ref: 02611e064eceed8d8cda8cc4d6e60f8f1833ea72
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"); } } }