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63 lines
1.1 KiB
Lua
63 lines
1.1 KiB
Lua
%import textio
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%import floats
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%zeropage basicsafe
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main {
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sub start() {
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ubyte ff = 10
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setflag(ff-10)
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setflag(ff-9)
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setflag(ff-10)
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setflag(ff-9)
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testX()
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}
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asmsub setflag(ubyte bitje @ Pc) {
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%asm {{
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bcs +
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lda #'0'
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jsr c64.CHROUT
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lda #13
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jmp c64.CHROUT
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+ lda #'1'
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jsr c64.CHROUT
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lda #13
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jmp c64.CHROUT
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}}
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}
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asmsub testX() {
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%asm {{
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stx _saveX
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lda #13
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jsr txt.chrout
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lda #'x'
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jsr txt.chrout
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lda #'='
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jsr txt.chrout
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lda _saveX
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jsr txt.print_ub
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lda #' '
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jsr txt.chrout
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lda #'s'
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jsr txt.chrout
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lda #'p'
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jsr txt.chrout
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lda #'='
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jsr txt.chrout
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tsx
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txa
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jsr txt.print_ub
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lda #13
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jsr txt.chrout
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ldx _saveX
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rts
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_saveX .byte 0
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}}
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}
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}
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