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| 1 | .sect .text; .sect .rom; .sect .data; .sect .bss
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| 2 | .sect .text
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| 3 | .define .sar4
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| 4 |
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| 5 | .sar4:
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| 6 | ! ebx, descriptor address
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| 7 | ! eax, index
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| 8 | sub eax,(ebx)
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| 9 | mov ecx,8(ebx)
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| 10 | imul ecx
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| 11 | pop ebx
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| 12 | pop edx ! base address
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| 13 | add edx,eax
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| 14 | sar ecx,1
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| 15 | jnb 1f
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| 16 | pop eax
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| 17 | movb (edx),al
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| 18 | jmp ebx
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| 19 | 1:
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| 20 | sar ecx,1
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| 21 | jnb 1f
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| 22 | pop eax
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| 23 | o16 mov (edx),ax
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| 24 | jmp ebx
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| 25 | 1:
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| 26 | xchg edi,edx ! edi = base address, edx is saved edi
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| 27 | mov eax,esi
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| 28 | mov esi,esp
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| 29 | rep movs
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| 30 | mov esp,esi
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| 31 | mov esi,eax
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| 32 | mov edi,edx
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| 33 | jmp ebx
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