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Code Issues Projects Releases Wiki Activity

got rid of obsolete code

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Irmen de Jong 2020-02-02 19:18:40 +01:00
parent 654d74da1e
commit 868df1865c
6 changed files with 0 additions and 3678 deletions
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1
.idea/modules.xml generated
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@ -2,7 +2,6 @@
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/OldCodeGen/OldCodeGen.iml" filepath="$PROJECT_DIR$/OldCodeGen/OldCodeGen.iml" />
<module fileurl="file://$PROJECT_DIR$/compiler/compiler.iml" filepath="$PROJECT_DIR$/compiler/compiler.iml" />
<module fileurl="file://$PROJECT_DIR$/docs/docs.iml" filepath="$PROJECT_DIR$/docs/docs.iml" />
<module fileurl="file://$PROJECT_DIR$/examples/examples.iml" filepath="$PROJECT_DIR$/examples/examples.iml" />

10
OldCodeGen/OldCodeGen.iml
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@ -1,10 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$" />
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
<orderEntry type="library" name="KotlinJavaRuntime" level="project" />
</component>
</module>

762
OldCodeGen/src/oldcodegen/AsmGen.kt
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@ -1,762 +0,0 @@
package oldcodegen
/** OLD STACK-VM CODE GEN -- NO LONGER USED **/
// note: to put stuff on the stack, we use Absolute,X addressing mode which is 3 bytes / 4 cycles
// possible space optimization is to use zeropage (indirect),Y which is 2 bytes, but 5 cycles
import prog8.ast.antlr.escape
import prog8.ast.base.DataType
import prog8.ast.base.initvarsSubName
import prog8.ast.statements.ZeropageWish
import prog8.compiler.*
import prog8.compiler.intermediate.Instruction
import prog8.compiler.intermediate.IntermediateProgram
import prog8.compiler.intermediate.LabelInstr
import prog8.compiler.intermediate.Opcode
import prog8.compiler.target.c64.AssemblyProgram
import prog8.compiler.target.c64.MachineDefinition
import prog8.compiler.target.c64.Petscii
import prog8.vm.RuntimeValue
import java.io.File
import kotlin.math.abs
class AssemblyError(msg: String) : RuntimeException(msg)
internal fun intVal(valueInstr: Instruction) = valueInstr.arg!!.integerValue()
internal fun hexVal(valueInstr: Instruction) = valueInstr.arg!!.integerValue().toHex()
internal fun hexValPlusOne(valueInstr: Instruction) = (valueInstr.arg!!.integerValue()+1).toHex()
internal fun getFloatConst(value: RuntimeValue): String =
globalFloatConsts[value.numericValue().toDouble()]
?: throw AssemblyError("should have a global float const for number $value")
internal val globalFloatConsts = mutableMapOf<Double, String>()
internal fun signExtendA(into: String) =
"""
ora #$7f
bmi +
lda #0
+ sta $into
"""
class AsmGen(private val options: CompilationOptions, private val program: IntermediateProgram,
private val heap: HeapValues, private val zeropage: Zeropage) {
private val assemblyLines = mutableListOf<String>()
private lateinit var block: IntermediateProgram.ProgramBlock
init {
// Convert invalid label names (such as "<anon-1>") to something that's allowed.
val newblocks = mutableListOf<IntermediateProgram.ProgramBlock>()
for(block in program.blocks) {
val newvars = block.variables.map { IntermediateProgram.Variable(symname(it.scopedname, block), it.value, it.params) }.toMutableList()
val newlabels = block.labels.map { symname(it.key, block) to it.value}.toMap().toMutableMap()
val newinstructions = block.instructions.asSequence().map {
when {
it is LabelInstr -> LabelInstr(symname(it.name, block), it.asmProc)
it.opcode == Opcode.INLINE_ASSEMBLY -> it
else ->
Instruction(it.opcode, it.arg, it.arg2,
callLabel = if (it.callLabel != null) symname(it.callLabel, block) else null,
callLabel2 = if (it.callLabel2 != null) symname(it.callLabel2, block) else null)
}
}.toMutableList()
val newMempointers = block.memoryPointers.map { symname(it.key, block) to it.value }.toMap().toMutableMap()
val newblock = IntermediateProgram.ProgramBlock(
block.name,
block.address,
newinstructions,
newvars,
newMempointers,
newlabels,
force_output = block.force_output)
newblocks.add(newblock)
}
program.blocks.clear()
program.blocks.addAll(newblocks)
val newAllocatedZp = program.allocatedZeropageVariables.map { symname(it.key, null) to it.value}
program.allocatedZeropageVariables.clear()
program.allocatedZeropageVariables.putAll(newAllocatedZp)
// make a list of all const floats that are used
for(block in program.blocks) {
for(ins in block.instructions.filter{it.arg?.type== DataType.FLOAT}) {
val float = ins.arg!!.numericValue().toDouble()
if(float !in globalFloatConsts)
globalFloatConsts[float] = "prog8_const_float_${globalFloatConsts.size}"
}
}
}
fun compileToAssembly(optimize: Boolean): AssemblyProgram {
println("Generating assembly code from intermediate code... ")
assemblyLines.clear()
header()
for(b in program.blocks)
block2asm(b)
if(optimize) {
var optimizationsDone = 1
while (optimizationsDone > 0) {
optimizationsDone = optimizeAssembly(assemblyLines)
}
}
File("${program.name}.asm").printWriter().use {
for (line in assemblyLines) { it.println(line) }
}
return AssemblyProgram(program.name)
}
private fun out(str: String, splitlines: Boolean=true) {
if(splitlines) {
for (line in str.split('\n')) {
val trimmed = if (line.startsWith(' ')) "\t" + line.trim() else line.trim()
// trimmed = trimmed.replace(Regex("^\\+\\s+"), "+\t") // sanitize local label indentation
assemblyLines.add(trimmed)
}
} else assemblyLines.add(str)
}
// convert a fully scoped name (defined in the given block) to a valid assembly symbol name
private fun symname(scoped: String, block: IntermediateProgram.ProgramBlock?): String {
if(' ' in scoped)
return scoped
val blockLocal: Boolean
var name = if (block!=null && scoped.startsWith("${block.name}.")) {
blockLocal = true
scoped.substring(block.name.length+1)
}
else {
blockLocal = false
scoped
}
name = name.replace("<", "prog8_").replace(">", "") // take care of the autogenerated invalid (anon) label names
if(name=="-")
return "-"
if(blockLocal)
name = name.replace(".", "_")
else {
val parts = name.split(".", limit=2)
if(parts.size>1)
name = "${parts[0]}.${parts[1].replace(".", "_")}"
}
return name.replace("-", "")
}
private fun makeFloatFill(flt: MachineDefinition.Mflpt5): String {
val b0 = "$"+flt.b0.toString(16).padStart(2, '0')
val b1 = "$"+flt.b1.toString(16).padStart(2, '0')
val b2 = "$"+flt.b2.toString(16).padStart(2, '0')
val b3 = "$"+flt.b3.toString(16).padStart(2, '0')
val b4 = "$"+flt.b4.toString(16).padStart(2, '0')
return "$b0, $b1, $b2, $b3, $b4"
}
private fun header() {
val ourName = this.javaClass.name
out("; 6502 assembly code for '${program.name}'")
out("; generated by $ourName on ${Date()}")
out("; assembler syntax is for the 64tasm cross-assembler")
out("; output options: output=${options.output} launcher=${options.launcher} zp=${options.zeropage}")
out("\n.cpu '6502'\n.enc 'none'\n")
if(program.loadAddress==0) // fix load address
program.loadAddress = if(options.launcher==LauncherType.BASIC)
MachineDefinition.BASIC_LOAD_ADDRESS else MachineDefinition.RAW_LOAD_ADDRESS
when {
options.launcher == LauncherType.BASIC -> {
if (program.loadAddress != 0x0801)
throw AssemblyError("BASIC output must have load address $0801")
out("; ---- basic program with sys call ----")
out("* = ${program.loadAddress.toHex()}")
val year = Calendar.getInstance().get(Calendar.YEAR)
out(" .word (+), $year")
out(" .null $9e, format(' %d ', _prog8_entrypoint), $3a, $8f, ' prog8 by idj'")
out("+\t.word 0")
out("_prog8_entrypoint\t; assembly code starts here\n")
out(" jsr prog8_lib.init_system")
}
options.output == OutputType.PRG -> {
out("; ---- program without basic sys call ----")
out("* = ${program.loadAddress.toHex()}\n")
out(" jsr prog8_lib.init_system")
}
options.output == OutputType.RAW -> {
out("; ---- raw assembler program ----")
out("* = ${program.loadAddress.toHex()}\n")
}
}
if(zeropage.exitProgramStrategy!=Zeropage.ExitProgramStrategy.CLEAN_EXIT) {
// disable shift-commodore charset switching and run/stop key
out(" lda #$80")
out(" lda #$80")
out(" sta 657\t; disable charset switching")
out(" lda #239")
out(" sta 808\t; disable run/stop key")
}
out(" ldx #\$ff\t; init estack pointer")
out(" ; initialize the variables in each block")
for(block in program.blocks) {
val initVarsLabel = block.instructions.firstOrNull { it is LabelInstr && it.name== initvarsSubName } as? LabelInstr
if(initVarsLabel!=null)
out(" jsr ${block.name}.${initVarsLabel.name}")
}
out(" clc")
when(zeropage.exitProgramStrategy) {
Zeropage.ExitProgramStrategy.CLEAN_EXIT -> {
out(" jmp main.start\t; jump to program entrypoint")
}
Zeropage.ExitProgramStrategy.SYSTEM_RESET -> {
out(" jsr main.start\t; call program entrypoint")
out(" jmp (c64.RESET_VEC)\t; cold reset")
}
}
out("")
// the global list of all floating point constants for the whole program
for(flt in globalFloatConsts) {
val floatFill = makeFloatFill(MachineDefinition.Mflpt5.fromNumber(flt.key))
out("${flt.value}\t.byte $floatFill ; float ${flt.key}")
}
}
private fun block2asm(blk: IntermediateProgram.ProgramBlock) {
block = blk
out("\n\n; ---- block: '${block.name}' ----")
if(!blk.force_output)
out("${block.name}\t.proc\n")
if(block.address!=null) {
out(".cerror * > ${block.address?.toHex()}, 'block address overlaps by ', *-${block.address?.toHex()},' bytes'")
out("* = ${block.address?.toHex()}")
}
// deal with zeropage variables
for(variable in blk.variables) {
val sym = symname(blk.name+"."+variable.scopedname, null)
val zpVar = program.allocatedZeropageVariables[sym]
if(zpVar==null) {
// This var is not on the ZP yet. Attempt to move it there (if it's not a float, those take up too much space)
if(variable.params.zp != ZeropageWish.NOT_IN_ZEROPAGE &&
variable.value.type in zeropage.allowedDatatypes
&& variable.value.type != DataType.FLOAT) {
try {
val address = zeropage.allocate(sym, variable.value.type, null)
out("${variable.scopedname} = $address\t; auto zp ${variable.value.type}")
// make sure we add the var to the set of zpvars for this block
program.allocatedZeropageVariables[sym] = Pair(address, variable.value.type)
} catch (x: ZeropageDepletedError) {
// leave it as it is.
}
}
}
else {
// it was already allocated on the zp
out("${variable.scopedname} = ${zpVar.first}\t; zp ${zpVar.second}")
}
}
out("\n; memdefs and kernel subroutines")
memdefs2asm(block)
out("\n; non-zeropage variables")
vardecls2asm(block)
out("")
val instructionPatternWindowSize = 8 // increase once patterns occur longer than this.
var processed = 0
for (ins in block.instructions.windowed(instructionPatternWindowSize, partialWindows = true)) {
if (processed == 0) {
processed = instr2asm(ins)
if (processed == 0) {
// the instructions are not recognised yet and can't be translated into assembly
throw CompilerException("no asm translation found for instruction pattern: $ins")
}
}
processed--
}
if(!blk.force_output)
out("\n\t.pend\n")
}
private fun memdefs2asm(block: IntermediateProgram.ProgramBlock) {
for(m in block.memoryPointers) {
out(" ${m.key} = ${m.value.first.toHex()}")
}
}
private fun vardecls2asm(block: IntermediateProgram.ProgramBlock) {
val uniqueNames = block.variables.map { it.scopedname }.toSet()
if (uniqueNames.size != block.variables.size)
throw AssemblyError("not all variables have unique names")
// these are the non-zeropage variables.
// first get all the flattened struct members, they MUST remain in order
out("; flattened struct members")
val (structMembers, normalVars) = block.variables.partition { it.params.memberOfStruct!=null }
structMembers.forEach { vardecl2asm(it.scopedname, it.value, it.params) }
// sort the other variables by type
out("; other variables sorted by type")
val sortedVars = normalVars.sortedBy { it.value.type }
for (variable in sortedVars) {
val sym = symname(block.name + "." + variable.scopedname, null)
if(sym in program.allocatedZeropageVariables)
continue // skip the ones that already belong in the zero page
vardecl2asm(variable.scopedname, variable.value, variable.params)
}
}
private fun vardecl2asm(varname: String, value: RuntimeValue, parameters: IntermediateProgram.VariableParameters) {
when (value.type) {
DataType.UBYTE -> out("$varname\t.byte 0")
DataType.BYTE -> out("$varname\t.char 0")
DataType.UWORD -> out("$varname\t.word 0")
DataType.WORD -> out("$varname\t.sint 0")
DataType.FLOAT -> out("$varname\t.byte 0,0,0,0,0 ; float")
DataType.STR, DataType.STR_S -> {
val rawStr = heap.get(value.heapId!!).str!!
val bytes = encodeStr(rawStr, value.type).map { "$" + it.toString(16).padStart(2, '0') }
out("$varname\t; ${value.type} \"${escape(rawStr).replace("\u0000", "<NULL>")}\"")
for (chunk in bytes.chunked(16))
out(" .byte " + chunk.joinToString())
}
DataType.ARRAY_UB -> {
// unsigned integer byte arraysize
val data = makeArrayFillDataUnsigned(value)
if (data.size <= 16)
out("$varname\t.byte ${data.joinToString()}")
else {
out(varname)
for (chunk in data.chunked(16))
out(" .byte " + chunk.joinToString())
}
}
DataType.ARRAY_B -> {
// signed integer byte arraysize
val data = makeArrayFillDataSigned(value)
if (data.size <= 16)
out("$varname\t.char ${data.joinToString()}")
else {
out(varname)
for (chunk in data.chunked(16))
out(" .char " + chunk.joinToString())
}
}
DataType.ARRAY_UW -> {
// unsigned word arraysize
val data = makeArrayFillDataUnsigned(value)
if (data.size <= 16)
out("$varname\t.word ${data.joinToString()}")
else {
out(varname)
for (chunk in data.chunked(16))
out(" .word " + chunk.joinToString())
}
}
DataType.ARRAY_W -> {
// signed word arraysize
val data = makeArrayFillDataSigned(value)
if (data.size <= 16)
out("$varname\t.sint ${data.joinToString()}")
else {
out(varname)
for (chunk in data.chunked(16))
out(" .sint " + chunk.joinToString())
}
}
DataType.ARRAY_F -> {
// float arraysize
val array = heap.get(value.heapId!!).doubleArray!!
val floatFills = array.map { makeFloatFill(MachineDefinition.Mflpt5.fromNumber(it)) }
out(varname)
for (f in array.zip(floatFills))
out(" .byte ${f.second} ; float ${f.first}")
}
DataType.STRUCT -> throw AssemblyError("vars of type STRUCT should have been removed because flattened")
}
}
private fun encodeStr(str: String, dt: DataType): List<Short> {
return when(dt) {
DataType.STR -> {
val bytes = Petscii.encodePetscii(str, true)
bytes.plus(0)
}
DataType.STR_S -> {
val bytes = Petscii.encodeScreencode(str, true)
bytes.plus(0)
}
else -> throw AssemblyError("invalid str type")
}
}
private fun makeArrayFillDataUnsigned(value: RuntimeValue): List<String> {
val array = heap.get(value.heapId!!).array!!
return when {
value.type== DataType.ARRAY_UB ->
// byte array can never contain pointer-to types, so treat values as all integers
array.map { "$"+it.integer!!.toString(16).padStart(2, '0') }
value.type== DataType.ARRAY_UW -> array.map {
when {
it.integer!=null -> "$"+it.integer.toString(16).padStart(2, '0')
it.addressOf!=null -> symname(it.addressOf.scopedname!!, block)
else -> throw AssemblyError("weird type in array")
}
}
else -> throw AssemblyError("invalid arraysize type")
}
}
private fun makeArrayFillDataSigned(value: RuntimeValue): List<String> {
val array = heap.get(value.heapId!!).array!!
// note: array of signed value can never contain pointer-to type, so simply accept values as being all integers
return if (value.type == DataType.ARRAY_B || value.type == DataType.ARRAY_W) {
array.map {
if(it.integer!!>=0)
"$"+it.integer.toString(16).padStart(2, '0')
else
"-$"+abs(it.integer).toString(16).padStart(2, '0')
}
}
else throw AssemblyError("invalid arraysize type")
}
private fun instr2asm(ins: List<Instruction>): Int {
// find best patterns (matching the most of the lines, then with the smallest weight)
val fragments = findPatterns(ins).sortedByDescending { it.segmentSize }
if(fragments.isEmpty()) {
// we didn't find any matching patterns (complex multi-instruction fragments), try simple ones
val firstIns = ins[0]
val singleAsm = simpleInstr2Asm(firstIns, block)
if(singleAsm != null) {
outputAsmFragment(singleAsm)
return 1
}
return 0
}
val best = fragments[0]
outputAsmFragment(best.asm)
return best.segmentSize
}
private fun outputAsmFragment(singleAsm: String) {
if (singleAsm.isNotEmpty()) {
if(singleAsm.startsWith("@inline@"))
out(singleAsm.substring(8), false)
else {
val withNewlines = singleAsm.replace('|', '\n')
out(withNewlines)
}
}
}
private fun findPatterns(segment: List<Instruction>): List<AsmFragment> {
val opcodes = segment.map { it.opcode }
val result = mutableListOf<AsmFragment>()
// check for operations that modify a single value, by putting it on the stack (and popping it afterwards)
if((opcodes[0]==Opcode.PUSH_VAR_BYTE && opcodes[2]==Opcode.POP_VAR_BYTE) ||
(opcodes[0]==Opcode.PUSH_VAR_WORD && opcodes[2]==Opcode.POP_VAR_WORD) ||
(opcodes[0]==Opcode.PUSH_VAR_FLOAT && opcodes[2]==Opcode.POP_VAR_FLOAT)) {
if (segment[0].callLabel == segment[2].callLabel) {
val fragment = sameVarOperation(segment[0].callLabel!!, segment[1])
if (fragment != null) {
fragment.segmentSize = 3
result.add(fragment)
}
}
}
else if((opcodes[0]==Opcode.PUSH_BYTE && opcodes[1] in setOf(Opcode.INC_INDEXED_VAR_B, Opcode.INC_INDEXED_VAR_UB,
Opcode.INC_INDEXED_VAR_UW, Opcode.INC_INDEXED_VAR_W, Opcode.INC_INDEXED_VAR_FLOAT,
Opcode.DEC_INDEXED_VAR_B, Opcode.DEC_INDEXED_VAR_UB, Opcode.DEC_INDEXED_VAR_W,
Opcode.DEC_INDEXED_VAR_UW, Opcode.DEC_INDEXED_VAR_FLOAT))) {
val fragment = sameConstantIndexedVarOperation(segment[1].callLabel!!, segment[0].arg!!.integerValue(), segment[1])
if(fragment!=null) {
fragment.segmentSize=2
result.add(fragment)
}
}
else if((opcodes[0]==Opcode.PUSH_VAR_BYTE && opcodes[1] in setOf(Opcode.INC_INDEXED_VAR_B, Opcode.INC_INDEXED_VAR_UB,
Opcode.INC_INDEXED_VAR_UW, Opcode.INC_INDEXED_VAR_W, Opcode.INC_INDEXED_VAR_FLOAT,
Opcode.DEC_INDEXED_VAR_B, Opcode.DEC_INDEXED_VAR_UB, Opcode.DEC_INDEXED_VAR_W,
Opcode.DEC_INDEXED_VAR_UW, Opcode.DEC_INDEXED_VAR_FLOAT))) {
val fragment = sameIndexedVarOperation(segment[1].callLabel!!, segment[0].callLabel!!, segment[1])
if(fragment!=null) {
fragment.segmentSize=2
result.add(fragment)
}
}
else if((opcodes[0]==Opcode.PUSH_MEM_UB && opcodes[2]==Opcode.POP_MEM_BYTE) ||
(opcodes[0]==Opcode.PUSH_MEM_B && opcodes[2]==Opcode.POP_MEM_BYTE) ||
(opcodes[0]==Opcode.PUSH_MEM_UW && opcodes[2]==Opcode.POP_MEM_WORD) ||
(opcodes[0]==Opcode.PUSH_MEM_W && opcodes[2]==Opcode.POP_MEM_WORD) ||
(opcodes[0]==Opcode.PUSH_MEM_FLOAT && opcodes[2]==Opcode.POP_MEM_FLOAT)) {
if(segment[0].arg==segment[2].arg) {
val fragment = sameMemOperation(segment[0].arg!!.integerValue(), segment[1])
if(fragment!=null) {
fragment.segmentSize = 3
result.add(fragment)
}
}
}
else if((opcodes[0]==Opcode.PUSH_BYTE && opcodes[1]==Opcode.READ_INDEXED_VAR_BYTE &&
opcodes[3]==Opcode.PUSH_BYTE && opcodes[4]==Opcode.WRITE_INDEXED_VAR_BYTE) ||
(opcodes[0]==Opcode.PUSH_BYTE && opcodes[1]==Opcode.READ_INDEXED_VAR_WORD &&
opcodes[3]==Opcode.PUSH_BYTE && opcodes[4]==Opcode.WRITE_INDEXED_VAR_WORD)) {
if(segment[0].arg==segment[3].arg && segment[1].callLabel==segment[4].callLabel) {
val fragment = sameConstantIndexedVarOperation(segment[1].callLabel!!, segment[0].arg!!.integerValue(), segment[2])
if(fragment!=null){
fragment.segmentSize = 5
result.add(fragment)
}
}
}
else if((opcodes[0]==Opcode.PUSH_VAR_BYTE && opcodes[1]==Opcode.READ_INDEXED_VAR_BYTE &&
opcodes[3]==Opcode.PUSH_VAR_BYTE && opcodes[4]==Opcode.WRITE_INDEXED_VAR_BYTE) ||
(opcodes[0]==Opcode.PUSH_VAR_BYTE && opcodes[1]==Opcode.READ_INDEXED_VAR_WORD &&
opcodes[3]==Opcode.PUSH_VAR_BYTE && opcodes[4]==Opcode.WRITE_INDEXED_VAR_WORD)) {
if(segment[0].callLabel==segment[3].callLabel && segment[1].callLabel==segment[4].callLabel) {
val fragment = sameIndexedVarOperation(segment[1].callLabel!!, segment[0].callLabel!!, segment[2])
if(fragment!=null){
fragment.segmentSize = 5
result.add(fragment)
}
}
}
// add any matching patterns from the big list
for(pattern in Patterns.patterns) {
if(pattern.sequence.size > segment.size || (pattern.altSequence!=null && pattern.altSequence.size > segment.size))
continue // don't accept patterns that don't fit
val opcodesList = opcodes.subList(0, pattern.sequence.size)
if(pattern.sequence == opcodesList) {
val asm = pattern.asm(segment)
if(asm!=null)
result.add(AsmFragment(asm, pattern.sequence.size))
} else if(pattern.altSequence!=null) {
val opcodesListAlt = opcodes.subList(0, pattern.altSequence.size)
if(pattern.altSequence == opcodesListAlt) {
val asm = pattern.asm(segment)
if (asm != null)
result.add(AsmFragment(asm, pattern.sequence.size))
}
}
}
return result
}
private fun sameConstantIndexedVarOperation(variable: String, index: Int, ins: Instruction): AsmFragment? {
// an in place operation that consists of a push-value / op / push-index-value / pop-into-indexed-var
return when(ins.opcode) {
Opcode.SHL_BYTE -> AsmFragment(" asl $variable+$index", 8)
Opcode.SHR_UBYTE -> AsmFragment(" lsr $variable+$index", 8)
Opcode.SHR_SBYTE -> AsmFragment(" lda $variable+$index | asl a | ror $variable+$index")
Opcode.SHL_WORD -> AsmFragment(" asl $variable+${index * 2 + 1} | rol $variable+${index * 2}", 8)
Opcode.SHR_UWORD -> AsmFragment(" lsr $variable+${index * 2 + 1} | ror $variable+${index * 2}", 8)
Opcode.SHR_SWORD -> AsmFragment(" lda $variable+${index * 2 + 1} | asl a | ror $variable+${index * 2 + 1} | ror $variable+${index * 2}", 8)
Opcode.ROL_BYTE -> AsmFragment(" rol $variable+$index", 8)
Opcode.ROR_BYTE -> AsmFragment(" ror $variable+$index", 8)
Opcode.ROL_WORD -> AsmFragment(" rol $variable+${index * 2 + 1} | rol $variable+${index * 2}", 8)
Opcode.ROR_WORD -> AsmFragment(" ror $variable+${index * 2 + 1} | ror $variable+${index * 2}", 8)
Opcode.ROL2_BYTE -> AsmFragment(" lda $variable+$index | cmp #\$80 | rol $variable+$index", 8)
Opcode.ROR2_BYTE -> AsmFragment(" lda $variable+$index | lsr a | bcc + | ora #\$80 |+ | sta $variable+$index", 10)
Opcode.ROL2_WORD -> AsmFragment(" asl $variable+${index * 2 + 1} | rol $variable+${index * 2} | bcc + | inc $variable+${index * 2 + 1} |+", 20)
Opcode.ROR2_WORD -> AsmFragment(" lsr $variable+${index * 2 + 1} | ror $variable+${index * 2} | bcc + | lda $variable+${index * 2 + 1} | ora #\$80 | sta $variable+${index * 2 + 1} |+", 30)
Opcode.INC_INDEXED_VAR_B, Opcode.INC_INDEXED_VAR_UB -> AsmFragment(" inc $variable+$index", 2)
Opcode.DEC_INDEXED_VAR_B, Opcode.DEC_INDEXED_VAR_UB -> AsmFragment(" dec $variable+$index", 5)
Opcode.INC_INDEXED_VAR_W, Opcode.INC_INDEXED_VAR_UW -> AsmFragment(" inc $variable+${index * 2} | bne + | inc $variable+${index * 2 + 1} |+")
Opcode.DEC_INDEXED_VAR_W, Opcode.DEC_INDEXED_VAR_UW -> AsmFragment(" lda $variable+${index * 2} | bne + | dec $variable+${index * 2 + 1} |+ | dec $variable+${index * 2}")
Opcode.INC_INDEXED_VAR_FLOAT -> AsmFragment(
"""
lda #<($variable+${index * MachineDefinition.Mflpt5.MemorySize})
ldy #>($variable+${index * MachineDefinition.Mflpt5.MemorySize})
jsr c64flt.inc_var_f
""")
Opcode.DEC_INDEXED_VAR_FLOAT -> AsmFragment(
"""
lda #<($variable+${index * MachineDefinition.Mflpt5.MemorySize})
ldy #>($variable+${index * MachineDefinition.Mflpt5.MemorySize})
jsr c64flt.dec_var_f
""")
else -> null
}
}
private fun sameIndexedVarOperation(variable: String, indexVar: String, ins: Instruction): AsmFragment? {
// an in place operation that consists of a push-value / op / push-index-var / pop-into-indexed-var
val saveX = " stx ${MachineDefinition.C64Zeropage.SCRATCH_B1} |"
val restoreX = " | ldx ${MachineDefinition.C64Zeropage.SCRATCH_B1}"
val loadXWord: String
val loadX: String
when(indexVar) {
"X" -> {
loadX = ""
loadXWord = " txa | asl a | tax |"
}
"Y" -> {
loadX = " tya | tax |"
loadXWord = " tya | asl a | tax |"
}
"A" -> {
loadX = " tax |"
loadXWord = " asl a | tax |"
}
else -> {
// the indexvar is a real variable, not a register
loadX = " ldx $indexVar |"
loadXWord = " lda $indexVar | asl a | tax |"
}
}
return when (ins.opcode) {
Opcode.SHL_BYTE -> AsmFragment(" txa | $loadX asl $variable,x | tax", 10)
Opcode.SHR_UBYTE -> AsmFragment(" txa | $loadX lsr $variable,x | tax", 10)
Opcode.SHR_SBYTE -> AsmFragment("$saveX $loadX lda $variable,x | asl a | ror $variable,x $restoreX", 10)
Opcode.SHL_WORD -> AsmFragment("$saveX $loadXWord asl $variable,x | rol $variable+1,x $restoreX", 10)
Opcode.SHR_UWORD -> AsmFragment("$saveX $loadXWord lsr $variable+1,x | ror $variable,x $restoreX", 10)
Opcode.SHR_SWORD -> AsmFragment("$saveX $loadXWord lda $variable+1,x | asl a | ror $variable+1,x | ror $variable,x $restoreX", 10)
Opcode.ROL_BYTE -> AsmFragment(" txa | $loadX rol $variable,x | tax", 10)
Opcode.ROR_BYTE -> AsmFragment(" txa | $loadX ror $variable,x | tax", 10)
Opcode.ROL_WORD -> AsmFragment("$saveX $loadXWord rol $variable,x | rol $variable+1,x $restoreX", 10)
Opcode.ROR_WORD -> AsmFragment("$saveX $loadXWord ror $variable+1,x | ror $variable,x $restoreX", 10)
Opcode.ROL2_BYTE -> AsmFragment("$saveX $loadX lda $variable,x | cmp #\$80 | rol $variable,x $restoreX", 10)
Opcode.ROR2_BYTE -> AsmFragment("$saveX $loadX lda $variable,x | lsr a | bcc + | ora #\$80 |+ | sta $variable,x $restoreX", 10)
Opcode.ROL2_WORD -> AsmFragment(" txa | $loadXWord asl $variable,x | rol $variable+1,x | bcc + | inc $variable,x |+ | tax", 30)
Opcode.ROR2_WORD -> AsmFragment("$saveX $loadXWord lsr $variable+1,x | ror $variable,x | bcc + | lda $variable+1,x | ora #\$80 | sta $variable+1,x |+ $restoreX", 30)
Opcode.INC_INDEXED_VAR_B, Opcode.INC_INDEXED_VAR_UB -> AsmFragment(" txa | $loadX inc $variable,x | tax", 10)
Opcode.DEC_INDEXED_VAR_B, Opcode.DEC_INDEXED_VAR_UB -> AsmFragment(" txa | $loadX dec $variable,x | tax", 10)
Opcode.INC_INDEXED_VAR_W, Opcode.INC_INDEXED_VAR_UW -> AsmFragment("$saveX $loadXWord inc $variable,x | bne + | inc $variable+1,x |+ $restoreX", 10)
Opcode.DEC_INDEXED_VAR_W, Opcode.DEC_INDEXED_VAR_UW -> AsmFragment("$saveX $loadXWord lda $variable,x | bne + | dec $variable+1,x |+ | dec $variable,x $restoreX", 10)
Opcode.INC_INDEXED_VAR_FLOAT -> AsmFragment(" lda #<$variable | ldy #>$variable | $saveX $loadX jsr c64flt.inc_indexed_var_f $restoreX")
Opcode.DEC_INDEXED_VAR_FLOAT -> AsmFragment(" lda #<$variable | ldy #>$variable | $saveX $loadX jsr c64flt.dec_indexed_var_f $restoreX")
else -> null
}
}
private fun sameMemOperation(address: Int, ins: Instruction): AsmFragment? {
// an in place operation that consists of push-mem / op / pop-mem
val addr = address.toHex()
val addrHi = (address+1).toHex()
return when(ins.opcode) {
Opcode.SHL_BYTE -> AsmFragment(" asl $addr", 10)
Opcode.SHR_UBYTE -> AsmFragment(" lsr $addr", 10)
Opcode.SHR_SBYTE -> AsmFragment(" lda $addr | asl a | ror $addr", 10)
Opcode.SHL_WORD -> AsmFragment(" asl $addr | rol $addrHi", 10)
Opcode.SHR_UWORD -> AsmFragment(" lsr $addrHi | ror $addr", 10)
Opcode.SHR_SWORD -> AsmFragment(" lda $addrHi | asl a | ror $addrHi | ror $addr", 10)
Opcode.ROL_BYTE -> AsmFragment(" rol $addr", 10)
Opcode.ROR_BYTE -> AsmFragment(" ror $addr", 10)
Opcode.ROL_WORD -> AsmFragment(" rol $addr | rol $addrHi", 10)
Opcode.ROR_WORD -> AsmFragment(" ror $addrHi | ror $addr", 10)
Opcode.ROL2_BYTE -> AsmFragment(" lda $addr | cmp #\$80 | rol $addr", 10)
Opcode.ROR2_BYTE -> AsmFragment(" lda $addr | lsr a | bcc + | ora #\$80 |+ | sta $addr", 10)
Opcode.ROL2_WORD -> AsmFragment(" lda $addr | cmp #\$80 | rol $addr | rol $addrHi", 10)
Opcode.ROR2_WORD -> AsmFragment(" lsr $addrHi | ror $addr | bcc + | lda $addrHi | ora #$80 | sta $addrHi |+", 20)
else -> null
}
}
private fun sameVarOperation(variable: String, ins: Instruction): AsmFragment? {
// an in place operation that consists of a push-var / op / pop-var
return when(ins.opcode) {
Opcode.SHL_BYTE -> {
when (variable) {
"A" -> AsmFragment(" asl a", 10)
"X" -> AsmFragment(" txa | asl a | tax", 10)
"Y" -> AsmFragment(" tya | asl a | tay", 10)
else -> AsmFragment(" asl $variable", 10)
}
}
Opcode.SHR_UBYTE -> {
when (variable) {
"A" -> AsmFragment(" lsr a", 10)
"X" -> AsmFragment(" txa | lsr a | tax", 10)
"Y" -> AsmFragment(" tya | lsr a | tay", 10)
else -> AsmFragment(" lsr $variable", 10)
}
}
Opcode.SHR_SBYTE -> {
// arithmetic shift right (keep sign bit)
when (variable) {
"A" -> AsmFragment(" cmp #$80 | ror a", 10)
"X" -> AsmFragment(" txa | cmp #$80 | ror a | tax", 10)
"Y" -> AsmFragment(" tya | cmp #$80 | ror a | tay", 10)
else -> AsmFragment(" lda $variable | asl a | ror $variable", 10)
}
}
Opcode.SHL_WORD -> {
AsmFragment(" asl $variable | rol $variable+1", 10)
}
Opcode.SHR_UWORD -> {
AsmFragment(" lsr $variable+1 | ror $variable", 10)
}
Opcode.SHR_SWORD -> {
// arithmetic shift right (keep sign bit)
AsmFragment(" lda $variable+1 | asl a | ror $variable+1 | ror $variable", 10)
}
Opcode.ROL_BYTE -> {
when (variable) {
"A" -> AsmFragment(" rol a", 10)
"X" -> AsmFragment(" txa | rol a | tax", 10)
"Y" -> AsmFragment(" tya | rol a | tay", 10)
else -> AsmFragment(" rol $variable", 10)
}
}
Opcode.ROR_BYTE -> {
when (variable) {
"A" -> AsmFragment(" ror a", 10)
"X" -> AsmFragment(" txa | ror a | tax", 10)
"Y" -> AsmFragment(" tya | ror a | tay", 10)
else -> AsmFragment(" ror $variable", 10)
}
}
Opcode.ROL_WORD -> {
AsmFragment(" rol $variable | rol $variable+1", 10)
}
Opcode.ROR_WORD -> {
AsmFragment(" ror $variable+1 | ror $variable", 10)
}
Opcode.ROL2_BYTE -> { // 8-bit rol
when (variable) {
"A" -> AsmFragment(" cmp #\$80 | rol a", 10)
"X" -> AsmFragment(" txa | cmp #\$80 | rol a | tax", 10)
"Y" -> AsmFragment(" tya | cmp #\$80 | rol a | tay", 10)
else -> AsmFragment(" lda $variable | cmp #\$80 | rol $variable", 10)
}
}
Opcode.ROR2_BYTE -> { // 8-bit ror
when (variable) {
"A" -> AsmFragment(" lsr a | bcc + | ora #\$80 |+", 10)
"X" -> AsmFragment(" txa | lsr a | bcc + | ora #\$80 |+ | tax", 10)
"Y" -> AsmFragment(" tya | lsr a | bcc + | ora #\$80 |+ | tay", 10)
else -> AsmFragment(" lda $variable | lsr a | bcc + | ora #\$80 |+ | sta $variable", 10)
}
}
Opcode.ROL2_WORD -> {
AsmFragment(" lda $variable | cmp #\$80 | rol $variable | rol $variable+1", 10)
}
Opcode.ROR2_WORD -> {
AsmFragment(" lsr $variable+1 | ror $variable | bcc + | lda $variable+1 | ora #\$80 | sta $variable+1 |+", 30)
}
else -> null
}
}
private class AsmFragment(val asm: String, var segmentSize: Int=0)
}

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OldCodeGen/src/oldcodegen/AsmPatterns.kt
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OldCodeGen/src/oldcodegen/SimpleAsm.kt
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package oldcodegen
/** OLD STACK-VM CODE GEN -- NO LONGER USED **/
import prog8.compiler.CompilerException
import prog8.compiler.intermediate.Instruction
import prog8.compiler.intermediate.IntermediateProgram
import prog8.compiler.intermediate.LabelInstr
import prog8.compiler.intermediate.Opcode
import prog8.compiler.target.c64.MachineDefinition.C64Zeropage
import prog8.compiler.target.c64.MachineDefinition.ESTACK_HI_HEX
import prog8.compiler.target.c64.MachineDefinition.ESTACK_HI_PLUS1_HEX
import prog8.compiler.target.c64.MachineDefinition.ESTACK_LO_HEX
import prog8.compiler.target.c64.MachineDefinition.ESTACK_LO_PLUS1_HEX
import prog8.compiler.target.c64.MachineDefinition.ESTACK_LO_PLUS2_HEX
import prog8.compiler.toHex
import prog8.vm.stackvm.Syscall
import prog8.vm.stackvm.syscallsForStackVm
// note: see https://wiki.nesdev.com/w/index.php/6502_assembly_optimisations
private var breakpointCounter = 0
internal fun simpleInstr2Asm(ins: Instruction, block: IntermediateProgram.ProgramBlock): String? {
// a label 'instruction' is simply translated into a asm label
if(ins is LabelInstr) {
val labelresult =
if(ins.name.startsWith("${block.name}."))
ins.name.substring(block.name.length+1)
else
ins.name
return if(ins.asmProc) labelresult+"\t\t.proc" else labelresult
}
// simple opcodes that are translated directly into one or a few asm instructions
return when(ins.opcode) {
Opcode.LINE -> " ;\tsrc line: ${ins.callLabel}"
Opcode.NOP -> " nop" // shouldn't be present anymore though
Opcode.START_PROCDEF -> "" // is done as part of a label
Opcode.END_PROCDEF -> " .pend"
Opcode.TERMINATE -> " brk"
Opcode.SEC -> " sec"
Opcode.CLC -> " clc"
Opcode.SEI -> " sei"
Opcode.CLI -> " cli"
Opcode.CARRY_TO_A -> " lda #0 | adc #0"
Opcode.JUMP -> {
if(ins.callLabel!=null)
" jmp ${ins.callLabel}"
else
" jmp ${hexVal(ins)}"
}
Opcode.CALL -> {
if(ins.callLabel!=null)
" jsr ${ins.callLabel}"
else
" jsr ${hexVal(ins)}"
}
Opcode.RETURN -> " rts"
Opcode.RSAVE -> {
// save cpu status flag and all registers A, X, Y.
// see http://6502.org/tutorials/register_preservation.html
" php | sta ${C64Zeropage.SCRATCH_REG} | pha | txa | pha | tya | pha | lda ${C64Zeropage.SCRATCH_REG}"
}
Opcode.RRESTORE -> {
// restore all registers and cpu status flag
" pla | tay | pla | tax | pla | plp"
}
Opcode.RSAVEX -> " sta ${C64Zeropage.SCRATCH_REG} | txa | pha | lda ${C64Zeropage.SCRATCH_REG}"
Opcode.RRESTOREX -> " sta ${C64Zeropage.SCRATCH_REG} | pla | tax | lda ${C64Zeropage.SCRATCH_REG}"
Opcode.DISCARD_BYTE -> " inx"
Opcode.DISCARD_WORD -> " inx"
Opcode.DISCARD_FLOAT -> " inx | inx | inx"
Opcode.DUP_B -> {
" lda $ESTACK_LO_PLUS1_HEX,x | sta $ESTACK_LO_HEX,x | dex | ;DUP_B "
}
Opcode.DUP_W -> {
" lda $ESTACK_LO_PLUS1_HEX,x | sta $ESTACK_LO_HEX,x | lda $ESTACK_HI_PLUS1_HEX,x | sta $ESTACK_HI_HEX,x | dex "
}
Opcode.CMP_B, Opcode.CMP_UB -> {
" inx | lda $ESTACK_LO_HEX,x | cmp #${ins.arg!!.integerValue().toHex()} | ;CMP_B "
}
Opcode.CMP_W, Opcode.CMP_UW -> {
"""
inx
lda $ESTACK_HI_HEX,x
cmp #>${ins.arg!!.integerValue().toHex()}
bne +
lda $ESTACK_LO_HEX,x
cmp #<${ins.arg.integerValue().toHex()}
; bne + not necessary?
; lda #0 not necessary?
+
"""
}
Opcode.INLINE_ASSEMBLY -> "@inline@" + (ins.callLabel2 ?: "") // All of the inline assembly is stored in the calllabel2 property. the '@inline@' is a special marker to accept it.
Opcode.INCLUDE_FILE -> {
val offset = if(ins.arg==null) "" else ", ${ins.arg.integerValue()}"
val length = if(ins.arg2==null) "" else ", ${ins.arg2.integerValue()}"
" .binary \"${ins.callLabel}\" $offset $length"
}
Opcode.SYSCALL -> {
if (ins.arg!!.numericValue() in syscallsForStackVm.map { it.callNr })
throw CompilerException("cannot translate vm syscalls to real assembly calls - use *real* subroutine calls instead. Syscall ${ins.arg.numericValue()}")
val call = Syscall.values().find { it.callNr==ins.arg.numericValue() }
when(call) {
Syscall.FUNC_SIN,
Syscall.FUNC_COS,
Syscall.FUNC_ABS,
Syscall.FUNC_TAN,
Syscall.FUNC_ATAN,
Syscall.FUNC_LN,
Syscall.FUNC_LOG2,
Syscall.FUNC_SQRT,
Syscall.FUNC_RAD,
Syscall.FUNC_DEG,
Syscall.FUNC_ROUND,
Syscall.FUNC_FLOOR,
Syscall.FUNC_CEIL,
Syscall.FUNC_RNDF,
Syscall.FUNC_ANY_F,
Syscall.FUNC_ALL_F,
Syscall.FUNC_MAX_F,
Syscall.FUNC_MIN_F,
Syscall.FUNC_SUM_F -> " jsr c64flt.${call.name.toLowerCase()}"
null -> ""
else -> " jsr prog8_lib.${call.name.toLowerCase()}"
}
}
Opcode.BREAKPOINT -> {
breakpointCounter++
"_prog8_breakpoint_$breakpointCounter\tnop"
}
Opcode.PUSH_BYTE -> {
" lda #${hexVal(ins)} | sta $ESTACK_LO_HEX,x | dex"
}
Opcode.PUSH_WORD -> {
val value = hexVal(ins)
" lda #<$value | sta $ESTACK_LO_HEX,x | lda #>$value | sta $ESTACK_HI_HEX,x | dex"
}
Opcode.PUSH_FLOAT -> {
val floatConst = getFloatConst(ins.arg!!)
" lda #<$floatConst | ldy #>$floatConst | jsr c64flt.push_float"
}
Opcode.PUSH_VAR_BYTE -> {
when(ins.callLabel) {
"X" -> throw CompilerException("makes no sense to push X, it's used as a stack pointer itself. You should probably not use the X register (or only in trivial assignments)")
"A" -> " sta $ESTACK_LO_HEX,x | dex"
"Y" -> " tya | sta $ESTACK_LO_HEX,x | dex"
else -> " lda ${ins.callLabel} | sta $ESTACK_LO_HEX,x | dex"
}
}
Opcode.PUSH_VAR_WORD -> {
" lda ${ins.callLabel} | sta $ESTACK_LO_HEX,x | lda ${ins.callLabel}+1 | sta $ESTACK_HI_HEX,x | dex"
}
Opcode.PUSH_VAR_FLOAT -> " lda #<${ins.callLabel} | ldy #>${ins.callLabel}| jsr c64flt.push_float"
Opcode.PUSH_MEM_B, Opcode.PUSH_MEM_UB -> {
"""
lda ${hexVal(ins)}
sta $ESTACK_LO_HEX,x
dex
"""
}
Opcode.PUSH_MEM_W, Opcode.PUSH_MEM_UW -> {
"""
lda ${hexVal(ins)}
sta $ESTACK_LO_HEX,x
lda ${hexValPlusOne(ins)}
sta $ESTACK_HI_HEX,x
dex
"""
}
Opcode.PUSH_MEM_FLOAT -> {
" lda #<${hexVal(ins)} | ldy #>${hexVal(ins)}| jsr c64flt.push_float"
}
Opcode.PUSH_MEMREAD -> {
"""
lda $ESTACK_LO_PLUS1_HEX,x
sta (+) +1
lda $ESTACK_HI_PLUS1_HEX,x
sta (+) +2
+ lda 65535 ; modified
sta $ESTACK_LO_PLUS1_HEX,x
"""
}
Opcode.PUSH_REGAY_WORD -> {
" sta $ESTACK_LO_HEX,x | tya | sta $ESTACK_HI_HEX,x | dex "
}
Opcode.PUSH_ADDR_HEAPVAR -> {
" lda #<${ins.callLabel} | sta $ESTACK_LO_HEX,x | lda #>${ins.callLabel} | sta $ESTACK_HI_HEX,x | dex"
}
Opcode.POP_REGAX_WORD -> throw AssemblyError("cannot load X register from stack because it's used as the stack pointer itself")
Opcode.POP_REGXY_WORD -> throw AssemblyError("cannot load X register from stack because it's used as the stack pointer itself")
Opcode.POP_REGAY_WORD -> {
" inx | lda $ESTACK_LO_HEX,x | ldy $ESTACK_HI_HEX,x "
}
Opcode.READ_INDEXED_VAR_BYTE -> {
"""
ldy $ESTACK_LO_PLUS1_HEX,x
lda ${ins.callLabel},y
sta $ESTACK_LO_PLUS1_HEX,x
"""
}
Opcode.READ_INDEXED_VAR_WORD -> {
"""
lda $ESTACK_LO_PLUS1_HEX,x
asl a
tay
lda ${ins.callLabel},y
sta $ESTACK_LO_PLUS1_HEX,x
lda ${ins.callLabel}+1,y
sta $ESTACK_HI_PLUS1_HEX,x
"""
}
Opcode.READ_INDEXED_VAR_FLOAT -> {
"""
lda #<${ins.callLabel}
ldy #>${ins.callLabel}
jsr c64flt.push_float_from_indexed_var
"""
}
Opcode.WRITE_INDEXED_VAR_BYTE -> {
"""
inx
ldy $ESTACK_LO_HEX,x
inx
lda $ESTACK_LO_HEX,x
sta ${ins.callLabel},y
"""
}
Opcode.WRITE_INDEXED_VAR_WORD -> {
"""
inx
lda $ESTACK_LO_HEX,x
asl a
tay
inx
lda $ESTACK_LO_HEX,x
sta ${ins.callLabel},y
lda $ESTACK_HI_HEX,x
sta ${ins.callLabel}+1,y
"""
}
Opcode.WRITE_INDEXED_VAR_FLOAT -> {
"""
lda #<${ins.callLabel}
ldy #>${ins.callLabel}
jsr c64flt.pop_float_to_indexed_var
"""
}
Opcode.POP_MEM_BYTE -> {
"""
inx
lda $ESTACK_LO_HEX,x
sta ${hexVal(ins)}
"""
}
Opcode.POP_MEM_WORD -> {
"""
inx
lda $ESTACK_LO_HEX,x
sta ${hexVal(ins)}
lda $ESTACK_HI_HEX,x
sta ${hexValPlusOne(ins)}
"""
}
Opcode.POP_MEM_FLOAT -> {
" lda ${hexVal(ins)} | ldy ${hexValPlusOne(ins)} | jsr c64flt.pop_float"
}
Opcode.POP_MEMWRITE -> {
"""
inx
lda $ESTACK_LO_HEX,x
sta (+) +1
lda $ESTACK_HI_HEX,x
sta (+) +2
inx
lda $ESTACK_LO_HEX,x
+ sta 65535 ; modified
"""
}
Opcode.POP_VAR_BYTE -> {
when (ins.callLabel) {
"X" -> throw CompilerException("makes no sense to pop X, it's used as a stack pointer itself")
"A" -> " inx | lda $ESTACK_LO_HEX,x"
"Y" -> " inx | ldy $ESTACK_LO_HEX,x"
else -> " inx | lda $ESTACK_LO_HEX,x | sta ${ins.callLabel}"
}
}
Opcode.POP_VAR_WORD -> {
" inx | lda $ESTACK_LO_HEX,x | ldy $ESTACK_HI_HEX,x | sta ${ins.callLabel} | sty ${ins.callLabel}+1"
}
Opcode.POP_VAR_FLOAT -> {
" lda #<${ins.callLabel} | ldy #>${ins.callLabel} | jsr c64flt.pop_float"
}
Opcode.INC_VAR_UB, Opcode.INC_VAR_B -> {
when (ins.callLabel) {
"A" -> " clc | adc #1"
"X" -> " inx"
"Y" -> " iny"
else -> " inc ${ins.callLabel}"
}
}
Opcode.INC_VAR_UW, Opcode.INC_VAR_W -> {
" inc ${ins.callLabel} | bne + | inc ${ins.callLabel}+1 |+"
}
Opcode.INC_VAR_F -> {
"""
lda #<${ins.callLabel}
ldy #>${ins.callLabel}
jsr c64flt.inc_var_f
"""
}
Opcode.POP_INC_MEMORY -> {
"""
inx
lda $ESTACK_LO_HEX,x
sta (+) +1
lda $ESTACK_HI_HEX,x
sta (+) +2
+ inc 65535 ; modified
"""
}
Opcode.POP_DEC_MEMORY -> {
"""
inx
lda $ESTACK_LO_HEX,x
sta (+) +1
lda $ESTACK_HI_HEX,x
sta (+) +2
+ dec 65535 ; modified
"""
}
Opcode.DEC_VAR_UB, Opcode.DEC_VAR_B -> {
when (ins.callLabel) {
"A" -> " sec | sbc #1"
"X" -> " dex"
"Y" -> " dey"
else -> " dec ${ins.callLabel}"
}
}
Opcode.DEC_VAR_UW, Opcode.DEC_VAR_W -> {
" lda ${ins.callLabel} | bne + | dec ${ins.callLabel}+1 |+ | dec ${ins.callLabel}"
}
Opcode.DEC_VAR_F -> {
"""
lda #<${ins.callLabel}
ldy #>${ins.callLabel}
jsr c64flt.dec_var_f
"""
}
Opcode.INC_MEMORY -> " inc ${hexVal(ins)}"
Opcode.DEC_MEMORY -> " dec ${hexVal(ins)}"
Opcode.INC_INDEXED_VAR_B, Opcode.INC_INDEXED_VAR_UB -> " inx | txa | pha | lda $ESTACK_LO_HEX,x | tax | inc ${ins.callLabel},x | pla | tax"
Opcode.DEC_INDEXED_VAR_B, Opcode.DEC_INDEXED_VAR_UB -> " inx | txa | pha | lda $ESTACK_LO_HEX,x | tax | dec ${ins.callLabel},x | pla | tax"
Opcode.NEG_B -> " jsr prog8_lib.neg_b"
Opcode.NEG_W -> " jsr prog8_lib.neg_w"
Opcode.NEG_F -> " jsr c64flt.neg_f"
Opcode.ABS_B -> " jsr prog8_lib.abs_b"
Opcode.ABS_W -> " jsr prog8_lib.abs_w"
Opcode.ABS_F -> " jsr c64flt.abs_f"
Opcode.POW_F -> " jsr c64flt.pow_f"
Opcode.INV_BYTE -> {
"""
lda $ESTACK_LO_PLUS1_HEX,x
eor #255
sta $ESTACK_LO_PLUS1_HEX,x
"""
}
Opcode.INV_WORD -> " jsr prog8_lib.inv_word"
Opcode.NOT_BYTE -> " jsr prog8_lib.not_byte"
Opcode.NOT_WORD -> " jsr prog8_lib.not_word"
Opcode.BCS -> {
val label = ins.callLabel ?: hexVal(ins)
" bcs $label"
}
Opcode.BCC -> {
val label = ins.callLabel ?: hexVal(ins)
" bcc $label"
}
Opcode.BNEG -> {
val label = ins.callLabel ?: hexVal(ins)
" bmi $label"
}
Opcode.BPOS -> {
val label = ins.callLabel ?: hexVal(ins)
" bpl $label"
}
Opcode.BVC -> {
val label = ins.callLabel ?: hexVal(ins)
" bvc $label"
}
Opcode.BVS -> {
val label = ins.callLabel ?: hexVal(ins)
" bvs $label"
}
Opcode.BZ -> {
val label = ins.callLabel ?: hexVal(ins)
" beq $label"
}
Opcode.BNZ -> {
val label = ins.callLabel ?: hexVal(ins)
" bne $label"
}
Opcode.JZ -> {
val label = ins.callLabel ?: hexVal(ins)
"""
inx
lda $ESTACK_LO_HEX,x
beq $label
"""
}
Opcode.JZW -> {
val label = ins.callLabel ?: hexVal(ins)
"""
inx
lda $ESTACK_LO_HEX,x
beq $label
lda $ESTACK_HI_HEX,x
beq $label
"""
}
Opcode.JNZ -> {
val label = ins.callLabel ?: hexVal(ins)
"""
inx
lda $ESTACK_LO_HEX,x
bne $label
"""
}
Opcode.JNZW -> {
val label = ins.callLabel ?: hexVal(ins)
"""
inx
lda $ESTACK_LO_HEX,x
bne $label
lda $ESTACK_HI_HEX,x
bne $label
"""
}
Opcode.CAST_B_TO_UB -> "" // is a no-op, just carry on with the byte as-is
Opcode.CAST_UB_TO_B -> "" // is a no-op, just carry on with the byte as-is
Opcode.CAST_W_TO_UW -> "" // is a no-op, just carry on with the word as-is
Opcode.CAST_UW_TO_W -> "" // is a no-op, just carry on with the word as-is
Opcode.CAST_W_TO_UB -> "" // is a no-op, just carry on with the lsb of the word as-is
Opcode.CAST_W_TO_B -> "" // is a no-op, just carry on with the lsb of the word as-is
Opcode.CAST_UW_TO_UB -> "" // is a no-op, just carry on with the lsb of the uword as-is
Opcode.CAST_UW_TO_B -> "" // is a no-op, just carry on with the lsb of the uword as-is
Opcode.CAST_UB_TO_F -> " jsr c64flt.stack_ub2float"
Opcode.CAST_B_TO_F -> " jsr c64flt.stack_b2float"
Opcode.CAST_UW_TO_F -> " jsr c64flt.stack_uw2float"
Opcode.CAST_W_TO_F -> " jsr c64flt.stack_w2float"
Opcode.CAST_F_TO_UB -> " jsr c64flt.stack_float2ub"
Opcode.CAST_F_TO_B -> " jsr c64flt.stack_float2b"
Opcode.CAST_F_TO_UW -> " jsr c64flt.stack_float2uw"
Opcode.CAST_F_TO_W -> " jsr c64flt.stack_float2w"
Opcode.CAST_UB_TO_UW, Opcode.CAST_UB_TO_W -> " lda #0 | sta $ESTACK_HI_PLUS1_HEX,x" // clear the msb
Opcode.CAST_B_TO_UW, Opcode.CAST_B_TO_W -> " lda $ESTACK_LO_PLUS1_HEX,x | ${signExtendA("$ESTACK_HI_PLUS1_HEX,x")}" // sign extend the lsb
Opcode.MSB -> " lda $ESTACK_HI_PLUS1_HEX,x | sta $ESTACK_LO_PLUS1_HEX,x"
Opcode.MKWORD -> " inx | lda $ESTACK_LO_HEX,x | sta $ESTACK_HI_PLUS1_HEX,x "
Opcode.ADD_UB, Opcode.ADD_B -> { // TODO inline better (pattern with more opcodes)
"""
lda $ESTACK_LO_PLUS2_HEX,x
clc
adc $ESTACK_LO_PLUS1_HEX,x
inx
sta $ESTACK_LO_PLUS1_HEX,x
"""
}
Opcode.SUB_UB, Opcode.SUB_B -> { // TODO inline better (pattern with more opcodes)
"""
lda $ESTACK_LO_PLUS2_HEX,x
sec
sbc $ESTACK_LO_PLUS1_HEX,x
inx
sta $ESTACK_LO_PLUS1_HEX,x
"""
}
Opcode.ADD_W, Opcode.ADD_UW -> " jsr prog8_lib.add_w"
Opcode.SUB_W, Opcode.SUB_UW -> " jsr prog8_lib.sub_w"
Opcode.MUL_B, Opcode.MUL_UB -> " jsr prog8_lib.mul_byte"
Opcode.MUL_W, Opcode.MUL_UW -> " jsr prog8_lib.mul_word"
Opcode.MUL_F -> " jsr c64flt.mul_f"
Opcode.ADD_F -> " jsr c64flt.add_f"
Opcode.SUB_F -> " jsr c64flt.sub_f"
Opcode.DIV_F -> " jsr c64flt.div_f"
Opcode.IDIV_UB -> " jsr prog8_lib.idiv_ub"
Opcode.IDIV_B -> " jsr prog8_lib.idiv_b"
Opcode.IDIV_W -> " jsr prog8_lib.idiv_w"
Opcode.IDIV_UW -> " jsr prog8_lib.idiv_uw"
Opcode.AND_BYTE -> " jsr prog8_lib.and_b"
Opcode.OR_BYTE -> " jsr prog8_lib.or_b"
Opcode.XOR_BYTE -> " jsr prog8_lib.xor_b"
Opcode.AND_WORD -> " jsr prog8_lib.and_w"
Opcode.OR_WORD -> " jsr prog8_lib.or_w"
Opcode.XOR_WORD -> " jsr prog8_lib.xor_w"
Opcode.BITAND_BYTE -> " jsr prog8_lib.bitand_b"
Opcode.BITOR_BYTE -> " jsr prog8_lib.bitor_b"
Opcode.BITXOR_BYTE -> " jsr prog8_lib.bitxor_b"
Opcode.BITAND_WORD -> " jsr prog8_lib.bitand_w"
Opcode.BITOR_WORD -> " jsr prog8_lib.bitor_w"
Opcode.BITXOR_WORD -> " jsr prog8_lib.bitxor_w"
Opcode.REMAINDER_UB -> " jsr prog8_lib.remainder_ub"
Opcode.REMAINDER_UW -> " jsr prog8_lib.remainder_uw"
Opcode.GREATER_B -> " jsr prog8_lib.greater_b"
Opcode.GREATER_UB -> " jsr prog8_lib.greater_ub"
Opcode.GREATER_W -> " jsr prog8_lib.greater_w"
Opcode.GREATER_UW -> " jsr prog8_lib.greater_uw"
Opcode.GREATER_F -> " jsr c64flt.greater_f"
Opcode.GREATEREQ_B -> " jsr prog8_lib.greatereq_b"
Opcode.GREATEREQ_UB -> " jsr prog8_lib.greatereq_ub"
Opcode.GREATEREQ_W -> " jsr prog8_lib.greatereq_w"
Opcode.GREATEREQ_UW -> " jsr prog8_lib.greatereq_uw"
Opcode.GREATEREQ_F -> " jsr c64flt.greatereq_f"
Opcode.EQUAL_BYTE -> " jsr prog8_lib.equal_b"
Opcode.EQUAL_WORD -> " jsr prog8_lib.equal_w"
Opcode.EQUAL_F -> " jsr c64flt.equal_f"
Opcode.NOTEQUAL_BYTE -> " jsr prog8_lib.notequal_b"
Opcode.NOTEQUAL_WORD -> " jsr prog8_lib.notequal_w"
Opcode.NOTEQUAL_F -> " jsr c64flt.notequal_f"
Opcode.LESS_UB -> " jsr prog8_lib.less_ub"
Opcode.LESS_B -> " jsr prog8_lib.less_b"
Opcode.LESS_UW -> " jsr prog8_lib.less_uw"
Opcode.LESS_W -> " jsr prog8_lib.less_w"
Opcode.LESS_F -> " jsr c64flt.less_f"
Opcode.LESSEQ_UB -> " jsr prog8_lib.lesseq_ub"
Opcode.LESSEQ_B -> " jsr prog8_lib.lesseq_b"
Opcode.LESSEQ_UW -> " jsr prog8_lib.lesseq_uw"
Opcode.LESSEQ_W -> " jsr prog8_lib.lesseq_w"
Opcode.LESSEQ_F -> " jsr c64flt.lesseq_f"
Opcode.SHIFTEDL_BYTE -> " asl $ESTACK_LO_PLUS1_HEX,x"
Opcode.SHIFTEDL_WORD -> " asl $ESTACK_LO_PLUS1_HEX,x | rol $ESTACK_HI_PLUS1_HEX,x"
Opcode.SHIFTEDR_SBYTE -> " lda $ESTACK_LO_PLUS1_HEX,x | asl a | ror $ESTACK_LO_PLUS1_HEX,x"
Opcode.SHIFTEDR_UBYTE -> " lsr $ESTACK_LO_PLUS1_HEX,x"
Opcode.SHIFTEDR_SWORD -> " lda $ESTACK_HI_PLUS1_HEX,x | asl a | ror $ESTACK_HI_PLUS1_HEX,x | ror $ESTACK_LO_PLUS1_HEX,x"
Opcode.SHIFTEDR_UWORD -> " lsr $ESTACK_HI_PLUS1_HEX,x | ror $ESTACK_LO_PLUS1_HEX,x"
else -> null
}
}

1
gradle.properties
View File

@ -1,7 +1,6 @@
org.gradle.caching=true
org.gradle.console=rich
org.gradle.parallel=true
org.gradle.jvmargs=-Xmx2500M
org.gradle.daemon=true
kotlinVersion=1.3.61