quakeforge/nq/source/vregset.c

/*
	vregset.c

	@description@

	Copyright (C) 1996-1997  Id Software, Inc.

	This program 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 2
	of the License, or (at your option) any later version.

	This program 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 this program; if not, write to:

		Free Software Foundation, Inc.
		59 Temple Place - Suite 330
		Boston, MA  02111-1307, USA

	$Id$
*/

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <dos.h>
#include <conio.h>

#include "vregset.h"

//#define outportb  loutportb


void
loutportb (int port, int val)
{
	printf ("port, val: %x %x\n", port, val);
	getch ();
}


void
VideoRegisterSet (int *pregset)
{
	int         port, temp0, temp1, temp2;

	for (;;) {
		switch (*pregset++) {
			case VRS_END:
			return;

			case VRS_BYTE_OUT:
			port = *pregset++;
			outportb (port, *pregset++);
			break;

			case VRS_BYTE_RMW:
			port = *pregset++;
			temp0 = *pregset++;
			temp1 = *pregset++;
			temp2 = inportb (port);
			temp2 &= temp0;
			temp2 |= temp1;
			outportb (port, temp2);
			break;

			case VRS_WORD_OUT:
			port = *pregset++;
			outportb (port, *pregset & 0xFF);
			outportb (port + 1, *pregset >> 8);
			pregset++;
			break;

			default:
			Sys_Error ("VideoRegisterSet: Invalid command\n");
		}
	}
}