xref: /xnu-8792.41.9/osfmk/console/video_scroll.c (revision 5c2921b07a2480ab43ec66f5b9e41cb872bc554f)
1*5c2921b0SApple OSS Distributions /*
2*5c2921b0SApple OSS Distributions  * Copyright (c) 2007 Apple Inc. All rights reserved.
3*5c2921b0SApple OSS Distributions  *
4*5c2921b0SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*5c2921b0SApple OSS Distributions  *
6*5c2921b0SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*5c2921b0SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*5c2921b0SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*5c2921b0SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*5c2921b0SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*5c2921b0SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*5c2921b0SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*5c2921b0SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*5c2921b0SApple OSS Distributions  *
15*5c2921b0SApple OSS Distributions  * Please obtain a copy of the License at
16*5c2921b0SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*5c2921b0SApple OSS Distributions  *
18*5c2921b0SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*5c2921b0SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*5c2921b0SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*5c2921b0SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*5c2921b0SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*5c2921b0SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*5c2921b0SApple OSS Distributions  * limitations under the License.
25*5c2921b0SApple OSS Distributions  *
26*5c2921b0SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*5c2921b0SApple OSS Distributions  */
28*5c2921b0SApple OSS Distributions 
29*5c2921b0SApple OSS Distributions #include <types.h>
30*5c2921b0SApple OSS Distributions #include <console/video_console.h>
31*5c2921b0SApple OSS Distributions 
32*5c2921b0SApple OSS Distributions void
video_scroll_up(void * start,void * end,void * dest)33*5c2921b0SApple OSS Distributions video_scroll_up(void * start, void * end, void * dest)
34*5c2921b0SApple OSS Distributions {
35*5c2921b0SApple OSS Distributions 	bcopy(start, dest, ((char *)end - (char *)start) << 2);
36*5c2921b0SApple OSS Distributions }
37*5c2921b0SApple OSS Distributions 
38*5c2921b0SApple OSS Distributions void
video_scroll_down(void * start,void * end,void * dest)39*5c2921b0SApple OSS Distributions video_scroll_down(void * start,      /* HIGH addr */
40*5c2921b0SApple OSS Distributions     void * end,                      /* LOW addr */
41*5c2921b0SApple OSS Distributions     void * dest)                     /* HIGH addr */
42*5c2921b0SApple OSS Distributions {
43*5c2921b0SApple OSS Distributions 	bcopy(end, dest, ((char *)start - (char *)end) << 2);
44*5c2921b0SApple OSS Distributions }
45