diff options
Diffstat (limited to 'sysdeps/i386/i686/strcmp.S')
| -rw-r--r-- | sysdeps/i386/i686/strcmp.S | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/sysdeps/i386/i686/strcmp.S b/sysdeps/i386/i686/strcmp.S index 8ffc5b0bb5..efda8515aa 100644 --- a/sysdeps/i386/i686/strcmp.S +++ b/sysdeps/i386/i686/strcmp.S @@ -1,5 +1,5 @@ /* Highly optimized version for ix86, x>=6. - Copyright (C) 1999 Free Software Foundation, Inc. + Copyright (C) 1999, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999. @@ -20,29 +20,34 @@ #include <sysdep.h> #include "asm-syntax.h" +#include "bp-asm.h" -/* - INPUT PARAMETERS: - s1 (sp + 4) - s2 (sp + 8) -*/ - +#define PARMS LINKAGE /* no space for saved regs */ +#define STR1 PARMS +#define STR2 STR1+PTR_SIZE .text ENTRY (strcmp) - movl 4(%esp), %ecx - movl 8(%esp), %edx -1: movb (%ecx), %al + ENTER + + movl STR1(%esp), %ecx + movl STR2(%esp), %edx + +L(oop): movb (%ecx), %al incl %ecx cmpb (%edx), %al - jne 2f + jne L(neq) incl %edx testb %al, %al - jnz 1b + jnz L(oop) + xorl %eax, %eax - jmp 3f -2: movl $1, %eax - ja 3f + jmp L(out) + +L(neq): movl $1, %eax + ja L(out) negl %eax -3: ret + +L(out): LEAVE + ret END (strcmp) |