43 lines
597 B
ArmAsm
43 lines
597 B
ArmAsm
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.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 ecx
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! bit # in eax
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.set:
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pop ebx ! return address
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xor edx,edx
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!ifdef create set
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sub esp,ecx
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push ebx
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push edi
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mov ebx,esp
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xor edi,edi
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sar ecx,1
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1:
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mov 4(ebx)(edi),edx
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add edi,4
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loop 1b
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!endif
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mov ebx,8
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div ebx
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cmp eax,edi
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jae 2f
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mov edi,edx
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movb dl,bits(edi)
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mov edi,esp
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add edi,eax
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orb 8(edi),dl
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pop edi
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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 edi
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mov eax,ESET
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jmp .trp
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.sect .rom
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bits:
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.data1 1,2,4,8,16,32,64,128
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