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Irmen de Jong 2020-09-26 18:04:43 +02:00
parent 4179b4e543
commit 7f69f9ce4f
2 changed files with 172 additions and 101 deletions
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253
compiler/src/prog8/compiler/target/c64/codegen/ExpressionsAsmGen.kt
View File

@ -274,97 +274,6 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
asmgen.out(" jsr prog8_lib.less_w | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateUbyteLessOrEqual(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(rightConstVal!=null) {
if(leftConstVal!=null) {
if(rightConstVal>leftConstVal)
asmgen.out(" jmp $jumpIfFalseLabel")
return
} else {
if (left is IdentifierReference) {
val name = asmgen.asmVariableName(left)
if(rightConstVal.number.toInt()!=0)
asmgen.out("""
lda $name
cmp #${rightConstVal.number}
beq +
bcs $jumpIfFalseLabel
+""")
else
asmgen.out("""
lda $name
bne $jumpIfFalseLabel""")
return
}
else if (left is DirectMemoryRead) {
translateDirectMemReadExpression(left, false)
if(rightConstVal.number.toInt()!=0) {
asmgen.out("""
cmp #${rightConstVal.number}
beq +
bcs $jumpIfFalseLabel
+""")
}
else
asmgen.out(" bne $jumpIfFalseLabel")
return
}
}
}
asmgen.translateExpression(left)
asmgen.translateExpression(right)
asmgen.out(" jsr prog8_lib.lesseq_ub | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateByteLessOrEqual(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
// TODO compare with optimized asm
asmgen.translateExpression(left)
asmgen.translateExpression(right)
asmgen.out(" jsr prog8_lib.lesseq_b | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateUwordLessOrEqual(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(rightConstVal!=null) {
if(leftConstVal!=null) {
if(rightConstVal>leftConstVal)
asmgen.out(" jmp $jumpIfFalseLabel")
return
} else {
if (left is IdentifierReference) {
val name = asmgen.asmVariableName(left)
if(rightConstVal.number.toInt()!=0)
asmgen.out("""
lda #>${rightConstVal.number}
cmp $name+1
bcc $jumpIfFalseLabel
bne +
lda #<${rightConstVal.number}
cmp $name
bcc $jumpIfFalseLabel
+""")
else
asmgen.out("""
lda $name
ora $name+1
bne $jumpIfFalseLabel""")
return
}
}
}
asmgen.translateExpression(left)
asmgen.translateExpression(right)
asmgen.out(" jsr prog8_lib.lesseq_uw | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateWordLessOrEqual(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
// TODO compare with optimized asm
asmgen.translateExpression(left)
asmgen.translateExpression(right)
asmgen.out(" jsr prog8_lib.lesseq_w | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateUbyteGreater(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(rightConstVal!=null) {
if(leftConstVal!=null) {
@ -449,6 +358,168 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
asmgen.out(" jsr prog8_lib.greater_w | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateUbyteLessOrEqual(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(rightConstVal!=null) {
if(leftConstVal!=null) {
if(rightConstVal>leftConstVal)
asmgen.out(" jmp $jumpIfFalseLabel")
return
} else {
if (left is IdentifierReference) {
val name = asmgen.asmVariableName(left)
if(rightConstVal.number.toInt()!=0)
asmgen.out("""
lda $name
cmp #${rightConstVal.number}
beq +
bcs $jumpIfFalseLabel
+""")
else
asmgen.out("""
lda $name
bne $jumpIfFalseLabel""")
return
}
else if (left is DirectMemoryRead) {
translateDirectMemReadExpression(left, false)
if(rightConstVal.number.toInt()!=0) {
asmgen.out("""
cmp #${rightConstVal.number}
beq +
bcs $jumpIfFalseLabel
+""")
}
else
asmgen.out(" bne $jumpIfFalseLabel")
return
}
}
}
asmgen.translateExpression(left)
asmgen.translateExpression(right)
asmgen.out(" jsr prog8_lib.lesseq_ub | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateByteLessOrEqual(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(rightConstVal!=null) {
if(leftConstVal!=null) {
if(rightConstVal>leftConstVal)
asmgen.out(" jmp $jumpIfFalseLabel")
return
} else {
if (left is IdentifierReference) {
val name = asmgen.asmVariableName(left)
if(rightConstVal.number.toInt()!=0)
asmgen.out("""
lda $name
clc
sbc #${rightConstVal.number}
bvc +
eor #$80
+ bpl $jumpIfFalseLabel""")
else
asmgen.out("""
lda $name
beq +
bpl $jumpIfFalseLabel
+""")
return
}
else if (left is DirectMemoryRead) {
translateDirectMemReadExpression(left, false)
if(rightConstVal.number.toInt()!=0) {
asmgen.out("""
clc
sbc #${rightConstVal.number}
bvc +
eor #$80
+ bpl $jumpIfFalseLabel""")
}
else
asmgen.out("""
beq +
bpl $jumpIfFalseLabel
+""")
return
}
}
}
asmgen.translateExpression(left)
asmgen.translateExpression(right)
asmgen.out(" jsr prog8_lib.lesseq_b | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateUwordLessOrEqual(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(rightConstVal!=null) {
if(leftConstVal!=null) {
if(rightConstVal>leftConstVal)
asmgen.out(" jmp $jumpIfFalseLabel")
return
} else {
if (left is IdentifierReference) {
val name = asmgen.asmVariableName(left)
if(rightConstVal.number.toInt()!=0)
asmgen.out("""
lda #>${rightConstVal.number}
cmp $name+1
bcc $jumpIfFalseLabel
bne +
lda #<${rightConstVal.number}
cmp $name
bcc $jumpIfFalseLabel
+""")
else
asmgen.out("""
lda $name
ora $name+1
bne $jumpIfFalseLabel""")
return
}
}
}
asmgen.translateExpression(left)
asmgen.translateExpression(right)
asmgen.out(" jsr prog8_lib.lesseq_uw | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateWordLessOrEqual(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(rightConstVal!=null) {
if(leftConstVal!=null) {
if(rightConstVal>leftConstVal)
asmgen.out(" jmp $jumpIfFalseLabel")
return
} else {
if (left is IdentifierReference) {
val name = asmgen.asmVariableName(left)
if(rightConstVal.number.toInt()!=0)
asmgen.out("""
lda #<${rightConstVal.number}
cmp $name
lda #>${rightConstVal.number}
sbc $name+1
bvc +
eor #$80
+ bmi $jumpIfFalseLabel""")
else
asmgen.out("""
lda #0
cmp $name
sbc $name+1
bvc +
eor #$80
+ bmi $jumpIfFalseLabel""")
}
}
}
asmgen.translateExpression(left)
asmgen.translateExpression(right)
asmgen.out(" jsr prog8_lib.lesseq_w | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
private fun translateUbyteGreaterOrEqual(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(rightConstVal!=null) {
if(leftConstVal!=null) {

20
examples/cmp/comparisons.p8
View File

@ -15,18 +15,18 @@ main {
repeat(25)
txt.chrout('\n')
equal()
txt.chrout('\n')
notequal()
txt.chrout('\n')
less()
txt.chrout('\n')
greater()
txt.chrout('\n')
; equal()
; txt.chrout('\n')
; notequal()
; txt.chrout('\n')
; less()
; txt.chrout('\n')
; greater()
; txt.chrout('\n')
lessequal()
txt.chrout('\n')
greaterequal()
txt.chrout('\n')
; greaterequal()
; txt.chrout('\n')
}
sub equal() {