60 lines
848 B
ArmAsm
60 lines
848 B
ArmAsm
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/*
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* ====================================================
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* Copyright (C) 1998 by Cygnus Solutions. All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#include "i386mach.h"
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.global SYM (memset)
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SYM (memset):
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pushl ebp
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movl esp,ebp
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pushl edi
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pushl ebx
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movl 8(ebp),edi
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movl 12(ebp),eax
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movl 16(ebp),ecx
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cld
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#ifndef __OPTIMIZE_SIZE__
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andl $255,eax
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movl ecx,ebx
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testl $3,edi
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jne .L19
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cmpl $16,ecx
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jbe .L19
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movl eax,edx
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sall $8,eax
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orl edx,eax
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movl eax,edx
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sall $16,edx
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orl edx,eax
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shrl $2,ecx
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andl $3,ebx
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rep
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stosl
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movl ebx,ecx
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#endif /* not __OPTIMIZE_SIZE__ */
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.L19:
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rep
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stosb
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movl 8(ebp),eax
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leal -8(ebp),esp
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popl ebx
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popl edi
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leave
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ret
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