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Annotation of 43BSDTahoe/lib/libc/gen/gen.vax/bzero.s, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  */
                     17: 
                     18: #if defined(LIBC_SCCS) && !defined(lint)
                     19:        .asciz "@(#)bzero.s     5.5 (Berkeley) 6/27/88"
                     20: #endif /* LIBC_SCCS and not lint */
                     21: 
                     22: /* bzero(base, length) */
                     23: 
                     24: #include "DEFS.h"
                     25: 
                     26: ENTRY(bzero, 0)
                     27:        movl    4(ap),r3
                     28:        jbr     2f
                     29: 1:
                     30:        subl2   r0,8(ap)
                     31:        movc5   $0,(r3),$0,r0,(r3)
                     32: 2:
                     33:        movzwl  $65535,r0
                     34:        cmpl    8(ap),r0
                     35:        jgtr    1b
                     36:        movc5   $0,(r3),$0,8(ap),(r3)
                     37:        ret

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