diff options
Diffstat (limited to 'sysdeps/i386/i586/strchr.S')
| -rw-r--r-- | sysdeps/i386/i586/strchr.S | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/sysdeps/i386/i586/strchr.S b/sysdeps/i386/i586/strchr.S index e351853231..bf351f605e 100644 --- a/sysdeps/i386/i586/strchr.S +++ b/sysdeps/i386/i586/strchr.S @@ -1,6 +1,6 @@ /* Find character CH in a NUL terminated string. Highly optimized version for ix85, x>=5. - Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>. @@ -21,6 +21,7 @@ #include <sysdep.h> #include "asm-syntax.h" +#include "bp-asm.h" /* This version is especially optimized for the i586 (and following?) processors. This is mainly done by using the two pipelines. The @@ -35,22 +36,23 @@ /* The magic value which is used throughout in the whole code. */ #define magic 0xfefefeff -/* - INPUT PARAMETERS: - str (sp + 4) - ch (sp + 8) -*/ +#define PARMS LINKAGE+16 /* space for 4 saved regs */ +#define RTN PARMS +#define STR RTN+RTN_SIZE +#define CHR STR+PTR_SIZE .text ENTRY (strchr) + ENTER + pushl %edi /* Save callee-safe registers. */ pushl %esi pushl %ebx pushl %ebp - movl 20(%esp), %eax /* get string pointer */ - movl 24(%esp), %edx /* get character we are looking for */ + movl STR(%esp), %eax + movl CHR(%esp), %edx movl %eax, %edi /* duplicate string pointer for later */ xorl %ecx, %ecx /* clear %ecx */ @@ -283,7 +285,8 @@ L(2): popl %ebp /* restore saved registers */ popl %esi popl %edi - ret + LEAVE + RET_PTR /* We know there is a NUL byte in the word. But we have to test whether there is an C byte before it in the word. */ @@ -326,7 +329,8 @@ L(3): xorl %eax, %eax /* set return value = NULL */ popl %esi popl %edi - ret + LEAVE + RET_PTR END (strchr) #undef index |