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:
Jul. 15, 1997

Filed:

Jun. 07, 1995
Applicant:
Inventors:

Gene W Shen, Mountain View, CA (US);

John Szeto, Oakland, CA (US);

Niteen A Patkar, Sunnyvale, CA (US);

Michael C Shebanow, Plano, TX (US);

Assignee:

Hal Computer Systems, Inc., Campbell, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395591 ; 39518314 ;
Abstract

A high-performance processor is disclosed with structure and methods for: (1) aggressively scheduling long latency instructions including load/store instructions while maintaining precise state; (2) maintaining and restoring precise state at any instruction boundary; (3) tracking instruction status to maintain precise state; (4) checkpointing instructions to maintain precise state; (5) creating, maintaining, and using a time-out checkpoint; (6) tracking floating-point exceptions; (7) creating, maintaining, and using a watchpoint for plural, simultaneous, unresolved-branch evaluation; and (9) increasing processor throughput while maintaining precise state.


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