Patent ID: 6791564
Filing Date: 2004-09-14
Classification: G09G

Abstract:
A mechanism for clipping a red-green-blue (RGB) integer value stored within a floating point register to an 8-bit maximum value of 255, comprising:a multiplexer having a first input that accepts n. low-order bits of said RGB integer value from the floating point register, and a select input that accepts at least one high-order bit of said RGB integer value as a mux select; and an 8-bit maximum value generator, coupled to a second input of said multiplexer, that provides the maximum value of 255 to said second input, an output of said multiplexer providing said n low-order bits when said at least one high order bit has a zero value and providing said maximum value of 255 when said at least one high order bit hats a nonzero value.