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40 lines
555 B
ArmAsm
40 lines
555 B
ArmAsm
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: lib/sdk/crt/mem/i386/memchr_asm.s
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*/
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#include <asm.inc>
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#include <ks386.inc>
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/*
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* void* memchr(const void* s, int c, size_t n)
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*/
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PUBLIC _memchr
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.code
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FUNC _memchr
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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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mov eax, [ebp + 12]
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mov ecx, [ebp + 16]
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cld
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jecxz .Lnotfound
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repne scasb
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je .Lfound
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.Lnotfound:
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mov edi, 1
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.Lfound:
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mov eax, edi
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dec eax
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pop edi
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leave
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ret
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ENDFUNC
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END
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