25 lines
386 B
ArmAsm
25 lines
386 B
ArmAsm
.define Lcs
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.sect .text
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.sect .rom
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.sect .data
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.sect .bss
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.sect .text
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! This subroutine creates space for locals on procedure entry
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! by lowering the stackpointer.
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Lcs:
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sta ARTH ! number of locals (lowbyte)
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stx ARTH+1 ! number of locals (highbyte)
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sec
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lda SP+2
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sbc ARTH
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sta SP+2 ! new stackpointer (lowbyte)
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lda SP+1
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sbc ARTH+1
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sta SP+1 ! new stackpointer (highbyte)
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rts
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