Software controlled CPU pipeline protection

Details Software controlled CPU pipeline protection Software controlled CPU pipeline protection

2011-08-09

2011-08-09

Lee, Chun-Kuan (Department: 2181)

Electrical computers and digital processing systems: processing

Processing control

Mode switch or change

C712S244000

Reexamination Certificate

active

07996660

ABSTRACT:
A processor in a digital system executes instructions in an instruction execution pipeline. The processor detects a pipeline protection directive while executing instructions and sets a pipeline protection mode in accordance with the directive. The processor then continues to fetch and execute instructions in an unprotected manner if the pipeline protection mode is off and continues to fetch and execute instruction in a protected manner if the pipeline protection mode is on.

REFERENCES:
patent: 6182203 (2001-01-01), Simar et al.
patent: 6360315 (2002-03-01), Potter
patent: 6810475 (2004-10-01), Tardieux
patent: 2007/0022277 (2007-01-01), Iwamura et al.
Qiao-yan et al.; “A Data Hazard Detection Method for DSP With Heavily Compressed Instruction Set”; 2004; IEEE.

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