Listing 2. Initializing the VGA Mode
char *video_buff;
vga_init();
/*
* the above statement must be in the
* earliest possible position in your
* main() function. The * vga_init()
* function is not directly related to
* the VGA graphics mode, but is needed
* for any of the SVGALIB functions to
* work properly. It is important that this
* function is called as soon as possible
* after the program executes.
*/
vga_setmode(G320x200x256);
video_buff = vga_getgraphmem();
union REGS r, s;
r.w.ax = 0x13; /* 0x13==VGA, 0x03== ext */
int386 (0x10, &r, &s);
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