42 lines
568 B
ArmAsm
Executable file
42 lines
568 B
ArmAsm
Executable file
.sect .text; .sect .rom; .sect .data; .sect .bss
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.sect .text
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.define .sti
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.define .sts
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! #bytes in ecx
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! address in ebx
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! save edi/esi. they might be register variables
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.sts:
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pop edx
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sar ecx,1
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jnb 1f
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pop eax
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movb (ebx),al
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jmp edx
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1:
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sar ecx,1
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jnb 1f
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pop eax
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o16 mov (ebx),ax
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jmp edx
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1:
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push edx
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mov edx,edi
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mov edi,ebx
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pop ebx
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jmp 1f
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.sti:
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! only called with count >> 4
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mov edx,edi
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mov edi,ebx
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pop ebx
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sar ecx,2
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1:
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mov eax,esi
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mov esi,esp
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rep movs
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mov esp,esi
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mov edi,edx
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mov esi,eax
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jmp ebx
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