void draw_hex8_value (uint8_t value)
{
gdisp_put_char('0');
gdisp_put_char('x');
draw_nibble(value >> 4);
draw_nibble(value & 0x0F);
}
void draw_hex16_value (uint16_t value)
{
gdisp_put_char('0');
gdisp_put_char('x');
draw_nibble((value >> 12) & 0x000F);
draw_nibble((value >> 8) & 0x000F);
draw_nibble((value >> 4) & 0x000F);
draw_nibble(value & 0x000F);
}
void do_frame(int full)
{
/* Clear it out */
memset(playground, PLAYGROUND_EMPTY, XUNITS * YUNITS);
/* Fill the matrix */
draw_border();
draw_snake();
draw_nibble();
/* Only draw the score if we need to */
/* draw_score(); */
/* Draw it to the offscreen buffer */
draw_screen(full);
/* And finally, show it on the screen */
show_buffer();
}