20 lines
270 B
ArmAsm
20 lines
270 B
ArmAsm
.sect .text; .sect .rom; .sect .data; .sect .bss
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.define .and
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! #bytes in cx
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! save di; it might be a register variable
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.sect .text
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.and:
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pop bx ! return address
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mov dx,di
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mov di,sp
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add di,cx
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sar cx,1
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1:
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pop ax
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and ax,(di)
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stos
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loop 1b
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mov di,dx
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jmp bx
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