usr/src/cmd/vi/port/bcopy.c

   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 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 void
  33 bcopy(from, to, count)
  34 #ifdef vax
  35         unsigned char *from, *to;
  36         int count;
  37 {
  38
  39         asm("   movc3   12(ap),*4(ap),*8(ap)");
  40 }
  41 #else
  42 #ifdef u3b              /* movblkb only works with register args */
  43         unsigned char *from, *to;
  44         int count;
  45 {
  46         asm("   movblkb %r6, %r8, %r7");
  47 }
  48 #else
  49         unsigned char *from, *to;
  50         int count;
  51 {
  52         while ((count--) > 0)
  53                 *to++ = *from++;
  54 }
  55 #endif
  56 #endif