25 lines
302 B
ArmAsm
25 lines
302 B
ArmAsm
.define Zer
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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 puts n (n <=256) zero bytes on top of
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! the stack.
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! The number of bytes minus one is in Y.
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Zer:
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tya
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lsr a ! number of bytes div 2
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tay
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iny
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lda #0
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tax
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2: jsr Push ! push two bytes
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dey
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bne 2b
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rts
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