nd exiting SVGA modes.</font>

<p><font face="Times">IOSVGADisplay supports 2-bit grayscale modes; it doesn't currently support 8-bit gray or color modes. To provide 2-bit grayscale support, IOSVGADisplay uses 2 of the 8 planes associated with screen pixels. The IOSVGADisplay subclass maps the values in the two planes into four entries in the hardware color palette, as described in <b>enterSVGAMode</b>.</font>

<p><font face="Times">Because the VGA specification allows only 64KB of screen memory to be mappe