Instruction pipeline sequencer in which state information of an

Details Instruction pipeline sequencer in which state information of an Instruction pipeline sequencer in which state information of an

1994-11-08

1995-10-17

Harrell, Robert B.

Boots, shoes, and leggings

364DIG1, 364DIG2, 3642318, G06F 922

Patent

active

054598451

ABSTRACT:
A microprocessor comprised of Instruction Fetch Unit (10), Instruction Decoder (12), Pipeline Sequencer (14), Register File (16), Multiply/Divider-Unit, Execution Unit, and REG coprocessors block (18) and instruction cache, Address Generation Unit, local register cache, and MEM coprocessors block (20). The Instruction Cache provides the Instruction fetch unit (10) with instructions every cycle. The instruction sequencer (IS) includes the Fetch Unit (IFU-10), the Instruction Decoder (ID-12) and the Pipeline Sequencer (PS-14). The instruction sequencer can decode and issue up to three instructions per clock. The pipe sequencer (14) employs a write back path to store snap shots of the state of the machine in pipe stages 1 and 2. This provides the way for branch guessing and the process switching to correct itself after issuing a wrong IP (in the case of the branch guessing), or a way to preserve the internal state of the machine at the time a context switching occurs in order to come back to the same condition it had left.

REFERENCES:
patent: 4161026 (1979-07-01), Wilhite
patent: 4399507 (1983-08-01), Cosgrove et al.
patent: 4407015 (1983-10-01), Ziobro
patent: 4430707 (1984-02-01), Kim
patent: 4498136 (1985-02-01), Sproul, III
patent: 4847755 (1989-07-01), Morrison et al.
patent: 4891753 (1990-01-01), Budde et al.
patent: 4903196 (1990-02-01), Pomerene et al.
patent: 5119483 (1992-06-01), Madden et al.
patent: 5150468 (1992-10-01), Staplin et al.
patent: 5193205 (1993-03-01), Matuo et al.

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