/* * Copyright (C) 2002-2006 The DOSBox Team * * 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. */ #include #include "dosbox.h" #include "mem.h" #include "inout.h" #include "int10.h" #include "mouse.h" #include "vga.h" #define _EGA_HALF_CLOCK 0x0001 #define _EGA_LINE_DOUBLE 0x0002 #define _VGA_PIXEL_DOUBLE 0x0004 #define SEQ_REGS 0x05 #define GFX_REGS 0x09 #define ATT_REGS 0x15 VideoModeBlock ModeList_VGA[]={ /* mode ,type ,sw ,sh ,tw ,th ,cw,ch ,pt,pstart ,plength,htot,vtot,hde,vde special flags */ { 0x000 ,M_TEXT ,360 ,400 ,40 ,25 ,9 ,16 ,8 ,0xB8000 ,0x0800 ,50 ,449 ,40 ,400 ,_EGA_HALF_CLOCK }, { 0x001 ,M_TEXT ,360 ,400 ,40 ,25 ,9 ,16 ,8 ,0xB8000 ,0x0800 ,50 ,449 ,40 ,400 ,_EGA_HALF_CLOCK }, { 0x002 ,M_TEXT ,720 ,400 ,80 ,25 ,9 ,16 ,8 ,0xB8000 ,0x1000 ,100 ,449 ,80 ,400 ,0 }, { 0x003 ,M_TEXT ,720 ,400 ,80 ,25 ,9 ,16 ,8 ,0xB8000 ,0x1000 ,100 ,449 ,80 ,400 ,0 }, { 0x004 ,M_CGA4 ,320 ,200 ,40 ,25 ,8 ,8 ,1 ,0xB8000 ,0x4000 ,50 ,449 ,40 ,400 ,_EGA_HALF_CLOCK | _EGA_LINE_DOUBLE}, { 0x005 ,M_CGA4 ,320 ,200 ,40 ,25 ,8 ,8 ,1 ,0xB8000 ,0x4000 ,50 ,449 ,40 ,400 ,_EGA_HALF_CLOCK | _EGA_LINE_DOUBLE}, { 0x006 ,M_CGA2 ,640 ,200 ,80 ,25 ,8 ,8 ,1 ,0xB8000 ,0x4000 ,100 ,449 ,80 ,400 ,_EGA_HALF_CLOCK | _EGA_LINE_DOUBLE}, { 0x007 ,M_TEXT ,720 ,400 ,80 ,25 ,9 ,16 ,8 ,0xB0000 ,0x1000 ,100 ,449 ,80 ,400 ,0 }, { 0x00D ,M_EGA ,320 ,200 ,40 ,25 ,8 ,8 ,8 ,0xA0000 ,0x2000 ,50 ,449 ,40 ,400 ,_EGA_HALF_CLOCK | _EGA_LINE_DOUBLE }, { 0x00E ,M_EGA ,640 ,200 ,80 ,25 ,8 ,8 ,4 ,0xA0000 ,0x4000 ,100 ,449 ,80 ,400 ,_EGA_LINE_DOUBLE }, { 0x00F ,M_EGA ,640 ,350 ,80 ,25 ,8 ,14 ,2 ,0xA0000 ,0x8000 ,100 ,449 ,80 ,350 ,0 },/*was EGA_2*/ { 0x010 ,M_EGA ,640 ,350 ,80 ,25 ,8 ,14 ,2 ,0xA0000 ,0x8000 ,100 ,449 ,80 ,350 ,0 }, { 0x011 ,M_EGA ,640 ,480 ,80 ,30 ,8 ,16 ,1 ,0xA0000 ,0xA000 ,100 ,525 ,80 ,480 ,0 },/*was EGA_2 */ { 0x012 ,M_EGA ,640 ,480 ,80 ,30 ,8 ,16 ,1 ,0xA0000 ,0xA000 ,100 ,525 ,80 ,480 ,0 }, { 0x013 ,M_VGA ,320 ,200 ,40 ,25 ,8 ,8 ,1 ,0xA0000 ,0x2000 ,100 ,449 ,80 ,400 ,0 }, { 0x054 ,M_TEXT ,1056,688, 132,43, 8, 8, 1 ,0xB8000 ,0x4000, 192, 800, 132,688, 0 }, { 0x055 ,M_TEXT ,1056,400, 132,25, 8, 16, 1 ,0xB8000 ,0x2000, 192, 449, 132,400, 0 }, /* Follow vesa 1.2 for first 0x20 */ { 0x100 ,M_LIN8 ,640 ,400 ,80 ,25 ,8 ,16 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 ,0 }, { 0x101 ,M_LIN8 ,640 ,480 ,80 ,30 ,8 ,16 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 ,0 }, { 0x102 ,M_LIN4 ,800 ,600 ,100,37 ,8 ,16 ,1 ,0xA0000 ,0x10000,128 ,663 ,100,600 ,0 }, { 0x103 ,M_LIN8 ,800 ,600 ,100,37 ,8 ,16 ,1 ,0xA0000 ,0x10000,128 ,663 ,100,600 ,0 }, { 0x104 ,M_LIN4 ,1024,768 ,128,48 ,8 ,16 ,1 ,0xA0000 ,0x10000,150 ,800 ,128,768 ,0 }, { 0x105 ,M_LIN8 ,1024,768 ,128,48 ,8 ,16 ,1 ,0xA0000 ,0x10000,150 ,800 ,128,768 ,0 }, { 0x10D ,M_LIN15 ,320 ,200 ,40 ,25 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 , _VGA_PIXEL_DOUBLE | _EGA_LINE_DOUBLE }, { 0x10E ,M_LIN16 ,320 ,200 ,40 ,25 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 , _VGA_PIXEL_DOUBLE | _EGA_LINE_DOUBLE }, { 0x10F ,M_LIN32 ,320 ,200 ,40 ,25 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 , _VGA_PIXEL_DOUBLE | _EGA_LINE_DOUBLE }, { 0x110 ,M_LIN15 ,640 ,480 ,80 ,30 ,8 ,16 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 ,0 }, { 0x111 ,M_LIN16 ,640 ,480 ,80 ,30 ,8 ,16 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 ,0 }, { 0x112 ,M_LIN32 ,640 ,480 ,80 ,30 ,8 ,16 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 ,0 }, { 0x113 ,M_LIN15 ,800 ,600 ,100,37 ,8 ,16 ,1 ,0xA0000 ,0x10000,128 ,663 ,100,600 ,0 }, { 0x114 ,M_LIN16 ,800 ,600 ,100,37 ,8 ,16 ,1 ,0xA0000 ,0x10000,128 ,663 ,100,600 ,0 }, { 0x115 ,M_LIN32 ,800 ,600 ,100,37 ,8 ,16 ,1 ,0xA0000 ,0x10000,128 ,663 ,100,600 ,0 }, { 0x116 ,M_LIN15 ,1024,768 ,128,48 ,8 ,16 ,1 ,0xA0000 ,0x10000,150 ,800 ,128,768 ,0 }, { 0x117 ,M_LIN16 ,1024,768 ,128,48 ,8 ,16 ,1 ,0xA0000 ,0x10000,150 ,800 ,128,768 ,0 }, { 0x118 ,M_LIN32 ,1024,768 ,128,48 ,8 ,16 ,1 ,0xA0000 ,0x10000,150 ,800 ,128,768 ,0 }, { 0x150 ,M_LIN8 ,320 ,200 ,40 ,25 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 , _VGA_PIXEL_DOUBLE | _EGA_LINE_DOUBLE }, { 0x151 ,M_LIN8 ,320 ,240 ,40 ,30 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 , _VGA_PIXEL_DOUBLE | _EGA_LINE_DOUBLE }, { 0x152 ,M_LIN8 ,320 ,400 ,40 ,50 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 , _VGA_PIXEL_DOUBLE }, { 0x153 ,M_LIN8 ,320 ,480 ,40 ,60 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 , _VGA_PIXEL_DOUBLE }, { 0x160 ,M_LIN15 ,320 ,240 ,40 ,30 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 , _VGA_PIXEL_DOUBLE | _EGA_LINE_DOUBLE }, { 0x161 ,M_LIN15 ,320 ,400 ,40 ,50 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 , _VGA_PIXEL_DOUBLE }, { 0x162 ,M_LIN15 ,320 ,480 ,40 ,60 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 , _VGA_PIXEL_DOUBLE }, { 0x165 ,M_LIN15 ,640 ,400 ,80 ,25 ,8 ,16 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 ,0 }, { 0x170 ,M_LIN16 ,320 ,240 ,40 ,30 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 , _VGA_PIXEL_DOUBLE | _EGA_LINE_DOUBLE }, { 0x171 ,M_LIN16 ,320 ,400 ,40 ,50 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 , _VGA_PIXEL_DOUBLE }, { 0x172 ,M_LIN16 ,320 ,480 ,40 ,60 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 , _VGA_PIXEL_DOUBLE }, { 0x175 ,M_LIN16 ,640 ,400 ,80 ,25 ,8 ,16 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 ,0 }, { 0x190 ,M_LIN32 ,320 ,240 ,40 ,30 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 , _VGA_PIXEL_DOUBLE | _EGA_LINE_DOUBLE }, { 0x191 ,M_LIN32 ,320 ,400 ,40 ,50 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 , _VGA_PIXEL_DOUBLE }, { 0x192 ,M_LIN32 ,320 ,480 ,40 ,60 ,8 ,8 ,1 ,0xA0000 ,0x10000,100 ,525 ,80 ,480 , _VGA_PIXEL_DOUBLE }, { 0x195 ,M_LIN32 ,640 ,400 ,80 ,25 ,8 ,16 ,1 ,0xA0000 ,0x10000,100 ,449 ,80 ,400 ,0 }, {0xFFFF ,M_ERROR ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0x00000 ,0x0000 ,0 ,0 ,0 ,0 ,0 }, }; VideoModeBlock ModeList_OTHER[]={ /* mode ,type ,sw ,sh ,tw ,th ,cw,ch ,pt,pstart ,plength,htot,vtot,hde,vde ,special flags */ { 0x000 ,M_TEXT ,320 ,400 ,40 ,25 ,8 ,8 ,8 ,0xB8000 ,0x0800 ,56 ,31 ,40 ,25 ,0 }, { 0x001 ,M_TEXT ,320 ,400 ,40 ,25 ,8 ,8 ,8 ,0xB8000 ,0x0800 ,56 ,31 ,40 ,25 ,0 }, { 0x002 ,M_TEXT ,640 ,400 ,80 ,25 ,8 ,8 ,4 ,0xB8000 ,0x1000 ,113 ,31 ,80 ,25 ,0 }, { 0x003 ,M_TEXT ,640 ,400 ,80 ,25 ,8 ,8 ,4 ,0xB8000 ,0x1000 ,113 ,31 ,80 ,25 ,0 }, { 0x004 ,M_CGA4 ,320 ,200 ,40 ,25 ,8 ,8 ,4 ,0xB8000 ,0x0800 ,56 ,127 ,40 ,100 ,0 }, { 0x005 ,M_CGA4 ,320 ,200 ,40 ,25 ,8 ,8 ,4 ,0xB8000 ,0x0800 ,56 ,127 ,40 ,100 ,0 }, { 0x006 ,M_CGA2 ,640 ,200 ,80 ,25 ,8 ,8 ,4 ,0xB8000 ,0x0800 ,56 ,127 ,40 ,100 ,0 }, { 0x008 ,M_TANDY16,160 ,200 ,20 ,25 ,8 ,8 ,8 ,0xB8000 ,0x2000 ,56 ,127 ,40 ,100 ,0 }, { 0x009 ,M_TANDY16,320 ,200 ,40 ,25 ,8 ,8 ,8 ,0xB8000 ,0x2000 ,113 ,63 ,80 ,50 ,0 }, { 0x00A ,M_CGA4 ,640 ,200 ,40 ,25 ,8 ,8 ,8 ,0xB8000 ,0x2000 ,113 ,63 ,80 ,50 ,0 }, {0xFFFF ,M_ERROR ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0x00000 ,0x0000 ,0 ,0 ,0 ,0 ,0 }, }; VideoModeBlock Hercules_Mode= { 0x007 ,M_TEXT ,640 ,400 ,80 ,25 ,8 ,14 ,4 ,0xB0000 ,0x1000 ,97 ,25 ,80 ,25 ,0 }; static Bit8u text_palette[64][3]= { {0x00,0x00,0x00},{0x00,0x00,0x2a},{0x00,0x2a,0x00},{0x00,0x2a,0x2a},{0x2a,0x00,0x00},{0x2a,0x00,0x2a},{0x2a,0x2a,0x00},{0x2a,0x2a,0x2a}, {0x00,0x00,0x15},{0x00,0x00,0x3f},{0x00,0x2a,0x15},{0x00,0x2a,0x3f},{0x2a,0x00,0x15},{0x2a,0x00,0x3f},{0x2a,0x2a,0x15},{0x2a,0x2a,0x3f}, {0x00,0x15,0x00},{0x00,0x15,0x2a},{0x00,0x3f,0x00},{0x00,0x3f,0x2a},{0x2a,0x15,0x00},{0x2a,0x15,0x2a},{0x2a,0x3f,0x00},{0x2a,0x3f,0x2a}, {0x00,0x15,0x15},{0x00,0x15,0x3f},{0x00,0x3f,0x15},{0x00,0x3f,0x3f},{0x2a,0x15,0x15},{0x2a,0x15,0x3f},{0x2a,0x3f,0x15},{0x2a,0x3f,0x3f}, {0x15,0x00,0x00},{0x15,0x00,0x2a},{0x15,0x2a,0x00},{0x15,0x2a,0x2a},{0x3f,0x00,0x00},{0x3f,0x00,0x2a},{0x3f,0x2a,0x00},{0x3f,0x2a,0x2a}, {0x15,0x00,0x15},{0x15,0x00,0x3f},{0x15,0x2a,0x15},{0x15,0x2a,0x3f},{0x3f,0x00,0x15},{0x3f,0x00,0x3f},{0x3f,0x2a,0x15},{0x3f,0x2a,0x3f}, {0x15,0x15,0x00},{0x15,0x15,0x2a},{0x15,0x3f,0x00},{0x15,0x3f,0x2a},{0x3f,0x15,0x00},{0x3f,0x15,0x2a},{0x3f,0x3f,0x00},{0x3f,0x3f,0x2a}, {0x15,0x15,0x15},{0x15,0x15,0x3f},{0x15,0x3f,0x15},{0x15,0x3f,0x3f},{0x3f,0x15,0x15},{0x3f,0x15,0x3f},{0x3f,0x3f,0x15},{0x3f,0x3f,0x3f} }; static Bit8u mtext_palette[64][3]= { 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x00,0x00,0x00, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f, 0x3f,0x3f,0x3f }; static Bit8u ega_palette[64][3]= { {0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a}, {0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a}, {0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f}, {0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f}, {0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a}, {0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a}, {0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f}, {0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f} }; static Bit8u cga_palette[16][3]= { {0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a}, {0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f}, }; static Bit8u cga_palette_2[64][3]= { {0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a}, {0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a}, {0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f}, {0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f}, {0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a}, {0x00,0x00,0x00}, {0x00,0x00,0x2a}, {0x00,0x2a,0x00}, {0x00,0x2a,0x2a}, {0x2a,0x00,0x00}, {0x2a,0x00,0x2a}, {0x2a,0x15,0x00}, {0x2a,0x2a,0x2a}, {0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f}, {0x15,0x15,0x15}, {0x15,0x15,0x3f}, {0x15,0x3f,0x15}, {0x15,0x3f,0x3f}, {0x3f,0x15,0x15}, {0x3f,0x15,0x3f}, {0x3f,0x3f,0x15}, {0x3f,0x3f,0x3f}, }; static Bit8u vga_palette[256][3]= { {0x00,0x00,0x00},{0x00,0x00,0x2a},{0x00,0x2a,0x00},{0x00,0x2a,0x2a},{0x2a,0x00,0x00},{0x2a,0x00,0x2a},{0x2a,0x15,0x00},{0x2a,0x2a,0x2a}, {0x15,0x15,0x15},{0x15,0x15,0x3f},{0x15,0x3f,0x15},{0x15,0x3f,0x3f},{0x3f,0x15,0x15},{0x3f,0x15,0x3f},{0x3f,0x3f,0x15},{0x3f,0x3f,0x3f}, {0x00,0x00,0x00},{0x05,0x05,0x05},{0x08,0x08,0x08},{0x0b,0x0b,0x0b},{0x0e,0x0e,0x0e},{0x11,0x11,0x11},{0x14,0x14,0x14},{0x18,0x18,0x18}, {0x1c,0x1c,0x1c},{0x20,0x20,0x20},{0x24,0x24,0x24},{0x28,0x28,0x28},{0x2d,0x2d,0x2d},{0x32,0x32,0x32},{0x38,0x38,0x38},{0x3f,0x3f,0x3f}, {0x00,0x00,0x3f},{0x10,0x00,0x3f},{0x1f,0x00,0x3f},{0x2f,0x00,0x3f},{0x3f,0x00,0x3f},{0x3f,0x00,0x2f},{0x3f,0x00,0x1f},{0x3f,0x00,0x10}, {0x3f,0x00,0x00},{0x3f,0x10,0x00},{0x3f,0x1f,0x00},{0x3f,0x2f,0x00},{0x3f,0x3f,0x00},{0x2f,0x3f,0x00},{0x1f,0x3f,0x00},{0x10,0x3f,0x00}, {0x00,0x3f,0x00},{0x00,0x3f,0x10},{0x00,0x3f,0x1f},{0x00,0x3f,0x2f},{0x00,0x3f,0x3f},{0x00,0x2f,0x3f},{0x00,0x1f,0x3f},{0x00,0x10,0x3f}, {0x1f,0x1f,0x3f},{0x27,0x1f,0x3f},{0x2f,0x1f,0x3f},{0x37,0x1f,0x3f},{0x3f,0x1f,0x3f},{0x3f,0x1f,0x37},{0x3f,0x1f,0x2f},{0x3f,0x1f,0x27}, {0x3f,0x1f,0x1f},{0x3f,0x27,0x1f},{0x3f,0x2f,0x1f},{0x3f,0x37,0x1f},{0x3f,0x3f,0x1f},{0x37,0x3f,0x1f},{0x2f,0x3f,0x1f},{0x27,0x3f,0x1f}, {0x1f,0x3f,0x1f},{0x1f,0x3f,0x27},{0x1f,0x3f,0x2f},{0x1f,0x3f,0x37},{0x1f,0x3f,0x3f},{0x1f,0x37,0x3f},{0x1f,0x2f,0x3f},{0x1f,0x27,0x3f}, {0x2d,0x2d,0x3f},{0x31,0x2d,0x3f},{0x36,0x2d,0x3f},{0x3a,0x2d,0x3f},{0x3f,0x2d,0x3f},{0x3f,0x2d,0x3a},{0x3f,0x2d,0x36},{0x3f,0x2d,0x31}, {0x3f,0x2d,0x2d},{0x3f,0x31,0x2d},{0x3f,0x36,0x2d},{0x3f,0x3a,0x2d},{0x3f,0x3f,0x2d},{0x3a,0x3f,0x2d},{0x36,0x3f,0x2d},{0x31,0x3f,0x2d}, {0x2d,0x3f,0x2d},{0x2d,0x3f,0x31},{0x2d,0x3f,0x36},{0x2d,0x3f,0x3a},{0x2d,0x3f,0x3f},{0x2d,0x3a,0x3f},{0x2d,0x36,0x3f},{0x2d,0x31,0x3f}, {0x00,0x00,0x1c},{0x07,0x00,0x1c},{0x0e,0x00,0x1c},{0x15,0x00,0x1c},{0x1c,0x00,0x1c},{0x1c,0x00,0x15},{0x1c,0x00,0x0e},{0x1c,0x00,0x07}, {0x1c,0x00,0x00},{0x1c,0x07,0x00},{0x1c,0x0e,0x00},{0x1c,0x15,0x00},{0x1c,0x1c,0x00},{0x15,0x1c,0x00},{0x0e,0x1c,0x00},{0x07,0x1c,0x00}, {0x00,0x1c,0x00},{0x00,0x1c,0x07},{0x00,0x1c,0x0e},{0x00,0x1c,0x15},{0x00,0x1c,0x1c},{0x00,0x15,0x1c},{0x00,0x0e,0x1c},{0x00,0x07,0x1c}, {0x0e,0x0e,0x1c},{0x11,0x0e,0x1c},{0x15,0x0e,0x1c},{0x18,0x0e,0x1c},{0x1c,0x0e,0x1c},{0x1c,0x0e,0x18},{0x1c,0x0e,0x15},{0x1c,0x0e,0x11}, {0x1c,0x0e,0x0e},{0x1c,0x11,0x0e},{0x1c,0x15,0x0e},{0x1c,0x18,0x0e},{0x1c,0x1c,0x0e},{0x18,0x1c,0x0e},{0x15,0x1c,0x0e},{0x11,0x1c,0x0e}, {0x0e,0x1c,0x0e},{0x0e,0x1c,0x11},{0x0e,0x1c,0x15},{0x0e,0x1c,0x18},{0x0e,0x1c,0x1c},{0x0e,0x18,0x1c},{0x0e,0x15,0x1c},{0x0e,0x11,0x1c}, {0x14,0x14,0x1c},{0x16,0x14,0x1c},{0x18,0x14,0x1c},{0x1a,0x14,0x1c},{0x1c,0x14,0x1c},{0x1c,0x14,0x1a},{0x1c,0x14,0x18},{0x1c,0x14,0x16}, {0x1c,0x14,0x14},{0x1c,0x16,0x14},{0x1c,0x18,0x14},{0x1c,0x1a,0x14},{0x1c,0x1c,0x14},{0x1a,0x1c,0x14},{0x18,0x1c,0x14},{0x16,0x1c,0x14}, {0x14,0x1c,0x14},{0x14,0x1c,0x16},{0x14,0x1c,0x18},{0x14,0x1c,0x1a},{0x14,0x1c,0x1c},{0x14,0x1a,0x1c},{0x14,0x18,0x1c},{0x14,0x16,0x1c}, {0x00,0x00,0x10},{0x04,0x00,0x10},{0x08,0x00,0x10},{0x0c,0x00,0x10},{0x10,0x00,0x10},{0x10,0x00,0x0c},{0x10,0x00,0x08},{0x10,0x00,0x04}, {0x10,0x00,0x00},{0x10,0x04,0x00},{0x10,0x08,0x00},{0x10,0x0c,0x00},{0x10,0x10,0x00},{0x0c,0x10,0x00},{0x08,0x10,0x00},{0x04,0x10,0x00}, {0x00,0x10,0x00},{0x00,0x10,0x04},{0x00,0x10,0x08},{0x00,0x10,0x0c},{0x00,0x10,0x10},{0x00,0x0c,0x10},{0x00,0x08,0x10},{0x00,0x04,0x10}, {0x08,0x08,0x10},{0x0a,0x08,0x10},{0x0c,0x08,0x10},{0x0e,0x08,0x10},{0x10,0x08,0x10},{0x10,0x08,0x0e},{0x10,0x08,0x0c},{0x10,0x08,0x0a}, {0x10,0x08,0x08},{0x10,0x0a,0x08},{0x10,0x0c,0x08},{0x10,0x0e,0x08},{0x10,0x10,0x08},{0x0e,0x10,0x08},{0x0c,0x10,0x08},{0x0a,0x10,0x08}, {0x08,0x10,0x08},{0x08,0x10,0x0a},{0x08,0x10,0x0c},{0x08,0x10,0x0e},{0x08,0x10,0x10},{0x08,0x0e,0x10},{0x08,0x0c,0x10},{0x08,0x0a,0x10}, {0x0b,0x0b,0x10},{0x0c,0x0b,0x10},{0x0d,0x0b,0x10},{0x0f,0x0b,0x10},{0x10,0x0b,0x10},{0x10,0x0b,0x0f},{0x10,0x0b,0x0d},{0x10,0x0b,0x0c}, {0x10,0x0b,0x0b},{0x10,0x0c,0x0b},{0x10,0x0d,0x0b},{0x10,0x0f,0x0b},{0x10,0x10,0x0b},{0x0f,0x10,0x0b},{0x0d,0x10,0x0b},{0x0c,0x10,0x0b}, {0x0b,0x10,0x0b},{0x0b,0x10,0x0c},{0x0b,0x10,0x0d},{0x0b,0x10,0x0f},{0x0b,0x10,0x10},{0x0b,0x0f,0x10},{0x0b,0x0d,0x10},{0x0b,0x0c,0x10}, {0x00,0x00,0x00},{0x00,0x00,0x00},{0x00,0x00,0x00},{0x00,0x00,0x00},{0x00,0x00,0x00},{0x00,0x00,0x00},{0x00,0x00,0x00},{0x00,0x00,0x00} }; VideoModeBlock * CurMode; static bool SetCurMode(VideoModeBlock modeblock[],Bitu mode) { Bitu i=0; while ( modeblock[i].mode!=0xffff) { if ( modeblock[i].mode==mode) goto foundmode; i++; } return false; foundmode: CurMode=&modeblock[i]; return true; } static void FinishSetMode(bool clearmem) { Bitu i; /* Clear video memory if needs be */ if (clearmem) { switch (CurMode->type) { case M_CGA4: case M_CGA2: case M_TANDY16: for (i=0;i<16*1024;i++) { real_writew(0xb800,i*2,0x0000); } break; case M_TEXT: if (CurMode->mode==7) for (i=0;i<16*1024;i++) { real_writew(0xb000,i*2,0x0120); } else for (i=0;i<16*1024;i++) { real_writew(0xb800,i*2,0x0720); } break; case M_EGA: case M_VGA: case M_LIN8: case M_LIN4: case M_LIN15: case M_LIN16: case M_LIN32: /* Hack we just acess the memory directly */ memset(&vga.mem,0,sizeof(vga.mem)); } } /* Setup the BIOS */ if (CurMode->mode<128) real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MODE,CurMode->mode); else real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MODE,CurMode->mode-0x98); //Looks like the s3 bios real_writew(BIOSMEM_SEG,BIOSMEM_NB_COLS,CurMode->twidth); real_writew(BIOSMEM_SEG,BIOSMEM_PAGE_SIZE,CurMode->plength); real_writew(BIOSMEM_SEG,BIOSMEM_CRTC_ADDRESS,((CurMode->mode==7 )|| (CurMode->mode==0x0f)) ? 0x3b4 : 0x3d4); real_writeb(BIOSMEM_SEG,BIOSMEM_NB_ROWS,CurMode->theight-1); real_writew(BIOSMEM_SEG,BIOSMEM_CHAR_HEIGHT,CurMode->cheight); real_writeb(BIOSMEM_SEG,BIOSMEM_VIDEO_CTL,(0x60|(clearmem?0:0x80))); real_writeb(BIOSMEM_SEG,BIOSMEM_SWITCHES,0x09); real_writeb(BIOSMEM_SEG,BIOSMEM_MODESET_CTL,real_readb(BIOSMEM_SEG,BIOSMEM_MODESET_CTL)&0x7f); // FIXME We nearly have the good tables. to be reworked if (machine==MCH_VGA) real_writeb(BIOSMEM_SEG,BIOSMEM_DCC_INDEX,0x08); // 8 is VGA should be ok for now real_writew(BIOSMEM_SEG,BIOSMEM_VS_POINTER,0x00); real_writew(BIOSMEM_SEG,BIOSMEM_VS_POINTER+2,0x00); // Set cursor shape if(CurMode->type==M_TEXT) { INT10_SetCursorShape(0x06,07); } // Set cursor pos for page 0..7 for(i=0;i<8;i++) INT10_SetCursorPos(0,0,(Bit8u)i); // Set active page 0 INT10_SetActivePage(0); /* Set some interrupt vectors */ switch (CurMode->cheight) { case 8:RealSetVec(0x43,int10.rom.font_8_first);break; case 14:RealSetVec(0x43,int10.rom.font_14);break; case 16:RealSetVec(0x43,int10.rom.font_16);break; } /* Tell mouse resolution change */ Mouse_NewVideoMode(); } bool INT10_SetVideoMode_OTHER(Bitu mode,bool clearmem) { Bitu i; switch (machine) { case MCH_CGA: if (mode>6) return false; case TANDY_ARCH_CASE: if (mode>0xa) return false; if (!SetCurMode(ModeList_OTHER,mode)) { LOG(LOG_INT10,LOG_ERROR)("Trying to set illegal mode %X",mode); return false; } break; case MCH_HERC: if (mode!=7) return false; CurMode=&Hercules_Mode; break; } LOG(LOG_INT10,LOG_NORMAL)("Set Video Mode %X",mode); /* Setup the VGA to the correct mode */ // VGA_SetMode(CurMode->type); /* Setup the CRTC */ Bitu crtc_base=machine==MCH_HERC ? 0x3b4 : 0x3d4; //Horizontal total IO_WriteW(crtc_base,0x00 | (CurMode->htotal) << 8); //Horizontal displayed IO_WriteW(crtc_base,0x01 | (CurMode->hdispend) << 8); //Horizontal sync position IO_WriteW(crtc_base,0x02 | (CurMode->hdispend+1) << 8); //Horizontal sync width, seems to be fixed to 0xa, for cga at least, hercules has 0xf IO_WriteW(crtc_base,0x03 | (0xa) << 8); ////Vertical total IO_WriteW(crtc_base,0x04 | (CurMode->vtotal) << 8); //Vertical total adjust, 6 for cga,hercules,tandy IO_WriteW(crtc_base,0x05 | (6) << 8); //Vertical displayed IO_WriteW(crtc_base,0x06 | (CurMode->vdispend) << 8); //Vertical sync position IO_WriteW(crtc_base,0x07 | (CurMode->vdispend+1) << 8); //Maximum scanline Bit8u scanline,crtpage; switch(CurMode->type) { case M_TEXT: if (machine==MCH_HERC) scanline=14; else scanline=8; break; case M_CGA2: scanline=2; break; case M_CGA4: if (CurMode->mode!=0xa) scanline=2; else scanline=4; break; case M_TANDY16: if (CurMode->mode!=0x9) scanline=2; else scanline=4; break; } IO_WriteW(crtc_base,0x09 | (scanline-1) << 8); //Setup the CGA palette using VGA DAC palette for (i=0;i<16;i++) VGA_DAC_SetEntry(i,cga_palette[i][0],cga_palette[i][1],cga_palette[i][2]); //Setup the tandy palette for (i=0;i<16;i++) VGA_DAC_CombineColor(i,i); //Setup the special registers for each machine type Bit8u mode_control_list[0xa+1]={ 0x2c,0x28,0x2d,0x29, //0-3 0x2a,0x2e,0x16,0x29, //4-7 0x2a,0x2b,0x3b //8-a }; Bit8u mode_control_list_pcjr[0xa+1]={ 0x0c,0x08,0x0d,0x09, //0-3 0x0a,0x0e,0x0e,0x09, //4-7 0x1a,0x1b,0x0b //8-a }; Bit8u mode_control,color_select; switch (machine) { case MCH_HERC: IO_WriteB(0x3bf,0x3); //Enable changing all bits IO_WriteB(0x3b8,0x8); //TEXT mode and non-blinking characters IO_WriteB(0x3bf,0x0); //Disable changing all bits VGA_DAC_CombineColor(1,0xf); break; case MCH_CGA: mode_control=mode_control_list[CurMode->mode]; if (CurMode->mode == 0x6) color_select=0x3f; else color_select=0x30; IO_WriteB(0x3d8,mode_control); IO_WriteB(0x3d9,color_select); real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,mode_control); real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,color_select); break; case MCH_TANDY: /* Init some registers */ IO_WriteB(0x3da,0x1);IO_WriteB(0x3de,0xf); //Palette mask always 0xf IO_WriteB(0x3da,0x2);IO_WriteB(0x3de,0x0); //black border IO_WriteB(0x3da,0x3); //Tandy color overrides? switch (CurMode->mode) { case 0x8: IO_WriteB(0x3de,0x14);break; case 0x9: IO_WriteB(0x3de,0x14);break; case 0xa: IO_WriteB(0x3de,0x0c);break; default: IO_WriteB(0x3de,0x0);break; } crtpage=(CurMode->mode>=0x9) ? 0xf6 : 0x3f; IO_WriteB(0x3df,crtpage); real_writeb(BIOSMEM_SEG,BIOSMEM_CRTCPU_PAGE,crtpage); mode_control=mode_control_list[CurMode->mode]; if (CurMode->mode == 0x6 || CurMode->mode==0xa) color_select=0x3f; else color_select=0x30; IO_WriteB(0x3d8,mode_control); IO_WriteB(0x3d9,color_select); real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,mode_control); real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,color_select); break; case MCH_PCJR: /* Init some registers */ IO_ReadB(0x3da); IO_WriteB(0x3da,0x1);IO_WriteB(0x3da,0xf); //Palette mask always 0xf IO_WriteB(0x3da,0x2);IO_WriteB(0x3da,0x0); //black border IO_WriteB(0x3da,0x3); if (CurMode->mode<=0x04) IO_WriteB(0x3da,0x02); else if (CurMode->mode==0x06) IO_WriteB(0x3da,0x08); else IO_WriteB(0x3da,0x00); /* set CRT/Processor page register */ if (CurMode->mode<0x04) crtpage=0x3f; else if (CurMode->mode>=0x09) crtpage=0xf6; else crtpage=0x7f; IO_WriteB(0x3df,crtpage); real_writeb(BIOSMEM_SEG,BIOSMEM_CRTCPU_PAGE,crtpage); mode_control=mode_control_list_pcjr[CurMode->mode]; IO_WriteB(0x3da,0x0);IO_WriteB(0x3da,mode_control); real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,mode_control); if (CurMode->mode == 0x6 || CurMode->mode==0xa) color_select=0x3f; else color_select=0x30; IO_WriteB(0x3d9,color_select); real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,color_select); break; } FinishSetMode(clearmem); return true; } bool INT10_SetVideoMode(Bitu mode) { bool clearmem=true;Bitu i; if (mode>=0x100) { if (mode & 0x8000) clearmem=false; mode&=0xfff; } if ((mode<0x100) && (mode & 0x80)) { clearmem=false; mode-=0x80; } LOG(LOG_INT10,LOG_NORMAL)("Set Video Mode %X",mode); if (machine!=MCH_VGA) return INT10_SetVideoMode_OTHER(mode,clearmem); Bit8u modeset_ctl,video_ctl,vga_switches; if (!SetCurMode(ModeList_VGA,mode)){ LOG(LOG_INT10,LOG_ERROR)("Trying to set illegal mode %X",mode); return false; } /* First read mode setup settings from bios area */ video_ctl=real_readb(BIOSMEM_SEG,BIOSMEM_VIDEO_CTL); vga_switches=real_readb(BIOSMEM_SEG,BIOSMEM_SWITCHES); modeset_ctl=real_readb(BIOSMEM_SEG,BIOSMEM_MODESET_CTL); /* Setup the VGA to the correct mode */ Bit16u crtc_base; bool mono_mode=(mode == 7) || (mode==0xf); if (mono_mode) crtc_base=0x3b4; else crtc_base=0x3d4; /* Setup MISC Output Register */ Bit8u misc_output=0x2 | (mono_mode ? 0x0 : 0x1); switch (CurMode->vdispend) { case 400: misc_output|=0x60; if (CurMode->type==M_TEXT) // && (CurMode->pstart==0xB8000)) misc_output|=0x4; break; case 480: misc_output|=0xe0; break; case 350: misc_output|=0xa0; break; default: misc_output|=0x60; } IO_Write(0x3c2,misc_output); //Setup for 3b4 or 3d4 /* Program Sequencer */ Bit8u seq_data[SEQ_REGS]; memset(seq_data,0,SEQ_REGS); if (CurMode->cwidth==8) seq_data[1]|=1; //8 dot fonts by default if (CurMode->special & _EGA_HALF_CLOCK) seq_data[1]|=0x08; //Check for half clock seq_data[4]|=0x02; //More than 64kb switch (CurMode->type) { case M_TEXT: seq_data[2]|=0x3; //Enable plane 0 and 1 seq_data[4]|=0x05; //Alpanumeric and odd/even enabled break; case M_CGA2: seq_data[2]|=0xf; //Enable plane 0 break; case M_LIN4: case M_EGA: seq_data[2]|=0xf; //Enable all planes for writing break; case M_LIN8: //Seems to have the same reg layout from testing case M_LIN15: case M_LIN16: case M_LIN32: case M_VGA: seq_data[2]|=0xf; //Enable all planes for writing seq_data[4]|=0xc; //Graphics - odd/even - Chained break; } for (i=0;ihtotal-5); hor_overflow|=((CurMode->htotal-5) & 0x100) >> 8; /* Horizontal Display End */ IO_Write(crtc_base,0x01);IO_Write(crtc_base+1,CurMode->hdispend-1); hor_overflow|=((CurMode->hdispend-1) & 0x100) >> 7; /* Start horizontal Blanking */ IO_Write(crtc_base,0x02);IO_Write(crtc_base+1,CurMode->hdispend); hor_overflow|=((CurMode->hdispend) & 0x100) >> 6; /* End horizontal Blanking */ Bitu blank_end=(CurMode->htotal-2) & 0x7f; IO_Write(crtc_base,0x03);IO_Write(crtc_base+1,0x80|(blank_end & 0x1f)); /* Start Horizontal Retrace */ Bitu ret_start; if ((CurMode->special & _EGA_HALF_CLOCK) && (CurMode->type!=M_CGA2)) ret_start = (CurMode->hdispend+3); else if (CurMode->type==M_TEXT) ret_start = (CurMode->hdispend+5); else ret_start = (CurMode->hdispend+4); IO_Write(crtc_base,0x04);IO_Write(crtc_base+1,ret_start); hor_overflow|=(ret_start & 0x100) >> 4; /* End Horizontal Retrace */ Bitu ret_end; if (CurMode->special & _EGA_HALF_CLOCK) { if (CurMode->type==M_CGA2) ret_end=0; // mode 6 else if (CurMode->special & _EGA_LINE_DOUBLE) ret_end = (CurMode->htotal-18) & 0x1f; else ret_end = ((CurMode->htotal-18) & 0x1f) | 0x20; // mode 0&1 have 1 char sync delay } else if (CurMode->type==M_TEXT) ret_end = (CurMode->htotal-3) & 0x1f; else ret_end = (CurMode->htotal-4) & 0x1f; IO_Write(crtc_base,0x05);IO_Write(crtc_base+1,ret_end | (blank_end & 0x20) << 2); /* Vertical Total */ IO_Write(crtc_base,0x06);IO_Write(crtc_base+1,(CurMode->vtotal-2)); overflow|=((CurMode->vtotal-2) & 0x100) >> 8; overflow|=((CurMode->vtotal-2) & 0x200) >> 4; ver_overflow|=((CurMode->vtotal-2) & 0x400) >> 10; Bitu vretrace; switch (CurMode->vdispend) { case 400: vretrace=CurMode->vdispend+12; break; case 480: vretrace=CurMode->vdispend+10; break; case 350: vretrace=CurMode->vdispend+37; break; default: vretrace=CurMode->vdispend+12; } /* Vertical Retrace Start */ IO_Write(crtc_base,0x10);IO_Write(crtc_base+1,vretrace); overflow|=(vretrace & 0x100) >> 6; overflow|=(vretrace & 0x200) >> 2; ver_overflow|=(vretrace & 0x400) >> 6; /* Vertical Retrace End */ IO_Write(crtc_base,0x11);IO_Write(crtc_base+1,(vretrace+2) & 0xF); /* Vertical Display End */ IO_Write(crtc_base,0x12);IO_Write(crtc_base+1,(CurMode->vdispend-1)); overflow|=((CurMode->vdispend-1) & 0x100) >> 7; overflow|=((CurMode->vdispend-1) & 0x200) >> 3; ver_overflow|=((CurMode->vdispend-1) & 0x400) >> 9; Bitu vblank_trim; switch (CurMode->vdispend) { case 400: vblank_trim=6; break; case 480: vblank_trim=7; break; case 350: vblank_trim=5; break; default: vblank_trim=8; } /* Vertical Blank Start */ IO_Write(crtc_base,0x15);IO_Write(crtc_base+1,(CurMode->vdispend+vblank_trim)); overflow|=((CurMode->vdispend+vblank_trim) & 0x100) >> 5; max_scanline|=((CurMode->vdispend+vblank_trim) & 0x200) >> 4; ver_overflow|=((CurMode->vdispend+vblank_trim) & 0x400) >> 8; /* Vertical Blank End */ IO_Write(crtc_base,0x16);IO_Write(crtc_base+1,(CurMode->vtotal-vblank_trim-2)); /* Line Compare */ Bitu line_compare=(CurMode->vtotal < 1024) ? 1023 : 2047; IO_Write(crtc_base,0x18);IO_Write(crtc_base+1,line_compare&0xff); overflow|=(line_compare & 0x100) >> 4; max_scanline|=(line_compare & 0x200) >> 3; ver_overflow|=(line_compare & 0x400) >> 4; Bit8u underline=0; /* Maximum scanline / Underline Location */ if (CurMode->special & _EGA_LINE_DOUBLE) max_scanline|=0x80; switch (CurMode->type) { case M_TEXT: max_scanline|=CurMode->cheight-1; underline=mono_mode ? 0x0f : 0x1f; // mode 7 uses a diff underline position break; case M_VGA: underline=0x40; max_scanline|=1; //Vga doesn't use double line but this break; case M_LIN8: case M_LIN15: case M_LIN16: case M_LIN32: underline=0x60; //Seems to enable the every 4th clock on my s3 break; case M_CGA2: case M_CGA4: max_scanline|=1; break; } if (CurMode->vdispend==350) underline=0x0f; IO_Write(crtc_base,0x09);IO_Write(crtc_base+1,max_scanline); IO_Write(crtc_base,0x14);IO_Write(crtc_base+1,underline); /* OverFlow */ IO_Write(crtc_base,0x07);IO_Write(crtc_base+1,overflow); /* Extended Horizontal Overflow */ IO_Write(crtc_base,0x5d);IO_Write(crtc_base+1,hor_overflow); /* Extended Vertical Overflow */ IO_Write(crtc_base,0x5e);IO_Write(crtc_base+1,ver_overflow); /* Offset Register */ Bitu offset; switch (CurMode->type) { case M_LIN8: offset = CurMode->swidth/8; break; case M_LIN15: case M_LIN16: offset = 2 * CurMode->swidth/8; break; case M_LIN32: offset = 4 * CurMode->swidth/8; break; default: offset = CurMode->hdispend/2; } IO_Write(crtc_base,0x13); IO_Write(crtc_base + 1,offset & 0xff); /* Extended System Control 2 Register */ /* This register actually has more bits but only use the extended offset ones */ IO_Write(crtc_base,0x51); IO_Write(crtc_base + 1,(offset & 0x300) >> 4); /* Extended Vertical Overflow */ IO_Write(crtc_base,0x5e);IO_Write(crtc_base+1,ver_overflow); /* Mode Control */ Bit8u mode_control=0; switch (CurMode->type) { case M_CGA2: mode_control=0xc2; // 0x06 sets address wrap. break; case M_CGA4: mode_control=0xa2; break; case M_LIN4: case M_EGA: if (CurMode->mode==0x11) // 0x11 also sets address wrap. thought maybe all 2 color modes did but 0x0f doesn't. mode_control=0xc3; // so.. 0x11 or 0x0f a one off? else mode_control=0xe3; break; case M_TEXT: case M_VGA: case M_LIN8: case M_LIN15: case M_LIN16: case M_LIN32: mode_control=0xa3; if (CurMode->special & _VGA_PIXEL_DOUBLE) mode_control |= 0x08; break; } IO_Write(crtc_base,0x17);IO_Write(crtc_base+1,mode_control); /* Renable write protection */ IO_Write(crtc_base,0x11); IO_Write(crtc_base+1,IO_Read(crtc_base+1)|0x80); /* Setup the correct clock */ if (CurMode->mode>=0x100) { misc_output|=0xef; //Select clock 3 Bitu clock=CurMode->vtotal*8*CurMode->htotal*70; VGA_SetClock(3,clock/1000); } Bit8u misc_control_2; /* Setup Pixel format */ switch (CurMode->type) { case M_LIN8: /* This should be 0x0 according to the specs but makes it easier to detect compared to normal vga modes now */ misc_control_2=0x10; break; case M_LIN15: misc_control_2=0x30; break; case M_LIN16: misc_control_2=0x50; break; case M_LIN32: misc_control_2=0xd0; break; default: misc_control_2=0x0; break; } IO_WriteB(crtc_base,0x67);IO_WriteB(crtc_base+1,misc_control_2); /* Write Misc Output */ IO_Write(0x3c2,misc_output); /* Program Graphics controller */ Bit8u gfx_data[GFX_REGS]; memset(gfx_data,0,GFX_REGS); gfx_data[0x7]=0xf; /* Color don't care */ gfx_data[0x8]=0xff; /* BitMask */ switch (CurMode->type) { case M_TEXT: gfx_data[0x5]|=0x10; //Odd-Even Mode gfx_data[0x6]|=mono_mode ? 0x0a : 0x0e; //Either b800 or b000 break; case M_LIN8: case M_LIN15: case M_LIN16: case M_LIN32: case M_VGA: gfx_data[0x5]|=0x40; //256 color mode gfx_data[0x6]|=0x05; //graphics mode at 0xa000-affff break; case M_LIN4: case M_EGA: gfx_data[0x6]|=0x05; //graphics mode at 0xa000-affff break; case M_CGA4: gfx_data[0x5]|=0x20; //CGA mode case M_CGA2: gfx_data[0x6]|=0x0f; //graphics mode at at 0xb800=0xbfff break; } for (i=0;itype) { case M_LIN4: case M_EGA: att_data[0x10]=0x01; //Color Graphics switch (CurMode->mode) { case 0x0f: att_data[0x10]|=0x0a; //Monochrome att_data[0x01]=0x08; att_data[0x04]=0x18; att_data[0x05]=0x18; att_data[0x09]=0x08; att_data[0x0d]=0x18; break; case 0x11: for (i=1;i<16;i++) att_data[i]=0x3f; break; case 0x10: case 0x12: goto att_text16; default: for (i=0;i<8;i++) { att_data[i]=i; att_data[i+8]=i+0x10; } break; } break; case M_TANDY16: att_data[0x10]=0x01; //Color Graphics for (i=0;i<16;i++) att_data[i]=i; break; case M_TEXT: att_data[0x13]=0x08; //Pel panning on 8, although we don't have 9 dot text mode att_data[0x10]=0x0C; //Color Text with blinking real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,0x30); att_text16: for (i=0;i<8;i++) { att_data[i]=i; att_data[i+8]=i+0x38; } att_data[0x06]=0x14; //Odd Color 6 yellow/brown. break; case M_CGA2: att_data[0x10]=0x01; //Color Graphics att_data[0]=0x0; for (i=1;i<0x10;i++) att_data[i]=0x17; att_data[0x12]=0x1; //Only enable 1 plane real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,0x3f); break; case M_CGA4: att_data[0x10]=0x01; //Color Graphics att_data[0]=0x0; att_data[1]=0x13; att_data[2]=0x15; att_data[3]=0x17; att_data[4]=0x02; att_data[5]=0x04; att_data[6]=0x06; att_data[7]=0x07; for (i=0x8;i<0x10;i++) att_data[i] = i + 0x8; real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,0x30); break; case M_VGA: case M_LIN8: case M_LIN16: for (i=0;i<16;i++) att_data[i]=i; att_data[0x10]=0x41; //Color Graphics 8-bit break; } IO_Read(mono_mode ? 0x3ba : 0x3da); for (i=0;itype) { case M_EGA: if (CurMode->mode>0xf) goto dac_text16; else if (CurMode->mode==0xf) goto dac_mtext16; for (i=0;i<64;i++) { IO_Write(0x3c9,ega_palette[i][0]); IO_Write(0x3c9,ega_palette[i][1]); IO_Write(0x3c9,ega_palette[i][2]); } break; case M_CGA2: case M_CGA4: case M_TANDY16: for (i=0;i<64;i++) { IO_Write(0x3c9,cga_palette_2[i][0]); IO_Write(0x3c9,cga_palette_2[i][1]); IO_Write(0x3c9,cga_palette_2[i][2]); } break; case M_TEXT: if (CurMode->mode==7) { dac_mtext16: for (i=0;i<64;i++) { IO_Write(0x3c9,mtext_palette[i][0]); IO_Write(0x3c9,mtext_palette[i][1]); IO_Write(0x3c9,mtext_palette[i][2]); } break; } dac_text16: for (i=0;i<64;i++) { IO_Write(0x3c9,text_palette[i][0]); IO_Write(0x3c9,text_palette[i][1]); IO_Write(0x3c9,text_palette[i][2]); } break; case M_VGA: case M_LIN8: case M_LIN16: for (i=0;i<256;i++) { IO_Write(0x3c9,vga_palette[i][0]); IO_Write(0x3c9,vga_palette[i][1]); IO_Write(0x3c9,vga_palette[i][2]); } break; } if (machine==MCH_VGA) { /* check if gray scale summing is enabled */ if (real_readb(BIOSMEM_SEG,BIOSMEM_MODESET_CTL) & 2) { INT10_PerformGrayScaleSumming(0,256); } } /* Setup some special stuff for different modes */ Bit8u feature=real_readb(BIOSMEM_SEG,BIOSMEM_INITIAL_MODE); switch (CurMode->type) { case M_CGA2: feature=(feature&~0x30)|0x20; real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,0x1e); break; case M_CGA4: feature=(feature&~0x30)|0x20; if (CurMode->mode==4) real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,0x2a); else if (CurMode->mode==5) real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,0x2e); else real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,0x2); break; case M_TANDY16: feature=(feature&~0x30)|0x20; break; case M_TEXT: feature=(feature&~0x30)|0x20; switch (CurMode->mode) { case 0:real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,0x2c);break; case 1:real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,0x28);break; case 2:real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,0x2d);break; case 3:real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_MSR,0x29);break; } break; case M_LIN4: case M_EGA: case M_VGA: feature=(feature&~0x30); break; } // disabled, has to be set in bios.cpp exclusively // real_writeb(BIOSMEM_SEG,BIOSMEM_INITIAL_MODE,feature); /* Setup the CPU Window */ IO_Write(crtc_base,0x6a); IO_Write(crtc_base+1,0); /* Setup the linear frame buffer */ IO_Write(crtc_base,0x59); IO_Write(crtc_base+1,(Bit8u)(S3_LFB_BASE >> 24)); IO_Write(crtc_base,0x5a); IO_Write(crtc_base+1,(Bit8u)(S3_LFB_BASE >> 16)); /* Setup some remaining S3 registers */ Bitu reg_31; switch (CurMode->type) { case M_LIN4: case M_LIN8: case M_LIN15: case M_LIN16: case M_LIN32: reg_31 = 9; break; default: reg_31 = 0; break; } IO_Write(crtc_base,0x31);IO_Write(crtc_base+1,reg_31); //Enable banked memory and 256k+ access IO_Write(crtc_base,0x58);IO_Write(crtc_base+1,0x3); //Enable 8 mb of linear addressing IO_Write(crtc_base,0x58);IO_Write(crtc_base+1,0x3); //Enable 8 mb of linear addressing IO_Write(crtc_base,0x38);IO_Write(crtc_base+1,0x48); //Register lock 1 IO_Write(crtc_base,0x39);IO_Write(crtc_base+1,0xa5); //Register lock 2 FinishSetMode(clearmem); /* Load text mode font */ if (CurMode->type==M_TEXT) { INT10_LoadFont(Real2Phys(int10.rom.font_16),true,256,0,0,16); } return true; }