xref: /illumos-gate/usr/src/cmd/vi/port/bcopy.c (revision 9b9d39d2a32ff806d2431dbcc50968ef1e6d46b2)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 void
31 bcopy(from, to, count)
32 #ifdef vax
33 	unsigned char *from, *to;
34 	int count;
35 {
36 
37 	asm("	movc3	12(ap),*4(ap),*8(ap)");
38 }
39 #else
40 #ifdef u3b		/* movblkb only works with register args */
41 	unsigned char *from, *to;
42 	int count;
43 {
44 	asm("	movblkb	%r6, %r8, %r7");
45 }
46 #else
47 	unsigned char *from, *to;
48 	int count;
49 {
50 	while ((count--) > 0)
51 		*to++ = *from++;
52 }
53 #endif
54 #endif
55