6 #define SCREEN_WIDTH 320
7 #define SCREEN_HEIGHT 200
9 #define COLOR_MASK 0x3c6
10 #define COLOR_REGISTER_RD 0x3c7
11 #define COLOR_REGISTER_WR 0x3c8
12 #define COLOR_DATA 0x3c9
13 #define VGACARD 0xA0000000
14 #define ROMCHRS 0xF000FA6E
22 typedef struct rgbcolor_typ
27 }rgbcolor, *rgbcolor_ptr;
29 typedef struct rgb_palette_typ
31 int start_reg; //starting register to save
32 int end_reg; // last register to save
33 rgbcolor colors[256]; // palette storage
34 }rgb_palette, *rgb_palette_ptr;
36 void setvgamode(int mode);
37 void write_rgbcolor_reg(int index, rgbcolor_ptr color);
38 rgbcolor_ptr read_rgbcolor_reg(int index, rgbcolor_ptr color);
39 void read_palette(int start_reg,int end_reg,rgb_palette_ptr pal);
40 void write_palette(int start_reg,int end_reg, rgb_palette_ptr pal);
41 void putchr(char out, int color, unsigned char far* dest);
43 /***** syncvr() ***********************************
44 * inline funtction that waits for verticle retrace
45 ***************************************************/
46 #define syncvr() while(inp(0x3da) & 0x08);while(!(inp(0x3da) & 0x08));