vga.h

来自「有助于了解操作系统如何启动之过程」· C头文件 代码 · 共 35 行

/*
 *  GRUB  --  GRand Unified Bootloader
 *  Copyright (C) 2003,2007,2008  Free Software Foundation, Inc.
 *
 *  GRUB is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  GRUB is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef GRUB_VGA_MACHINE_HEADER
#define GRUB_VGA_MACHINE_HEADER	1

#include <grub/symbol.h>
#include <grub/machine/memory.h>

/* The VGA (at the beginning of upper memory).  */
#define GRUB_MEMORY_MACHINE_VGA_ADDR		GRUB_MEMORY_MACHINE_UPPER

/* Set the video mode to MODE and return the previous mode.  */
unsigned char EXPORT_FUNC(grub_vga_set_mode) (unsigned char mode);

/* Return a pointer to the ROM font table.  */
unsigned char *EXPORT_FUNC(grub_vga_get_font) (void);

#endif /* ! GRUB_VGA_MACHINE_HEADER */