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

/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 * This code is derived from software contributed to Berkeley by
 * Computer Consoles Inc.
 */

#if defined(LIBC_SCCS) && !defined(lint)
        .asciz "@(#)bcmp.s      1.4 (Berkeley) %G%"
#endif /* LIBC_SCCS and not lint */

/* bcmp(s1, s2, n) */
/* compare exactly 'n' */
#include "DEFS.h"

ENTRY(bcmp, 0)
        movl    4(fp),r0
        movl    8(fp),r1
        mnegl   12(fp),r2
        jeql    3f
1:
        cmpb    (r0),(r1)
        jneq    2f
        incl    r0
        incl    r1
        aoblss  $0,r2,1b
3:
        clrl    r0
        ret
2:
        movl    $1,r0
        ret