mirror of
https://github.com/irmen/prog8.git
synced 2024-09-29 08:57:51 +00:00
fix and optimize storing A into pointervar
This commit is contained in:
Irmen de Jong
parent
b867d8f731
commit
e545ea9504
@ -604,6 +604,45 @@ class AsmGen(private val program: Program,
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}
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}
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internal fun storeAIntoPointerVar(pointervar: IdentifierReference) {
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val sourceName = asmVariableName(pointervar)
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val vardecl = pointervar.targetVarDecl(program)!!
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val scopedName = vardecl.scopedName.joinToString(".")
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if (isTargetCpu(CpuType.CPU65c02)) {
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if (isZpVar(scopedName)) {
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// pointervar is already in the zero page, no need to copy
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out(" sta ($sourceName)")
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} else {
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out("""
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ldy $sourceName
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sty P8ZP_SCRATCH_W2
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ldy $sourceName+1
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sty P8ZP_SCRATCH_W2+1
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sta (P8ZP_SCRATCH_W2)""")
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}
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} else {
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if (isZpVar(scopedName)) {
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// pointervar is already in the zero page, no need to copy
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out(" ldy #0 | sta ($sourceName),y")
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} else {
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out("""
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ldy $sourceName
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sty P8ZP_SCRATCH_W2
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ldy $sourceName+1
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sty P8ZP_SCRATCH_W2+1
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ldy #0
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sta (P8ZP_SCRATCH_W2),y""")
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}
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}
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}
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internal fun storeAIntoZpPointerVar(zpPointerVar: String) {
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if (isTargetCpu(CpuType.CPU65c02))
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out(" sta ($zpPointerVar)")
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else
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out(" ldy #0 | sta ($zpPointerVar),y")
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}
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private fun fixNameSymbols(name: String): String {
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val name2 = name.replace("<", "prog8_").replace(">", "") // take care of the autogenerated invalid (anon) label names
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return name2.replace("prog8_lib.P8ZP_SCRATCH_", "P8ZP_SCRATCH_") // take care of the 'hooks' to the temp vars
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@ -2140,52 +2140,14 @@ internal class AssignmentAsmGen(private val program: Program, private val asmgen
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when(addressExpr) {
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is NumericLiteralValue, is IdentifierReference -> {
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assignExpressionToVariable(addressExpr, "P8ZP_SCRATCH_W2", DataType.UWORD, null)
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if (asmgen.isTargetCpu(CpuType.CPU65c02))
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asmgen.out(" sta (P8ZP_SCRATCH_W2)")
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else
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asmgen.out(" ldy #0 | sta (P8ZP_SCRATCH_W2),y")
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asmgen.storeAIntoZpPointerVar("P8ZP_SCRATCH_W2")
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}
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else -> {
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// same as above but we need to save the A register
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asmgen.out(" pha")
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assignExpressionToVariable(addressExpr, "P8ZP_SCRATCH_W2", DataType.UWORD, null)
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asmgen.out(" pla")
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if (asmgen.isTargetCpu(CpuType.CPU65c02))
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asmgen.out(" sta (P8ZP_SCRATCH_W2)")
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else
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asmgen.out(" ldy #0 | sta (P8ZP_SCRATCH_W2),y")
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}
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}
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}
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fun storeAIntoPointerVar(pointervar: IdentifierReference) {
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val sourceName = asmgen.asmVariableName(pointervar)
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val vardecl = pointervar.targetVarDecl(program)!!
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val scopedName = vardecl.scopedName.joinToString(".")
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if (asmgen.isTargetCpu(CpuType.CPU65c02)) {
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if (asmgen.isZpVar(scopedName)) {
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// pointervar is already in the zero page, no need to copy
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asmgen.out(" sta ($sourceName)")
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} else {
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asmgen.out("""
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ldy $sourceName
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sty P8ZP_SCRATCH_W2
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ldy $sourceName+1
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sty P8ZP_SCRATCH_W2+1
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sta (P8ZP_SCRATCH_W2)""")
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}
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} else {
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if (asmgen.isZpVar(scopedName)) {
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// pointervar is already in the zero page, no need to copy
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asmgen.out(" ldy #0 | sta ($sourceName),y")
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} else {
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asmgen.out("""
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ldy $sourceName
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sty P8ZP_SCRATCH_W2
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ldy $sourceName+1
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sty P8ZP_SCRATCH_W2+1
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ldy #0
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sta (P8ZP_SCRATCH_W2),y""")
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asmgen.storeAIntoZpPointerVar("P8ZP_SCRATCH_W2")
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}
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}
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}
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@ -2195,7 +2157,7 @@ internal class AssignmentAsmGen(private val program: Program, private val asmgen
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asmgen.out(" sta ${addressLv.number.toHex()}")
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}
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addressExpr is IdentifierReference -> {
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storeAIntoPointerVar(addressExpr)
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asmgen.storeAIntoPointerVar(addressExpr)
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}
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addressExpr is BinaryExpression -> {
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if(!asmgen.tryOptimizedPointerAccessWithA(addressExpr, true))
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@ -372,9 +372,9 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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// note: ** (power) operator requires floats.
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"+" -> asmgen.out(" clc | adc P8ZP_SCRATCH_B1")
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"-" -> asmgen.out(" sec | sbc P8ZP_SCRATCH_B1")
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"*" -> asmgen.out(" ldy P8ZP_SCRATCH_B1 | jsr math.multiply_bytes | ldy #0")
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"/" -> asmgen.out(" ldy P8ZP_SCRATCH_B1 | jsr math.divmod_ub_asm | tya | ldy #0")
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"%" -> asmgen.out(" ldy P8ZP_SCRATCH_B1 | jsr math.divmod_ub_asm | ldy #0")
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"*" -> asmgen.out(" ldy P8ZP_SCRATCH_B1 | jsr math.multiply_bytes")
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"/" -> asmgen.out(" ldy P8ZP_SCRATCH_B1 | jsr math.divmod_ub_asm | tya")
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"%" -> asmgen.out(" ldy P8ZP_SCRATCH_B1 | jsr math.divmod_ub_asm")
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"<<" -> {
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asmgen.out("""
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ldy P8ZP_SCRATCH_B1
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@ -398,8 +398,9 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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"^", "xor" -> asmgen.out(" eor P8ZP_SCRATCH_B1")
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else -> throw AssemblyError("invalid operator for in-place modification $operator")
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}
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// TODO THIS IS WRONG:????
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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asmgen.out(" sta ($sourceName),y")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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private fun inplaceModification_byte_variable_to_pointer(pointervar: IdentifierReference, operator: String, value: IdentifierReference) {
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@ -410,9 +411,9 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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// note: ** (power) operator requires floats.
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"+" -> asmgen.out(" clc | adc $otherName")
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"-" -> asmgen.out(" sec | sbc $otherName")
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"*" -> asmgen.out(" ldy $otherName | jsr math.multiply_bytes | ldy #0")
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"/" -> asmgen.out(" ldy $otherName | jsr math.divmod_ub_asm | tya | ldy #0")
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"%" -> asmgen.out(" ldy $otherName | jsr math.divmod_ub_asm | ldy #0")
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"*" -> asmgen.out(" ldy $otherName | jsr math.multiply_bytes")
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"/" -> asmgen.out(" ldy $otherName | jsr math.divmod_ub_asm | tya")
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"%" -> asmgen.out(" ldy $otherName | jsr math.divmod_ub_asm")
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"<<" -> {
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asmgen.out("""
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ldy $otherName
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@ -436,7 +437,7 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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"^", "xor" -> asmgen.out(" eor $otherName")
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else -> throw AssemblyError("invalid operator for in-place modification $operator")
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}
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asmgen.out(" sta ($sourceName),y")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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private fun inplaceModification_byte_litval_to_pointer(pointervar: IdentifierReference, operator: String, value: Int) {
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@ -445,63 +446,63 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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"+" -> {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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asmgen.out(" clc | adc #$value")
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asmgen.out(" sta ($sourceName),y")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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"-" -> {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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asmgen.out(" sec | sbc #$value")
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asmgen.out(" sta ($sourceName),y")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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"*" -> {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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if(value in asmgen.optimizedByteMultiplications)
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asmgen.out(" jsr math.mul_byte_${value}")
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else
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asmgen.out(" ldy #$value | jsr math.multiply_bytes | ldy #0")
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asmgen.out(" sta ($sourceName),y")
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asmgen.out(" ldy #$value | jsr math.multiply_bytes")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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"/" -> {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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if(value==0)
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throw AssemblyError("division by zero")
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asmgen.out(" ldy #$value | jsr math.divmod_ub_asm | tya | ldy #0")
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asmgen.out(" sta ($sourceName),y")
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asmgen.out(" ldy #$value | jsr math.divmod_ub_asm | tya")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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"%" -> {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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if(value==0)
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throw AssemblyError("division by zero")
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asmgen.out(" ldy #$value | jsr math.divmod_ub_asm | ldy #0")
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asmgen.out(" sta ($sourceName),y")
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asmgen.out(" ldy #$value | jsr math.divmod_ub_asm")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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"<<" -> {
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if (value > 0) {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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repeat(value) { asmgen.out(" asl a") }
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asmgen.out(" sta ($sourceName),y")
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repeat(value) { asmgen.out(" asl a") }
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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}
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">>" -> {
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if (value > 0) {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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repeat(value) { asmgen.out(" lsr a") }
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asmgen.out(" sta ($sourceName),y")
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repeat(value) { asmgen.out(" lsr a") }
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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}
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"&", "and" -> {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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asmgen.out(" and #$value")
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asmgen.out(" sta ($sourceName),y")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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"|", "or" -> {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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asmgen.out(" ora #$value")
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asmgen.out(" sta ($sourceName),y")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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"^", "xor" -> {
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val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
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asmgen.out(" eor #$value")
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asmgen.out(" sta ($sourceName),y")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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else -> throw AssemblyError("invalid operator for in-place modification $operator")
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}
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@ -1811,7 +1812,7 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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beq +
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lda #1
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+ eor #1""")
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asmgen.out(" sta ($sourceName),y")
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asmgen.storeAIntoZpPointerVar(sourceName)
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}
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else -> {
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asmgen.assignExpressionToVariable(mem.addressExpression, "P8ZP_SCRATCH_W2", DataType.UWORD, target.scope)
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@ -1820,8 +1821,8 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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lda (P8ZP_SCRATCH_W2),y
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beq +
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lda #1
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+ eor #1
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sta (P8ZP_SCRATCH_W2),y""")
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+ eor #1""")
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asmgen.storeAIntoZpPointerVar("P8ZP_SCRATCH_W2")
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}
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}
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}
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@ -1942,8 +1943,8 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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asmgen.out("""
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ldy #0
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lda (P8ZP_SCRATCH_W2),y
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eor #255
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sta (P8ZP_SCRATCH_W2),y""")
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eor #255""")
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asmgen.storeAIntoZpPointerVar("P8ZP_SCRATCH_W2")
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}
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}
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}
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@ -73,6 +73,7 @@ X = BinExpr X = LeftExpr
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// )
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}
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// TODO breaks imageviewer EHB palette
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if(binExpr.right.isSimple) {
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val firstAssign = Assignment(assignment.target.copy(), binExpr.left, binExpr.left.position)
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val targetExpr = assignment.target.toExpression()
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@ -3,6 +3,10 @@ TODO
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For next compiler release (7.5)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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BUG: imageviewer.p8 iff loader: winterqueen.iff (EHB image) is not displayed correctly!
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--> make_ehb_palette() is wrong with optimizations, ok without.
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--> caused by splitBinaryExpressions()
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...
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@ -3,15 +3,41 @@
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main {
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ubyte[64*3] palette
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sub start() {
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uword scrpos = $0400
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repeat 256 {
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@(scrpos) = 81
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scrpos++
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ubyte i
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for i in 0 to len(palette)-1 {
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palette[i] = 15
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}
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txt.print_uw(scrpos)
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for i in 0 to len(palette)-1 {
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txt.print_ubhex(palette[i], false)
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}
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txt.nl()
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make_ehb_palette()
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for i in 0 to len(palette)-1 {
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txt.print_ubhex(palette[i], false)
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}
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txt.nl()
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}
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sub make_ehb_palette() {
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; generate 32 additional Extra-Halfbrite colors in the cmap
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uword palletteptr = &palette
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uword ehbptr = palletteptr + 32*3
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repeat 32 {
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@(ehbptr) = @(palletteptr)>>1
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ehbptr++
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palletteptr++
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@(ehbptr) = @(palletteptr)>>1
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ehbptr++
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palletteptr++
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@(ehbptr) = @(palletteptr)>>1
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ehbptr++
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palletteptr++
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}
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}
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}
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