usr/src/lib/libc/tahoe/string/strcmp.s

/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that: (1) source distributions retain this entire copyright
 * notice and comment, and (2) distributions including binaries display
 * the following acknowledgement:  ``This product includes software
 * developed by the University of California, Berkeley and its contributors''
 * in the documentation or other materials provided with the distribution
 * and in all advertising materials mentioning features or use of this
 * software. Neither the name of the University nor the names of its
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * This code is derived from software contributed to Berkeley by
 * Computer Consoles Inc.
 */

#if defined(LIBC_SCCS) && !defined(lint)
        .asciz "@(#)strcmp.s    1.4 (Berkeley) 6/1/90"
#endif /* LIBC_SCCS and not lint */

#include "DEFS.h"

/*
 * Compare strings:  s1>s2: >0  s1==s2: 0  s1<s2: <0
 *
 * strcmp(s1, s2)
 * register char *s1, *s2;
*/

ENTRY(strcmp, 0)
        movl    4(fp),r0
        movl    8(fp),r1
        cmps2
        jgtr    greater
        jlss    less
equal:  clrl    r0
        ret
less:   movl    $-1,r0
        ret
greater: movl   $1,r0
        ret