diff options
Diffstat (limited to 'newlib/libc/machine/i386/memset.S')
| -rw-r--r-- | newlib/libc/machine/i386/memset.S | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/newlib/libc/machine/i386/memset.S b/newlib/libc/machine/i386/memset.S deleted file mode 100644 index 6eb2cd6da..000000000 --- a/newlib/libc/machine/i386/memset.S +++ /dev/null @@ -1,99 +0,0 @@ -/* - * ==================================================== - * Copyright (C) 1998, 2002, 2008 by Red Hat Inc. All rights reserved. - * - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - - #include "i386mach.h" - - .global SYM (memset) - SOTYPE_FUNCTION(memset) - -SYM (memset): - - pushl ebp - movl esp,ebp - pushl edi - movl 8(ebp),edi - movzbl 12(ebp),eax - movl 16(ebp),ecx - cld - -#ifndef __OPTIMIZE_SIZE__ -/* Less than 16 bytes won't benefit from the 'rep stosl' loop. */ - cmpl $16,ecx - jbe .L19 - testl $7,edi - je .L10 - -/* It turns out that 8-byte aligned 'rep stosl' outperforms - 4-byte aligned on some x86 platforms. */ - movb al,(edi) - incl edi - decl ecx - testl $7,edi - je .L10 - - movb al,(edi) - incl edi - decl ecx - testl $7,edi - je .L10 - - movb al,(edi) - incl edi - decl ecx - testl $7,edi - je .L10 - - movb al,(edi) - incl edi - decl ecx - testl $7,edi - je .L10 - - movb al,(edi) - incl edi - decl ecx - testl $7,edi - je .L10 - - movb al,(edi) - incl edi - decl ecx - testl $7,edi - je .L10 - - movb al,(edi) - incl edi - decl ecx - -/* At this point, ecx>8 and edi%8==0. */ -.L10: - movb al,ah - movl eax,edx - sall $16,edx - orl edx,eax - - movl ecx,edx - shrl $2,ecx - andl $3,edx - rep - stosl - movl edx,ecx -#endif /* not __OPTIMIZE_SIZE__ */ - -.L19: - rep - stosb - - movl 8(ebp),eax - - leal -4(ebp),esp - popl edi - leave - ret |