ref: a63d5778cb72c91bf1b14aaa4453a0239cc4a823
dir: /u/vregset.c/
/*
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 the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//
// vregset.c: video register-setting interpreter
//
#include <dos.h>
#include <conio.h>
#include "quakedef.h"
#include "vregset.h"
//#define outportb loutportb
void loutportb (int port, int val)
{
printf ("port, val: %x %x\n", port, val);
getch ();
}
/*
================
VideoRegisterSet
================
*/
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");
}
}
}