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index.S revision 1.8 
      1  1.1      cgd /*
      2  1.7      jtc  * Written by J.T. Conklin <jtc (at) netbsd.org>.
      3  1.7      jtc  * Public domain.
      4  1.1      cgd  */
      5  1.1      cgd 
      6  1.6      jtc #include <machine/asm.h>
      7  1.6      jtc 
      8  1.2      jtc #if defined(LIBC_SCCS)
      9  1.8      jtc 	RCSID("$NetBSD: index.S,v 1.8 1995/04/28 22:58:01 jtc Exp $")
     10  1.2      jtc #endif
     11  1.1      cgd 
     12  1.3      jtc #ifdef STRCHR
     13  1.3      jtc ENTRY(strchr)
     14  1.3      jtc #else
     15  1.1      cgd ENTRY(index)
     16  1.3      jtc #endif
     17  1.1      cgd 	pushl	%ebx
     18  1.1      cgd 	movl	8(%esp),%eax
     19  1.1      cgd 	movb	12(%esp),%cl
     20  1.1      cgd 	.align 2,0x90
     21  1.1      cgd L1:
     22  1.1      cgd 	movb	(%eax),%bl
     23  1.1      cgd 	cmpb	%bl,%cl			/* found char??? */
     24  1.1      cgd 	je 	L2
     25  1.1      cgd 	incl	%eax
     26  1.1      cgd 	testb	%bl,%bl			/* null terminator??? */
     27  1.5  mycroft 	jnz	L1
     28  1.1      cgd 	xorl	%eax,%eax
     29  1.1      cgd L2:
     30  1.1      cgd 	popl	%ebx
     31  1.1      cgd 	ret
     32