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52 lines
609 B
ArmAsm
52 lines
609 B
ArmAsm
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#include <asm.inc>
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#include <ks386.inc>
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/*
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* void *memset (void *src, int val, size_t count)
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*/
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PUBLIC _memset
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.code
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FUNC _memset
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FPO 0, 3, 4, 1, 1, FRAME_NONFPO
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push ebp
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mov ebp, esp
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push edi
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mov edi, [ebp + 8]
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movzx eax, byte ptr [ebp + 12]
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mov ecx, [ebp + 16]
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cld
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cmp ecx, 16
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jb .L1
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mov edx, HEX(01010101)
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mul edx
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mov edx, ecx
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test edi, 3
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je .L2
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mov ecx, edi
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and ecx, 3
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sub ecx, 5
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not ecx
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sub edx, ecx
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rep stosb
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mov ecx, edx
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.L2:
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shr ecx, 2
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rep stosd
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mov ecx, edx
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and ecx, 3
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.L1:
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test ecx, ecx
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je .L3
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rep stosb
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.L3:
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pop edi
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mov eax, [ebp + 8]
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leave
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ret
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ENDFUNC
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END
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