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optimized float var comparison without translateExpression()

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This commit is contained in:
Irmen de Jong 2020-11-22 15:05:45 +01:00
parent 49db10539a
commit 38d06a7e94
2 changed files with 110 additions and 20 deletions
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34
compiler/res/prog8lib/c64/floats.asm
View File

@ -447,6 +447,40 @@ notequal_f .proc
rts
.pend
vars_less_f .proc
; -- is float in AY < float in P8ZP_SCRATCH_W2 ?
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
rts
+ lda #0
rts
.pend
vars_lesseq_f .proc
; -- is float in AY <= float in P8ZP_SCRATCH_W2 ?
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
rts
+ cmp #0
beq -
lda #0
rts
.pend
less_f .proc
; -- is f1 < f2?
jsr compare_floats

96
compiler/src/prog8/compiler/target/c64/codegen/ExpressionsAsmGen.kt
View File

@ -182,35 +182,91 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
}
private fun translateFloatLessJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(asmgen.options.slowCodegenWarnings)
println("warning: slow stack evaluation used (e1): '<' at ${left.position}") // TODO float via func args?
translateExpression(left)
translateExpression(right)
asmgen.out(" jsr floats.less_f | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
if(left is IdentifierReference && right is IdentifierReference) {
val leftName = asmgen.asmVariableName(left)
val rightName = asmgen.asmVariableName(right)
asmgen.out("""
lda #<$rightName
ldy #>$rightName
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
lda #<$leftName
ldy #>$leftName
jsr floats.vars_less_f
beq $jumpIfFalseLabel""")
} else {
if (asmgen.options.slowCodegenWarnings)
println("warning: slow stack evaluation used (e1): '<' at ${left.position}") // TODO float via func args?
translateExpression(left)
translateExpression(right)
asmgen.out(" jsr floats.less_f | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
}
private fun translateFloatLessOrEqualJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(asmgen.options.slowCodegenWarnings)
println("warning: slow stack evaluation used (e1): '<=' at ${left.position}") // TODO float via func args?
translateExpression(left)
translateExpression(right)
asmgen.out(" jsr floats.lesseq_f | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
if(left is IdentifierReference && right is IdentifierReference) {
val leftName = asmgen.asmVariableName(left)
val rightName = asmgen.asmVariableName(right)
asmgen.out("""
lda #<$rightName
ldy #>$rightName
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
lda #<$leftName
ldy #>$leftName
jsr floats.vars_lesseq_f
beq $jumpIfFalseLabel""")
} else {
if (asmgen.options.slowCodegenWarnings)
println("warning: slow stack evaluation used (e1): '<=' at ${left.position}") // TODO float via func args?
translateExpression(left)
translateExpression(right)
asmgen.out(" jsr floats.lesseq_f | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
}
private fun translateFloatGreaterJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(asmgen.options.slowCodegenWarnings)
println("warning: slow stack evaluation used (e1): '>' at ${left.position}") // TODO float via func args?
translateExpression(left)
translateExpression(right)
asmgen.out(" jsr floats.greater_f | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
if(left is IdentifierReference && right is IdentifierReference) {
val leftName = asmgen.asmVariableName(left)
val rightName = asmgen.asmVariableName(right)
asmgen.out("""
lda #<$leftName
ldy #>$leftName
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
lda #<$rightName
ldy #>$rightName
jsr floats.vars_less_f
beq $jumpIfFalseLabel""")
} else {
if (asmgen.options.slowCodegenWarnings)
println("warning: slow stack evaluation used (e1): '>' at ${left.position}") // TODO float via func args?
translateExpression(left)
translateExpression(right)
asmgen.out(" jsr floats.greater_f | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
}
private fun translateFloatGreaterOrEqualJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
if(asmgen.options.slowCodegenWarnings)
println("warning: slow stack evaluation used (e1): '>=' at ${left.position}") // TODO float via func args
translateExpression(left)
translateExpression(right)
asmgen.out(" jsr floats.greatereq_f | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
if(left is IdentifierReference && right is IdentifierReference) {
val leftName = asmgen.asmVariableName(left)
val rightName = asmgen.asmVariableName(right)
asmgen.out("""
lda #<$leftName
ldy #>$leftName
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
lda #<$rightName
ldy #>$rightName
jsr floats.vars_lesseq_f
beq $jumpIfFalseLabel""")
} else {
if (asmgen.options.slowCodegenWarnings)
println("warning: slow stack evaluation used (e1): '>=' at ${left.position}") // TODO float via func args
translateExpression(left)
translateExpression(right)
asmgen.out(" jsr floats.greatereq_f | inx | lda P8ESTACK_LO,x | beq $jumpIfFalseLabel")
}
}
private fun translateUbyteLessJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {