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mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-01-15 19:09:58 +08:00
Jeff Johnston ef44da427f 2000-08-27 Werner Almesberger <Werner.Almesberger@epfl.ch>
* libc/machine/i386/i386mach.h: added SOTYPE_FUNCTION to set type
        of global entry points if _I386MACH_NEED_SOTYPE_FUNCTION is defined;
        Added __CLI and __STI macros (controlled via
        _I386MACH_ALLOW_HW_INTERRUPTS macro).
        * libc/machine/i386/f_atan2.S libc/machine/i386/f_atan2f.S
        libc/machine/i386/f_frexp.S libc/machine/i386/f_frexpf.S
        libc/machine/i386/f_ldexp.S libc/machine/i386/f_ldexpf.S
        libc/machine/i386/f_log.S libc/machine/i386/f_log10.S
        libc/machine/i386/f_log10f.S libc/machine/i386/f_logf.S
        libc/machine/i386/f_tan.S libc/machine/i386/f_tanf.S
        libc/machine/i386/memchr.S libc/machine/i386/memcmp.S
        libc/machine/i386/memcpy.S libc/machine/i386/memmove.S
        libc/machine/i386/memset.S libc/machine/i386/setjmp.S
        libc/machine/i386/strchr.S libc/machine/i386/strlen.S:
        (that's libc/machine/i386/*.S) added SOTYPE_FUNCTION(symbol)
        for all global entry points.
        * libc/machine/i386/setjmp.S: removed code replicated in
        libc/machine/i386/i386mach.h and included i386mach.h instead;
        Use __CLI and __STI instead of cli and sti.
2000-08-28 17:50:06 +00:00

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879 B
ArmAsm

/*
* ====================================================
* Copyright (C) 1998 by Cygnus Solutions. 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
pushl ebx
movl 8(ebp),edi
movl 12(ebp),eax
movl 16(ebp),ecx
cld
#ifndef __OPTIMIZE_SIZE__
andl $255,eax
movl ecx,ebx
testl $3,edi
jne .L19
cmpl $16,ecx
jbe .L19
movl eax,edx
sall $8,eax
orl edx,eax
movl eax,edx
sall $16,edx
orl edx,eax
shrl $2,ecx
andl $3,ebx
rep
stosl
movl ebx,ecx
#endif /* not __OPTIMIZE_SIZE__ */
.L19:
rep
stosb
movl 8(ebp),eax
leal -8(ebp),esp
popl ebx
popl edi
leave
ret