Computer graphics processing and selective visual display system – Computer graphic processing system – Graphic command processing
Patent
1995-12-19
1999-06-29
Chauhan, U.
Computer graphics processing and selective visual display system
Computer graphic processing system
Graphic command processing
345512, 345501, 395383, G06F 1500, G06T 100
Patent
active
059175052
ABSTRACT:
A graphics processor for rasterizing graphics data using display list programming to a host computer system memory. The processor dynamically rasterizes the display list generated by a host processor to either graphics memory local to the graphics processor or to the host system memory. The graphics processor of the present invention includes a prefetch unit having instruction prefetch logic for prefetching and decoding next opcode instructions in a display list of instructions from system memory. Prefetching a next instruction eliminates steup time necessary to fetch subsequent opcode instructions after a first opcode instruction has been fetched. The next opcode instruction in a sequential display list of instructions is prefetched with parameter data associated with the first fetched opcode instructions to save the graphics processor extra instruction fetch cycle time necessary to fetch subsequent opcode instructions. The graphics processor further includes a bus mastering unit which allows the graphics processor to master the host computer system bus during the transfer of display list instructions from host computer system memory and the subsequent processing of these instructions in an uninterrupted mode.
REFERENCES:
patent: 4967375 (1990-10-01), Pelham et al.
patent: 5010515 (1991-04-01), Torborg, Jr.
patent: 5046023 (1991-09-01), Katsura et al.
patent: 5299309 (1994-03-01), Kuo et al.
patent: 5321806 (1994-06-01), Meinerth et al.
patent: 5388207 (1995-02-01), Chia et al.
patent: 5528764 (1996-06-01), Heil
patent: 5655114 (1997-08-01), Taniai et al.
patent: 5664161 (1997-09-01), Fukushima
patent: 5664162 (1997-09-01), Dye
Chauhan U.
Cirrus Logic Inc.
Shaw Steven A.
LandOfFree
Method and apparatus for prefetching a next instruction using di does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for prefetching a next instruction using di, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for prefetching a next instruction using di will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1379689