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implemented missing memory postincrdecr codegen

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This commit is contained in:
Irmen de Jong 2020-08-20 21:48:15 +02:00
parent 513a68584c
commit 58f323c087
2 changed files with 24 additions and 12 deletions
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17
compiler/src/prog8/compiler/target/c64/codegen/PostIncrDecrAsmGen.kt
View File

@ -7,6 +7,8 @@ import prog8.ast.expressions.NumericLiteralValue
import prog8.ast.statements.PostIncrDecr
import prog8.compiler.AssemblyError
import prog8.compiler.target.c64.C64MachineDefinition.C64Zeropage
import prog8.compiler.target.c64.C64MachineDefinition.ESTACK_HI_HEX
import prog8.compiler.target.c64.C64MachineDefinition.ESTACK_LO_HEX
import prog8.compiler.toHex
@ -53,7 +55,20 @@ internal class PostIncrDecrAsmGen(private val program: Program, private val asmg
else
asmgen.out("+\tdec ${'$'}ffff\t; modified")
}
else -> TODO("asmgen postincrdecr on memory expression")
else -> {
asmgen.translateExpression(addressExpr)
asmgen.out("""
inx
lda $ESTACK_LO_HEX,x
sta (+) + 1
lda $ESTACK_HI_HEX,x
sta (+) + 2
""")
if(incr)
asmgen.out("+\tinc ${'$'}ffff\t; modified")
else
asmgen.out("+\tdec ${'$'}ffff\t; modified")
}
}
}
targetArrayIdx!=null -> {

19
examples/test.p8
View File

@ -8,20 +8,17 @@ main {
sub start() {
;@($d020) += @($d020) ; TODO fix compiler hang
;@($c000+A) ++ ; TODO implement this
uword addr = $c000
@(addr) = $f1
c64scr.print_ubhex(@(addr), true)
ubyte A = 10
@($c00a) = $4a
@($c000+A) ++ ; TODO implement this
c64scr.print_ubhex(@($c00a), true)
c64.CHROUT('\n')
@(addr) = - @(addr)
c64scr.print_ubhex(@(addr), true)
c64.CHROUT('\n')
@(addr) = - @(addr)
c64scr.print_ubhex(@(addr), true)
@($c000+A) -- ; TODO implement this
c64scr.print_ubhex(@($c00a), true)
c64.CHROUT('\n')
;@($c000) = ! @($c000)
;@($c000) = ~ @($c000)
}
}