1/* 2 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * The contents of this file constitute Original Code as defined in and 7 * are subject to the Apple Public Source License Version 1.1 (the 8 * "License"). You may not use this file except in compliance with the 9 * License. Please obtain a copy of the License at 10 * http://www.apple.com/publicsource and read it before using this file. 11 * 12 * This Original Code and all software distributed under the License are 13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER 14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the 17 * License for the specific language governing rights and limitations 18 * under the License. 19 * 20 * @APPLE_LICENSE_HEADER_END@ 21 */ 22 23#include <types.h> 24#include <console/video_console.h> 25 26extern void bcopy(const void *, void *, size_t); 27 28void video_scroll_up(unsigned long start, 29 unsigned long end, 30 unsigned long dest) 31{ 32 bcopy((void *) start, (void *) dest, (end - start) << 2); 33} 34 35void video_scroll_down(unsigned long start, /* HIGH addr */ 36 unsigned long end, /* LOW addr */ 37 unsigned long dest) /* HIGH addr */ 38{ 39 bcopy((void *) end, (void *) dest, (start - end) << 2); 40} 41