arch/arm26/lib/strchr.S

   1 /*
   2  *  linux/arch/arm26/lib/strchr.S
   3  *
   4  *  Copyright (C) 1995-2000 Russell King
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  *  ASM optimised string functions
  11  */
  12 #include <linux/linkage.h>
  13 #include <asm/assembler.h>
  14
  15                 .text
  16                 .align  5
  17 ENTRY(strchr)
  18 1:              ldrb    r2, [r0], #1
  19                 teq     r2, r1
  20                 teqne   r2, #0
  21                 bne     1b
  22                 teq     r2, #0
  23                 moveq   r0, #0
  24                 subne   r0, r0, #1
  25                 RETINSTR(mov,pc,lr)