mirror of
https://github.com/irmen/prog8.git
synced 2024-12-24 01:29:28 +00:00
fixed and optimized pointervar indexed in-place operations
This commit is contained in:
Irmen de Jong
parent
e63a8f0c01
commit
820541e427
@ -382,21 +382,18 @@ private fun optimizeStoreLoadSame(
|
||||
machine: IMachineDefinition,
|
||||
symbolTable: SymbolTable
|
||||
): List<Modification> {
|
||||
// sta X + lda X, sty X + ldy X, stx X + ldx X -> the second instruction can OFTEN be eliminated
|
||||
val mods = mutableListOf<Modification>()
|
||||
for (lines in linesByFour) {
|
||||
val first = lines[1].value.trimStart()
|
||||
val second = lines[2].value.trimStart()
|
||||
|
||||
// sta X + lda X, sty X + ldy X, stx X + ldx X -> the second instruction can OFTEN be eliminated
|
||||
if ((first.startsWith("sta ") && second.startsWith("lda ")) ||
|
||||
(first.startsWith("stx ") && second.startsWith("ldx ")) ||
|
||||
(first.startsWith("sty ") && second.startsWith("ldy ")) ||
|
||||
(first.startsWith("lda ") && second.startsWith("lda ")) ||
|
||||
(first.startsWith("ldy ") && second.startsWith("ldy ")) ||
|
||||
(first.startsWith("ldx ") && second.startsWith("ldx ")) ||
|
||||
(first.startsWith("sta ") && second.startsWith("lda ")) ||
|
||||
(first.startsWith("sty ") && second.startsWith("ldy ")) ||
|
||||
(first.startsWith("stx ") && second.startsWith("ldx "))
|
||||
(first.startsWith("ldx ") && second.startsWith("ldx "))
|
||||
) {
|
||||
val third = lines[3].value.trimStart()
|
||||
val attemptRemove =
|
||||
@ -439,6 +436,18 @@ private fun optimizeStoreLoadSame(
|
||||
mods.add(Modification(lines[1].index, true, null))
|
||||
mods.add(Modification(lines[2].index, false, " tya"))
|
||||
}
|
||||
|
||||
|
||||
// lda X + sta X, ldy X + sty X, ldx X + stx X -> the second instruction can be eliminated
|
||||
if ((first.startsWith("lda ") && second.startsWith("sta ")) ||
|
||||
(first.startsWith("ldx ") && second.startsWith("stx ")) ||
|
||||
(first.startsWith("ldy ") && second.startsWith("sty "))
|
||||
) {
|
||||
val firstLoc = first.substring(4).trimStart()
|
||||
val secondLoc = second.substring(4).trimStart()
|
||||
if (firstLoc == secondLoc)
|
||||
mods.add(Modification(lines[2].index, true, null))
|
||||
}
|
||||
}
|
||||
return mods
|
||||
}
|
||||
@ -485,6 +494,7 @@ private fun optimizeIncDec(linesByFour: Sequence<List<IndexedValue<String>>>): L
|
||||
mods.add(Modification(lines[0].index, true, null))
|
||||
mods.add(Modification(lines[1].index, true, null))
|
||||
}
|
||||
|
||||
}
|
||||
return mods
|
||||
}
|
||||
|
||||
@ -570,31 +570,68 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
|
||||
private fun tryOptimizedMemoryInplace(address: PtBinaryExpression, operator: String, value: AsmAssignSource): Boolean {
|
||||
if(value.datatype !in ByteDatatypes || operator !in "|&^+-")
|
||||
return false
|
||||
val rightTc = address.right as? PtTypeCast
|
||||
val constOffset = (address.right as? PtNumber)?.number?.toInt()
|
||||
if(address.operator=="+" && (address.right.type in ByteDatatypes || (rightTc!=null && rightTc.value.type in ByteDatatypes) || (constOffset!=null && constOffset<256)) ) {
|
||||
if(rightTc!=null)
|
||||
asmgen.assignExpressionToRegister(rightTc.value, RegisterOrPair.A, false)
|
||||
else if(constOffset!=null)
|
||||
asmgen.out(" lda #${constOffset}")
|
||||
else
|
||||
asmgen.assignExpressionToRegister(address.right, RegisterOrPair.A, false)
|
||||
asmgen.out(" pha") // offset on stack
|
||||
val zpPointerVarName: String
|
||||
|
||||
fun addrIntoZpPointer(): String {
|
||||
if(address.left is PtIdentifier && asmgen.isZpVar(address.left as PtIdentifier)) {
|
||||
zpPointerVarName = (address.left as PtIdentifier).name
|
||||
return (address.left as PtIdentifier).name
|
||||
} else {
|
||||
zpPointerVarName = "P8ZP_SCRATCH_W2"
|
||||
asmgen.assignExpressionToRegister(address.left, RegisterOrPair.AY, false)
|
||||
asmgen.out(" sta $zpPointerVarName | sty $zpPointerVarName+1")
|
||||
asmgen.out(" sta P8ZP_SCRATCH_W2 | sty P8ZP_SCRATCH_W2+1")
|
||||
return "P8ZP_SCRATCH_W2"
|
||||
}
|
||||
// calculate value into A
|
||||
}
|
||||
|
||||
fun assignValueToA() {
|
||||
val assignValue = AsmAssignment(value,
|
||||
AsmAssignTarget(TargetStorageKind.REGISTER, asmgen, DataType.UBYTE,
|
||||
address.definingISub(), Position.DUMMY, register = RegisterOrPair.A),
|
||||
program.memsizer, Position.DUMMY)
|
||||
assignmentAsmGen.translateNormalAssignment(assignValue, address.definingISub())
|
||||
asmgen.restoreRegisterStack(CpuRegister.Y, false) // offset into Y
|
||||
assignmentAsmGen.translateNormalAssignment(assignValue, address.definingISub()) // calculate value into A
|
||||
}
|
||||
|
||||
val rightTc = address.right as? PtTypeCast
|
||||
val constOffset = (address.right as? PtNumber)?.number?.toInt()
|
||||
if(address.operator=="+" && (address.right.type in ByteDatatypes || (rightTc!=null && rightTc.value.type in ByteDatatypes) || (constOffset!=null && constOffset<256)) ) {
|
||||
if(constOffset!=null) {
|
||||
val zpPointerVarName = addrIntoZpPointer()
|
||||
if(value.number==null) assignValueToA()
|
||||
asmgen.out(" ldy #$constOffset")
|
||||
when(operator) {
|
||||
"|" -> {
|
||||
if(value.number!=null) asmgen.out(" lda #${value.number.number.toInt()}")
|
||||
asmgen.out(" ora ($zpPointerVarName),y")
|
||||
}
|
||||
"&" -> {
|
||||
if(value.number!=null) asmgen.out(" lda #${value.number.number.toInt()}")
|
||||
asmgen.out(" and ($zpPointerVarName),y")
|
||||
}
|
||||
"^" -> {
|
||||
if(value.number!=null) asmgen.out(" lda #${value.number.number.toInt()}")
|
||||
asmgen.out(" eor ($zpPointerVarName),y")
|
||||
}
|
||||
"+" -> {
|
||||
// note: there is no inc (ZP),y instruction...
|
||||
if (value.number != null) asmgen.out(" lda #${value.number.number.toInt()}")
|
||||
asmgen.out(" clc | adc ($zpPointerVarName),y")
|
||||
}
|
||||
"-" -> {
|
||||
// note: there is no dec (ZP),y instruction...
|
||||
if (value.number != null) asmgen.out(" lda ($zpPointerVarName),y | sec | sbc #${value.number.number.toInt()}")
|
||||
else asmgen.out(" sta P8ZP_SCRATCH_REG | lda ($zpPointerVarName),y | sec | sbc P8ZP_SCRATCH_REG")
|
||||
}
|
||||
else -> throw AssemblyError("invalid op")
|
||||
}
|
||||
asmgen.out(" sta ($zpPointerVarName),y")
|
||||
return true
|
||||
}
|
||||
if(rightTc!=null)
|
||||
asmgen.assignExpressionToRegister(rightTc.value, RegisterOrPair.A, false)
|
||||
else
|
||||
asmgen.assignExpressionToRegister(address.right, RegisterOrPair.A, false)
|
||||
asmgen.out(" pha") // offset on stack
|
||||
val zpPointerVarName = addrIntoZpPointer()
|
||||
assignValueToA()
|
||||
asmgen.restoreRegisterStack(CpuRegister.Y, true) // offset from stack back into Y
|
||||
when(operator) {
|
||||
"|" -> asmgen.out(" ora ($zpPointerVarName),y")
|
||||
"&" -> asmgen.out(" and ($zpPointerVarName),y")
|
||||
|
||||
@ -1,11 +1,6 @@
|
||||
TODO
|
||||
====
|
||||
|
||||
Petaxian has gameplay problems on the C64 (with and without optimization) , cx16 target is fine.
|
||||
(seems unrelated to boolean type changes. 10.1 was still fine.)
|
||||
caused by 358215e4ddf408e568ded0d36afce9f0162e21d1 Removed PostIncrDecr
|
||||
|
||||
|
||||
...
|
||||
|
||||
|
||||
|
||||
131
examples/test.p8
131
examples/test.p8
@ -4,21 +4,124 @@
|
||||
|
||||
main {
|
||||
sub start() {
|
||||
derp("hello")
|
||||
mult3("hello")
|
||||
}
|
||||
uword @shared ref = $2000
|
||||
ref[5]=10
|
||||
txt.print_ub(ref[5])
|
||||
txt.spc()
|
||||
ref[5]--
|
||||
txt.print_ub(ref[5])
|
||||
txt.spc()
|
||||
ref[5]++
|
||||
txt.print_ub(ref[5])
|
||||
txt.nl()
|
||||
ref[5]-=2
|
||||
txt.print_ub(ref[5])
|
||||
txt.spc()
|
||||
ref[5]+=2
|
||||
txt.print_ub(ref[5])
|
||||
txt.nl()
|
||||
ref[5]-=3
|
||||
txt.print_ub(ref[5])
|
||||
txt.spc()
|
||||
ref[5]+=3
|
||||
txt.print_ub(ref[5])
|
||||
txt.nl()
|
||||
|
||||
sub derp(str arg) -> str {
|
||||
cx16.r0++
|
||||
return arg
|
||||
}
|
||||
|
||||
asmsub mult3(str input @XY) -> ubyte @A, str @XY {
|
||||
%asm {{
|
||||
lda #99
|
||||
ldx #100
|
||||
ldy #101
|
||||
rts
|
||||
}}
|
||||
ubyte[] array = [1,2,3,4,5,10]
|
||||
array[5]=10
|
||||
txt.print_ub(array[5])
|
||||
txt.spc()
|
||||
array[5]--
|
||||
txt.print_ub(array[5])
|
||||
txt.spc()
|
||||
array[5]++
|
||||
txt.print_ub(array[5])
|
||||
txt.nl()
|
||||
array[5]-=2
|
||||
txt.print_ub(array[5])
|
||||
txt.spc()
|
||||
array[5]+=2
|
||||
txt.print_ub(array[5])
|
||||
txt.nl()
|
||||
array[5]-=3
|
||||
txt.print_ub(array[5])
|
||||
txt.spc()
|
||||
array[5]+=3
|
||||
txt.print_ub(array[5])
|
||||
txt.nl()
|
||||
|
||||
|
||||
; cx16.r0L = 5
|
||||
; ref[cx16.r0L]=10
|
||||
; txt.print_ub(ref[cx16.r0L])
|
||||
; txt.spc()
|
||||
; ref[cx16.r0L]--
|
||||
; txt.print_ub(ref[cx16.r0L])
|
||||
; txt.spc()
|
||||
; ref[cx16.r0L]++
|
||||
; txt.print_ub(ref[cx16.r0L])
|
||||
; txt.nl()
|
||||
;
|
||||
; uword @shared uw = 1000
|
||||
; word @shared sw = -1000
|
||||
;
|
||||
; txt.print_uw(uw)
|
||||
; txt.spc()
|
||||
; uw++
|
||||
; txt.print_uw(uw)
|
||||
; txt.spc()
|
||||
; uw--
|
||||
; txt.print_uw(uw)
|
||||
; txt.nl()
|
||||
; uw = $00ff
|
||||
; txt.print_uw(uw)
|
||||
; txt.spc()
|
||||
; uw++
|
||||
; txt.print_uw(uw)
|
||||
; txt.spc()
|
||||
; uw--
|
||||
; txt.print_uw(uw)
|
||||
; txt.nl()
|
||||
;
|
||||
; txt.print_w(sw)
|
||||
; txt.spc()
|
||||
; sw++
|
||||
; txt.print_w(sw)
|
||||
; txt.spc()
|
||||
; sw--
|
||||
; txt.print_w(sw)
|
||||
; txt.nl()
|
||||
; sw = $00ff
|
||||
; txt.print_w(sw)
|
||||
; txt.spc()
|
||||
; sw++
|
||||
; txt.print_w(sw)
|
||||
; txt.spc()
|
||||
; sw--
|
||||
; txt.print_w(sw)
|
||||
; txt.nl()
|
||||
; sw = -257
|
||||
; txt.print_w(sw)
|
||||
; txt.spc()
|
||||
; sw++
|
||||
; txt.print_w(sw)
|
||||
; txt.spc()
|
||||
; sw--
|
||||
; txt.print_w(sw)
|
||||
; txt.nl()
|
||||
|
||||
/*
|
||||
seekerRef[SKR_X]-- this code looks very wrong with the pha/pla stuff
|
||||
bulletRef[BD_Y]--/++
|
||||
enemyRef[EN_MOVE_CNT]--/++
|
||||
|
||||
signed word--/++
|
||||
unsigned word--/++
|
||||
|
||||
attackRef+=FIELD_COUNT
|
||||
|
||||
*/
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user