44 lines
577 B
ArmAsm
44 lines
577 B
ArmAsm
.sect .text; .sect .rom; .sect .data; .sect .bss
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.sect .text
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.define .set
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! #bytes in cx
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! bit # in ax
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.set:
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pop bx ! return address
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xor dx,dx
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!ifdef create set
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sub sp,cx
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push bx
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push di
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mov bx,sp
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xor di,di
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sar cx,1
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1:
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mov 4(bx)(di),dx
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add di,2
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loop 1b
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!endif
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mov bx,8
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div bx
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cmp ax,di
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jae 2f
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mov di,dx
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movb dl,bits(di)
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mov di,sp
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add di,ax
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orb 4(di),dl
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pop di
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ret
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2:
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.extern ESET
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.extern .trp
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pop di
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mov ax,ESET
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push ax
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jmp .trp
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.sect .data
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bits:
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.data1 1,2,4,8,16,32,64,128
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