Home | History | Annotate | Line # | Download | only in string
index.S revision 1.8 
      1 /*
      2  * Written by J.T. Conklin <jtc (at) netbsd.org>.
      3  * Public domain.
      4  */
      5 
      6 #include <machine/asm.h>
      7 
      8 #if defined(LIBC_SCCS)
      9 	RCSID("$NetBSD: index.S,v 1.8 1995/04/28 22:58:01 jtc Exp $")
     10 #endif
     11 
     12 #ifdef STRCHR
     13 ENTRY(strchr)
     14 #else
     15 ENTRY(index)
     16 #endif
     17 	pushl	%ebx
     18 	movl	8(%esp),%eax
     19 	movb	12(%esp),%cl
     20 	.align 2,0x90
     21 L1:
     22 	movb	(%eax),%bl
     23 	cmpb	%bl,%cl			/* found char??? */
     24 	je 	L2
     25 	incl	%eax
     26 	testb	%bl,%bl			/* null terminator??? */
     27 	jnz	L1
     28 	xorl	%eax,%eax
     29 L2:
     30 	popl	%ebx
     31 	ret
     32