Dynamically shared group completion table between multiple...

Details Dynamically shared group completion table between multiple... Dynamically shared group completion table between multiple...

2003-04-21

2008-12-30

Chan, Eddie P (Department: 2183)

Electrical computers and digital processing systems: processing

Dynamic instruction dependency checking, monitoring or...

Commitment control or register bypass

Reexamination Certificate

active

07472258

ABSTRACT:
An SMT system has a dynamically shared GCT. Performance for the SMT is improved by configuring the GCT to allow an instruction group from each thread to complete simultaneously. The GCT has a read port for each thread corresponding to the completion table instruction/address array for simultaneous updating on completion. The forward link array also has a read port for each thread to find the next instruction group for each thread upon completion. The backward link array has a backward link write port for each thread in order to update the backward links for each thread simultaneously. The GCT has independent pointer management for each thread. Each of the threads has simultaneous commit of their renamed result registers and simultaneous updating of outstanding load and store tag usage.

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