Patent ID: 7522170

Claim:
A graphics system comprising a transform unit, a main processor, a main memory, and a graphics and audio processor, wherein the graphics and audio processor is an application specific integrated circuit, wherein the application specific integrated circuit comprises: a processor interface which provides a data control between the main processor and the graphics and audio processor; a memory interface which provides a data control and interface between the graphics and audio processor and the main memory; a 3D graphics processor which performs graphics processing tasks; and a display controller which accesses information from the main memory and provides it to a video encoder; and further comprising a graphics system command stream is operable upon execution to load a projection matrix into the transform unit, the command stream comprising: a bit pattern “00010000”, followed by a pad, followed by a 21-bit value including sixteen bits of address indicating a transform unit register location and an additional five bits indicating how many words will follow, followed by at least one additional 32-bit word providing a projection matrix element value, wherein upon execution of the command stream by said graphics and audio processor the projection matrix is loaded into the transform unit.