==DataType.FLOAT) {
"both operands must be floats"
}
return assignFloatBinExpr(expr, assign)
}
else -> throw AssemblyError("weird expression type in assignment")
}
}
private fun assignWordBinExpr(expr: PtBinaryExpression): Boolean {
when(expr.operator) {
"+" -> {
TODO("word + at ${expr.position}")
}
"-" -> {
TODO("word - at ${expr.position}")
}
"*" -> {
TODO("word * at ${expr.position}")
}
"/" -> {
TODO("word / at ${expr.position}")
}
"<<" -> {
TODO("word << at ${expr.position}")
}
">>" -> {
TODO("word >> at ${expr.position}")
}
"%" -> {
TODO("word % at ${expr.position}")
}
"&", "and" -> {
TODO("word and at ${expr.position}")
}
"|", "or" -> {
TODO("word or at ${expr.position}")
}
"^", "xor" -> {
TODO("word xor at ${expr.position}")
}
"==" -> {
TODO("word == at ${expr.position}")
}
"!=" -> {
TODO("word != at ${expr.position}")
}
"<" -> {
TODO("word < at ${expr.position}")
}
"<=" -> {
TODO("word <= at ${expr.position}")
}
">" -> {
TODO("word > at ${expr.position}")
}
">=" -> {
TODO("word >= at ${expr.position}")
}
else -> return false
}
}
private fun assignByteBinExpr(expr: PtBinaryExpression, assign: AsmAssignment): Boolean {
when(expr.operator) {
"+" -> {
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.A, false)
asmgen.out(" pha")
asmgen.assignExpressionToVariable(expr.right, "P8ZP_SCRATCH_B1", DataType.UBYTE)
asmgen.out(" pla | clc | adc P8ZP_SCRATCH_B1")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
"-" -> {
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.A, false)
asmgen.out(" pha")
asmgen.assignExpressionToVariable(expr.right, "P8ZP_SCRATCH_B1", DataType.UBYTE)
asmgen.out(" pla | sec | sbc P8ZP_SCRATCH_B1")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
"*" -> {
TODO("byte * at ${expr.position}")
}
"/" -> {
TODO("byte / at ${expr.position}")
}
"<<" -> {
TODO("byte << at ${expr.position}")
}
">>" -> {
TODO("byte >> at ${expr.position}")
}
"%" -> {
TODO("byte % at ${expr.position}")
}
"&", "and" -> {
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.A, false)
asmgen.out(" pha")
asmgen.assignExpressionToVariable(expr.right, "P8ZP_SCRATCH_B1", DataType.UBYTE)
asmgen.out(" pla | and P8ZP_SCRATCH_B1")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
"|", "or" -> {
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.A, false)
asmgen.out(" pha")
asmgen.assignExpressionToVariable(expr.right, "P8ZP_SCRATCH_B1", DataType.UBYTE)
asmgen.out(" pla | ora P8ZP_SCRATCH_B1")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
"^", "xor" -> {
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.A, false)
asmgen.out(" pha")
asmgen.assignExpressionToVariable(expr.right, "P8ZP_SCRATCH_B1", DataType.UBYTE)
asmgen.out(" pla | eor P8ZP_SCRATCH_B1")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
"==" -> {
TODO("byte == at ${expr.position}")
}
"!=" -> {
TODO("byte != at ${expr.position}")
}
"<" -> {
TODO("byte < at ${expr.position}")
}
"<=" -> {
TODO("byte <= at ${expr.position}")
}
">" -> {
TODO("byte > at ${expr.position}")
}
">=" -> {
TODO("byte >= at ${expr.position}")
}
else -> return false
}
}
private fun assignFloatBinExpr(expr: PtBinaryExpression, assign: AsmAssignment): Boolean {
when(expr.operator) {
"+" -> {
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.FAC1, true)
if(!expr.right.isSimple()) asmgen.pushFAC1()
asmgen.assignExpressionToRegister(expr.right, RegisterOrPair.FAC2, true)
if(!expr.right.isSimple()) asmgen.popFAC1()
asmgen.out(" jsr floats.FADDT")
asmgen.assignRegister(RegisterOrPair.FAC1, assign.target)
return true
}
"-" -> {
asmgen.assignExpressionToRegister(expr.right, RegisterOrPair.FAC1, true)
if(!expr.left.isSimple()) asmgen.pushFAC1()
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.FAC2, true)
if(!expr.left.isSimple()) asmgen.popFAC1()
asmgen.out(" jsr floats.FSUBT")
asmgen.assignRegister(RegisterOrPair.FAC1, assign.target)
return true
}
"*" -> {
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.FAC1, true)
if(!expr.right.isSimple()) asmgen.pushFAC1()
asmgen.assignExpressionToRegister(expr.right, RegisterOrPair.FAC2, true)
if(!expr.right.isSimple()) asmgen.popFAC1()
asmgen.out(" jsr floats.FMULTT")
asmgen.assignRegister(RegisterOrPair.FAC1, assign.target)
return true
}
"/" -> {
asmgen.assignExpressionToRegister(expr.right, RegisterOrPair.FAC1, true)
if(!expr.left.isSimple()) asmgen.pushFAC1()
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.FAC2, true)
if(!expr.left.isSimple()) asmgen.popFAC1()
asmgen.out(" jsr floats.FDIVT")
asmgen.assignRegister(RegisterOrPair.FAC1, assign.target)
return true
}
"==" -> {
setupFloatComparisonFAC1vsVarAY(expr)
asmgen.out(" jsr floats.var_fac1_equal_f")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
"!=" -> {
setupFloatComparisonFAC1vsVarAY(expr)
asmgen.out(" jsr floats.var_fac1_notequal_f")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
"<" -> {
setupFloatComparisonFAC1vsVarAY(expr)
asmgen.out(" jsr floats.var_fac1_less_f")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
">" -> {
setupFloatComparisonFAC1vsVarAY(expr)
asmgen.out(" jsr floats.var_fac1_greater_f")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
"<=" -> {
setupFloatComparisonFAC1vsVarAY(expr)
asmgen.out(" jsr floats.var_fac1_lesseq_f")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
">=" -> {
setupFloatComparisonFAC1vsVarAY(expr)
asmgen.out(" jsr floats.var_fac1_greatereq_f")
asmgen.assignRegister(RegisterOrPair.A, assign.target)
return true
}
else -> TODO("float expression operator ${expr.operator}")
}
}
private fun setupFloatComparisonFAC1vsVarAY(expr: PtBinaryExpression) {
asmgen.assignExpressionToRegister(expr.left, RegisterOrPair.FAC1, true)
if(!expr.right.isSimple()) asmgen.pushFAC1()
asmgen.assignExpressionToVariable(expr.right, "floats.floats_temp_var", DataType.FLOAT)
if(!expr.right.isSimple()) asmgen.popFAC1()
asmgen.out(" lda #<floats.floats_temp_var | ldy #>floats.floats_temp_var")
}
}

6
codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AsmAssignment.kt
View File

@ -10,8 +10,7 @@ internal enum class TargetStorageKind {
VARIABLE,
ARRAY,
MEMORY,
REGISTER,
STACK
REGISTER
}
internal enum class SourceStorageKind {
@ -20,7 +19,6 @@ internal enum class SourceStorageKind {
ARRAY,
MEMORY,
REGISTER,
STACK, // value is already present on stack
EXPRESSION, // expression in ast-form, still to be evaluated
}
@ -120,7 +118,7 @@ internal class AsmAssignTarget(val kind: TargetStorageKind,
TargetStorageKind.MEMORY -> {
left isSameAs memory!!
}
TargetStorageKind.REGISTER, TargetStorageKind.STACK -> {
TargetStorageKind.REGISTER -> {
false
}
}

1323
codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AssignmentAsmGen.kt
View File

File diff suppressed because it is too large Load Diff

172
codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AugmentableAssignmentAsmGen.kt
View File

@ -81,7 +81,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
inplaceModification_byte_value_to_variable(target.asmVarname, target.datatype, operator, value.expression!!)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
}
in WordDatatypes -> {
@ -100,25 +99,47 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
inplaceModification_word_value_to_variable(target.asmVarname, target.datatype, operator, value.expression!!)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
}
DataType.FLOAT -> {
when(value.kind) {
SourceStorageKind.LITERALNUMBER -> inplaceModification_float_litval_to_variable(target.asmVarname, operator, value.number!!.number, target.scope!!)
SourceStorageKind.VARIABLE -> inplaceModification_float_variable_to_variable(target.asmVarname, operator, value.asmVarname, target.scope!!)
SourceStorageKind.REGISTER -> inplaceModification_float_variable_to_variable(target.asmVarname, operator, regName(value), target.scope!!)
SourceStorageKind.LITERALNUMBER -> inplaceModification_float_litval_to_variable(
target.asmVarname,
operator,
value.number!!.number
)
SourceStorageKind.VARIABLE -> inplaceModification_float_variable_to_variable(
target.asmVarname,
operator,
value.asmVarname
)
SourceStorageKind.REGISTER -> inplaceModification_float_variable_to_variable(
target.asmVarname,
operator,
regName(value)
)
SourceStorageKind.MEMORY -> TODO("memread into float")
SourceStorageKind.ARRAY -> inplaceModification_float_value_to_variable(target.asmVarname, operator, value.array!!, target.scope!!)
SourceStorageKind.ARRAY -> inplaceModification_float_value_to_variable(
target.asmVarname,
operator,
value.array!!
)
SourceStorageKind.EXPRESSION -> {
if(value.expression is PtTypeCast) {
if (tryInplaceModifyWithRemovedRedundantCast(value.expression, target, operator)) return
inplaceModification_float_value_to_variable(target.asmVarname, operator, value.expression, target.scope!!)
inplaceModification_float_value_to_variable(
target.asmVarname,
operator,
value.expression
)
} else {
inplaceModification_float_value_to_variable(target.asmVarname, operator, value.expression!!, target.scope!!)
inplaceModification_float_value_to_variable(
target.asmVarname,
operator,
value.expression!!
)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
}
else -> throw AssemblyError("weird type to do in-place modification on ${target.datatype}")
@ -143,7 +164,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
inplaceModification_byte_value_to_variable(addr.toHex(), DataType.UBYTE, operator, value.expression!!)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
}
is PtIdentifier -> {
@ -162,13 +182,13 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
inplaceModification_byte_value_to_pointer(pointer, operator, value.expression!!)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
}
else -> {
// TODO use some other evaluation here; don't use the estack to transfer the address to read/write from
asmgen.assignExpressionTo(memory.address, AsmAssignTarget(TargetStorageKind.STACK, asmgen, DataType.UWORD, memory.definingISub(), target.position))
asmgen.out(" jsr prog8_lib.read_byte_from_address_on_stack | sta P8ZP_SCRATCH_B1")
asmgen.assignExpressionTo(memory.address, AsmAssignTarget(TargetStorageKind.REGISTER, asmgen, DataType.UWORD, memory.definingISub(), target.position, register = RegisterOrPair.AY))
asmgen.saveRegisterStack(CpuRegister.A, true)
asmgen.saveRegisterStack(CpuRegister.Y, false)
asmgen.out(" jsr prog8_lib.read_byte_from_address_in_AY | sta P8ZP_SCRATCH_B1")
when(value.kind) {
SourceStorageKind.LITERALNUMBER -> inplaceModification_byte_litval_to_variable("P8ZP_SCRATCH_B1", DataType.UBYTE, operator, value.number!!.number.toInt())
SourceStorageKind.VARIABLE -> inplaceModification_byte_variable_to_variable("P8ZP_SCRATCH_B1", DataType.UBYTE, operator, value.asmVarname)
@ -182,9 +202,10 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
inplaceModification_byte_value_to_variable("P8ZP_SCRATCH_B1", DataType.UBYTE, operator, value.expression!!)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
asmgen.out(" lda P8ZP_SCRATCH_B1 | jsr prog8_lib.write_byte_to_address_on_stack | inx")
asmgen.restoreRegisterStack(CpuRegister.Y, false)
asmgen.restoreRegisterStack(CpuRegister.A, false)
asmgen.out(" ldx P8ZP_SCRATCH_B1 | jsr prog8_lib.write_byte_X_to_address_in_AY")
}
}
}
@ -213,7 +234,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
inplaceModification_byte_value_to_variable(targetVarName, target.datatype, operator, value.expression!!)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
}
in WordDatatypes -> {
@ -231,25 +251,47 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
inplaceModification_word_value_to_variable(targetVarName, target.datatype, operator, value.expression!!)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
}
DataType.FLOAT -> {
when(value.kind) {
SourceStorageKind.LITERALNUMBER -> inplaceModification_float_litval_to_variable(targetVarName, operator, value.number!!.number, target.scope!!)
SourceStorageKind.VARIABLE -> inplaceModification_float_variable_to_variable(targetVarName, operator, value.asmVarname, target.scope!!)
SourceStorageKind.REGISTER -> inplaceModification_float_variable_to_variable(targetVarName, operator, regName(value), target.scope!!)
SourceStorageKind.LITERALNUMBER -> inplaceModification_float_litval_to_variable(
targetVarName,
operator,
value.number!!.number
)
SourceStorageKind.VARIABLE -> inplaceModification_float_variable_to_variable(
targetVarName,
operator,
value.asmVarname
)
SourceStorageKind.REGISTER -> inplaceModification_float_variable_to_variable(
targetVarName,
operator,
regName(value)
)
SourceStorageKind.MEMORY -> TODO("memread into float array")
SourceStorageKind.ARRAY -> inplaceModification_float_value_to_variable(targetVarName, operator, value.array!!, target.scope!!)
SourceStorageKind.ARRAY -> inplaceModification_float_value_to_variable(
targetVarName,
operator,
value.array!!
)
SourceStorageKind.EXPRESSION -> {
if(value.expression is PtTypeCast) {
if (tryInplaceModifyWithRemovedRedundantCast(value.expression, target, operator)) return
inplaceModification_float_value_to_variable(targetVarName, operator, value.expression, target.scope!!)
inplaceModification_float_value_to_variable(
targetVarName,
operator,
value.expression
)
} else {
inplaceModification_float_value_to_variable(targetVarName, operator, value.expression!!, target.scope!!)
inplaceModification_float_value_to_variable(
targetVarName,
operator,
value.expression!!
)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
}
else -> throw AssemblyError("weird type to do in-place modification on ${target.datatype}")
@ -264,7 +306,7 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
return
asmgen.loadScaledArrayIndexIntoRegister(target.array, DataType.UBYTE, CpuRegister.Y)
asmgen.out(" lda ${target.array.variable.name},y | sta P8ZP_SCRATCH_B1")
asmgen.saveRegisterLocal(CpuRegister.Y, target.scope!!)
asmgen.saveRegisterStack(CpuRegister.Y, false)
when(value.kind) {
SourceStorageKind.LITERALNUMBER -> inplaceModification_byte_litval_to_variable("P8ZP_SCRATCH_B1", target.datatype, operator, value.number!!.number.toInt())
SourceStorageKind.VARIABLE -> inplaceModification_byte_variable_to_variable("P8ZP_SCRATCH_B1", target.datatype, operator, value.asmVarname)
@ -278,9 +320,8 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
inplaceModification_byte_value_to_variable("P8ZP_SCRATCH_B1", target.datatype, operator, value.expression!!)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
asmgen.restoreRegisterLocal(CpuRegister.Y)
asmgen.restoreRegisterStack(CpuRegister.Y, false)
asmgen.out(" lda P8ZP_SCRATCH_B1 | sta ${target.array.variable.name},y")
}
in WordDatatypes -> {
@ -310,7 +351,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
inplaceModification_word_value_to_variable("P8ZP_SCRATCH_W1", target.datatype, operator, value.expression!!)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
asmgen.restoreRegisterStack(CpuRegister.Y, false)
if(target.array.splitWords) {
@ -336,21 +376,44 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
ldy #>$tempvar
jsr floats.copy_float""") // copy from array into float temp var, clobbers A,Y
when(value.kind) {
SourceStorageKind.LITERALNUMBER -> inplaceModification_float_litval_to_variable(tempvar, operator, value.number!!.number, target.scope!!)
SourceStorageKind.VARIABLE -> inplaceModification_float_variable_to_variable(tempvar, operator, value.asmVarname, target.scope!!)
SourceStorageKind.REGISTER -> inplaceModification_float_variable_to_variable(tempvar, operator, regName(value), target.scope!!)
SourceStorageKind.LITERALNUMBER -> inplaceModification_float_litval_to_variable(
tempvar,
operator,
value.number!!.number
)
SourceStorageKind.VARIABLE -> inplaceModification_float_variable_to_variable(
tempvar,
operator,
value.asmVarname
)
SourceStorageKind.REGISTER -> inplaceModification_float_variable_to_variable(
tempvar,
operator,
regName(value)
)
SourceStorageKind.MEMORY -> TODO("memread into float")
SourceStorageKind.ARRAY -> inplaceModification_float_value_to_variable(tempvar, operator, value.array!!, target.scope!!)
SourceStorageKind.ARRAY -> inplaceModification_float_value_to_variable(
tempvar,
operator,
value.array!!
)
SourceStorageKind.EXPRESSION -> {
if(value.expression is PtTypeCast) {
if (tryInplaceModifyWithRemovedRedundantCast(value.expression, target, operator))
return
inplaceModification_float_value_to_variable(tempvar, operator, value.expression, target.scope!!)
inplaceModification_float_value_to_variable(
tempvar,
operator,
value.expression
)
} else {
inplaceModification_float_value_to_variable(tempvar, operator, value.expression!!, target.scope!!)
inplaceModification_float_value_to_variable(
tempvar,
operator,
value.expression!!
)
}
}
else -> throw AssemblyError("weird source type ${value.kind}")
}
asmgen.out("""
lda P8ZP_SCRATCH_W1
@ -372,7 +435,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
}
}
TargetStorageKind.REGISTER -> throw AssemblyError("no asm gen for reg in-place modification")
TargetStorageKind.STACK -> throw AssemblyError("no asm gen for stack in-place modification")
}
}
@ -592,8 +654,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
}
private fun inplaceModification_byte_value_to_variable(name: String, dt: DataType, operator: String, value: PtExpression) {
// this should be the last resort for code generation for this,
// because the value is evaluated onto the eval stack (=slow).
when (operator) {
"+" -> {
asmgen.assignExpressionToRegister(value, RegisterOrPair.A)
@ -1071,14 +1131,14 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
private fun inplaceModification_byte_memread_to_variable(name: String, dt: DataType, operator: String, memread: PtMemoryByte) {
when (operator) {
"+" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
asmgen.out("""
clc
adc $name
sta $name""")
}
"-" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
val tmpByte = if(name!="P8ZP_SCRATCH_B1") "P8ZP_SCRATCH_B1" else "P8ZP_SCRATCH_REG"
asmgen.out("""
sta $tmpByte
@ -1088,15 +1148,15 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
sta $name""")
}
"|" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
asmgen.out(" ora $name | sta $name")
}
"&" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
asmgen.out(" and $name | sta $name")
}
"^" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
asmgen.out(" eor $name | sta $name")
}
else -> {
@ -1108,7 +1168,7 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
private fun inplaceModification_word_memread_to_variable(name: String, dt: DataType, operator: String, memread: PtMemoryByte) {
when (operator) {
"+" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
asmgen.out("""
clc
adc $name
@ -1118,7 +1178,7 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
+""")
}
"-" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
val tmpByte = if(name!="P8ZP_SCRATCH_B1") "P8ZP_SCRATCH_B1" else "P8ZP_SCRATCH_REG"
asmgen.out("""
sta $tmpByte
@ -1131,11 +1191,11 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
+""")
}
"|" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
asmgen.out(" ora $name | sta $name")
}
"&" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
asmgen.out(" and $name | sta $name")
if(dt in WordDatatypes) {
if(asmgen.isTargetCpu(CpuType.CPU65c02))
@ -1145,7 +1205,7 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
}
}
"^" -> {
asmgen.translateDirectMemReadExpressionToRegAorStack(memread, false)
asmgen.translateDirectMemReadExpressionToRegA(memread)
asmgen.out(" eor $name | sta $name")
}
else -> {
@ -1998,8 +2058,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
}
private fun inplaceModification_word_value_to_variable(name: String, dt: DataType, operator: String, value: PtExpression) {
// this should be the last resort for code generation for this,
// because the value is evaluated onto the eval stack (=slow).
fun multiplyVarByWordInAY() {
asmgen.out("""
sta P8ZP_SCRATCH_W1
@ -2286,9 +2344,8 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
}
}
private fun inplaceModification_float_value_to_variable(name: String, operator: String, value: PtExpression, scope: IPtSubroutine) {
private fun inplaceModification_float_value_to_variable(name: String, operator: String, value: PtExpression) {
asmgen.assignExpressionToRegister(value, RegisterOrPair.FAC1)
asmgen.saveRegisterLocal(CpuRegister.X, scope)
when (operator) {
"+" -> {
asmgen.out("""
@ -2330,11 +2387,9 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
ldy #>$name
jsr floats.MOVMF
""")
asmgen.restoreRegisterLocal(CpuRegister.X)
}
private fun inplaceModification_float_variable_to_variable(name: String, operator: String, otherName: String, scope: IPtSubroutine) {
asmgen.saveRegisterLocal(CpuRegister.X, scope)
private fun inplaceModification_float_variable_to_variable(name: String, operator: String, otherName: String) {
when (operator) {
"+" -> {
asmgen.out("""
@ -2446,12 +2501,10 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
ldy #>$name
jsr floats.MOVMF
""")
asmgen.restoreRegisterLocal(CpuRegister.X)
}
private fun inplaceModification_float_litval_to_variable(name: String, operator: String, value: Double, scope: IPtSubroutine) {
private fun inplaceModification_float_litval_to_variable(name: String, operator: String, value: Double) {
val constValueName = allocator.getFloatAsmConst(value)
asmgen.saveRegisterLocal(CpuRegister.X, scope)
when (operator) {
"+" -> {
if (value == 0.0)
@ -2569,6 +2622,5 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
ldy #>$name
jsr floats.MOVMF
""")
asmgen.restoreRegisterLocal(CpuRegister.X)
}
}

2
codeGenIntermediate/src/prog8/codegen/intermediate/AssignmentGen.kt
View File

@ -96,8 +96,6 @@ internal class AssignmentGen(private val codeGen: IRCodeGen, private val express
}
private fun fallbackAssign(origAssign: PtAugmentedAssign): IRCodeChunks {
if (codeGen.options.slowCodegenWarnings)
codeGen.errors.warn("indirect code for in-place assignment", origAssign.position)
val value: PtExpression
if(origAssign.operator in PrefixOperators) {
value = PtPrefix(origAssign.operator, origAssign.value.type, origAssign.value.position)

5
codeGenIntermediate/src/prog8/codegen/intermediate/BuiltinFuncGen.kt
View File

@ -24,10 +24,7 @@ internal class BuiltinFuncGen(private val codeGen: IRCodeGen, private val exprGe
"popw" -> funcPopw(call)
"push" -> funcPush(call)
"pushw" -> funcPushw(call)
"rsave",
"rsavex",
"rrestore",
"rrestorex" -> ExpressionCodeResult.EMPTY // vm doesn't have registers to save/restore
"rsave", "rrestore" -> ExpressionCodeResult.EMPTY // vm doesn't have registers to save/restore
"callfar" -> funcCallfar(call)
"msb" -> funcMsb(call)
"lsb" -> funcLsb(call)

3
codeGenIntermediate/src/prog8/codegen/intermediate/IRCodeGen.kt
View File

@ -29,9 +29,6 @@ class IRCodeGen(
irSymbolTable = IRSymbolTable(symbolTable)
val irProg = IRProgram(program.name, irSymbolTable, options, program.encoding)
if(options.evalStackBaseAddress!=null)
throw AssemblyError("IR doesn't use eval-stack")
// collect global variables initializers
program.allBlocks().forEach {
val result = mutableListOf<IRCodeChunkBase>()

71
codeOptimizers/src/prog8/optimizer/BinExprSplitter.kt
View File

@ -1,71 +0,0 @@
package prog8.optimizer
import prog8.ast.IStatementContainer
import prog8.ast.Node
import prog8.ast.Program
import prog8.ast.expressions.BinaryExpression
import prog8.ast.statements.AssignTarget
import prog8.ast.statements.Assignment
import prog8.ast.statements.AssignmentOrigin
import prog8.ast.walk.AstWalker
import prog8.ast.walk.IAstModification
import prog8.code.core.AugmentAssignmentOperators
import prog8.code.core.CompilationOptions
import prog8.code.core.DataType
import prog8.code.target.VMTarget
class BinExprSplitter(private val program: Program, private val options: CompilationOptions) : AstWalker() {
override fun after(assignment: Assignment, parent: Node): Iterable<IAstModification> {
if(options.compTarget.name == VMTarget.NAME)
return noModifications // don't split expressions when targeting the vm codegen, it handles nested expressions well
if(assignment.value.inferType(program) istype DataType.FLOAT && !options.optimizeFloatExpressions)
return noModifications
val binExpr = assignment.value as? BinaryExpression
if (binExpr != null) {
if(binExpr.operator in AugmentAssignmentOperators && isSimpleTarget(assignment.target)) {
if(assignment.target isSameAs binExpr.right)
return noModifications
if(assignment.target isSameAs binExpr.left) {
if(binExpr.right.isSimple)
return noModifications
val leftBx = binExpr.left as? BinaryExpression
if(leftBx!=null && (!leftBx.left.isSimple || !leftBx.right.isSimple))
return noModifications
val rightBx = binExpr.right as? BinaryExpression
if(rightBx!=null && (!rightBx.left.isSimple || !rightBx.right.isSimple))
return noModifications
}
if(binExpr.right.isSimple) {
val firstAssign = Assignment(assignment.target.copy(), binExpr.left, AssignmentOrigin.OPTIMIZER, binExpr.left.position)
val targetExpr = assignment.target.toExpression()
val augExpr = BinaryExpression(targetExpr, binExpr.operator, binExpr.right, binExpr.right.position)
return listOf(
IAstModification.ReplaceNode(binExpr, augExpr, assignment),
IAstModification.InsertBefore(assignment, firstAssign, assignment.parent as IStatementContainer)
)
}
}
// Further unraveling of binary expressions is really complicated here and
// often results in much bigger code, thereby defeating the purpose a bit.
// All in all this should probably be fixed in a better code generation backend
// that doesn't require this at all.
}
return noModifications
}
private fun isSimpleTarget(target: AssignTarget) =
if (target.identifier!=null || target.memoryAddress!=null)
!target.isIOAddress(options.compTarget.machine)
else
false
}

41
codeOptimizers/src/prog8/optimizer/ConstantFoldingOptimizer.kt
View File

@ -235,6 +235,47 @@ class ConstantFoldingOptimizer(private val program: Program) : AstWalker() {
}
}
if(rightconst!=null && (expr.operator=="<<" || expr.operator==">>")) {
val dt = expr.left.inferType(program)
if(dt.isBytes && rightconst.number>=8) {
if(dt.istype(DataType.UBYTE)) {
val zeroUB = NumericLiteral(DataType.UBYTE, 0.0, expr.position)
modifications.add(IAstModification.ReplaceNode(expr, zeroUB, parent))
} else {
if(leftconst!=null) {
val zeroB = NumericLiteral(DataType.BYTE, 0.0, expr.position)
val minusoneB = NumericLiteral(DataType.BYTE, -1.0, expr.position)
if(leftconst.number<0.0) {
if(expr.operator=="<<")
modifications.add(IAstModification.ReplaceNode(expr, zeroB, parent))
else
modifications.add(IAstModification.ReplaceNode(expr, minusoneB, parent))
} else {
modifications.add(IAstModification.ReplaceNode(expr, zeroB, parent))
}
}
}
}
else if(dt.isWords && rightconst.number>=16) {
if(dt.istype(DataType.UWORD)) {
val zeroUW = NumericLiteral(DataType.UWORD, 0.0, expr.position)
modifications.add(IAstModification.ReplaceNode(expr, zeroUW, parent))
} else {
if(leftconst!=null) {
val zeroW = NumericLiteral(DataType.WORD, 0.0, expr.position)
val minusoneW = NumericLiteral(DataType.WORD, -1.0, expr.position)
if(leftconst.number<0.0) {
if(expr.operator=="<<")
modifications.add(IAstModification.ReplaceNode(expr, zeroW, parent))
else
modifications.add(IAstModification.ReplaceNode(expr, minusoneW, parent))
} else {
modifications.add(IAstModification.ReplaceNode(expr, zeroW, parent))
}
}
}
}
}
return modifications
}

6
codeOptimizers/src/prog8/optimizer/Extensions.kt
View File

@ -65,9 +65,3 @@ fun Program.simplifyExpressions(errors: IErrorReporter, target: ICompilationTarg
opti.visit(this)
return opti.applyModifications()
}
fun Program.splitBinaryExpressions(options: CompilationOptions) : Int {
val opti = BinExprSplitter(this, options)
opti.visit(this)
return opti.applyModifications()
}

2
codeOptimizers/src/prog8/optimizer/StatementOptimizer.kt
View File

@ -111,8 +111,6 @@ class StatementOptimizer(private val program: Program,
// remove obvious dangling elses (else after a return)
if(ifElse.elsepart.isNotEmpty() && ifElse.truepart.statements.singleOrNull() is Return) {
val elsePart = AnonymousScope(ifElse.elsepart.statements, ifElse.elsepart.position)
if(options.slowCodegenWarnings)
errors.warn("else can be omitted", ifElse.elsepart.position)
return listOf(
IAstModification.ReplaceNode(ifElse.elsepart, AnonymousScope(mutableListOf(), ifElse.elsepart.position), ifElse),
IAstModification.InsertAfter(ifElse, elsePart, parent as IStatementContainer)

46
compiler/res/prog8lib/atari/textio.p8
View File

@ -153,10 +153,9 @@ asmsub print (str text @ AY) clobbers(A,Y) {
}}
}
asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, with left padding 0s (3 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
pha
tya
@ -164,16 +163,13 @@ asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
pla
jsr chrout
txa
jsr chrout
ldx P8ZP_SCRATCH_REG
rts
jmp chrout
}}
}
asmsub print_ub (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
_print_byte_digits
pha
@ -189,16 +185,13 @@ _print_byte_digits
beq _ones
jsr chrout
_ones txa
jsr chrout
ldx P8ZP_SCRATCH_REG
rts
jmp chrout
}}
}
asmsub print_b (byte value @ A) clobbers(A,Y) {
asmsub print_b (byte value @ A) clobbers(A,X,Y) {
; ---- print the byte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
pha
cmp #0
bpl +
@ -210,10 +203,9 @@ asmsub print_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in hex form (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
bcc +
pha
lda #'$'
@ -222,16 +214,13 @@ asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr conv.ubyte2hex
jsr chrout
tya
jsr chrout
ldx P8ZP_SCRATCH_REG
rts
jmp chrout
}}
}
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
sta P8ZP_SCRATCH_B1
bcc +
lda #'%'
@ -244,12 +233,11 @@ asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr chrout
dey
bne -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
pha
@ -261,7 +249,7 @@ asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in hexadecimal form (4 digits)
; (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
@ -274,10 +262,9 @@ asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub print_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, with left padding 0s (5 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -285,17 +272,14 @@ asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
jsr chrout
iny
bne -
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
asmsub print_uw (uword value @ AY) clobbers(A,Y) {
asmsub print_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldx P8ZP_SCRATCH_REG
ldy #0
- lda conv.uword2decimal.decTenThousands,y
beq _allzero
@ -316,7 +300,7 @@ _allzero
}}
}
asmsub print_w (word value @ AY) clobbers(A,Y) {
asmsub print_w (word value @ AY) clobbers(A,X,Y) {
; ---- print the (signed) word in A/Y in decimal form, without left padding 0's
%asm {{
cpy #0
@ -388,7 +372,7 @@ sub setcc (ubyte column, ubyte row, ubyte char, ubyte charcolor) {
}}
}
asmsub plot (ubyte col @ Y, ubyte row @ A) clobbers(A) {
asmsub plot (ubyte col @ Y, ubyte row @ A) {
; ---- set cursor at specific position
; TODO
%asm {{

215
compiler/res/prog8lib/c128/syslib.p8
View File

@ -104,34 +104,26 @@ romsub $FFF3 = IOBASE() -> uword @ XY ; read base addr
; ---- utilities -----
asmsub STOP2() -> ubyte @A {
asmsub STOP2() clobbers(X) -> ubyte @A {
; -- check if STOP key was pressed, returns true if so. More convenient to use than STOP() because that only sets the carry status flag.
%asm {{
txa
pha
jsr cbm.STOP
beq +
pla
tax
lda #0
rts
+ pla
tax
lda #1
+ lda #1
rts
}}
}
asmsub RDTIM16() -> uword @AY {
asmsub RDTIM16() clobbers(X) -> uword @AY {
; -- like RDTIM() but only returning the lower 16 bits in AY for convenience
%asm {{
stx P8ZP_SCRATCH_REG
jsr cbm.RDTIM
pha
txa
tay
pla
ldx P8ZP_SCRATCH_REG
rts
}}
}
@ -446,10 +438,6 @@ _irq_handler_init
sta IRQ_SCRATCH_ZPWORD2
lda P8ZP_SCRATCH_W2+1
sta IRQ_SCRATCH_ZPWORD2+1
; Set X to the bottom 32 bytes of the evaluation stack, to HOPEFULLY not clobber it.
; This leaves 128-32=96 stack entries for the main program, and 32 stack entries for the IRQ handler.
; We assume IRQ handlers don't contain complex expressions taking up more than that.
ldx #32
cld
rts
@ -774,111 +762,108 @@ cx16 {
; the sixteen virtual 16-bit registers that the CX16 has defined in the zeropage
; they are simulated on the C128 as well but their location in memory is different
; (because there's no room for them in the zeropage)
; $1300-$1bff is unused RAM on C128. We'll use $1a00-$1bff as the lo/hi evalstack.
; the virtual registers are allocated at the bottom of the eval-stack (should be ample space unless
; you're doing insane nesting of expressions...)
; NOTE: the memory location of these registers can change based on the "-esa" compiler option
&uword r0 = $1b00
&uword r1 = $1b02
&uword r2 = $1b04
&uword r3 = $1b06
&uword r4 = $1b08
&uword r5 = $1b0a
&uword r6 = $1b0c
&uword r7 = $1b0e
&uword r8 = $1b10
&uword r9 = $1b12
&uword r10 = $1b14
&uword r11 = $1b16
&uword r12 = $1b18
&uword r13 = $1b1a
&uword r14 = $1b1c
&uword r15 = $1b1e
; $1300-$1bff is unused RAM on C128.
&uword r0 = $1be0
&uword r1 = $1be2
&uword r2 = $1be4
&uword r3 = $1be6
&uword r4 = $1be8
&uword r5 = $1bea
&uword r6 = $1bec
&uword r7 = $1bee
&uword r8 = $1bf0
&uword r9 = $1bf2
&uword r10 = $1bf4
&uword r11 = $1bf6
&uword r12 = $1bf8
&uword r13 = $1bfa
&uword r14 = $1bfc
&uword r15 = $1bfe
&word r0s = $1b00
&word r1s = $1b02
&word r2s = $1b04
&word r3s = $1b06
&word r4s = $1b08
&word r5s = $1b0a
&word r6s = $1b0c
&word r7s = $1b0e
&word r8s = $1b10
&word r9s = $1b12
&word r10s = $1b14
&word r11s = $1b16
&word r12s = $1b18
&word r13s = $1b1a
&word r14s = $1b1c
&word r15s = $1b1e
&word r0s = $1be0
&word r1s = $1be2
&word r2s = $1be4
&word r3s = $1be6
&word r4s = $1be8
&word r5s = $1bea
&word r6s = $1bec
&word r7s = $1bee
&word r8s = $1bf0
&word r9s = $1bf2
&word r10s = $1bf4
&word r11s = $1bf6
&word r12s = $1bf8
&word r13s = $1bfa
&word r14s = $1bfc
&word r15s = $1bfe
&ubyte r0L = $1b00
&ubyte r1L = $1b02
&ubyte r2L = $1b04
&ubyte r3L = $1b06
&ubyte r4L = $1b08
&ubyte r5L = $1b0a
&ubyte r6L = $1b0c
&ubyte r7L = $1b0e
&ubyte r8L = $1b10
&ubyte r9L = $1b12
&ubyte r10L = $1b14
&ubyte r11L = $1b16
&ubyte r12L = $1b18
&ubyte r13L = $1b1a
&ubyte r14L = $1b1c
&ubyte r15L = $1b1e
&ubyte r0L = $1be0
&ubyte r1L = $1be2
&ubyte r2L = $1be4
&ubyte r3L = $1be6
&ubyte r4L = $1be8
&ubyte r5L = $1bea
&ubyte r6L = $1bec
&ubyte r7L = $1bee
&ubyte r8L = $1bf0
&ubyte r9L = $1bf2
&ubyte r10L = $1bf4
&ubyte r11L = $1bf6
&ubyte r12L = $1bf8
&ubyte r13L = $1bfa
&ubyte r14L = $1bfc
&ubyte r15L = $1bfe
&ubyte r0H = $1b01
&ubyte r1H = $1b03
&ubyte r2H = $1b05
&ubyte r3H = $1b07
&ubyte r4H = $1b09
&ubyte r5H = $1b0b
&ubyte r6H = $1b0d
&ubyte r7H = $1b0f
&ubyte r8H = $1b11
&ubyte r9H = $1b13
&ubyte r10H = $1b15
&ubyte r11H = $1b17
&ubyte r12H = $1b19
&ubyte r13H = $1b1b
&ubyte r14H = $1b1d
&ubyte r15H = $1b1f
&ubyte r0H = $1be1
&ubyte r1H = $1be3
&ubyte r2H = $1be5
&ubyte r3H = $1be7
&ubyte r4H = $1be9
&ubyte r5H = $1beb
&ubyte r6H = $1bed
&ubyte r7H = $1bef
&ubyte r8H = $1bf1
&ubyte r9H = $1bf3
&ubyte r10H = $1bf5
&ubyte r11H = $1bf7
&ubyte r12H = $1bf9
&ubyte r13H = $1bfb
&ubyte r14H = $1bfd
&ubyte r15H = $1bff
&byte r0sL = $1b00
&byte r1sL = $1b02
&byte r2sL = $1b04
&byte r3sL = $1b06
&byte r4sL = $1b08
&byte r5sL = $1b0a
&byte r6sL = $1b0c
&byte r7sL = $1b0e
&byte r8sL = $1b10
&byte r9sL = $1b12
&byte r10sL = $1b14
&byte r11sL = $1b16
&byte r12sL = $1b18
&byte r13sL = $1b1a
&byte r14sL = $1b1c
&byte r15sL = $1b1e
&byte r0sL = $1be0
&byte r1sL = $1be2
&byte r2sL = $1be4
&byte r3sL = $1be6
&byte r4sL = $1be8
&byte r5sL = $1bea
&byte r6sL = $1bec
&byte r7sL = $1bee
&byte r8sL = $1bf0
&byte r9sL = $1bf2
&byte r10sL = $1bf4
&byte r11sL = $1bf6
&byte r12sL = $1bf8
&byte r13sL = $1bfa
&byte r14sL = $1bfc
&byte r15sL = $1bfe
&byte r0sH = $1b01
&byte r1sH = $1b03
&byte r2sH = $1b05
&byte r3sH = $1b07
&byte r4sH = $1b09
&byte r5sH = $1b0b
&byte r6sH = $1b0d
&byte r7sH = $1b0f
&byte r8sH = $1b11
&byte r9sH = $1b13
&byte r10sH = $1b15
&byte r11sH = $1b17
&byte r12sH = $1b19
&byte r13sH = $1b1b
&byte r14sH = $1b1d
&byte r15sH = $1b1f
&byte r0sH = $1be1
&byte r1sH = $1be3
&byte r2sH = $1be5
&byte r3sH = $1be7
&byte r4sH = $1be9
&byte r5sH = $1beb
&byte r6sH = $1bed
&byte r7sH = $1bef
&byte r8sH = $1bf1
&byte r9sH = $1bf3
&byte r10sH = $1bf5
&byte r11sH = $1bf7
&byte r12sH = $1bf9
&byte r13sH = $1bfb
&byte r14sH = $1bfd
&byte r15sH = $1bff
asmsub save_virtual_registers() clobbers(A,Y) {
%asm {{

69
compiler/res/prog8lib/c128/textio.p8
View File

@ -97,13 +97,12 @@ sub uppercase() {
c128.VM1 &= ~2
}
asmsub scroll_left (bool alsocolors @ Pc) clobbers(A, Y) {
asmsub scroll_left (bool alsocolors @ Pc) clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character to the left
; contents of the rightmost column are unchanged, you should clear/refill this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -133,17 +132,15 @@ _scroll_screen ; scroll only the screen memory
dey
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_right (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_right (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character to the right
; contents of the leftmost column are unchanged, you should clear/refill this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -169,17 +166,15 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_up (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_up (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character up
; contents of the bottom row are unchanged, you should refill/clear this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -205,17 +200,15 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_down (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_down (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character down
; contents of the top row are unchanged, you should refill/clear this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -241,7 +234,6 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
@ -266,10 +258,9 @@ asmsub print (str text @ AY) clobbers(A,Y) {
}}
}
asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, with left padding 0s (3 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
pha
tya
@ -277,16 +268,13 @@ asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
pla
jsr cbm.CHROUT
txa
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_ub (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
_print_byte_digits
pha
@ -302,16 +290,13 @@ _print_byte_digits
beq _ones
jsr cbm.CHROUT
_ones txa
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_b (byte value @ A) clobbers(A,Y) {
asmsub print_b (byte value @ A) clobbers(A,X,Y) {
; ---- print the byte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
pha
cmp #0
bpl +
@ -323,10 +308,9 @@ asmsub print_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in hex form (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
bcc +
pha
lda #'$'
@ -335,16 +319,13 @@ asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr conv.ubyte2hex
jsr cbm.CHROUT
tya
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
sta P8ZP_SCRATCH_B1
bcc +
lda #'%'
@ -357,12 +338,11 @@ asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr cbm.CHROUT
dey
bne -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
pha
@ -374,7 +354,7 @@ asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in hexadecimal form (4 digits)
; (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
@ -387,10 +367,9 @@ asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub print_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, with left padding 0s (5 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -398,17 +377,14 @@ asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
jsr cbm.CHROUT
iny
bne -
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
asmsub print_uw (uword value @ AY) clobbers(A,Y) {
asmsub print_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldx P8ZP_SCRATCH_REG
ldy #0
- lda conv.uword2decimal.decTenThousands,y
beq _allzero
@ -429,7 +405,7 @@ _allzero
}}
}
asmsub print_w (word value @ AY) clobbers(A,Y) {
asmsub print_w (word value @ AY) clobbers(A,X,Y) {
; ---- print the (signed) word in A/Y in decimal form, without left padding 0's
%asm {{
cpy #0
@ -583,15 +559,10 @@ _colormod sta $ffff ; modified
}}
}
asmsub plot (ubyte col @ Y, ubyte row @ A) clobbers(A) {
; ---- safe wrapper around PLOT kernal routine, to save the X register.
asmsub plot (ubyte col @ Y, ubyte row @ X) {
%asm {{
stx P8ZP_SCRATCH_REG
tax
clc
jsr cbm.PLOT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.PLOT
}}
}

466
compiler/res/prog8lib/c64/floats.asm
View File

@ -5,13 +5,11 @@ FL_ZERO_const .byte 0,0,0,0,0 ; 0.0
FL_LOG2_const .byte $80, $31, $72, $17, $f8 ; log(2)
floats_store_reg .byte 0 ; temp storage
floats_temp_var .byte 0,0,0,0,0 ; temporary storage for a float
ub2float .proc
; -- convert ubyte in SCRATCH_ZPB1 to float at address A/Y
; clobbers A, Y
stx P8ZP_SCRATCH_REG
; clobbers A, X, Y
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
ldy P8ZP_SCRATCH_B1
@ -19,15 +17,12 @@ ub2float .proc
jsr GIVAYF
_fac_to_mem ldx P8ZP_SCRATCH_W2
ldy P8ZP_SCRATCH_W2+1
jsr MOVMF
ldx P8ZP_SCRATCH_REG
rts
jmp MOVMF
.pend
b2float .proc
; -- convert byte in SCRATCH_ZPB1 to float at address A/Y
; clobbers A, Y
stx P8ZP_SCRATCH_REG
; clobbers A, X, Y
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
lda P8ZP_SCRATCH_B1
@ -37,7 +32,7 @@ b2float .proc
uw2float .proc
; -- convert uword in SCRATCH_ZPWORD1 to float at address A/Y
stx P8ZP_SCRATCH_REG
; clobbers X
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
lda P8ZP_SCRATCH_W1
@ -48,7 +43,7 @@ uw2float .proc
w2float .proc
; -- convert word in SCRATCH_ZPWORD1 to float at address A/Y
stx P8ZP_SCRATCH_REG
; clobbers X
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
ldy P8ZP_SCRATCH_W1
@ -60,7 +55,7 @@ w2float .proc
cast_from_uw .proc
; -- uword in A/Y into float var at (P8ZP_SCRATCH_W2)
stx P8ZP_SCRATCH_REG
; clobbers X
jsr GIVUAYFAY
jmp ub2float._fac_to_mem
.pend
@ -68,7 +63,7 @@ cast_from_uw .proc
cast_from_w .proc
; -- word in A/Y into float var at (P8ZP_SCRATCH_W2)
stx P8ZP_SCRATCH_REG
; clobbers X
jsr GIVAYFAY
jmp ub2float._fac_to_mem
.pend
@ -76,7 +71,7 @@ cast_from_w .proc
cast_from_ub .proc
; -- ubyte in Y into float var at (P8ZP_SCRATCH_W2)
stx P8ZP_SCRATCH_REG
; clobbers X
jsr FREADUY
jmp ub2float._fac_to_mem
.pend
@ -84,169 +79,41 @@ cast_from_ub .proc
cast_from_b .proc
; -- byte in A into float var at (P8ZP_SCRATCH_W2)
stx P8ZP_SCRATCH_REG
; clobbers X
jsr FREADSA
jmp ub2float._fac_to_mem
.pend
cast_as_uw_into_ya .proc ; also used for float 2 ub
; -- cast float at A/Y to uword into Y/A
; clobbers X
jsr MOVFM
jmp cast_FAC1_as_uw_into_ya
.pend
cast_as_w_into_ay .proc ; also used for float 2 b
; -- cast float at A/Y to word into A/Y
; clobbers X
jsr MOVFM
jmp cast_FAC1_as_w_into_ay
.pend
cast_FAC1_as_uw_into_ya .proc ; also used for float 2 ub
; -- cast fac1 to uword into Y/A
stx P8ZP_SCRATCH_REG
jsr GETADR ; into Y/A
ldx P8ZP_SCRATCH_REG
rts
; clobbers X
jmp GETADR ; into Y/A
.pend
cast_FAC1_as_w_into_ay .proc ; also used for float 2 b
; -- cast fac1 to word into A/Y
stx P8ZP_SCRATCH_REG
; clobbers X
jsr AYINT
ldy floats.AYINT_facmo
lda floats.AYINT_facmo+1
ldx P8ZP_SCRATCH_REG
rts
.pend
stack_b2float .proc
; -- b2float operating on the stack
inx
lda P8ESTACK_LO,x
stx P8ZP_SCRATCH_REG
jsr FREADSA
jmp push_fac1._internal
.pend
stack_w2float .proc
; -- w2float operating on the stack
inx
ldy P8ESTACK_LO,x
lda P8ESTACK_HI,x
stx P8ZP_SCRATCH_REG
jsr GIVAYF
jmp push_fac1._internal
.pend
stack_ub2float .proc
; -- ub2float operating on the stack
inx
lda P8ESTACK_LO,x
stx P8ZP_SCRATCH_REG
tay
lda #0
jsr GIVAYF
jmp push_fac1._internal
.pend
stack_uw2float .proc
; -- uw2float operating on the stack
inx
lda P8ESTACK_LO,x
ldy P8ESTACK_HI,x
stx P8ZP_SCRATCH_REG
jsr GIVUAYFAY
jmp push_fac1._internal
.pend
stack_float2w .proc ; also used for float2b
jsr pop_float_fac1
stx P8ZP_SCRATCH_REG
jsr AYINT
ldx P8ZP_SCRATCH_REG
lda floats.AYINT_facmo
sta P8ESTACK_HI,x
lda floats.AYINT_facmo+1
sta P8ESTACK_LO,x
dex
rts
.pend
stack_float2uw .proc ; also used for float2ub
jsr pop_float_fac1
stx P8ZP_SCRATCH_REG
jsr GETADR
ldx P8ZP_SCRATCH_REG
sta P8ESTACK_HI,x
tya
sta P8ESTACK_LO,x
dex
rts
.pend
push_float .proc
; ---- push mflpt5 in A/Y onto stack
; (taking 3 stack positions = 6 bytes of which 1 is padding)
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
ldy #0
lda (P8ZP_SCRATCH_W1),y
sta P8ESTACK_LO,x
iny
lda (P8ZP_SCRATCH_W1),y
sta P8ESTACK_HI,x
dex
iny
lda (P8ZP_SCRATCH_W1),y
sta P8ESTACK_LO,x
iny
lda (P8ZP_SCRATCH_W1),y
sta P8ESTACK_HI,x
dex
iny
lda (P8ZP_SCRATCH_W1),y
sta P8ESTACK_LO,x
dex
rts
.pend
pop_float .proc
; ---- pops mflpt5 from stack to memory A/Y
; (frees 3 stack positions = 6 bytes of which 1 is padding)
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
ldy #4
inx
lda P8ESTACK_LO,x
sta (P8ZP_SCRATCH_W1),y
dey
inx
lda P8ESTACK_HI,x
sta (P8ZP_SCRATCH_W1),y
dey
lda P8ESTACK_LO,x
sta (P8ZP_SCRATCH_W1),y
dey
inx
lda P8ESTACK_HI,x
sta (P8ZP_SCRATCH_W1),y
dey
lda P8ESTACK_LO,x
sta (P8ZP_SCRATCH_W1),y
rts
.pend
pop_float_fac1 .proc
; -- pops float from stack into FAC1
lda #<fmath_float1
ldy #>fmath_float1
jsr pop_float
lda #<fmath_float1
ldy #>fmath_float1
jmp MOVFM
.pend
copy_float .proc
; -- copies the 5 bytes of the mflt value pointed to by P8ZP_SCRATCH_W1,
; into the 5 bytes pointed to by A/Y. Clobbers A,Y.
@ -272,25 +139,23 @@ copy_float .proc
inc_var_f .proc
; -- add 1 to float pointed to by A/Y
; clobbers X
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
stx P8ZP_SCRATCH_REG
jsr MOVFM
lda #<FL_ONE_const
ldy #>FL_ONE_const
jsr FADD
ldx P8ZP_SCRATCH_W1
ldy P8ZP_SCRATCH_W1+1
jsr MOVMF
ldx P8ZP_SCRATCH_REG
rts
jmp MOVMF
.pend
dec_var_f .proc
; -- subtract 1 from float pointed to by A/Y
; clobbers X
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
stx P8ZP_SCRATCH_REG
lda #<FL_ONE_const
ldy #>FL_ONE_const
jsr MOVFM
@ -299,23 +164,7 @@ dec_var_f .proc
jsr FSUB
ldx P8ZP_SCRATCH_W1
ldy P8ZP_SCRATCH_W1+1
jsr MOVMF
ldx P8ZP_SCRATCH_REG
rts
.pend
pop_2_floats_f2_in_fac1 .proc
; -- pop 2 floats from stack, load the second one in FAC1 as well
lda #<fmath_float2
ldy #>fmath_float2
jsr pop_float
lda #<fmath_float1
ldy #>fmath_float1
jsr pop_float
lda #<fmath_float2
ldy #>fmath_float2
jmp MOVFM
jmp MOVMF
.pend
@ -323,71 +172,9 @@ fmath_float1 .byte 0,0,0,0,0 ; storage for a mflpt5 value
fmath_float2 .byte 0,0,0,0,0 ; storage for a mflpt5 value
push_fac1 .proc
; -- push the float in FAC1 onto the stack
stx P8ZP_SCRATCH_REG
_internal ldx #<fmath_float1
ldy #>fmath_float1
jsr MOVMF
lda #<fmath_float1
ldy #>fmath_float1
ldx P8ZP_SCRATCH_REG
jmp push_float
.pend
div_f .proc
; -- push f1/f2 on stack
jsr pop_2_floats_f2_in_fac1
stx P8ZP_SCRATCH_REG
lda #<fmath_float1
ldy #>fmath_float1
jsr FDIV
jmp push_fac1._internal
.pend
add_f .proc
; -- push f1+f2 on stack
jsr pop_2_floats_f2_in_fac1
stx P8ZP_SCRATCH_REG
lda #<fmath_float1
ldy #>fmath_float1
jsr FADD
jmp push_fac1._internal
.pend
sub_f .proc
; -- push f1-f2 on stack
jsr pop_2_floats_f2_in_fac1
stx P8ZP_SCRATCH_REG
lda #<fmath_float1
ldy #>fmath_float1
jsr FSUB
jmp push_fac1._internal
.pend
mul_f .proc
; -- push f1*f2 on stack
jsr pop_2_floats_f2_in_fac1
stx P8ZP_SCRATCH_REG
lda #<fmath_float1
ldy #>fmath_float1
jsr FMULT
jmp push_fac1._internal
.pend
neg_f .proc
; -- toggle the sign bit on the stack
lda P8ESTACK_HI+3,x
eor #$80
sta P8ESTACK_HI+3,x
rts
.pend
var_fac1_less_f .proc
; -- is the float in FAC1 < the variable AY?
stx P8ZP_SCRATCH_REG
; -- is the float in FAC1 < the variable AY? Result in A. Clobbers X.
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #255
beq +
lda #0
@ -397,10 +184,8 @@ var_fac1_less_f .proc
.pend
var_fac1_lesseq_f .proc
; -- is the float in FAC1 <= the variable AY?
stx P8ZP_SCRATCH_REG
; -- is the float in FAC1 <= the variable AY? Result in A. Clobbers X.
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #0
beq +
cmp #255
@ -412,10 +197,8 @@ var_fac1_lesseq_f .proc
.pend
var_fac1_greater_f .proc
; -- is the float in FAC1 > the variable AY?
stx P8ZP_SCRATCH_REG
; -- is the float in FAC1 > the variable AY? Result in A. Clobbers X.
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #1
beq +
lda #0
@ -425,10 +208,8 @@ var_fac1_greater_f .proc
.pend
var_fac1_greatereq_f .proc
; -- is the float in FAC1 >= the variable AY?
stx P8ZP_SCRATCH_REG
; -- is the float in FAC1 >= the variable AY? Result in A. Clobbers X.
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #0
beq +
cmp #1
@ -439,17 +220,23 @@ var_fac1_greatereq_f .proc
rts
.pend
var_fac1_notequal_f .proc
; -- are the floats numbers in FAC1 and the variable AY *not* identical?
stx P8ZP_SCRATCH_REG
var_fac1_equal_f .proc
; -- are the floats numbers in FAC1 and the variable AY *not* identical? Result in A. Clobbers X.
jsr FCOMP
and #1
eor #1
rts
.pend
var_fac1_notequal_f .proc
; -- are the floats numbers in FAC1 and the variable AY *not* identical? Result in A. Clobbers X.
jsr FCOMP
ldx P8ZP_SCRATCH_REG
and #1
rts
.pend
vars_equal_f .proc
; -- are the mflpt5 numbers in P8ZP_SCRATCH_W1 and AY identical?
; -- are the mflpt5 numbers in P8ZP_SCRATCH_W1 and AY identical? Result in A
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
ldy #0
@ -478,51 +265,13 @@ _false lda #0
rts
.pend
equal_f .proc
; -- are the two mflpt5 numbers on the stack identical?
inx
inx
inx
inx
lda P8ESTACK_LO-3,x
cmp P8ESTACK_LO,x
bne _equals_false
lda P8ESTACK_LO-2,x
cmp P8ESTACK_LO+1,x
bne _equals_false
lda P8ESTACK_LO-1,x
cmp P8ESTACK_LO+2,x
bne _equals_false
lda P8ESTACK_HI-2,x
cmp P8ESTACK_HI+1,x
bne _equals_false
lda P8ESTACK_HI-1,x
cmp P8ESTACK_HI+2,x
bne _equals_false
_equals_true lda #1
_equals_store inx
sta P8ESTACK_LO+1,x
rts
_equals_false lda #0
beq _equals_store
.pend
notequal_f .proc
; -- are the two mflpt5 numbers on the stack different?
jsr equal_f
eor #1 ; invert the result
sta P8ESTACK_LO+1,x
rts
.pend
vars_less_f .proc
; -- is float in AY < float in P8ZP_SCRATCH_W2 ?
; -- is float in AY < float in P8ZP_SCRATCH_W2 ? Result in A. Clobbers X.
jsr MOVFM
lda P8ZP_SCRATCH_W2
ldy P8ZP_SCRATCH_W2+1
stx P8ZP_SCRATCH_REG
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #255
bne +
lda #1
@ -532,13 +281,11 @@ vars_less_f .proc
.pend
vars_lesseq_f .proc
; -- is float in AY <= float in P8ZP_SCRATCH_W2 ?
; -- is float in AY <= float in P8ZP_SCRATCH_W2 ? Result in A. Clobbers X.
jsr MOVFM
lda P8ZP_SCRATCH_W2
ldy P8ZP_SCRATCH_W2+1
stx P8ZP_SCRATCH_REG
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #255
bne +
- lda #1
@ -550,7 +297,7 @@ vars_lesseq_f .proc
.pend
less_f .proc
; -- is f1 < f2?
; -- is f1 < f2? Result in A. Clobbers X.
jsr compare_floats
cmp #255
beq compare_floats._return_true
@ -559,7 +306,7 @@ less_f .proc
lesseq_f .proc
; -- is f1 <= f2?
; -- is f1 <= f2? Result in A. Clobbers X.
jsr compare_floats
cmp #255
beq compare_floats._return_true
@ -569,7 +316,7 @@ lesseq_f .proc
.pend
greater_f .proc
; -- is f1 > f2?
; -- is f1 > f2? Result in A. Clobbers X.
jsr compare_floats
cmp #1
beq compare_floats._return_true
@ -577,7 +324,7 @@ greater_f .proc
.pend
greatereq_f .proc
; -- is f1 >= f2?
; -- is f1 >= f2? Result in A. Clobbers X.
jsr compare_floats
cmp #1
beq compare_floats._return_true
@ -586,32 +333,9 @@ greatereq_f .proc
bne compare_floats._return_false
.pend
compare_floats .proc
lda #<fmath_float2
ldy #>fmath_float2
jsr pop_float
lda #<fmath_float1
ldy #>fmath_float1
jsr pop_float
lda #<fmath_float1
ldy #>fmath_float1
jsr MOVFM ; fac1 = flt1
lda #<fmath_float2
ldy #>fmath_float2
stx P8ZP_SCRATCH_REG
jsr FCOMP ; A = flt1 compared with flt2 (0=equal, 1=flt1>flt2, 255=flt1<flt2)
ldx P8ZP_SCRATCH_REG
rts
_return_false lda #0
_return_result sta P8ESTACK_LO,x
dex
rts
_return_true lda #1
bne _return_result
.pend
set_array_float_from_fac1 .proc
; -- set the float in FAC1 in the array (index in A, array in P8ZP_SCRATCH_W1)
; clobbers X
sta P8ZP_SCRATCH_B1
asl a
asl a
@ -622,11 +346,8 @@ set_array_float_from_fac1 .proc
adc P8ZP_SCRATCH_W1
bcc +
iny
+ stx floats_store_reg
tax
jsr MOVMF
ldx floats_store_reg
rts
+ tax
jmp MOVMF
.pend
@ -669,54 +390,59 @@ set_array_float .proc
.pend
equal_zero .proc
jsr floats.pop_float_fac1
jsr floats.SIGN
beq _true
bne _false
_true lda #1
sta P8ESTACK_LO,x
dex
rts
_false lda #0
sta P8ESTACK_LO,x
dex
rts
.pend
pushFAC1 .proc
;-- push floating point in FAC onto the cpu stack
; save return address
pla
sta P8ZP_SCRATCH_W2
pla
sta P8ZP_SCRATCH_W2+1
ldx #<floats.floats_temp_var
ldy #>floats.floats_temp_var
jsr floats.MOVMF
lda floats.floats_temp_var
pha
lda floats.floats_temp_var+1
pha
lda floats.floats_temp_var+2
pha
lda floats.floats_temp_var+3
pha
lda floats.floats_temp_var+4
pha
; re-push return address
lda P8ZP_SCRATCH_W2+1
pha
lda P8ZP_SCRATCH_W2
pha
rts
.pend
notequal_zero .proc
jsr floats.pop_float_fac1
jsr floats.SIGN
bne equal_zero._true
beq equal_zero._false
.pend
popFAC1 .proc
; -- pop floating point value from cpu stack into FAC1
; save return address
pla
sta P8ZP_SCRATCH_W2
pla
sta P8ZP_SCRATCH_W2+1
pla
sta floats.floats_temp_var+4
pla
sta floats.floats_temp_var+3
pla
sta floats.floats_temp_var+2
pla
sta floats.floats_temp_var+1
pla
sta floats.floats_temp_var
lda #<floats.floats_temp_var
ldy #>floats.floats_temp_var
jsr floats.MOVFM
; re-push return address
lda P8ZP_SCRATCH_W2+1
pha
lda P8ZP_SCRATCH_W2
pha
rts
.pend
greater_zero .proc
jsr floats.pop_float_fac1
jsr floats.SIGN
beq equal_zero._false
bpl equal_zero._true
jmp equal_zero._false
.pend
less_zero .proc
jsr floats.pop_float_fac1
jsr floats.SIGN
bmi equal_zero._true
jmp equal_zero._false
.pend
greaterequal_zero .proc
jsr floats.pop_float_fac1
jsr floats.SIGN
bpl equal_zero._true
jmp equal_zero._false
.pend
lessequal_zero .proc
jsr floats.pop_float_fac1
jsr floats.SIGN
beq equal_zero._true
bmi equal_zero._true
jmp equal_zero._false
.pend

5
compiler/res/prog8lib/c64/floats.p8
View File

@ -159,12 +159,9 @@ asmsub GETADRAY () clobbers(X) -> uword @ AY {
sub rndf() -> float {
%asm {{
stx P8ZP_SCRATCH_REG
lda #1
jsr FREADSA
jsr RND ; rng into fac1
ldx P8ZP_SCRATCH_REG
rts
jmp RND ; rng into fac1
}}
}

17
compiler/res/prog8lib/c64/floats_funcs.asm
View File

@ -1,13 +1,6 @@
; --- floating point builtin functions
func_sign_f_stack .proc
jsr func_sign_f_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
func_sign_f_into_A .proc
jsr MOVFM
jmp SIGN
@ -146,17 +139,11 @@ func_all_f_stack .proc
.pend
func_abs_f_into_FAC1 .proc
stx P8ZP_SCRATCH_REG
jsr MOVFM
jsr ABS
ldx P8ZP_SCRATCH_REG
rts
jmp ABS
.pend
func_sqrt_into_FAC1 .proc
stx P8ZP_SCRATCH_REG
jsr MOVFM
jsr SQR
ldx P8ZP_SCRATCH_REG
rts
jmp SQR
.pend

4
compiler/res/prog8lib/c64/graphics.p8
View File

@ -185,7 +185,6 @@ graphics {
lda length
and #7
sta separate_pixels
stx P8ZP_SCRATCH_REG
lsr length+1
ror length
lsr length+1
@ -210,8 +209,7 @@ _modified stx $ffff ; modified
inc _modified+2
+ dey
bne _modified
_zero ldx P8ZP_SCRATCH_REG
_zero
ldy separate_pixels
beq hline_zero2
lda _modified+1

217
compiler/res/prog8lib/c64/syslib.p8
View File

@ -104,34 +104,26 @@ romsub $FFED = SCREEN() -> ubyte @ X, ubyte @ Y ; read number of
romsub $FFF0 = PLOT(ubyte col @ Y, ubyte row @ X, bool dir @ Pc) -> ubyte @ X, ubyte @ Y ; read/set position of cursor on screen. Use txt.plot for a 'safe' wrapper that preserves X.
romsub $FFF3 = IOBASE() -> uword @ XY ; read base address of I/O devices
asmsub STOP2() -> ubyte @A {
asmsub STOP2() clobbers(X) -> ubyte @A {
; -- check if STOP key was pressed, returns true if so. More convenient to use than STOP() because that only sets the carry status flag.
%asm {{
txa
pha
jsr cbm.STOP
beq +
pla
tax
lda #0
rts
+ pla
tax
lda #1
+ lda #1
rts
}}
}
asmsub RDTIM16() -> uword @AY {
asmsub RDTIM16() clobbers(X) -> uword @AY {
; -- like RDTIM() but only returning the lower 16 bits in AY for convenience
%asm {{
stx P8ZP_SCRATCH_REG
jsr cbm.RDTIM
pha
txa
tay
pla
ldx P8ZP_SCRATCH_REG
rts
}}
}
@ -413,10 +405,6 @@ _irq_handler_init
sta IRQ_SCRATCH_ZPWORD2
lda P8ZP_SCRATCH_W2+1
sta IRQ_SCRATCH_ZPWORD2+1
; Set X to the bottom 32 bytes of the evaluation stack, to HOPEFULLY not clobber it.
; This leaves 128-32=96 stack entries for the main program, and 32 stack entries for the IRQ handler.
; We assume IRQ handlers don't contain complex expressions taking up more than that.
ldx #32
cld
rts
@ -742,111 +730,110 @@ cx16 {
; the sixteen virtual 16-bit registers that the CX16 has defined in the zeropage
; they are simulated on the C64 as well but their location in memory is different
; (because there's no room for them in the zeropage)
; they are allocated at the bottom of the eval-stack (should be ample space unless
; you're doing insane nesting of expressions...)
; NOTE: the memory location of these registers can change based on the "-esa" compiler option
&uword r0 = $cf00
&uword r1 = $cf02
&uword r2 = $cf04
&uword r3 = $cf06
&uword r4 = $cf08
&uword r5 = $cf0a
&uword r6 = $cf0c
&uword r7 = $cf0e
&uword r8 = $cf10
&uword r9 = $cf12
&uword r10 = $cf14
&uword r11 = $cf16
&uword r12 = $cf18
&uword r13 = $cf1a
&uword r14 = $cf1c
&uword r15 = $cf1e
; (because there's no room for them in the zeropage in the default configuration)
; Note that when using ZP options that free up more of the zeropage (such as %zeropage kernalsafe)
; there might be enough space to put them there after all, and the compiler will change these addresses!
&uword r0 = $cfe0
&uword r1 = $cfe2
&uword r2 = $cfe4
&uword r3 = $cfe6
&uword r4 = $cfe8
&uword r5 = $cfea
&uword r6 = $cfec
&uword r7 = $cfee
&uword r8 = $cff0
&uword r9 = $cff2
&uword r10 = $cff4
&uword r11 = $cff6
&uword r12 = $cff8
&uword r13 = $cffa
&uword r14 = $cffc
&uword r15 = $cffe
&word r0s = $cf00
&word r1s = $cf02
&word r2s = $cf04
&word r3s = $cf06
&word r4s = $cf08
&word r5s = $cf0a
&word r6s = $cf0c
&word r7s = $cf0e
&word r8s = $cf10
&word r9s = $cf12
&word r10s = $cf14
&word r11s = $cf16
&word r12s = $cf18
&word r13s = $cf1a
&word r14s = $cf1c
&word r15s = $cf1e
&word r0s = $cfe0
&word r1s = $cfe2
&word r2s = $cfe4
&word r3s = $cfe6
&word r4s = $cfe8
&word r5s = $cfea
&word r6s = $cfec
&word r7s = $cfee
&word r8s = $cff0
&word r9s = $cff2
&word r10s = $cff4
&word r11s = $cff6
&word r12s = $cff8
&word r13s = $cffa
&word r14s = $cffc
&word r15s = $cffe
&ubyte r0L = $cf00
&ubyte r1L = $cf02
&ubyte r2L = $cf04
&ubyte r3L = $cf06
&ubyte r4L = $cf08
&ubyte r5L = $cf0a
&ubyte r6L = $cf0c
&ubyte r7L = $cf0e
&ubyte r8L = $cf10
&ubyte r9L = $cf12
&ubyte r10L = $cf14
&ubyte r11L = $cf16
&ubyte r12L = $cf18
&ubyte r13L = $cf1a
&ubyte r14L = $cf1c
&ubyte r15L = $cf1e
&ubyte r0L = $cfe0
&ubyte r1L = $cfe2
&ubyte r2L = $cfe4
&ubyte r3L = $cfe6
&ubyte r4L = $cfe8
&ubyte r5L = $cfea
&ubyte r6L = $cfec
&ubyte r7L = $cfee
&ubyte r8L = $cff0
&ubyte r9L = $cff2
&ubyte r10L = $cff4
&ubyte r11L = $cff6
&ubyte r12L = $cff8
&ubyte r13L = $cffa
&ubyte r14L = $cffc
&ubyte r15L = $cffe
&ubyte r0H = $cf01
&ubyte r1H = $cf03
&ubyte r2H = $cf05
&ubyte r3H = $cf07
&ubyte r4H = $cf09
&ubyte r5H = $cf0b
&ubyte r6H = $cf0d
&ubyte r7H = $cf0f
&ubyte r8H = $cf11
&ubyte r9H = $cf13
&ubyte r10H = $cf15
&ubyte r11H = $cf17
&ubyte r12H = $cf19
&ubyte r13H = $cf1b
&ubyte r14H = $cf1d
&ubyte r15H = $cf1f
&ubyte r0H = $cfe1
&ubyte r1H = $cfe3
&ubyte r2H = $cfe5
&ubyte r3H = $cfe7
&ubyte r4H = $cfe9
&ubyte r5H = $cfeb
&ubyte r6H = $cfed
&ubyte r7H = $cfef
&ubyte r8H = $cff1
&ubyte r9H = $cff3
&ubyte r10H = $cff5
&ubyte r11H = $cff7
&ubyte r12H = $cff9
&ubyte r13H = $cffb
&ubyte r14H = $cffd
&ubyte r15H = $cfff
&byte r0sL = $cf00
&byte r1sL = $cf02
&byte r2sL = $cf04
&byte r3sL = $cf06
&byte r4sL = $cf08
&byte r5sL = $cf0a
&byte r6sL = $cf0c
&byte r7sL = $cf0e
&byte r8sL = $cf10
&byte r9sL = $cf12
&byte r10sL = $cf14
&byte r11sL = $cf16
&byte r12sL = $cf18
&byte r13sL = $cf1a
&byte r14sL = $cf1c
&byte r15sL = $cf1e
&byte r0sL = $cfe0
&byte r1sL = $cfe2
&byte r2sL = $cfe4
&byte r3sL = $cfe6
&byte r4sL = $cfe8
&byte r5sL = $cfea
&byte r6sL = $cfec
&byte r7sL = $cfee
&byte r8sL = $cff0
&byte r9sL = $cff2
&byte r10sL = $cff4
&byte r11sL = $cff6
&byte r12sL = $cff8
&byte r13sL = $cffa
&byte r14sL = $cffc
&byte r15sL = $cffe
&byte r0sH = $cf01
&byte r1sH = $cf03
&byte r2sH = $cf05
&byte r3sH = $cf07
&byte r4sH = $cf09
&byte r5sH = $cf0b
&byte r6sH = $cf0d
&byte r7sH = $cf0f
&byte r8sH = $cf11
&byte r9sH = $cf13
&byte r10sH = $cf15
&byte r11sH = $cf17
&byte r12sH = $cf19
&byte r13sH = $cf1b
&byte r14sH = $cf1d
&byte r15sH = $cf1f
&byte r0sH = $cfe1
&byte r1sH = $cfe3
&byte r2sH = $cfe5
&byte r3sH = $cfe7
&byte r4sH = $cfe9
&byte r5sH = $cfeb
&byte r6sH = $cfed
&byte r7sH = $cfef
&byte r8sH = $cff1
&byte r9sH = $cff3
&byte r10sH = $cff5
&byte r11sH = $cff7
&byte r12sH = $cff9
&byte r13sH = $cffb
&byte r14sH = $cffd
&byte r15sH = $cfff
asmsub save_virtual_registers() clobbers(A,Y) {
%asm {{

69
compiler/res/prog8lib/c64/textio.p8
View File

@ -96,13 +96,12 @@ sub uppercase() {
c64.VMCSB &= ~2
}
asmsub scroll_left (bool alsocolors @ Pc) clobbers(A, Y) {
asmsub scroll_left (bool alsocolors @ Pc) clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character to the left
; contents of the rightmost column are unchanged, you should clear/refill this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -132,17 +131,15 @@ _scroll_screen ; scroll only the screen memory
dey
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_right (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_right (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character to the right
; contents of the leftmost column are unchanged, you should clear/refill this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -168,17 +165,15 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_up (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_up (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character up
; contents of the bottom row are unchanged, you should refill/clear this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -204,17 +199,15 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_down (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_down (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character down
; contents of the top row are unchanged, you should refill/clear this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -240,7 +233,6 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
@ -265,10 +257,9 @@ asmsub print (str text @ AY) clobbers(A,Y) {
}}
}
asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, with left padding 0s (3 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
pha
tya
@ -276,16 +267,13 @@ asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
pla
jsr cbm.CHROUT
txa
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_ub (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
_print_byte_digits
pha
@ -301,16 +289,13 @@ _print_byte_digits
beq _ones
jsr cbm.CHROUT
_ones txa
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_b (byte value @ A) clobbers(A,Y) {
asmsub print_b (byte value @ A) clobbers(A,X,Y) {
; ---- print the byte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
pha
cmp #0
bpl +
@ -322,10 +307,9 @@ asmsub print_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in hex form (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
bcc +
pha
lda #'$'
@ -334,16 +318,13 @@ asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr conv.ubyte2hex
jsr cbm.CHROUT
tya
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
sta P8ZP_SCRATCH_B1
bcc +
lda #'%'
@ -356,12 +337,11 @@ asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr cbm.CHROUT
dey
bne -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
pha
@ -373,7 +353,7 @@ asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in hexadecimal form (4 digits)
; (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
@ -386,10 +366,9 @@ asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub print_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, with left padding 0s (5 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -397,17 +376,14 @@ asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
jsr cbm.CHROUT
iny
bne -
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
asmsub print_uw (uword value @ AY) clobbers(A,Y) {
asmsub print_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldx P8ZP_SCRATCH_REG
ldy #0
- lda conv.uword2decimal.decTenThousands,y
beq _allzero
@ -428,7 +404,7 @@ _allzero
}}
}
asmsub print_w (word value @ AY) clobbers(A,Y) {
asmsub print_w (word value @ AY) clobbers(A,X,Y) {
; ---- print the (signed) word in A/Y in decimal form, without left padding 0's
%asm {{
cpy #0
@ -582,15 +558,10 @@ _colormod sta $ffff ; modified
}}
}
asmsub plot (ubyte col @ Y, ubyte row @ A) clobbers(A) {
; ---- safe wrapper around PLOT kernal routine, to save the X register.
asmsub plot (ubyte col @ Y, ubyte row @ X) {
%asm {{
stx P8ZP_SCRATCH_REG
tax
clc
jsr cbm.PLOT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.PLOT
}}
}

34
compiler/res/prog8lib/conv.p8
View File

@ -8,25 +8,22 @@ conv {
str @shared string_out = "????????????????" ; result buffer for the string conversion routines
asmsub str_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub str_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- convert the ubyte in A in decimal string form, with left padding 0s (3 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
sty string_out
sta string_out+1
stx string_out+2
lda #0
sta string_out+3
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub str_ub (ubyte value @ A) clobbers(A,Y) {
asmsub str_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- convert the ubyte in A in decimal string form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
ldy #0
sty P8ZP_SCRATCH_B1
jsr conv.ubyte2decimal
@ -52,15 +49,13 @@ _output_byte_digits
iny
lda #0
sta string_out,y
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub str_b (byte value @ A) clobbers(A,Y) {
asmsub str_b (byte value @ A) clobbers(A,X,Y) {
; ---- convert the byte in A in decimal string form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
ldy #0
sty P8ZP_SCRATCH_B1
cmp #0
@ -75,7 +70,7 @@ asmsub str_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub str_ubhex (ubyte value @ A) clobbers(A,Y) {
asmsub str_ubhex (ubyte value @ A) clobbers(A,X,Y) {
; ---- convert the ubyte in A in hex string form
%asm {{
jsr conv.ubyte2hex
@ -87,7 +82,7 @@ asmsub str_ubhex (ubyte value @ A) clobbers(A,Y) {
}}
}
asmsub str_ubbin (ubyte value @ A) clobbers(A,Y) {
asmsub str_ubbin (ubyte value @ A) clobbers(A,X,Y) {
; ---- convert the ubyte in A in binary string form
%asm {{
sta P8ZP_SCRATCH_B1
@ -106,7 +101,7 @@ _digit sta string_out,y
}}
}
asmsub str_uwbin (uword value @ AY) clobbers(A,Y) {
asmsub str_uwbin (uword value @ AY) clobbers(A,X,Y) {
; ---- convert the uword in A/Y in binary string form
%asm {{
sta P8ZP_SCRATCH_REG
@ -145,10 +140,9 @@ asmsub str_uwhex (uword value @ AY) clobbers(A,Y) {
}}
}
asmsub str_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub str_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- convert the uword in A/Y in decimal string form, with left padding 0s (5 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -156,15 +150,13 @@ asmsub str_uw0 (uword value @ AY) clobbers(A,Y) {
beq +
iny
bne -
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
asmsub str_uw (uword value @ AY) clobbers(A,Y) {
asmsub str_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- convert the uword in A/Y in decimal string form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldx #0
_output_digits
@ -182,7 +174,6 @@ _gotdigit sta string_out,x
bne _gotdigit
_end lda #0
sta string_out,x
ldx P8ZP_SCRATCH_REG
rts
_allzero lda #'0'
@ -192,12 +183,11 @@ _allzero lda #'0'
}}
}
asmsub str_w (word value @ AY) clobbers(A,Y) {
asmsub str_w (word value @ AY) clobbers(A,X,Y) {
; ---- convert the (signed) word in A/Y in decimal string form, without left padding 0's
%asm {{
cpy #0
bpl str_uw
stx P8ZP_SCRATCH_REG
pha
lda #'-'
sta string_out
@ -700,10 +690,9 @@ asmsub byte2decimal (byte value @A) -> ubyte @Y, ubyte @A, ubyte @X {
}}
}
asmsub ubyte2hex (ubyte value @A) -> ubyte @A, ubyte @Y {
asmsub ubyte2hex (ubyte value @A) clobbers(X) -> ubyte @A, ubyte @Y {
; ---- A to hex petscii string in AY (first hex char in A, second hex char in Y)
%asm {{
stx P8ZP_SCRATCH_REG
pha
and #$0f
tax
@ -715,7 +704,6 @@ asmsub ubyte2hex (ubyte value @A) -> ubyte @A, ubyte @Y {
lsr a
tax
lda _hex_digits,x
ldx P8ZP_SCRATCH_REG
rts
_hex_digits .text "0123456789abcdef" ; can probably be reused for other stuff as well

11
compiler/res/prog8lib/cx16/diskio.p8
View File

@ -490,7 +490,6 @@ io_error:
sta P8ZP_SCRATCH_W1
lda address+1
sta P8ZP_SCRATCH_W1+1
stx P8ZP_SCRATCH_REG
ldx end_address
ldy end_address+1
lda headerless
@ -501,7 +500,6 @@ io_error:
+ lda #<P8ZP_SCRATCH_W1
jsr cbm.SAVE
+ php
ldx P8ZP_SCRATCH_REG
plp
}}
@ -549,7 +547,6 @@ io_error:
secondary |= %00000010 ; activate cx16 kernal headerless load support
cbm.SETLFS(1, drivenumber, secondary)
%asm {{
stx P8ZP_SCRATCH_REG
lda #0
ldx address_override
ldy address_override+1
@ -557,7 +554,7 @@ io_error:
bcs +
stx cx16.r1
sty cx16.r1+1
+ ldx P8ZP_SCRATCH_REG
+
}}
cbm.CLRCHN()
@ -609,14 +606,13 @@ io_error:
return $2000 * (cx16.getrambank() - startbank) + endaddress - startaddress
}
asmsub vload(str name @R0, ubyte bank @A, uword address @R1) -> ubyte @A {
asmsub vload(str name @R0, ubyte bank @A, uword address @R1) clobbers(X, Y) -> ubyte @A {
; -- like the basic command VLOAD "filename",drivenumber,bank,address
; loads a file into Vera's video memory in the given bank:address, returns success in A
; the file has to have the usual 2 byte header (which will be skipped)
%asm {{
clc
internal_vload:
phx
pha
ldx drivenumber
bcc +
@ -644,13 +640,12 @@ internal_vload:
+ jsr cbm.CLRCHN
lda #1
jsr cbm.CLOSE
plx
lda P8ZP_SCRATCH_B1
rts
}}
}
asmsub vload_raw(str name @R0, ubyte bank @A, uword address @R1) -> ubyte @A {
asmsub vload_raw(str name @R0, ubyte bank @A, uword address @R1) clobbers(X, Y) -> ubyte @A {
; -- like the basic command BVLOAD "filename",drivenumber,bank,address
; loads a file into Vera's video memory in the given bank:address, returns success in A
; the file is read fully including the first two bytes.

10
compiler/res/prog8lib/cx16/floats.p8
View File

@ -99,14 +99,11 @@ asmsub FREADSA (byte value @A) clobbers(A,X,Y) {
asmsub GIVUAYFAY (uword value @ AY) clobbers(A,X,Y) {
; ---- unsigned 16 bit word in A/Y (lo/hi) to fac1
%asm {{
phx
sty $c4 ; facmo ($64 on c128)
sta $c5 ; facmo+1 ($65 on c128)
ldx #$90
sec
jsr FLOATC
plx
rts
jmp FLOATC
}}
}
@ -144,11 +141,8 @@ asmsub FREADUY (ubyte value @Y) {
sub rndf() -> float {
%asm {{
phx
lda #1
jsr RND_0
plx
rts
jmp RND_0
}}
}

23
compiler/res/prog8lib/cx16/gfx2.p8
View File

@ -20,8 +20,6 @@
; mode 6 = bitmap 640 x 480 x 4c
; higher color dephts in highres are not supported due to lack of VRAM
; TODO remove the phx/plx pairs in non-stack compiler version
gfx2 {
%option no_symbol_prefixing
@ -223,7 +221,6 @@ _done
position(x, y)
%asm {{
lda color
phx
ldx length+1
beq +
ldy #0
@ -237,7 +234,7 @@ _done
- sta cx16.VERA_DATA0
dey
bne -
+ plx
+
}}
}
6 -> {
@ -262,7 +259,6 @@ _done
sta cx16.VERA_ADDR_L
lda cx16.r0+1
sta cx16.VERA_ADDR_M
phx
ldx x
}}
@ -285,10 +281,6 @@ _done
+ inx ; next pixel
}}
}
%asm {{
plx
}}
}
}
}
@ -923,13 +915,12 @@ skip:
}}
}
asmsub next_pixels(uword pixels @AY, uword amount @R0) clobbers(A, Y) {
asmsub next_pixels(uword pixels @AY, uword amount @R0) clobbers(A, X, Y) {
; -- sets the next bunch of pixels from a prepared array of bytes.
; for 8 bpp screens this will plot 1 pixel per byte.
; for 1 bpp screens it will plot 8 pixels at once (colors are the bit patterns per byte).
; for 2 bpp screens it will plot 4 pixels at once (colors are the bit patterns per byte).
%asm {{
phx
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
ldx cx16.r0+1
@ -951,14 +942,13 @@ skip:
iny
dex
bne -
+ plx
+ rts
}}
}
asmsub set_8_pixels_from_bits(ubyte bits @R0, ubyte oncolor @A, ubyte offcolor @Y) {
asmsub set_8_pixels_from_bits(ubyte bits @R0, ubyte oncolor @A, ubyte offcolor @Y) clobbers(X) {
; this is only useful in 256 color mode where one pixel equals one byte value.
%asm {{
phx
ldx #8
- asl cx16.r0
bcc +
@ -967,7 +957,6 @@ skip:
+ sty cx16.VERA_DATA0
+ dex
bne -
plx
rts
}}
}
@ -999,7 +988,6 @@ skip:
cx16.vaddr_autoincr(charset_bank, chardataptr, 0, 1)
%asm {{
; pre-shift the bits
phx ; TODO remove in non-stack version
lda text.x
and #7
sta P8ZP_SCRATCH_B1
@ -1019,7 +1007,6 @@ skip:
iny
cpy #8
bne --
plx ; TODO remove in non-stack version
}}
; left part of shifted char
position2(x, y, true)
@ -1086,7 +1073,6 @@ skip:
position(x,y)
y++
%asm {{
phx ; TODO remove in non-stack version
ldx color
lda cx16.VERA_DATA1
sta P8ZP_SCRATCH_B1
@ -1098,7 +1084,6 @@ skip:
+ lda cx16.VERA_DATA0 ; don't write a pixel, but do advance to the next address
+ dey
bne -
plx ; TODO remove in non-stack version
}}
}
x+=8

32
compiler/res/prog8lib/cx16/syslib.p8
View File

@ -53,25 +53,21 @@ romsub $FFF3 = IOBASE() -> uword @ XY ; read base addr
; ---- utility
asmsub STOP2() -> ubyte @A {
asmsub STOP2() clobbers(X) -> ubyte @A {
; -- check if STOP key was pressed, returns true if so. More convenient to use than STOP() because that only sets the carry status flag.
%asm {{
phx
jsr cbm.STOP
beq +
plx
lda #0
rts
+ plx
lda #1
+ lda #1
rts
}}
}
asmsub RDTIM16() -> uword @AY {
asmsub RDTIM16() clobbers(X) -> uword @AY {
; -- like RDTIM() but only returning the lower 16 bits in AY for convenience. Also avoids ram bank issue for irqs.
%asm {{
phx
php
sei
jsr cbm.RDTIM
@ -81,7 +77,6 @@ asmsub RDTIM16() -> uword @AY {
txa
tay
pla
plx
rts
}}
}
@ -454,15 +449,12 @@ asmsub mouse_config2(ubyte shape @A) clobbers (A, X, Y) {
}}
}
asmsub mouse_pos() -> ubyte @A {
asmsub mouse_pos() clobbers(X) -> ubyte @A {
; -- short wrapper around mouse_get() kernal routine:
; -- gets the position of the mouse cursor in cx16.r0 and cx16.r1 (x/y coordinate), returns mouse button status.
%asm {{
phx
ldx #cx16.r0
jsr cx16.mouse_get
plx
rts
jmp cx16.mouse_get
}}
}
@ -500,7 +492,7 @@ inline asmsub getrambank() -> ubyte @A {
}}
}
asmsub numbanks() -> uword @AY {
asmsub numbanks() clobbers(X) -> uword @AY {
; -- Returns the number of available RAM banks according to the kernal (each bank is 8 Kb).
; Note that the number of such banks can be 256 so a word is returned.
; But just looking at the A register (the LSB of the result word) could suffice if you know that A=0 means 256 banks:
@ -508,15 +500,13 @@ asmsub numbanks() -> uword @AY {
; Kernal's MEMTOP routine reports 0 in this case but that doesn't mean 'zero banks', instead it means 256 banks,
; as there is no X16 without at least 1 page of banked RAM. So this routine returns 256 instead of 0.
%asm {{
phx
sec
jsr cbm.MEMTOP
ldy #0
cmp #0
bne +
iny
+ plx
rts
+ rts
}}
}
@ -956,10 +946,6 @@ _irq_handler_init
sta IRQ_SCRATCH_ZPWORD2
lda P8ZP_SCRATCH_W2+1
sta IRQ_SCRATCH_ZPWORD2+1
; Set X to the bottom 32 bytes of the evaluation stack, to HOPEFULLY not clobber it.
; This leaves 128-32=96 stack entries for the main program, and 32 stack entries for the IRQ handler.
; We assume IRQ handlers don't contain complex expressions taking up more than that.
ldx #32
cld
rts
@ -1079,19 +1065,17 @@ asmsub set_rasterline(uword line @AY) {
void cx16.i2c_write_byte($42, $05, activity)
}
asmsub wait(uword jiffies @AY) {
asmsub wait(uword jiffies @AY) clobbers(X) {
; --- wait approximately the given number of jiffies (1/60th seconds) (N or N+1)
; note: the system irq handler has to be active for this to work as it depends on the system jiffy clock
; note: this routine cannot be used from inside a irq handler
%asm {{
phx
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
_loop lda P8ZP_SCRATCH_W1
ora P8ZP_SCRATCH_W1+1
bne +
plx
rts
+ sei

93
compiler/res/prog8lib/cx16/textio.p8
View File

@ -42,11 +42,10 @@ asmsub column(ubyte col @A) clobbers(A, X, Y) {
}}
}
asmsub fill_screen (ubyte char @ A, ubyte color @ Y) clobbers(A) {
asmsub fill_screen (ubyte char @ A, ubyte color @ Y) clobbers(A, X) {
; ---- fill the character screen with the given fill character and character color.
%asm {{
sty _ly+1
phx
pha
jsr cbm.SCREEN ; get dimensions in X/Y
txa
@ -75,8 +74,7 @@ _ly ldy #1 ; modified
stz cx16.VERA_ADDR_L
inc cx16.VERA_ADDR_M ; next line
bra _lx
+ plx
rts
+ rts
set_vera_textmatrix_addresses:
stz cx16.VERA_CTRL
@ -90,11 +88,10 @@ set_vera_textmatrix_addresses:
}}
}
asmsub clear_screenchars (ubyte char @ A) clobbers(Y) {
asmsub clear_screenchars (ubyte char @ A) clobbers(X, Y) {
; ---- clear the character screen with the given fill character (leaves colors)
; (assumes screen matrix is at the default address)
%asm {{
phx
pha
jsr cbm.SCREEN ; get dimensions in X/Y
txa
@ -116,16 +113,14 @@ _lx ldx #0 ; modified
stz cx16.VERA_ADDR_L
inc cx16.VERA_ADDR_M ; next line
bra _lx
+ plx
rts
+ rts
}}
}
asmsub clear_screencolors (ubyte color @ A) clobbers(Y) {
asmsub clear_screencolors (ubyte color @ A) clobbers(X, Y) {
; ---- clear the character screen colors with the given color (leaves characters).
; (assumes color matrix is at the default address)
%asm {{
phx
sta _la+1
jsr cbm.SCREEN ; get dimensions in X/Y
txa
@ -150,8 +145,7 @@ _la lda #0 ; modified
sta cx16.VERA_ADDR_L
inc cx16.VERA_ADDR_M ; next line
bra _lx
+ plx
rts
+ rts
}}
}
@ -192,11 +186,10 @@ sub iso_off() {
}
asmsub scroll_left() clobbers(A, Y) {
asmsub scroll_left() clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character to the left
; contents of the rightmost column are unchanged, you should clear/refill this yourself
%asm {{
phx
jsr cbm.SCREEN
dex
stx _lx+1
@ -233,16 +226,14 @@ _lx ldx #0 ; modified
lda #0
sta cx16.VERA_CTRL
plx
rts
}}
}
asmsub scroll_right() clobbers(A,Y) {
asmsub scroll_right() clobbers(A,X,Y) {
; ---- scroll the whole screen 1 character to the right
; contents of the leftmost column are unchanged, you should clear/refill this yourself
%asm {{
phx
jsr cbm.SCREEN
dex
stx _lx+1
@ -287,16 +278,14 @@ _lx ldx #0 ; modified
lda #0
sta cx16.VERA_CTRL
plx
rts
}}
}
asmsub scroll_up() clobbers(A, Y) {
asmsub scroll_up() clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character up
; contents of the bottom row are unchanged, you should refill/clear this yourself
%asm {{
phx
jsr cbm.SCREEN
stx _nextline+1
dey
@ -337,16 +326,14 @@ _nextline
+ lda #0
sta cx16.VERA_CTRL
plx
rts
}}
}
asmsub scroll_down() clobbers(A, Y) {
asmsub scroll_down() clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character down
; contents of the top row are unchanged, you should refill/clear this yourself
%asm {{
phx
jsr cbm.SCREEN
stx _nextline+1
dey
@ -393,7 +380,6 @@ _nextline
+ lda #0
sta cx16.VERA_CTRL
plx
rts
}}
}
@ -418,10 +404,9 @@ asmsub print (str text @ AY) clobbers(A,Y) {
}}
}
asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, with left padding 0s (3 positions total)
%asm {{
phx
jsr conv.ubyte2decimal
pha
tya
@ -429,16 +414,13 @@ asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
pla
jsr cbm.CHROUT
txa
jsr cbm.CHROUT
plx
rts
jmp cbm.CHROUT
}}
}
asmsub print_ub (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, without left padding 0s
%asm {{
phx
jsr conv.ubyte2decimal
_print_byte_digits
pha
@ -454,16 +436,13 @@ _print_byte_digits
beq _ones
jsr cbm.CHROUT
_ones txa
jsr cbm.CHROUT
plx
rts
jmp cbm.CHROUT
}}
}
asmsub print_b (byte value @ A) clobbers(A,Y) {
asmsub print_b (byte value @ A) clobbers(A,X,Y) {
; ---- print the byte in A in decimal form, without left padding 0s
%asm {{
phx
pha
cmp #0
bpl +
@ -475,10 +454,9 @@ asmsub print_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in hex form (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
phx
bcc +
pha
lda #'$'
@ -487,16 +465,13 @@ asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr conv.ubyte2hex
jsr cbm.CHROUT
tya
jsr cbm.CHROUT
plx
rts
jmp cbm.CHROUT
}}
}
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
phx
sta P8ZP_SCRATCH_B1
bcc +
lda #'%'
@ -509,12 +484,11 @@ asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr cbm.CHROUT
dey
bne -
plx
rts
}}
}
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
pha
@ -526,7 +500,7 @@ asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in hexadecimal form (4 digits)
; (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
@ -539,10 +513,9 @@ asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub print_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, with left padding 0s (5 positions total)
%asm {{
phx
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -550,17 +523,14 @@ asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
jsr cbm.CHROUT
iny
bne -
+ plx
rts
+ rts
}}
}
asmsub print_uw (uword value @ AY) clobbers(A,Y) {
asmsub print_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, without left padding 0s
%asm {{
phx
jsr conv.uword2decimal
plx
ldy #0
- lda conv.uword2decimal.decTenThousands,y
beq _allzero
@ -581,7 +551,7 @@ _allzero
}}
}
asmsub print_w (word value @ AY) clobbers(A,Y) {
asmsub print_w (word value @ AY) clobbers(A,X,Y) {
; ---- print the (signed) word in A/Y in decimal form, without left padding 0's
%asm {{
cpy #0
@ -704,12 +674,11 @@ asmsub getclr (ubyte col @A, ubyte row @Y) -> ubyte @ A {
}}
}
sub setcc (ubyte column, ubyte row, ubyte char, ubyte charcolor) {
sub setcc (ubyte column, ubyte row, ubyte char, ubyte charcolor) {
; ---- set char+color at the given position on the screen
; note: color handling is the same as on the C64: it only sets the foreground color and leaves the background color as is.
; Use setcc2 if you want Cx-16 specific feature of setting both Bg+Fg colors (is faster as well).
%asm {{
phx
lda column
asl a
tax
@ -732,7 +701,6 @@ sub setcc (ubyte column, ubyte row, ubyte char, ubyte charcolor) {
and #$f0
ora P8ZP_SCRATCH_B1
sta cx16.VERA_DATA0
plx
rts
}}
}
@ -742,7 +710,6 @@ sub setcc2 (ubyte column, ubyte row, ubyte char, ubyte colors) {
; note: on the CommanderX16 this allows you to set both Fg and Bg colors;
; use the high nybble in A to set the Bg color! Is a bit faster than setcc() too.
%asm {{
phx
lda column
asl a
tax
@ -760,20 +727,14 @@ sub setcc2 (ubyte column, ubyte row, ubyte char, ubyte colors) {
inc cx16.VERA_ADDR_L
lda colors
sta cx16.VERA_DATA0
plx
rts
}}
}
asmsub plot (ubyte col @ Y, ubyte row @ A) clobbers(A) {
; ---- safe wrapper around PLOT kernal routine, to save the X register.
asmsub plot (ubyte col @ Y, ubyte row @ X) {
%asm {{
phx
tax
clc
jsr cbm.PLOT
plx
rts
jmp cbm.PLOT
}}
}

5
compiler/res/prog8lib/diskio.p8
View File

@ -455,13 +455,11 @@ io_error:
sta P8ZP_SCRATCH_W1
lda address+1
sta P8ZP_SCRATCH_W1+1
stx P8ZP_SCRATCH_REG
lda #<P8ZP_SCRATCH_W1
ldx end_address
ldy end_address+1
jsr cbm.SAVE
php
ldx P8ZP_SCRATCH_REG
plp
}}
@ -488,7 +486,6 @@ io_error:
secondary = 0
cbm.SETLFS(1, drivenumber, secondary)
%asm {{
stx P8ZP_SCRATCH_REG
lda #0
ldx address_override
ldy address_override+1
@ -496,7 +493,7 @@ io_error:
bcs +
stx cx16.r1
sty cx16.r1+1
+ ldx P8ZP_SCRATCH_REG
+
}}
cbm.CLRCHN()

61
compiler/res/prog8lib/floats_functions.p8
View File

@ -5,7 +5,6 @@ floats {
sub print_f(float value) {
; ---- prints the floating point value (without a newline).
%asm {{
stx floats_store_reg
lda #<value
ldy #>value
jsr MOVFM ; load float into fac1
@ -18,8 +17,7 @@ sub print_f(float value) {
jsr cbm.CHROUT
iny
bne -
+ ldx floats_store_reg
rts
+ rts
}}
}
@ -44,10 +42,7 @@ sub sin(float angle) -> float {
lda #<angle
ldy #>angle
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr SIN
ldx P8ZP_SCRATCH_REG
rts
jmp SIN
}}
}
@ -56,9 +51,7 @@ sub cos(float angle) -> float {
lda #<angle
ldy #>angle
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr COS
ldx P8ZP_SCRATCH_REG
jmp COS
rts
}}
}
@ -68,10 +61,7 @@ sub tan(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr TAN
ldx P8ZP_SCRATCH_REG
rts
jmp TAN
}}
}
@ -80,10 +70,7 @@ sub atan(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr ATN
ldx P8ZP_SCRATCH_REG
rts
jmp ATN
}}
}
@ -92,10 +79,7 @@ sub ln(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr LOG
ldx P8ZP_SCRATCH_REG
rts
jmp LOG
}}
}
@ -104,15 +88,12 @@ sub log2(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr LOG
jsr MOVEF
lda #<FL_LOG2_const
ldy #>FL_LOG2_const
jsr MOVFM
jsr FDIVT
ldx P8ZP_SCRATCH_REG
rts
jmp FDIVT
}}
}
@ -122,12 +103,9 @@ sub rad(float angle) -> float {
lda #<angle
ldy #>angle
jsr MOVFM
stx P8ZP_SCRATCH_REG
lda #<_pi_div_180
ldy #>_pi_div_180
jsr FMULT
ldx P8ZP_SCRATCH_REG
rts
jmp FMULT
_pi_div_180 .byte 123, 14, 250, 53, 18 ; pi / 180
}}
}
@ -138,11 +116,9 @@ sub deg(float angle) -> float {
lda #<angle
ldy #>angle
jsr MOVFM
stx P8ZP_SCRATCH_REG
lda #<_one_over_pi_div_180
ldy #>_one_over_pi_div_180
jsr FMULT
ldx P8ZP_SCRATCH_REG
jmp FMULT
rts
_one_over_pi_div_180 .byte 134, 101, 46, 224, 211 ; 1 / (pi * 180)
}}
@ -153,11 +129,8 @@ sub round(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr FADDH
jsr INT
ldx P8ZP_SCRATCH_REG
rts
jmp INT
}}
}
@ -166,10 +139,7 @@ sub floor(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr INT
ldx P8ZP_SCRATCH_REG
rts
jmp INT
}}
}
@ -179,7 +149,6 @@ sub ceil(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
ldx #<fmath_float1
ldy #>fmath_float1
jsr MOVMF
@ -192,8 +161,7 @@ sub ceil(float value) -> float {
lda #<FL_ONE_const
ldy #>FL_ONE_const
jsr FADD
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
@ -202,14 +170,11 @@ sub rndseedf(float seed) {
seed = -seed ; make sure fp seed is always negative
%asm {{
stx floats_store_reg
lda #<seed
ldy #>seed
jsr MOVFM ; load float into fac1
lda #-1
jsr floats.RND
ldx floats_store_reg
rts
jmp floats.RND
}}
}

795
compiler/res/prog8lib/math.asm
View File

@ -7,9 +7,6 @@
;
math_store_reg .byte 0 ; temporary storage
multiply_bytes .proc
; -- multiply 2 bytes A and Y, result as byte in A (signed or unsigned)
sta P8ZP_SCRATCH_B1 ; num1
@ -30,7 +27,6 @@ multiply_bytes_into_word .proc
; -- multiply 2 bytes A and Y, result as word in A/Y (unsigned)
sta P8ZP_SCRATCH_B1
sty P8ZP_SCRATCH_REG
stx math_store_reg
lda #0
ldx #8
lsr P8ZP_SCRATCH_B1
@ -43,7 +39,6 @@ multiply_bytes_into_word .proc
bne -
tay
lda P8ZP_SCRATCH_B1
ldx math_store_reg
rts
.pend
@ -55,7 +50,6 @@ multiply_words .proc
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
stx P8ZP_SCRATCH_REG
mult16 lda #0
sta result+2 ; clear upper bits of product
@ -77,7 +71,6 @@ mult16 lda #0
ror result
dex
bne -
ldx P8ZP_SCRATCH_REG
lda result
ldy result+1
rts
@ -124,7 +117,6 @@ divmod_ub_asm .proc
; division by zero will result in quotient = 255 and remainder = original number
sty P8ZP_SCRATCH_REG
sta P8ZP_SCRATCH_B1
stx math_store_reg
lda #0
ldx #8
@ -137,7 +129,6 @@ divmod_ub_asm .proc
dex
bne -
ldy P8ZP_SCRATCH_B1
ldx math_store_reg
rts
.pend
@ -197,7 +188,6 @@ result = dividend ;save memory by reusing divident to store the result
sta _divisor
sty _divisor+1
stx P8ZP_SCRATCH_REG
lda #0 ;preset remainder to 0
sta remainder
sta remainder+1
@ -224,7 +214,6 @@ result = dividend ;save memory by reusing divident to store the result
lda result
ldy result+1
ldx P8ZP_SCRATCH_REG
rts
_divisor .word 0
.pend
@ -257,501 +246,6 @@ b1=*+1
randbyte = randword ; -- 8 bit pseudo random number generator into A (by just reusing randword)
; ----------- optimized multiplications (stack) : ---------
stack_mul_byte_3 .proc
; X + X*2
lda P8ESTACK_LO+1,x
asl a
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_3 .proc
; W*2 + W
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
adc P8ESTACK_HI+1,x
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_5 .proc
; X*4 + X
lda P8ESTACK_LO+1,x
asl a
asl a
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_5 .proc
; W*4 + W
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
adc P8ESTACK_HI+1,x
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_6 .proc
; (X*2 + X)*2
lda P8ESTACK_LO+1,x
asl a
clc
adc P8ESTACK_LO+1,x
asl a
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_6 .proc
; (W*2 + W)*2
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
adc P8ESTACK_HI+1,x
asl P8ESTACK_LO+1,x
rol a
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_7 .proc
; X*8 - X
lda P8ESTACK_LO+1,x
asl a
asl a
asl a
sec
sbc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_7 .proc
; W*8 - W
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
sec
sbc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
sbc P8ESTACK_HI+1,x
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_9 .proc
; X*8 + X
lda P8ESTACK_LO+1,x
asl a
asl a
asl a
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_9 .proc
; W*8 + W
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
adc P8ESTACK_HI+1,x
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_10 .proc
; (X*4 + X)*2
lda P8ESTACK_LO+1,x
asl a
asl a
clc
adc P8ESTACK_LO+1,x
asl a
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_10 .proc
; (W*4 + W)*2
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
adc P8ESTACK_HI+1,x
asl P8ESTACK_LO+1,x
rol a
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_11 .proc
; (X*2 + X)*4 - X
lda P8ESTACK_LO+1,x
asl a
clc
adc P8ESTACK_LO+1,x
asl a
asl a
sec
sbc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
rts
.pend
; mul_word_11 is skipped (too much code)
stack_mul_byte_12 .proc
; (X*2 + X)*4
lda P8ESTACK_LO+1,x
asl a
clc
adc P8ESTACK_LO+1,x
asl a
asl a
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_12 .proc
; (W*2 + W)*4
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
adc P8ESTACK_HI+1,x
asl P8ESTACK_LO+1,x
rol a
asl P8ESTACK_LO+1,x
rol a
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_13 .proc
; (X*2 + X)*4 + X
lda P8ESTACK_LO+1,x
asl a
clc
adc P8ESTACK_LO+1,x
asl a
asl a
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
rts
.pend
; mul_word_13 is skipped (too much code)
stack_mul_byte_14 .proc
; (X*8 - X)*2
lda P8ESTACK_LO+1,x
asl a
asl a
asl a
sec
sbc P8ESTACK_LO+1,x
asl a
sta P8ESTACK_LO+1,x
rts
.pend
; mul_word_14 is skipped (too much code)
stack_mul_byte_15 .proc
; X*16 - X
lda P8ESTACK_LO+1,x
asl a
asl a
asl a
asl a
sec
sbc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_15 .proc
; W*16 - W
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
sec
sbc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
sbc P8ESTACK_HI+1,x
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_20 .proc
; (X*4 + X)*4
lda P8ESTACK_LO+1,x
asl a
asl a
clc
adc P8ESTACK_LO+1,x
asl a
asl a
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_20 .proc
; (W*4 + W)*4
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
adc P8ESTACK_HI+1,x
asl P8ESTACK_LO+1,x
rol a
asl P8ESTACK_LO+1,x
rol a
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_25 .proc
; (X*2 + X)*8 + X
lda P8ESTACK_LO+1,x
asl a
clc
adc P8ESTACK_LO+1,x
asl a
asl a
asl a
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_25 .proc
; W = (W*2 + W) *8 + W
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_W1+1
clc
adc P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_W1
lda P8ZP_SCRATCH_W1+1
adc P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
lda P8ZP_SCRATCH_W1
asl a
rol P8ZP_SCRATCH_W1+1
asl a
rol P8ZP_SCRATCH_W1+1
asl a
rol P8ZP_SCRATCH_W1+1
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_W1+1
adc P8ESTACK_HI+1,x
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_40 .proc
lda P8ESTACK_LO+1,x
and #7
tay
lda mul_byte_40._forties,y
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_40 .proc
; (W*4 + W)*8
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_REG
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_REG
asl a
rol P8ZP_SCRATCH_REG
clc
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_REG
adc P8ESTACK_HI+1,x
asl P8ESTACK_LO+1,x
rol a
asl P8ESTACK_LO+1,x
rol a
asl P8ESTACK_LO+1,x
rol a
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_50 .proc
lda P8ESTACK_LO+1,x
and #7
tay
lda mul_byte_50._fifties, y
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_50 .proc
; W = W * 25 * 2
jsr stack_mul_word_25
asl P8ESTACK_LO+1,x
rol P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_80 .proc
lda P8ESTACK_LO+1,x
and #3
tay
lda mul_byte_80._eighties, y
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_80 .proc
; W = W * 40 * 2
jsr stack_mul_word_40
asl P8ESTACK_LO+1,x
rol P8ESTACK_HI+1,x
rts
.pend
stack_mul_byte_100 .proc
lda P8ESTACK_LO+1,x
and #3
tay
lda mul_byte_100._hundreds, y
sta P8ESTACK_LO+1,x
rts
.pend
stack_mul_word_100 .proc
; W = W * 25 * 4
jsr stack_mul_word_25
asl P8ESTACK_LO+1,x
rol P8ESTACK_HI+1,x
asl P8ESTACK_LO+1,x
rol P8ESTACK_HI+1,x
rts
.pend
stack_mul_word_320 .proc
; stackW = stackLo * 256 + stackLo * 64 (stackHi doesn't matter)
ldy P8ESTACK_LO+1,x
lda #0
sta P8ESTACK_HI+1,x
tya
asl a
rol P8ESTACK_HI+1,x
asl a
rol P8ESTACK_HI+1,x
asl a
rol P8ESTACK_HI+1,x
asl a
rol P8ESTACK_HI+1,x
asl a
rol P8ESTACK_HI+1,x
asl a
rol P8ESTACK_HI+1,x
sta P8ESTACK_LO+1,x
tya
clc
adc P8ESTACK_HI+1,x
sta P8ESTACK_HI+1,x
rts
.pend
stack_mul_word_640 .proc
; stackW = (stackLo * 2 * 320) (stackHi doesn't matter)
asl P8ESTACK_LO+1,x
jmp stack_mul_word_320
.pend
; ----------- optimized multiplications (in-place A (byte) and ?? (word)) : ---------
mul_byte_3 .proc
; A = A + A*2
@ -1252,250 +746,69 @@ mul_word_640 .proc
; ----------- end optimized multiplications -----------
; bit shifts.
; anything below 3 is done inline. anything above 7 is done via other optimizations.
shift_left_w_7 .proc
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_LO+1,x
asl a
rol P8ZP_SCRATCH_B1
_shift6 asl a
rol P8ZP_SCRATCH_B1
_shift5 asl a
rol P8ZP_SCRATCH_B1
_shift4 asl a
rol P8ZP_SCRATCH_B1
_shift3 asl a
rol P8ZP_SCRATCH_B1
asl a
rol P8ZP_SCRATCH_B1
asl a
rol P8ZP_SCRATCH_B1
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_B1
sta P8ESTACK_HI+1,x
rts
.pend
shift_left_w_6 .proc
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_LO+1,x
jmp shift_left_w_7._shift6
.pend
shift_left_w_5 .proc
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_LO+1,x
jmp shift_left_w_7._shift5
.pend
shift_left_w_4 .proc
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_LO+1,x
jmp shift_left_w_7._shift4
.pend
shift_left_w_3 .proc
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_LO+1,x
jmp shift_left_w_7._shift3
.pend
shift_left_w .proc
; -- variable number of shifts left
inx
ldy P8ESTACK_LO,x
bne _shift
rts
_shift asl P8ESTACK_LO+1,x
rol P8ESTACK_HI+1,x
dey
bne _shift
rts
.pend
shift_right_uw .proc
; -- uword variable number of shifts right
inx
ldy P8ESTACK_LO,x
bne _shift
rts
_shift lsr P8ESTACK_HI+1,x
ror P8ESTACK_LO+1,x
dey
bne _shift
rts
.pend
shift_right_uw_7 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_HI+1,x
lsr a
ror P8ZP_SCRATCH_B1
_shift6 lsr a
ror P8ZP_SCRATCH_B1
_shift5 lsr a
ror P8ZP_SCRATCH_B1
_shift4 lsr a
ror P8ZP_SCRATCH_B1
_shift3 lsr a
ror P8ZP_SCRATCH_B1
lsr a
ror P8ZP_SCRATCH_B1
lsr a
ror P8ZP_SCRATCH_B1
sta P8ESTACK_HI+1,x
lda P8ZP_SCRATCH_B1
sta P8ESTACK_LO+1,x
rts
.pend
shift_right_uw_6 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_HI+1,x
jmp shift_right_uw_7._shift6
.pend
shift_right_uw_5 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_HI+1,x
jmp shift_right_uw_7._shift5
.pend
shift_right_uw_4 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_HI+1,x
jmp shift_right_uw_7._shift4
.pend
shift_right_uw_3 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_B1
lda P8ESTACK_HI+1,x
jmp shift_right_uw_7._shift3
.pend
shift_right_w_7 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_W1
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
asl a
ror P8ZP_SCRATCH_W1+1
ror P8ZP_SCRATCH_W1
lda P8ZP_SCRATCH_W1+1
_shift6 asl a
ror P8ZP_SCRATCH_W1+1
ror P8ZP_SCRATCH_W1
lda P8ZP_SCRATCH_W1+1
_shift5 asl a
ror P8ZP_SCRATCH_W1+1
ror P8ZP_SCRATCH_W1
lda P8ZP_SCRATCH_W1+1
_shift4 asl a
ror P8ZP_SCRATCH_W1+1
ror P8ZP_SCRATCH_W1
lda P8ZP_SCRATCH_W1+1
_shift3 asl a
ror P8ZP_SCRATCH_W1+1
ror P8ZP_SCRATCH_W1
lda P8ZP_SCRATCH_W1+1
asl a
ror P8ZP_SCRATCH_W1+1
ror P8ZP_SCRATCH_W1
lda P8ZP_SCRATCH_W1+1
asl a
ror P8ZP_SCRATCH_W1+1
ror P8ZP_SCRATCH_W1
lda P8ZP_SCRATCH_W1
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_W1+1
sta P8ESTACK_HI+1,x
rts
.pend
shift_right_w_6 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_W1
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
jmp shift_right_w_7._shift6
.pend
shift_right_w_5 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_W1
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
jmp shift_right_w_7._shift5
.pend
shift_right_w_4 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_W1
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
jmp shift_right_w_7._shift4
.pend
shift_right_w_3 .proc
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_W1
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
jmp shift_right_w_7._shift3
.pend
shift_right_w .proc
; -- signed word variable number of shifts right
inx
ldy P8ESTACK_LO,x
bne _shift
rts
_shift lda P8ESTACK_HI+1,x
asl a
ror P8ESTACK_HI+1,x
ror P8ESTACK_LO+1,x
dey
bne _shift
rts
.pend
; support for bit shifting that is too large to be unrolled:
lsr_byte_A .proc
; -- lsr signed byte in A times the value in Y (assume >0)
; -- lsr signed byte in A times the value in Y (>1)
cmp #0
bmi _negative
bpl lsr_ubyte_A
- sec
ror a
dey
bne -
rts
.pend
lsr_ubyte_A .proc
; -- lsr unsigned byte in A times the value in Y (>1)
- lsr a
dey
bne -
rts
_negative lsr a
ora #$80
.pend
asl_byte_A .proc
; -- asl any byte in A times the value in Y (>1)
- asl a
dey
bne -
rts
.pend
lsr_word_AY .proc
; -- lsr signed word in AY times the value in X (>1)
cpy #0
bpl lsr_uword_AY
sty P8ZP_SCRATCH_B1
_negative sec
ror P8ZP_SCRATCH_B1
ror a
dex
bne _negative
ldy P8ZP_SCRATCH_B1
rts
.pend
lsr_uword_AY .proc
; -- lsr unsigned word in AY times the value in X (>1)
sty P8ZP_SCRATCH_B1
- lsr P8ZP_SCRATCH_B1
ror a
dex
bne -
ldy P8ZP_SCRATCH_B1
rts
.pend
asl_word_AY .proc
; -- asl any word in AY times the value in X (>1)
sty P8ZP_SCRATCH_B1
- asl a
rol P8ZP_SCRATCH_B1
dex
bne -
ldy P8ZP_SCRATCH_B1
rts
.pend
@ -1525,7 +838,6 @@ tempsq = P8ZP_SCRATCH_B1 ; temp byte for intermediate result
sta numberl
sty numberh
stx P8ZP_SCRATCH_REG
lda #$00 ; clear a
sta squarel ; clear square low byte
@ -1563,7 +875,6 @@ _nosqadd:
lda squarel
ldy squareh
ldx P8ZP_SCRATCH_REG
rts
.pend

87
compiler/res/prog8lib/prog8_funcs.asm
View File

@ -1,20 +1,6 @@
; ---- builtin functions
func_any_b_stack .proc
jsr func_any_b_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
func_all_b_stack .proc
jsr func_all_b_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
func_any_b_into_A .proc
; -- any(array), array in P8ZP_SCRATCH_W1, num bytes in A
sta _cmp_mod+1 ; self-modifying code
@ -49,14 +35,6 @@ func_any_w_into_A .proc
jmp func_any_b_into_A
.pend
func_any_w_stack .proc
asl a
jsr func_any_b_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
func_all_w_into_A .proc
; -- all(warray), array in P8ZP_SCRATCH_W1, num bytes in A
asl a ; times 2 because of word
@ -77,22 +55,6 @@ _cmp_mod cpy #255 ; modified
rts
.pend
func_all_w_stack .proc
jsr func_all_w_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
abs_b_stack .proc
; -- push abs(A) on stack (as unsigned word)
jsr abs_b_into_A
sta P8ESTACK_LO,x
stz P8ESTACK_HI,x
dex
rts
.pend
abs_b_into_A .proc
; -- A = abs(A)
cmp #0
@ -104,16 +66,6 @@ abs_b_into_A .proc
rts
.pend
abs_w_stack .proc
; -- push abs(AY) on stack (as word)
jsr abs_w_into_AY
sta P8ESTACK_LO,x
tya
sta P8ESTACK_HI,x
dex
rts
.pend
abs_w_into_AY .proc
; -- AY = abs(AY)
cpy #0
@ -142,13 +94,6 @@ _neg lda #-1
rts
.pend
func_sign_b_stack .proc
jsr func_sign_b_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
func_sign_ub_into_A .proc
cmp #0
bne _pos
@ -157,13 +102,6 @@ _pos lda #1
rts
.pend
func_sign_ub_stack .proc
jsr func_sign_ub_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
func_sign_uw_into_A .proc
cpy #0
beq _possibly_zero
@ -174,13 +112,6 @@ _possibly_zero cmp #0
rts
.pend
func_sign_uw_stack .proc
jsr func_sign_uw_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
func_sign_w_into_A .proc
cpy #0
beq _possibly_zero
@ -195,26 +126,10 @@ _possibly_zero cmp #0
.pend
func_sign_w_stack .proc
jsr func_sign_w_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
func_sqrt16_stack .proc
jsr func_sqrt16_into_A
sta P8ESTACK_LO,x
dex
rts
.pend
func_sqrt16_into_A .proc
; integer square root from http://6502org.wikidot.com/software-math-sqrt
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
txa
pha
lda #0
sta P8ZP_SCRATCH_B1
sta P8ZP_SCRATCH_REG
@ -237,8 +152,6 @@ func_sqrt16_into_A .proc
rol P8ZP_SCRATCH_REG
dex
bne -
pla
tax
lda P8ZP_SCRATCH_B1
rts
.pend

621
compiler/res/prog8lib/prog8_lib.asm
View File

@ -4,10 +4,8 @@
orig_stackpointer .byte 0 ; stores the Stack pointer register at program start
read_byte_from_address_on_stack .proc
; -- read the byte from the memory address on the top of the stack, return in A (stack remains unchanged)
lda P8ESTACK_LO+1,x
ldy P8ESTACK_HI+1,x
read_byte_from_address_in_AY .proc
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
ldy #0
@ -16,318 +14,16 @@ read_byte_from_address_on_stack .proc
.pend
write_byte_to_address_on_stack .proc
; -- write the byte in A to the memory address on the top of the stack (stack remains unchanged)
ldy P8ESTACK_LO+1,x
sty P8ZP_SCRATCH_W2
ldy P8ESTACK_HI+1,x
write_byte_X_to_address_in_AY .proc
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
ldy #0
txa
sta (P8ZP_SCRATCH_W2),y
rts
.pend
neg_b .proc
lda #0
sec
sbc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
rts
.pend
neg_w .proc
sec
lda #0
sbc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda #0
sbc P8ESTACK_HI+1,x
sta P8ESTACK_HI+1,x
rts
.pend
inv_word .proc
lda P8ESTACK_LO+1,x
eor #255
sta P8ESTACK_LO+1,x
lda P8ESTACK_HI+1,x
eor #255
sta P8ESTACK_HI+1,x
rts
.pend
bitand_b .proc
; -- bitwise and (of 2 bytes)
lda P8ESTACK_LO+2,x
and P8ESTACK_LO+1,x
inx
sta P8ESTACK_LO+1,x
rts
.pend
bitor_b .proc
; -- bitwise or (of 2 bytes)
lda P8ESTACK_LO+2,x
ora P8ESTACK_LO+1,x
inx
sta P8ESTACK_LO+1,x
rts
.pend
bitxor_b .proc
; -- bitwise xor (of 2 bytes)
lda P8ESTACK_LO+2,x
eor P8ESTACK_LO+1,x
inx
sta P8ESTACK_LO+1,x
rts
.pend
bitand_w .proc
; -- bitwise and (of 2 words)
lda P8ESTACK_LO+2,x
and P8ESTACK_LO+1,x
sta P8ESTACK_LO+2,x
lda P8ESTACK_HI+2,x
and P8ESTACK_HI+1,x
sta P8ESTACK_HI+2,x
inx
rts
.pend
bitor_w .proc
; -- bitwise or (of 2 words)
lda P8ESTACK_LO+2,x
ora P8ESTACK_LO+1,x
sta P8ESTACK_LO+2,x
lda P8ESTACK_HI+2,x
ora P8ESTACK_HI+1,x
sta P8ESTACK_HI+2,x
inx
rts
.pend
bitxor_w .proc
; -- bitwise xor (of 2 bytes)
lda P8ESTACK_LO+2,x
eor P8ESTACK_LO+1,x
sta P8ESTACK_LO+2,x
lda P8ESTACK_HI+2,x
eor P8ESTACK_HI+1,x
sta P8ESTACK_HI+2,x
inx
rts
.pend
add_w .proc
; -- push word+word / uword+uword
inx
clc
lda P8ESTACK_LO,x
adc P8ESTACK_LO+1,x
sta P8ESTACK_LO+1,x
lda P8ESTACK_HI,x
adc P8ESTACK_HI+1,x
sta P8ESTACK_HI+1,x
rts
.pend
sub_w .proc
; -- push word-word
inx
sec
lda P8ESTACK_LO+1,x
sbc P8ESTACK_LO,x
sta P8ESTACK_LO+1,x
lda P8ESTACK_HI+1,x
sbc P8ESTACK_HI,x
sta P8ESTACK_HI+1,x
rts
.pend
mul_byte .proc
; -- b*b->b (signed and unsigned)
inx
lda P8ESTACK_LO,x
ldy P8ESTACK_LO+1,x
jsr math.multiply_bytes
sta P8ESTACK_LO+1,x
rts
.pend
mul_word .proc
inx
lda P8ESTACK_LO,x
sta P8ZP_SCRATCH_W1
lda P8ESTACK_HI,x
sta P8ZP_SCRATCH_W1+1
lda P8ESTACK_LO+1,x
ldy P8ESTACK_HI+1,x
jsr math.multiply_words
sta P8ESTACK_LO+1,x
tya
sta P8ESTACK_HI+1,x
rts
.pend
idiv_b .proc
; signed division: use unsigned division and fix sign of result afterwards
inx
lda P8ESTACK_LO,x
eor P8ESTACK_LO+1,x
php ; save sign of result
lda P8ESTACK_LO,x
bpl +
eor #$ff
sec
adc #0 ; make num1 positive
+ tay
inx
lda P8ESTACK_LO,x
bpl +
eor #$ff
sec
adc #0 ; make num2 positive
+ jsr math.divmod_ub_asm
sta _remainder
tya
plp ; get sign of result
bpl +
eor #$ff
sec
adc #0 ; negate result
+ sta P8ESTACK_LO,x
dex
rts
_remainder .byte 0
.pend
idiv_ub .proc
inx
ldy P8ESTACK_LO,x
lda P8ESTACK_LO+1,x
jsr math.divmod_ub_asm
tya
sta P8ESTACK_LO+1,x
rts
.pend
idiv_w .proc
; signed division: use unsigned division and fix sign of result afterwards
lda P8ESTACK_HI+2,x
eor P8ESTACK_HI+1,x
php ; save sign of result
lda P8ESTACK_HI+1,x
bpl +
jsr neg_w ; make value positive
+ inx
lda P8ESTACK_HI+1,x
bpl +
jsr neg_w ; make value positive
+ lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_W1
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
lda P8ESTACK_LO,x
ldy P8ESTACK_HI,x
jsr math.divmod_uw_asm
sta P8ESTACK_LO+1,x
tya
sta P8ESTACK_HI+1,x
plp
bpl +
jmp neg_w ; negate result
+ rts
.pend
idiv_uw .proc
inx
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_W1
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
lda P8ESTACK_LO,x
ldy P8ESTACK_HI,x
jsr math.divmod_uw_asm
sta P8ESTACK_LO+1,x
tya
sta P8ESTACK_HI+1,x
rts
.pend
remainder_ub .proc
inx
ldy P8ESTACK_LO,x ; right operand
lda P8ESTACK_LO+1,x ; left operand
jsr math.divmod_ub_asm
sta P8ESTACK_LO+1,x
rts
.pend
remainder_uw .proc
inx
lda P8ESTACK_LO+1,x
sta P8ZP_SCRATCH_W1
lda P8ESTACK_HI+1,x
sta P8ZP_SCRATCH_W1+1
lda P8ESTACK_LO,x
ldy P8ESTACK_HI,x
jsr math.divmod_uw_asm
lda P8ZP_SCRATCH_W2
sta P8ESTACK_LO+1,x
lda P8ZP_SCRATCH_W2+1
sta P8ESTACK_HI+1,x
rts
.pend
equal_w .proc
; -- are the two words on the stack identical?
lda P8ESTACK_LO+1,x
cmp P8ESTACK_LO+2,x
bne equal_b._equal_b_false
lda P8ESTACK_HI+1,x
cmp P8ESTACK_HI+2,x
bne equal_b._equal_b_false
beq equal_b._equal_b_true
.pend
notequal_b .proc
; -- are the two bytes on the stack different?
lda P8ESTACK_LO+1,x
cmp P8ESTACK_LO+2,x
beq equal_b._equal_b_false
bne equal_b._equal_b_true
.pend
notequal_w .proc
; -- are the two words on the stack different?
lda P8ESTACK_HI+1,x
cmp P8ESTACK_HI+2,x
beq notequal_b
bne equal_b._equal_b_true
.pend
less_ub .proc
lda P8ESTACK_LO+2,x
cmp P8ESTACK_LO+1,x
bcc equal_b._equal_b_true
bcs equal_b._equal_b_false
.pend
less_b .proc
; see http://www.6502.org/tutorials/compare_beyond.html
lda P8ESTACK_LO+2,x
sec
sbc P8ESTACK_LO+1,x
bvc +
eor #$80
+ bmi equal_b._equal_b_true
bpl equal_b._equal_b_false
.pend
reg_less_uw .proc
; AY < P8ZP_SCRATCH_W2?
cpy P8ZP_SCRATCH_W2+1
@ -341,17 +37,6 @@ _true lda #1
rts
.pend
less_uw .proc
lda P8ESTACK_HI+2,x
cmp P8ESTACK_HI+1,x
bcc equal_b._equal_b_true
bne equal_b._equal_b_false
lda P8ESTACK_LO+2,x
cmp P8ESTACK_LO+1,x
bcc equal_b._equal_b_true
bcs equal_b._equal_b_false
.pend
reg_less_w .proc
; -- AY < P8ZP_SCRATCH_W2?
cmp P8ZP_SCRATCH_W2
@ -366,48 +51,6 @@ _true lda #1
rts
.pend
less_w .proc
lda P8ESTACK_LO+2,x
cmp P8ESTACK_LO+1,x
lda P8ESTACK_HI+2,x
sbc P8ESTACK_HI+1,x
bvc +
eor #$80
+ bmi equal_b._equal_b_true
bpl equal_b._equal_b_false
.pend
equal_b .proc
; -- are the two bytes on the stack identical?
lda P8ESTACK_LO+2,x
cmp P8ESTACK_LO+1,x
bne _equal_b_false
_equal_b_true lda #1
_equal_b_store inx
sta P8ESTACK_LO+1,x
rts
_equal_b_false lda #0
beq _equal_b_store
.pend
lesseq_ub .proc
lda P8ESTACK_LO+1,x
cmp P8ESTACK_LO+2,x
bcs equal_b._equal_b_true
bcc equal_b._equal_b_false
.pend
lesseq_b .proc
; see http://www.6502.org/tutorials/compare_beyond.html
lda P8ESTACK_LO+2,x
clc
sbc P8ESTACK_LO+1,x
bvc +
eor #$80
+ bmi equal_b._equal_b_true
bpl equal_b._equal_b_false
.pend
reg_lesseq_uw .proc
; AY <= P8ZP_SCRATCH_W2?
cpy P8ZP_SCRATCH_W2+1
@ -424,17 +67,6 @@ _true lda #1
rts
.pend
lesseq_uw .proc
lda P8ESTACK_HI+1,x
cmp P8ESTACK_HI+2,x
bcc equal_b._equal_b_false
bne equal_b._equal_b_true
lda P8ESTACK_LO+1,x
cmp P8ESTACK_LO+2,x
bcs equal_b._equal_b_true
bcc equal_b._equal_b_false
.pend
reg_lesseq_w .proc
; -- P8ZP_SCRATCH_W2 <= AY ? (note: order different from other routines)
cmp P8ZP_SCRATCH_W2
@ -449,224 +81,6 @@ reg_lesseq_w .proc
rts
.pend
lesseq_w .proc
lda P8ESTACK_LO+1,x
cmp P8ESTACK_LO+2,x
lda P8ESTACK_HI+1,x
sbc P8ESTACK_HI+2,x
bvc +
eor #$80
+ bpl equal_b._equal_b_true
bmi equal_b._equal_b_false
.pend
greater_ub .proc
lda P8ESTACK_LO+2,x
cmp P8ESTACK_LO+1,x
beq equal_b._equal_b_false
bcs equal_b._equal_b_true
bcc equal_b._equal_b_false
.pend
greater_b .proc
; see http://www.6502.org/tutorials/compare_beyond.html
lda P8ESTACK_LO+2,x
clc
sbc P8ESTACK_LO+1,x
bvc +
eor #$80
+ bpl equal_b._equal_b_true
bmi equal_b._equal_b_false
.pend
greater_uw .proc
lda P8ESTACK_HI+1,x
cmp P8ESTACK_HI+2,x
bcc equal_b._equal_b_true
bne equal_b._equal_b_false
lda P8ESTACK_LO+1,x
cmp P8ESTACK_LO+2,x
bcc equal_b._equal_b_true
bcs equal_b._equal_b_false
.pend
greater_w .proc
lda P8ESTACK_LO+1,x
cmp P8ESTACK_LO+2,x
lda P8ESTACK_HI+1,x
sbc P8ESTACK_HI+2,x
bvc +
eor #$80
+ bmi equal_b._equal_b_true
bpl equal_b._equal_b_false
.pend
greatereq_ub .proc
lda P8ESTACK_LO+2,x
cmp P8ESTACK_LO+1,x
bcs equal_b._equal_b_true
bcc equal_b._equal_b_false
.pend
greatereq_b .proc
; see http://www.6502.org/tutorials/compare_beyond.html
lda P8ESTACK_LO+2,x
sec
sbc P8ESTACK_LO+1,x
bvc +
eor #$80
+ bpl equal_b._equal_b_true
bmi equal_b._equal_b_false
.pend
greatereq_uw .proc
lda P8ESTACK_HI+2,x
cmp P8ESTACK_HI+1,x
bcc equal_b._equal_b_false
bne equal_b._equal_b_true
lda P8ESTACK_LO+2,x
cmp P8ESTACK_LO+1,x
bcs equal_b._equal_b_true
bcc equal_b._equal_b_false
.pend
greatereq_w .proc
lda P8ESTACK_LO+2,x
cmp P8ESTACK_LO+1,x
lda P8ESTACK_HI+2,x
sbc P8ESTACK_HI+1,x
bvc +
eor #$80
+ bmi equal_b._equal_b_false
bpl equal_b._equal_b_true
.pend
shiftleft_b .proc
inx
ldy P8ESTACK_LO,x
bne +
rts
+ lda P8ESTACK_LO+1,x
- asl a
dey
bne -
sta P8ESTACK_LO+1,x
rts
.pend
shiftright_b .proc
inx
ldy P8ESTACK_LO,x
bne +
rts
+ lda P8ESTACK_LO+1,x
- lsr a
dey
bne -
sta P8ESTACK_LO+1,x
rts
.pend
equalzero_b .proc
lda P8ESTACK_LO+1,x
beq _true
bne _false
_true lda #1
sta P8ESTACK_LO+1,x
rts
_false lda #0
sta P8ESTACK_LO+1,x
rts
.pend
equalzero_w .proc
lda P8ESTACK_LO+1,x
ora P8ESTACK_HI+1,x
beq equalzero_b._true
bne equalzero_b._false
.pend
notequalzero_b .proc
lda P8ESTACK_LO+1,x
beq equalzero_b._false
bne equalzero_b._true
.pend
notequalzero_w .proc
lda P8ESTACK_LO+1,x
ora P8ESTACK_HI+1,x
beq equalzero_b._false
bne equalzero_b._true
.pend
lesszero_b .proc
lda P8ESTACK_LO+1,x
bmi equalzero_b._true
jmp equalzero_b._false
.pend
lesszero_w .proc
lda P8ESTACK_HI+1,x
bmi equalzero_b._true
jmp equalzero_b._false
.pend
greaterzero_ub .proc
lda P8ESTACK_LO+1,x
bne equalzero_b._true
beq equalzero_b._false
.pend
greaterzero_sb .proc
lda P8ESTACK_LO+1,x
beq equalzero_b._false
bpl equalzero_b._true
bmi equalzero_b._false
.pend
greaterzero_uw .proc
lda P8ESTACK_LO+1,x
ora P8ESTACK_HI+1,x
bne equalzero_b._true
beq equalzero_b._false
.pend
greaterzero_sw .proc
lda P8ESTACK_HI+1,x
bmi equalzero_b._false
ora P8ESTACK_LO+1,x
beq equalzero_b._false
bne equalzero_b._true
.pend
lessequalzero_sb .proc
lda P8ESTACK_LO+1,x
bmi equalzero_b._true
beq equalzero_b._true
bne equalzero_b._false
.pend
lessequalzero_sw .proc
lda P8ESTACK_HI+1,x
bmi equalzero_b._true
ora P8ESTACK_LO+1,x
beq equalzero_b._true
bne equalzero_b._false
.pend
greaterequalzero_sb .proc
lda P8ESTACK_LO+1,x
bpl equalzero_b._true
bmi equalzero_b._false
.pend
greaterequalzero_sw .proc
lda P8ESTACK_HI+1,x
bpl equalzero_b._true
bmi equalzero_b._false
.pend
memcopy16_up .proc
; -- copy memory UP from (P8ZP_SCRATCH_W1) to (P8ZP_SCRATCH_W2) of length X/Y (16-bit, X=lo, Y=hi)
@ -996,21 +410,6 @@ _arg_s1 .word 0
_arg_s2 .word 0
.pend
strcmp_stack .proc
; -- compare strings, both on stack.
; Returns -1,0,1 in A, depeding on the ordering. Clobbers Y.
inx
lda P8ESTACK_LO,x
ldy P8ESTACK_HI,x
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
inx
lda P8ESTACK_LO,x
ldy P8ESTACK_HI,x
jmp strcmp_mem
.pend
strcmp_mem .proc
; -- compares strings in s1 (AY) and s2 (P8ZP_SCRATCH_W2).
; Returns -1,0,1 in A, depeding on the ordering. Clobbers Y.
@ -1041,16 +440,6 @@ _return_minusone
.pend
sign_extend_stack_byte .proc
; -- sign extend the (signed) byte on the stack to full 16 bits
lda P8ESTACK_LO+1,x
ora #$7f
bmi +
lda #0
+ sta P8ESTACK_HI+1,x
rts
.pend
strlen .proc
; -- returns the number of bytes in the string in AY, in Y.
sta P8ZP_SCRATCH_W1

2
compiler/res/prog8lib/string.p8
View File

@ -282,7 +282,6 @@ _done rts
str = P8ZP_SCRATCH_W1
stx P8ZP_SCRATCH_REG
sta str
sty str+1
lda cx16.r0
@ -294,7 +293,6 @@ str = P8ZP_SCRATCH_W1
jsr _match
lda #0
rol a
ldx P8ZP_SCRATCH_REG
rts

13
compiler/res/prog8lib/test_stack.p8
View File

@ -1,4 +1,4 @@
; utility debug code to print the X (evalstack) and SP (cpu stack) registers.
; utility debug code to print the SP (cpu stack pointer) register.
%import textio
@ -7,7 +7,6 @@ test_stack {
asmsub test() {
%asm {{
stx _saveX
lda #13
jsr txt.chrout
lda #'-'
@ -17,14 +16,6 @@ test_stack {
bne -
lda #13
jsr txt.chrout
lda #'x'
jsr txt.chrout
lda #'='
jsr txt.chrout
lda _saveX
jsr txt.print_ub
lda #' '
jsr txt.chrout
lda #'s'
jsr txt.chrout
lda #'p'
@ -43,9 +34,7 @@ test_stack {
bne -
lda #13
jsr txt.chrout
ldx _saveX
rts
_saveX .byte 0
}}
}
}

29
compiler/src/prog8/CompilerMain.kt
View File

@ -3,7 +3,6 @@ package prog8
import kotlinx.cli.*
import prog8.ast.base.AstException
import prog8.code.core.CbmPrgLauncherType
import prog8.code.core.toHex
import prog8.code.target.*
import prog8.code.target.virtual.VirtualMachineDefinition
import prog8.compiler.CompilationResult
@ -39,16 +38,13 @@ private fun compileMain(args: Array<String>): Boolean {
val cli = ArgParser("prog8compiler", prefixStyle = ArgParser.OptionPrefixStyle.JVM)
val asmListfile by cli.option(ArgType.Boolean, fullName = "asmlist", description = "make the assembler produce a listing file as well")
val symbolDefs by cli.option(ArgType.String, fullName = "D", description = "define assembly symbol(s) with -D SYMBOL=VALUE").multiple()
val evalStackAddrString by cli.option(ArgType.String, fullName = "esa", description = "override the eval-stack base address (must be page aligned)")
val startEmulator1 by cli.option(ArgType.Boolean, fullName = "emu", description = "auto-start emulator after successful compilation")
val startEmulator2 by cli.option(ArgType.Boolean, fullName = "emu2", description = "auto-start alternative emulator after successful compilation")
val experimentalCodegen by cli.option(ArgType.Boolean, fullName = "expericodegen", description = "use experimental/alternative codegen")
val dontWriteAssembly by cli.option(ArgType.Boolean, fullName = "noasm", description="don't create assembly code")
val dontOptimize by cli.option(ArgType.Boolean, fullName = "noopt", description = "don't perform any optimizations")
val outputDir by cli.option(ArgType.String, fullName = "out", description = "directory for output files instead of current directory").default(".")
val optimizeFloatExpressions by cli.option(ArgType.Boolean, fullName = "optfloatx", description = "optimize float expressions (warning: can increase program size)")
val quietAssembler by cli.option(ArgType.Boolean, fullName = "quietasm", description = "don't print assembler output results")
val slowCodegenWarnings by cli.option(ArgType.Boolean, fullName = "slowwarn", description="show debug warnings about slow/problematic assembly code generation")
val sourceDirs by cli.option(ArgType.String, fullName="srcdirs", description = "list of extra paths, separated with ${File.pathSeparator}, to search in for imported modules").multiple().delimiter(File.pathSeparator)
val compilationTarget by cli.option(ArgType.String, fullName = "target", description = "target output of the compiler (one of '${C64Target.NAME}', '${C128Target.NAME}', '${Cx16Target.NAME}', '${AtariTarget.NAME}', '${VMTarget.NAME}') (required)")
val startVm by cli.option(ArgType.Boolean, fullName = "vm", description = "load and run a .p8ir IR source file in the VM")
@ -101,25 +97,6 @@ private fun compileMain(args: Array<String>): Boolean {
return runVm(moduleFiles.first())
}
var evalStackAddr: UInt? = null
if(evalStackAddrString!=null) {
try {
evalStackAddr = if (evalStackAddrString!!.startsWith("0x"))
evalStackAddrString!!.substring(2).toUInt(16)
else if (evalStackAddrString!!.startsWith("$"))
evalStackAddrString!!.substring(1).toUInt(16)
else
evalStackAddrString!!.toUInt()
} catch(nx: NumberFormatException) {
System.err.println("invalid address for evalstack: $evalStackAddrString")
return false
}
if(evalStackAddr !in 256u..65536u-512u || (evalStackAddr and 255u != 0u)) {
System.err.println("invalid address for evalstack: ${evalStackAddr.toHex()}")
return false
}
}
val processedSymbols = processSymbolDefs(symbolDefs) ?: return false
if(watchMode==true) {
@ -134,15 +111,12 @@ private fun compileMain(args: Array<String>): Boolean {
val compilerArgs = CompilerArguments(
filepath,
dontOptimize != true,
optimizeFloatExpressions == true,
dontWriteAssembly != true,
slowCodegenWarnings == true,
quietAssembler == true,
asmListfile == true,
experimentalCodegen == true,
varsHighBank,
compilationTarget!!,
evalStackAddr,
splitWordArrays == true,
processedSymbols,
srcdirs,
@ -203,15 +177,12 @@ private fun compileMain(args: Array<String>): Boolean {
val compilerArgs = CompilerArguments(
filepath,
dontOptimize != true,
optimizeFloatExpressions == true,
dontWriteAssembly != true,
slowCodegenWarnings == true,
quietAssembler == true,
asmListfile == true,
experimentalCodegen == true,
varsHighBank,
compilationTarget!!,
evalStackAddr,
splitWordArrays == true,
processedSymbols,
srcdirs,

12
compiler/src/prog8/buildversion/BuildVersion.kt
View File

@ -6,10 +6,10 @@ package prog8.buildversion
const val MAVEN_GROUP = "prog8"
const val MAVEN_NAME = "compiler"
const val VERSION = "9.2-SNAPSHOT"
const val GIT_REVISION = 3964
const val GIT_SHA = "aaa30e4a583fa7c8da61998cf7cbb2a60b52afb0"
const val GIT_DATE = "2023-07-16T21:16:18Z"
const val GIT_BRANCH = "master"
const val BUILD_DATE = "2023-07-16T21:16:23Z"
const val BUILD_UNIX_TIME = 1689542183583L
const val GIT_REVISION = 3980
const val GIT_SHA = "9f247901d484ca36d047cdcf77f5b905ba772f82"
const val GIT_DATE = "2023-07-16T21:45:04Z"
const val GIT_BRANCH = "remove_evalstack"
const val BUILD_DATE = "2023-07-17T23:11:43Z"
const val BUILD_UNIX_TIME = 1689635503506L
const val DIRTY = 1

19
compiler/src/prog8/compiler/Compiler.kt
View File

@ -29,15 +29,12 @@ class CompilationResult(val compilerAst: Program, // deprecated, use codegenAs
class CompilerArguments(val filepath: Path,
val optimize: Boolean,
val optimizeFloatExpressions: Boolean,
val writeAssembly: Boolean,
val slowCodegenWarnings: Boolean,
val quietAssembler: Boolean,
val asmListfile: Boolean,
val experimentalCodegen: Boolean,
val varsHighBank: Int?,
val compilationTarget: String,
val evalStackBaseAddress: UInt?,
val splitWordArrays: Boolean,
val symbolDefs: Map<String, String>,
val sourceDirs: List<String> = emptyList(),
@ -49,8 +46,6 @@ fun compileProgram(args: CompilerArguments): CompilationResult? {
lateinit var program: Program
lateinit var importedFiles: List<Path>
val optimizeFloatExpr = if(args.optimize) args.optimizeFloatExpressions else false
val compTarget =
when(args.compilationTarget) {
C64Target.NAME -> C64Target()
@ -70,14 +65,11 @@ fun compileProgram(args: CompilerArguments): CompilationResult? {
compilationOptions = options
with(compilationOptions) {
slowCodegenWarnings = args.slowCodegenWarnings
optimize = args.optimize
optimizeFloatExpressions = optimizeFloatExpr
asmQuiet = args.quietAssembler
asmListfile = args.asmListfile
experimentalCodegen = args.experimentalCodegen
varsHighBank = args.varsHighBank
evalStackBaseAddress = args.evalStackBaseAddress
splitWordArrays = args.splitWordArrays
outputDir = args.outputDir.normalize()
symbolDefs = args.symbolDefs
@ -85,10 +77,6 @@ fun compileProgram(args: CompilerArguments): CompilationResult? {
program = programresult
importedFiles = imported
if(compilationOptions.evalStackBaseAddress!=null) {
compTarget.machine.overrideEvalStack(compilationOptions.evalStackBaseAddress!!)
}
processAst(program, args.errors, compilationOptions)
if (compilationOptions.optimize) {
// println("*********** COMPILER AST RIGHT BEFORE OPTIMIZING *************")
@ -367,12 +355,11 @@ private fun optimizeAst(program: Program, compilerOptions: CompilationOptions, e
while (true) {
// keep optimizing expressions and statements until no more steps remain
val optsDone1 = program.simplifyExpressions(errors, compTarget)
val optsDone2 = program.splitBinaryExpressions(compilerOptions)
val optsDone3 = program.optimizeStatements(errors, functions, compilerOptions)
val optsDone4 = program.inlineSubroutines(compilerOptions)
val optsDone2 = program.optimizeStatements(errors, functions, compilerOptions)
val optsDone3 = program.inlineSubroutines(compilerOptions)
program.constantFold(errors, compTarget) // because simplified statements and expressions can result in more constants that can be folded away
errors.report()
if (optsDone1 + optsDone2 + optsDone3 + optsDone4 == 0)
if (optsDone1 + optsDone2 + optsDone3 == 0)
break
}
val remover2 = UnusedCodeRemover(program, errors, compTarget)

5
compiler/src/prog8/compiler/astprocessing/AstExtensions.kt
View File

@ -27,7 +27,7 @@ internal fun Program.processAstBeforeAsmGeneration(compilerOptions: CompilationO
boolRemover.visit(this)
boolRemover.applyModifications()
val fixer = BeforeAsmAstChanger(this, compilerOptions, errors)
val fixer = BeforeAsmAstChanger(this, compilerOptions)
fixer.visit(this)
while (errors.noErrors() && fixer.applyModifications() > 0) {
fixer.visit(this)
@ -108,9 +108,6 @@ internal fun Program.checkIdentifiers(errors: IErrorReporter, options: Compilati
checker2.visit(this)
if(errors.noErrors()) {
val transforms = AstOnetimeTransforms(this, options)
transforms.visit(this)
transforms.applyModifications()
val lit2decl = LiteralsToAutoVars(this, options.compTarget, errors)
lit2decl.visit(this)
if(errors.noErrors())

62
compiler/src/prog8/compiler/astprocessing/AstOnetimeTransforms.kt
View File

@ -1,62 +0,0 @@
package prog8.compiler.astprocessing
import prog8.ast.Node
import prog8.ast.Program
import prog8.ast.expressions.*
import prog8.ast.statements.AssignTarget
import prog8.ast.statements.Assignment
import prog8.ast.statements.DirectMemoryWrite
import prog8.ast.statements.VarDecl
import prog8.ast.walk.AstWalker
import prog8.ast.walk.IAstModification
import prog8.code.core.CompilationOptions
import prog8.code.core.DataType
import prog8.code.target.VMTarget
internal class AstOnetimeTransforms(private val program: Program, private val options: CompilationOptions) : AstWalker() {
override fun after(arrayIndexedExpression: ArrayIndexedExpression, parent: Node): Iterable<IAstModification> {
if(parent !is VarDecl) {
if(options.compTarget.name == VMTarget.NAME)
return noModifications // vm codegen deals correctly with all cases
// Don't replace the initializer value in a vardecl - this will be moved to a separate
// assignment statement soon in after(VarDecl)
return replacePointerVarIndexWithMemreadOrMemwrite(arrayIndexedExpression, parent)
}
return noModifications
}
private fun replacePointerVarIndexWithMemreadOrMemwrite(arrayIndexedExpression: ArrayIndexedExpression, parent: Node): Iterable<IAstModification> {
// note: The CodeDesugarer already does something similar, but that is meant ONLY to take
// into account the case where the index value is a word type.
// The replacement here is to fix missing cases in the 6502 codegen. (VM codegen doesn't use this workaround)
// TODO make the 6502 codegen better so this workaround can be removed
val arrayVar = arrayIndexedExpression.arrayvar.targetVarDecl(program)
if(arrayVar!=null && arrayVar.datatype == DataType.UWORD) {
if(parent is AssignTarget) {
val assignment = parent.parent as? Assignment
if(assignment?.value is NumericLiteral || assignment?.value is IdentifierReference) {
// the codegen contains correct optimized code ONLY for a constant assignment, or direct variable assignment.
return noModifications
}
// Other cases aren't covered correctly by the 6502 codegen, and there are a LOT of cases.
// So rewrite assignment target pointervar[index] into @(pointervar+index)
// (the 6502 codegen covers all cases correctly for a direct memory assignment).
val indexer = arrayIndexedExpression.indexer
val add: Expression =
if(indexer.indexExpr.constValue(program)?.number==0.0)
arrayIndexedExpression.arrayvar.copy()
else
BinaryExpression(arrayIndexedExpression.arrayvar.copy(), "+", indexer.indexExpr, arrayIndexedExpression.position)
val memwrite = DirectMemoryWrite(add, arrayIndexedExpression.position)
val newtarget = AssignTarget(null, null, memwrite, arrayIndexedExpression.position)
return listOf(IAstModification.ReplaceNode(parent, newtarget, parent.parent))
}
}
return noModifications
}
}

7
compiler/src/prog8/compiler/astprocessing/AstPreprocessor.kt
View File

@ -9,8 +9,6 @@ import prog8.ast.walk.AstWalker
import prog8.ast.walk.IAstModification
import prog8.code.core.*
import prog8.code.target.C64Target
import prog8.code.target.Cx16Target
import prog8.code.target.VMTarget
class AstPreprocessor(val program: Program,
@ -25,15 +23,10 @@ class AstPreprocessor(val program: Program,
relocateCx16VirtualRegisters(program, 0x0004u)
}
}
else if(options.compTarget.name !in setOf(Cx16Target.NAME, VMTarget.NAME)) {
relocateCx16VirtualRegisters(program, options.compTarget.machine.ESTACK_HI)
}
return noModifications
}
private fun relocateCx16VirtualRegisters(program: Program, baseAddress: UInt) {
// reset the address of the virtual registers to be inside the evaluation stack.
// (we don't do this on CommanderX16 itself as the registers have a fixed location in Zeropage there)
val cx16block = program.allBlocks.single { it.name == "cx16" }
val memVars = cx16block.statements
.filterIsInstance<VarDecl>()

51
compiler/src/prog8/compiler/astprocessing/BeforeAsmAstChanger.kt
View File

@ -9,14 +9,10 @@ import prog8.ast.getTempVar
import prog8.ast.statements.*
import prog8.ast.walk.AstWalker
import prog8.ast.walk.IAstModification
import prog8.ast.walk.IAstVisitor
import prog8.code.core.*
import prog8.code.target.VMTarget
internal class BeforeAsmAstChanger(val program: Program,
private val options: CompilationOptions,
private val errors: IErrorReporter
) : AstWalker() {
internal class BeforeAsmAstChanger(val program: Program, private val options: CompilationOptions) : AstWalker() {
override fun before(breakStmt: Break, parent: Node): Iterable<IAstModification> {
throw InternalCompilerException("break should have been replaced by goto $breakStmt")
@ -56,9 +52,6 @@ internal class BeforeAsmAstChanger(val program: Program,
&& !assignment.target.isIOAddress(options.compTarget.machine)) {
val binExpr = assignment.value as? BinaryExpression
if(binExpr!=null && binExpr.inferType(program) istype DataType.FLOAT && !options.optimizeFloatExpressions)
return noModifications
if (binExpr != null && binExpr.operator !in ComparisonOperators) {
if (binExpr.left !is BinaryExpression) {
if (binExpr.right.referencesIdentifier(assignment.target.identifier!!.nameInSource)) {
@ -222,12 +215,6 @@ internal class BeforeAsmAstChanger(val program: Program,
override fun after(arrayIndexedExpression: ArrayIndexedExpression, parent: Node): Iterable<IAstModification> {
if(options.compTarget.name!=VMTarget.NAME) { // don't apply this optimization/check for Vm target
val containingStatement = getContainingStatement(arrayIndexedExpression)
if(getComplexArrayIndexedExpressions(containingStatement).size > 1) {
errors.err("it's not possible to use more than one complex array indexing expression in a single statement; break it up via a temporary variable for instance", containingStatement.position)
return noModifications
}
val index = arrayIndexedExpression.indexer.indexExpr
if (index !is NumericLiteral && index !is IdentifierReference) {
// replace complex indexing expression with a temp variable to hold the computed index first
@ -238,42 +225,6 @@ internal class BeforeAsmAstChanger(val program: Program,
return noModifications
}
private fun getComplexArrayIndexedExpressions(stmt: Statement): List<ArrayIndexedExpression> {
class Searcher : IAstVisitor {
val complexArrayIndexedExpressions = mutableListOf<ArrayIndexedExpression>()
override fun visit(arrayIndexedExpression: ArrayIndexedExpression) {
val ix = arrayIndexedExpression.indexer.indexExpr
if(ix !is NumericLiteral && ix !is IdentifierReference)
complexArrayIndexedExpressions.add(arrayIndexedExpression)
}
override fun visit(branch: ConditionalBranch) {}
override fun visit(forLoop: ForLoop) {}
override fun visit(ifElse: IfElse) {
ifElse.condition.accept(this)
}
override fun visit(untilLoop: UntilLoop) {
untilLoop.condition.accept(this)
}
}
val searcher = Searcher()
stmt.accept(searcher)
return searcher.complexArrayIndexedExpressions
}
private fun getContainingStatement(expression: Expression): Statement {
var node: Node = expression
while(node !is Statement)
node = node.parent
return node
}
private fun getAutoIndexerVarFor(expr: ArrayIndexedExpression): MutableList<IAstModification> {
val modifications = mutableListOf<IAstModification>()
val statement = expr.containingStatement

2
compiler/test/TestAstChecks.kt
View File

@ -11,7 +11,7 @@ import prog8tests.helpers.compileText
class TestAstChecks: FunSpec({
test("conditional expression w/float works even without tempvar to split it") {
test("conditional expression w/float works") {
val text = """
%import floats
main {

3
compiler/test/TestCompilerOnExamples.kt
View File

@ -26,15 +26,12 @@ private fun compileTheThing(filepath: Path, optimize: Boolean, target: ICompilat
val args = CompilerArguments(
filepath,
optimize,
optimizeFloatExpressions = true,
writeAssembly = true,
slowCodegenWarnings = false,
quietAssembler = true,
asmListfile = false,
experimentalCodegen = false,
varsHighBank = null,
compilationTarget = target.name,
evalStackBaseAddress = null,
splitWordArrays = false,
symbolDefs = emptyMap(),
outputDir = outputDir

3
compiler/test/TestCompilerOptionLibdirs.kt
View File

@ -43,15 +43,12 @@ class TestCompilerOptionSourcedirs: FunSpec({
val args = CompilerArguments(
filepath = filePath,
optimize = false,
optimizeFloatExpressions = false,
writeAssembly = true,
slowCodegenWarnings = false,
quietAssembler = true,
asmListfile = false,
experimentalCodegen = false,
varsHighBank = null,
compilationTarget = Cx16Target.NAME,
evalStackBaseAddress = null,
splitWordArrays = false,
symbolDefs = emptyMap(),
sourceDirs,

97
compiler/test/TestOptimization.kt
View File

@ -120,36 +120,31 @@ class TestOptimization: FunSpec({
// load_location = 12345
// word llw
// llw = 12345
// cx16.r0 = load_location
// cx16.r0 += 10000
// cx16.r2 = load_location
// cx16.r2 += 10000
// cx16.r4 = load_location
// cx16.r4 += 22
// cx16.r5s = llw
// cx16.r5s -= 1899
// cx16.r7s = llw
// cx16.r7s += 99
// cx16.r0 = load_location + 10000
// cx16.r2 = load_location + 10000
// cx16.r4 = load_location + 22
// cx16.r5s = llw - 1899
// cx16.r7s = llw + 99
val stmts = result.compilerAst.entrypoint.statements
stmts.size shouldBe 14
stmts.size shouldBe 9
val addR0value = (stmts[5] as Assignment).value
val addR0value = (stmts[4] as Assignment).value
val binexpr0 = addR0value as BinaryExpression
binexpr0.operator shouldBe "+"
binexpr0.right shouldBe NumericLiteral(DataType.UWORD, 10000.0, Position.DUMMY)
val addR2value = (stmts[7] as Assignment).value
val addR2value = (stmts[5] as Assignment).value
val binexpr2 = addR2value as BinaryExpression
binexpr2.operator shouldBe "+"
binexpr2.right shouldBe NumericLiteral(DataType.UWORD, 10000.0, Position.DUMMY)
val addR4value = (stmts[9] as Assignment).value
val addR4value = (stmts[6] as Assignment).value
val binexpr4 = addR4value as BinaryExpression
binexpr4.operator shouldBe "+"
binexpr4.right shouldBe NumericLiteral(DataType.UWORD, 22.0, Position.DUMMY)
val subR5value = (stmts[11] as Assignment).value
val subR5value = (stmts[7] as Assignment).value
val binexpr5 = subR5value as BinaryExpression
binexpr5.operator shouldBe "-"
binexpr5.right shouldBe NumericLiteral(DataType.UWORD, 1899.0, Position.DUMMY)
val subR7value = (stmts[13] as Assignment).value
val subR7value = (stmts[8] as Assignment).value
val binexpr7 = subR7value as BinaryExpression
binexpr7.operator shouldBe "+"
binexpr7.right shouldBe NumericLiteral(DataType.UWORD, 99.0, Position.DUMMY)
@ -171,44 +166,34 @@ class TestOptimization: FunSpec({
// expected:
// word llw
// llw = 300
// cx16.r0s = llw
// cx16.r0s *= 180
// cx16.r1s = llw
// cx16.r1s *= 180
// cx16.r2s = llw
// cx16.r2s /= 90
// cx16.r3s = llw
// cx16.r3s *= 5
// cx16.r4s = llw
// cx16.r4s *= 90
// cx16.r4s /= 5
// cx16.r0s = llw * 180
// cx16.r1s = llw * 180
// cx16.r2s = llw / 90
// cx16.r3s = llw * 5
// cx16.r4s = llw * 90 / 5
val stmts = result.compilerAst.entrypoint.statements
stmts.size shouldBe 13
stmts.size shouldBe 7
val mulR0Value = (stmts[3] as Assignment).value
val mulR0Value = (stmts[2] as Assignment).value
val binexpr0 = mulR0Value as BinaryExpression
binexpr0.operator shouldBe "*"
binexpr0.right shouldBe NumericLiteral(DataType.UWORD, 180.0, Position.DUMMY)
val mulR1Value = (stmts[5] as Assignment).value
val mulR1Value = (stmts[3] as Assignment).value
val binexpr1 = mulR1Value as BinaryExpression
binexpr1.operator shouldBe "*"
binexpr1.right shouldBe NumericLiteral(DataType.UWORD, 180.0, Position.DUMMY)
val divR2Value = (stmts[7] as Assignment).value
val divR2Value = (stmts[4] as Assignment).value
val binexpr2 = divR2Value as BinaryExpression
binexpr2.operator shouldBe "/"
binexpr2.right shouldBe NumericLiteral(DataType.UWORD, 90.0, Position.DUMMY)
val mulR3Value = (stmts[9] as Assignment).value
val mulR3Value = (stmts[5] as Assignment).value
val binexpr3 = mulR3Value as BinaryExpression
binexpr3.operator shouldBe "*"
binexpr3.right shouldBe NumericLiteral(DataType.UWORD, 5.0, Position.DUMMY)
val mulR4Value = (stmts[11] as Assignment).value
val mulR4Value = (stmts[6] as Assignment).value
val binexpr4 = mulR4Value as BinaryExpression
binexpr4.operator shouldBe "*"
binexpr4.right shouldBe NumericLiteral(DataType.UWORD, 90.0, Position.DUMMY)
val divR4Value = (stmts[12] as Assignment).value
val binexpr4b = divR4Value as BinaryExpression
binexpr4b.operator shouldBe "/"
binexpr4b.right shouldBe NumericLiteral(DataType.UWORD, 5.0, Position.DUMMY)
binexpr4.operator shouldBe "/"
binexpr4.right shouldBe NumericLiteral(DataType.UWORD, 5.0, Position.DUMMY)
}
test("constantfolded and silently typecasted for initializervalues") {
@ -377,14 +362,12 @@ class TestOptimization: FunSpec({
uword z4
z4 = 0
ubyte z5
z5 = z1
z5 += 5
z5 = z1 + 5
ubyte z6
z6 = z1
z6 -= 5
z6 = z1 - 5
*/
val statements = result.compilerAst.entrypoint.statements
statements.size shouldBe 14
statements.size shouldBe 12
val z1decl = statements[0] as VarDecl
val z1init = statements[1] as Assignment
val z2decl = statements[2] as VarDecl
@ -395,10 +378,8 @@ class TestOptimization: FunSpec({
val z4init = statements[7] as Assignment
val z5decl = statements[8] as VarDecl
val z5init = statements[9] as Assignment
val z5plus = statements[10] as Assignment
val z6decl = statements[11] as VarDecl
val z6init = statements[12] as Assignment
val z6plus = statements[13] as Assignment
val z6decl = statements[10] as VarDecl
val z6init = statements[11] as Assignment
z1decl.name shouldBe "z1"
z1init.value shouldBe NumericLiteral(DataType.UBYTE, 10.0, Position.DUMMY)
@ -409,15 +390,11 @@ class TestOptimization: FunSpec({
z4decl.name shouldBe "z4"
z4init.value shouldBe NumericLiteral(DataType.UBYTE, 0.0, Position.DUMMY)
z5decl.name shouldBe "z5"
(z5init.value as? IdentifierReference)?.nameInSource shouldBe listOf("z1")
z5plus.isAugmentable shouldBe true
(z5plus.value as BinaryExpression).operator shouldBe "+"
(z5plus.value as BinaryExpression).right shouldBe NumericLiteral(DataType.UBYTE, 5.0, Position.DUMMY)
(z5init.value as BinaryExpression).operator shouldBe "+"
(z5init.value as BinaryExpression).right shouldBe NumericLiteral(DataType.UBYTE, 5.0, Position.DUMMY)
z6decl.name shouldBe "z6"
(z6init.value as? IdentifierReference)?.nameInSource shouldBe listOf("z1")
z6plus.isAugmentable shouldBe true
(z6plus.value as BinaryExpression).operator shouldBe "-"
(z6plus.value as BinaryExpression).right shouldBe NumericLiteral(DataType.UBYTE, 5.0, Position.DUMMY)
(z6init.value as BinaryExpression).operator shouldBe "-"
(z6init.value as BinaryExpression).right shouldBe NumericLiteral(DataType.UBYTE, 5.0, Position.DUMMY)
}
test("force_output option should work with optimizing memwrite assignment") {
@ -435,7 +412,7 @@ class TestOptimization: FunSpec({
val result = compileText(C64Target(), optimize=true, src, writeAssembly=false)!!
val stmts = result.compilerAst.entrypoint.statements
stmts.size shouldBe 6
stmts.size shouldBe 5
val assign=stmts.last() as Assignment
(assign.target.memoryAddress?.addressExpression as IdentifierReference).nameInSource shouldBe listOf("aa")
}
@ -452,7 +429,7 @@ class TestOptimization: FunSpec({
"""
val result = compileText(C64Target(), optimize=true, src, writeAssembly=false)!!
val stmts = result.compilerAst.entrypoint.statements
stmts.size shouldBe 6
stmts.size shouldBe 5
val assign=stmts.last() as Assignment
(assign.target.memoryAddress?.addressExpression as IdentifierReference).nameInSource shouldBe listOf("aa")
}
@ -548,9 +525,9 @@ class TestOptimization: FunSpec({
xx += 6
*/
val stmts = result.compilerAst.entrypoint.statements
stmts.size shouldBe 8
stmts.size shouldBe 7
stmts.filterIsInstance<VarDecl>().size shouldBe 3
stmts.filterIsInstance<Assignment>().size shouldBe 5
stmts.filterIsInstance<Assignment>().size shouldBe 4
}
test("only substitue assignments with 0 after a =0 initializer if it is the same variable") {

15
compiler/test/TestTypecasts.kt
View File

@ -95,19 +95,16 @@ main {
ubyte ub3
ub3 = 1
ubyte @shared bvalue
bvalue = ub1
bvalue ^= ub2
bvalue ^= ub3
bvalue ^= 1
bvalue = ub1 ^ ub2 ^ ub3 ^ true
bvalue = (((ub1^ub2)^ub3)^(ftrue(99)!=0))
bvalue = ((ub1&ub2)&(ftrue(99)!=0))
return
*/
stmts.size shouldBe 14
val assignValue1 = (stmts[7] as Assignment).value as IdentifierReference
val assignValue2 = (stmts[11] as Assignment).value as BinaryExpression
val assignValue3 = (stmts[12] as Assignment).value as BinaryExpression
assignValue1.nameInSource shouldBe listOf("ub1")
stmts.size shouldBe 11
val assignValue1 = (stmts[7] as Assignment).value as BinaryExpression
val assignValue2 = (stmts[8] as Assignment).value as BinaryExpression
val assignValue3 = (stmts[9] as Assignment).value as BinaryExpression
assignValue1.operator shouldBe "^"
assignValue2.operator shouldBe "^"
assignValue3.operator shouldBe "&"
val right2 = assignValue2.right as BinaryExpression

7
compiler/test/helpers/compileXyz.kt
View File

@ -17,22 +17,18 @@ internal fun compileFile(
outputDir: Path = prog8tests.helpers.outputDir,
errors: IErrorReporter? = null,
writeAssembly: Boolean = true,
optFloatExpr: Boolean = true,
) : CompilationResult? {
val filepath = fileDir.resolve(fileName)
assumeReadableFile(filepath)
val args = CompilerArguments(
filepath,
optimize,
optimizeFloatExpressions = optFloatExpr,
writeAssembly = writeAssembly,
slowCodegenWarnings = false,
quietAssembler = true,
asmListfile = false,
experimentalCodegen = false,
varsHighBank = null,
platform.name,
evalStackBaseAddress = null,
symbolDefs = emptyMap(),
outputDir = outputDir,
errors = errors ?: ErrorReporterForTests(),
@ -52,11 +48,10 @@ internal fun compileText(
sourceText: String,
errors: IErrorReporter? = null,
writeAssembly: Boolean = true,
optFloatExpr: Boolean = true,
) : CompilationResult? {
val filePath = outputDir.resolve("on_the_fly_test_" + sourceText.hashCode().toUInt().toString(16) + ".p8")
// we don't assumeNotExists(filePath) - should be ok to just overwrite it
filePath.toFile().writeText(sourceText)
return compileFile(platform, optimize, filePath.parent, filePath.name,
errors=errors, writeAssembly=writeAssembly, optFloatExpr = optFloatExpr)
errors=errors, writeAssembly=writeAssembly)
}

10
docs/source/compiling.rst
View File

@ -151,10 +151,6 @@ One or more .p8 module files
Note that it is possible to use the watch mode with multiple modules as well, but it will
recompile everything in that list even if only one of the files got updated.
``-slowwarn``
Shows debug warnings about slow or problematic assembly code generation.
Ideally, the compiler should use as few stack based evaluations as possible.
``-quietasm``
Don't print assembler output results.
@ -176,12 +172,6 @@ One or more .p8 module files
Add this user-defined symbol directly to the beginning of the generated assembly file.
Can be repeated to define multiple symbols.
``-esa <address>``
Override the base address of the evaluation stack. Has to be page-aligned.
You can specify an integer or hexadecimal address.
When not compiling for the Commander X16 target, the location of the 16 virtual registers cx16.r0..r15
is changed accordingly (to keep them in the same memory space as the evaluation stack).
``-varshigh <rambank>``
Places the non-zeropage variables in a separate high memory area, instead of inside the program itself.
This results in an increase of the amount of system ram available for the program

7
docs/source/programming.rst
View File

@ -945,15 +945,12 @@ syscall (callnr), syscall1 (callnr, arg), syscall2 (callnr, arg1, arg2), syscall
specific memory locations. So these builtin function calls are not useful yet except for
experimentation in new code generation targets.
rsave, rsavex
rsave
Saves all registers including status (or only X) on the stack
It's not needed to rsave()/rsavex() before an asm subroutine that clobbers the X register
(which is used by prog8 as the internal evaluation stack pointer);
the compiler will take care of this situation automatically.
Note: the 16 bit 'virtual' registers of the Commander X16 are *not* saved,
but you can use ``cx16.save_virtual_registers()`` for that.
rrestore, rrestorex
rrestore
Restore all registers including status (or only X) back from the cpu hardware stack
Note: the 16 bit 'virtual' registers of the Commander X16 are *not* restored,
but you can use ``cx16.restore_virtual_registers()`` for that.

18
docs/source/targetsystem.rst
View File

@ -56,35 +56,31 @@ Both systems have ways to alter the memory map and/or to switch memory banks, bu
Footnotes for the Commander X16
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*Golden Ram $0400 - $07FF*
*reserved:* $0700 - $07FF (expression evaluation stack)
*free to use:* $0400 - $06FF
*free to use.*
*Zero Page $0000 - $00FF*
$00 and $01 are hardwired as Rom and Ram banking registers.
$02 - $21 are the 16 virtual cx16 registers R0-R15.
$22 - $7F are free to use, and Prog8 utilizes this to put variables in automatically.
$22 - $7F are used by Prog8 to put variables in.
The top half of the ZP ($80-$FF) is reserved for use by the Kernal and Basic in normal operation.
Zero page use by Prog8 can be manipulated with the ``%zeropage`` directive, various options
may free up more locations for use by Prog8.
may free up more locations for use by Prog8 or to reserve them for other things.
Footnotes for the Commodore 64
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*RAM $C000-$CFFF*
*reserved:* $CF00 - $CFFF (expression evaluation stack)
*this includes:* $CF00 - $CF20 for the 16 virtual cx16 registers R0-R15
*free to use:* $C000 - $CEFF
*free to use:* $C000 - $CFDF
*reserved:* $CFE0 - $CFFF for the 16 virtual cx16 registers R0-R15
*Zero Page $0000 - $00FF*
Consider the full zero page to be reserved for use by the Kernal and Basic in normal operation.
Zero page use by Prog8 can be manipulated with the ``%zeropage`` directive, various options
may free up more locations for use by Prog8.
may free up more locations for use by Prog8 or to reserve them for other things.
Zero page usage by the Prog8 compiler
@ -127,8 +123,6 @@ Directly Usable Registers
The hardware CPU registers are not directly accessible from regular Prog8 code.
If you need to mess with them, you'll have to use inline assembly.
Be extra wary of the ``X`` register because it is used as an evaluation stack pointer and
changing its value you will destroy the evaluation stack and likely crash the program.
The status register (P) carry flag and interrupt disable flag can be written via a couple of special
builtin functions (``set_carry()``, ``clear_carry()``, ``set_irqd()``, ``clear_irqd()``),

59
docs/source/technical.rst
View File

@ -44,28 +44,6 @@ All elements in scoped names such as ``main.routine.var1`` are prefixed so this
}}
Software stack for expression evaluation
----------------------------------------
Prog8 uses a software stack to evaluate complex expressions that it can't calculate in-place or
directly into the target variable, register, or memory location.
'software stack' means: seperated and not using the processor's hardware stack.
The software stack is implemented as follows:
- 2*128 bytes = 1 page of memory allocated for this, exact locations vary per machine target.
For the C64 this page is at $cf00-$cfff.
For the Commander X16 it is at $0700-$07ff (top of the "golden ram" area).
This default location can be overridden using the `-esa` command line option.
- these are the high and low bytes of the values on the stack (it's a 'split 16 bit word stack')
- for byte values just the lsb page is used, for word values both pages
- float values (5 bytes) are chopped up into 2 words and 1 byte on this stack.
- the X register is permanently allocated to be the stack pointer in the software stack.
- you can use the X register as long as you're not using the software stack.
But you *must* make sure it is saved and restored after the code that modifies it,
otherwise the evaluation stack gets corrupted.
Subroutine Calling Convention
-----------------------------
@ -94,8 +72,7 @@ regular subroutines
^^^^^^^^^^^^^^^^^^^
- subroutine parameters are just variables scoped to the subroutine.
- the arguments passed in a call are evaluated (using the eval-stack if needed) and then
copied into those variables.
- the arguments passed in a call are evaluated and then copied into those variables.
Using variables for this sometimes can seem inefficient but it's required to allow subroutines to work locally
with their parameters and allow them to modify them as required, without changing the
variables used in the call's arguments. If you want to get rid of this overhead you'll
@ -118,40 +95,6 @@ doing something with that returnvalue. This can be on purpose if you're simply n
Use the ``void`` keyword in front of the subroutine call to get rid of the warning in that case.
The 6502 CPU's X-register: off-limits
-------------------------------------
Prog8 uses the cpu's X-register as a pointer in its internal expression evaluation stack.
When only writing code in Prog8, this is taken care of behind the scenes for you by the compiler.
However when you are including or linking with assembly routines or Kernal/ROM calls that *do*
use the X register (either clobbering it internally, or using it as a parameter, or return value register),
those calls will destroy Prog8's stack pointer and this will result in invalid calculations.
You should avoid using the X register in your assembly code, or take preparations.
If you make sure that the value of the X register is preserved before calling a routine
that uses it, and restored when the routine is done, you'll be ok.
Routines that return a value in the X register can be called from Prog8 but the return value is
inaccessible unless you write a short piece of inline assembly code to deal with it yourself, such as::
ubyte returnvalue
%asm {{
stx P8ZP_SCRATCH_REG ; use 'phx/plx' if using 65c02 cpu
ldx #10
jsr routine_using_x
stx returnvalue
ldx P8ZP_SCRATCH_REG
}}
; now use 'returnvalue' variable
Prog8 also provides some help to deal with this:
- you should use a ``clobbers(X)`` specification for asmsub routines that modify the X register; the compiler will preserve it for you automatically when such a routine is called
- the ``rsavex()`` and ``rrestorex()`` builtin functions can preserve and restore the X register
- the ``rsave()`` and ``rrestore()`` builtin functions can preserve and restore *all* registers (but this is very slow and overkill if you only need to save X)
Compiler Internals
------------------

10
docs/source/todo.rst
View File

@ -48,16 +48,6 @@ Libraries:
- c64: make the graphics.BITMAP_ADDRESS configurable (VIC banking)
Expressions: (see remove_evalstack branch):
- Once the evalstack-free expression codegen is in place, the Eval Stack can be removed from the compiler.
Machinedefinition, .p8 and .asm library files, all routines operationg on estack, and everything saving/restoring the X register related to this stack.
- Or rewrite expression tree evaluation such that it doesn't use an eval stack but flatten the tree into linear code
that, for instance, uses a fixed number of predetermined value 'variables'?
The VM IL solves this already (by using unlimited registers) but that still lacks a translation to 6502.
- this removes the need for the BinExprSplitter? (which is problematic and very limited now)
and perhaps the assignment splitting in BeforeAsmAstChanger too
Optimizations:
- VariableAllocator: can we think of a smarter strategy for allocating variables into zeropage, rather than first-come-first-served?

7
examples/cx16/cobramk3-gfx.p8
View File

@ -63,9 +63,8 @@ main {
cx16.GRAPH_put_next_char(c)
}
asmsub print_number_gfx(ubyte num @ A) clobbers(A,Y) {
asmsub print_number_gfx(ubyte num @ A) clobbers(A,X,Y) {
%asm {{
phx
jsr conv.ubyte2decimal
phx
pha
@ -81,9 +80,7 @@ main {
beq _ones
jsr cx16.GRAPH_put_char
_ones pla
jsr cx16.GRAPH_put_char
plx
rts
jmp cx16.GRAPH_put_char
}}
}

67
examples/cx16/keyboardhandler.p8
View File

@ -2,21 +2,24 @@
%zeropage basicsafe
%option no_sysinit
; The documentation for custom PS2 key handlers can be found here:
; https://github.com/X16Community/x16-docs/blob/master/X16%20Reference%20-%2002%20-%20Editor.md#custom-keyboard-scancode-handler
; The documentation for custom key handlers can be found here:
; https://github.com/X16Community/x16-docs/blob/master/X16%20Reference%20-%2002%20-%20Editor.md#custom-keyboard-keynum-code-handler
main {
bool stop_program = false
sub start() {
txt.print("custom key handler test - press keys! esc to quit!\n")
sys.set_irqd()
uword old_keyhdl = cx16.KEYHDL
cx16.KEYHDL = &keyboard_scancode_handler
cx16.KEYHDL = &keyboard_handler
sys.clear_irqd()
while handle_keyboard_event() {
while not stop_program {
; wait
}
sys.set_irqd()
@ -24,55 +27,23 @@ main {
sys.clear_irqd()
}
; Keyboard handler communication variables.
; these need to be in block scope instead of in a subroutine,
; so that they won't get overwritten with initialization values every time.
; The assembly keyboard handler will set these, prog8 will read them.
bool @shared keyhdl_event ; is there a keyboard event to handle?
ubyte @shared keyhdl_scancode
sub handle_keyboard_event() -> bool {
; Potentially handle keyboard event.
; Note that we do this from the program's main loop instead of
; the actual keyboard handler routine itself.
; The reason for this is documented below in the handler assembly routine.
if not keyhdl_event
return true
keyhdl_event = false
txt.print_ubhex(keyhdl_scancode, true)
sub keyboard_handler(ubyte keynum) -> ubyte {
; NOTE: this handler routine expects the keynum in A and return value in A
; which is thankfully how prog8 translates this subroutine's calling convention.
; NOTE: it may be better to store the keynum somewhere else and let the main program
; loop figure out what to do with it, rather than putting it all in the handler routine
txt.print_ubhex(keynum, true)
txt.spc()
if keyhdl_scancode & $80
if keynum & $80
txt.chrout('u')
else
txt.chrout('d')
txt.nl()
return keyhdl_scancode!=$6e ; escape breaks the loop
}
asmsub keyboard_scancode_handler() {
; NOTE that the keyboard handler is an asm subroutine.
; Unfortunately is it not possible to use prog8 code or calls here,
; because the X register gets overwritten here by the kernal.
; Pog8 uses the X register internally (for the software eval stack).
; So it is unsafe to call prog8 code from here because the evaluation stack pointer
; will be invalid which produces undefined results.
; So, instead, we store the various keyboard event bytes and signal
; the main prog8 program that a keyboard event has occurred.
; It then processes it independently from the assembly code here.
;
; Unfortunately this also means you cannot decide easily from that prog8 code
; if the keyboard press should be consumed/ignored or put into the keyboard queue
; (this is controlled by returning 0 or 1 in register A here)
%asm {{
pha
sta p8_keyhdl_scancode
lda #1
sta p8_keyhdl_event
pla
lda #0 ; By setting A=0 we will eat this key event. leave A unchanged to pass it through.
rts
}}
if keynum==$6e {
; escape stops the program
main.stop_program = true
}
return 0 ; By returning 0 (in A) we will eat this key event. Return the original keynum value to pass it through.
}
}

6
examples/cx16/mandelbrot.p8
View File

@ -9,6 +9,7 @@ main {
sub start() {
txt.print("calculating mandelbrot fractal...\n\n")
cbm.SETTIM(0,0,0)
ubyte pixelx
ubyte pixely
@ -37,5 +38,10 @@ main {
}
txt.nl()
}
float duration = (cbm.RDTIM16() as float) / 60
txt.print("\nfinished in ")
floats.print_f(duration)
txt.print(" seconds!\n")
}
}

3
httpCompilerService/src/prog8/http/TestHttp.kt
View File

@ -33,11 +33,8 @@ class RequestParser : Take {
val args = CompilerArguments(
Path(a),
optimize = true,
optimizeFloatExpressions = false,
writeAssembly = true,
slowCodegenWarnings = true,
compilationTarget = "c64",
evalStackBaseAddress = null,
symbolDefs = emptyMap(),
quietAssembler = false,
asmListfile = false,

3
intermediate/src/prog8/intermediate/IRFileReader.kt
View File

@ -88,7 +88,6 @@ class IRFileReader {
val zpReserved = mutableListOf<UIntRange>()
var loadAddress = target.machine.PROGRAM_LOAD_ADDRESS
var optimize = true
var evalStackBaseAddress: UInt? = null
var outputDir = Path("")
if(text.isNotBlank()) {
@ -109,7 +108,6 @@ class IRFileReader {
"launcher" -> launcher = CbmPrgLauncherType.valueOf(value)
"zeropage" -> zeropage = ZeropageType.valueOf(value)
"loadAddress" -> loadAddress = parseIRValue(value).toUInt()
"evalStackBaseAddress" -> evalStackBaseAddress = if(value=="") null else parseIRValue(value).toUInt()
"zpReserved" -> {
val (zpstart, zpend) = value.split(',')
zpReserved.add(UIntRange(zpstart.toUInt(), zpend.toUInt()))
@ -130,7 +128,6 @@ class IRFileReader {
false,
target,
loadAddress,
evalStackBaseAddress = evalStackBaseAddress,
outputDir = outputDir,
optimize = optimize
)

2
intermediate/src/prog8/intermediate/IRFileWriter.kt
View File

@ -110,7 +110,6 @@ class IRFileWriter(private val irProgram: IRProgram, outfileOverride: Path?) {
is IRInlineAsmChunk -> writeInlineAsm(chunk)
is IRInlineBinaryChunk -> writeInlineBytes(chunk)
is IRCodeChunk -> writeCodeChunk(chunk)
else -> throw InternalCompilerException("invalid chunk")
}
}
xml.writeEndElement()
@ -171,7 +170,6 @@ class IRFileWriter(private val irProgram: IRProgram, outfileOverride: Path?) {
}
xml.writeCharacters("loadAddress=${irProgram.options.loadAddress.toHex()}\n")
xml.writeCharacters("optimize=${irProgram.options.optimize}\n")
xml.writeCharacters("evalStackBaseAddress=${irProgram.options.evalStackBaseAddress?.toHex() ?: ""}\n")
xml.writeCharacters("outputDir=${irProgram.options.outputDir.toAbsolutePath()}\n")
// other options not yet useful here?
xml.writeEndElement()

1
intermediate/src/prog8/intermediate/IRProgram.kt
View File

@ -168,7 +168,6 @@ class IRProgram(val name: String,
}
}
is IRInlineBinaryChunk -> { }
else -> throw AssemblyError("invalid chunk")
}
}
}

1
intermediate/test/TestIRFileInOut.kt
View File

@ -48,7 +48,6 @@ output=PRG
launcher=BASIC
zeropage=KERNALSAFE
loadAddress=$0000
evalStackBaseAddress=
</OPTIONS>
<ASMSYMBOLS>

2
virtualmachine/src/prog8/vm/SysCalls.kt
View File

@ -1,6 +1,5 @@
package prog8.vm
import prog8.code.core.AssemblyError
import prog8.intermediate.FunctionCallArgs
import prog8.intermediate.IRDataType
import kotlin.math.*
@ -484,7 +483,6 @@ object SysCalls {
val result = floor(radians/2.0/PI*256.0)
returnValue(callspec.returns!!, result, vm)
}
else -> throw AssemblyError("missing syscall ${call.name}")
}
}
}

2
virtualmachine/src/prog8/vm/VmProgramLoader.kt
View File

@ -173,7 +173,7 @@ class VmProgramLoader {
subroutines.forEach {
it.value.chunks.forEach { chunk ->
chunk.instructions.withIndex().forEach { (index, ins) ->
chunk.instructions.withIndex().forEach { (_, ins) ->
if(ins.opcode==Opcode.CALL) {
val fcallspec = ins.fcallArgs!!
val argsWithAddresses = fcallspec.arguments.map { arg ->