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rindex.S revision 1.10 
      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: rindex.S,v 1.10 1999/08/23 08:45:10 kleink Exp $")
     10 #endif
     11 
     12 #ifdef STRRCHR
     13 ENTRY(strrchr)
     14 #else
     15 ENTRY(rindex)
     16 #endif
     17 	pushl	%ebx
     18 	movl	8(%esp),%edx
     19 	movb	12(%esp),%cl
     20 	xorl	%eax,%eax		/* init pointer to null */
     21 	_ALIGN_TEXT,0x90
     22 L1:
     23 	movb	(%edx),%bl
     24 	cmpb	%bl,%cl
     25 	jne	L2
     26 	movl	%edx,%eax
     27 L2:
     28 	incl	%edx
     29 	testb	%bl,%bl			/* null terminator??? */
     30 	jnz	L1
     31 	popl	%ebx
     32 	ret
     33