Position conflict detection and avoidance in a programmable...

Details Position conflict detection and avoidance in a programmable... Position conflict detection and avoidance in a programmable...

2006-05-30

2006-05-30

Hjerpe, Richard (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S423000, C345S544000, C345S564000, C345S582000, C345S614000, C345S626000

Reexamination Certificate

active

07053893

ABSTRACT:
Prior to executing a program on a fragment, a conflict detection unit, within a fragment processor checks if there is a position conflict indicating a RAW (read after write) hazard may exist. A RAW hazard exists when there is a pending write to a destination location that source data will be read from during execution of the program. When the fragment enters a processing pipeline, each destination location that may be written during the processing of the fragment is entered in conflict detection unit. During processing, the conflict detection unit is updated when a pending write to a destination location is completed.

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Aila et al., “Delay Streams for Graphics Hardware,” ACM Transactions on Graphics (TOG), Proceedings from SIGGRAPH 2003, (Jul. 2003). vol. 22, Issue 3. pp. 792-800.

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