Instruction length prediction using an instruction length patter

Details Instruction length prediction using an instruction length patter Instruction length prediction using an instruction length patter

1997-12-18

2000-03-21

Kim, Kenneth S.

Electrical computers and digital processing systems: processing

Instruction decoding

Predecoding of instruction component

712210, 712215, G06F 938

Patent

active

060414057

ABSTRACT:
A microprocessor configured to predict the length of variable length instructions for decoding purposes by detecting patterns of instruction lengths that have been previously decoded. The microprocessor has a cache, an instruction length calculation unit, and a pattern detector. The instruction length calculation unit receives instruction bytes from the cache and generates an instruction length corresponding thereto. The pattern detector stores a plurality of instruction length sequences, each comprising an initial sequence and a final sequence. The pattern detector is configured to receive instruction lengths from the length calculation unit and compare them with the stored initial sequences. If the pattern detector finds a match, it outputs the corresponding final sequence for use as predicted instruction lengths. A method for using instruction length pattern detection for decoding is also disclosed.

REFERENCES:
patent: 5450605 (1995-09-01), Grochowski et al.
patent: 5488710 (1996-01-01), Sato et al.
patent: 5513330 (1996-04-01), Stiles
patent: 5724422 (1998-03-01), Shang et al.
patent: 5748978 (1998-05-01), Narayan et al.
patent: 5751981 (1998-05-01), Witt et al.
patent: 5809272 (1998-09-01), Thusoo et al.
patent: 5852727 (1998-12-01), Narayan et al.
patent: 5881260 (1999-03-01), Raje et al.

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