Static instruction decoder utilizing a circular queue to decode

Details Static instruction decoder utilizing a circular queue to decode Static instruction decoder utilizing a circular queue to decode

1997-12-19

2000-09-05

Ellis, Richard L.

Electrical computers and digital processing systems: processing

Instruction decoding

Decoding by plural parallel decoders

712215, 712204, G06F 930

Patent

active

061158070

ABSTRACT:
The invention, in one embodiment, is a static instruction decoder including a plurality of instruction inputs, a circular instruction queue, and an instruction rotator. The circular instruction queue is capable of receiving instructions from the instruction inputs, statically decoding the received instructions, indicating how many of the decoded instructions may issue in a next clock cycle, and outputting the decoded instructions in the next clock cycle, the number of instructions output being the number indicated. The instruction rotator is indexed by the indication of the circular instruction queue and points to the first instruction to issue in the next clock cycle.

REFERENCES:
patent: 4502111 (1985-02-01), Riffe et al.
patent: 4720779 (1988-01-01), Raynard et al.
patent: 5497496 (1996-03-01), Ando
patent: 5742783 (1998-04-01), Azmoodeh et al.
patent: 5758114 (1998-05-01), Johnson et al.
patent: 5941980 (1999-08-01), Shang et al.

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