The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 08, 2019

Filed:

Feb. 09, 2007
Applicant:

Andrew Webber, Hertfordshire, GB;

Inventor:

Andrew Webber, Hertfordshire, GB;

Assignee:

MIPS Tech, LLC, Campbell, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/38 (2018.01); G06F 9/30 (2018.01);
U.S. Cl.
CPC ...
G06F 9/3822 (2013.01); G06F 9/3017 (2013.01); G06F 9/30181 (2013.01); G06F 9/30196 (2013.01); G06F 9/3802 (2013.01);
Abstract

A method and an apparatus are provided for selecting between a plurality of instruction sets available to a microprocessor. An instruction fetch address is supplied. At least one predetermined bit of the instruction fetch address is used to select between the instruction sets. Once an instruction set has been selected, instructions may be fetched and decoded with a decoding scheme appropriate to the instruction set.


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