Method and system to preprogram and predict a next microcode...

Details Method and system to preprogram and predict a next microcode... Method and system to preprogram and predict a next microcode...

2005-01-11

2005-01-11

Portka, Gary (Department: 2188)

Electrical computers and digital processing systems: memory

Address formation

Address mapping

C711S103000, C712S239000, C712S243000

Reexamination Certificate

active

06842842

ABSTRACT:
A microprocessor includes a first memory to store microcode and a second memory to store predicted micro-operation addresses. Micro-operation addresses are predicted, stored in memory, and retrieved to get the next micro-operations from the microcode memory. Misprediction recovery logic is used to determine if the next predicted address is correct and to determine a recovery address to correct the predicted address if the predicted address is incorrect.

REFERENCES:
patent: 4430706 (1984-02-01), Sand
patent: 6493821 (2002-12-01), D'Sa et al.

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