// Basic 640x480x32 output

#include <openxdk.h>

void XBoxStartup()

{

      //let's init the screen

      vga_init_mode(MODE_640x480x32);         // Some possible modes all defined in

                                              // xvga.h

                                              // MODE_320x240x32

                                              // MODE_640x240x32

                                              // MODE_640x480x32 etc...plus many more

      while(1)

      {

            // A list of all these functions can be found at the top of xvga.h

            vga_vsync();                                    // Wait for Vertical Blank

        vga_flip();                                         // Flip

            vga_clear();                                    // Clear screen

            ScreenInfo s = vga_get_screen_info();

            unsigned int* pix = (unsigned int*)s.ScreenAddress;

            // VGA Text Pattern

            for(uint32 y=0;y<480;y++)

                  for(uint32 x=0;x<640;x++)

                        pix[640*y+x] = x;

      }// End while loop

}//End