56 lines
794 B
NASM
56 lines
794 B
NASM
.code
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stack START 0
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LDA #9
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STA @stackptr
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JSUB stackpush
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JSUB stackpop
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LDA @stackptr
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halt J halt
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stackinit
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STA stacktmp
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LDA #STACK
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STA stackptr
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LDA stacktmp
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RSUB
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stackpush
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STA stacktmp
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LDA stackptr
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ADD #3
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STA stackptr
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LDA stacktmp
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RSUB
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stackpop
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STA stacktmp
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LDA stackptr
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SUB #3
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STA stackptr
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LDA stacktmp
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RSUB
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.data
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stackptr WORD 0
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stacktmp WORD 0
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STACKSIZE EQU 50
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STACK RESW STACKSIZE
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END stack
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