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.
Patent No.:
Date of Patent:
Mar. 09, 1999
Filed:
Nov. 25, 1996
Applicant:
Inventors:
Derrick Chu Lin, Foster City, CA (US);
Champa R Yellamilli, Cupertino, CA (US);
Charkravaythy Kosaraju, Sunnyvale, CA (US);
Nimish Modi, Sunnyvale, CA (US);
Ed Grochowski, San Jose, CA (US);
Assignee:
Intel Corporation, Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395591 ; 395385 ; 395568 ;
Abstract
A microprocessor that handles invalid opcodes via an event-signaling micro-operation is disclosed. The microprocessor comprises a decoder that decodes macroinstructions, including an opcode, into a single microprocessor cycle micro-operation. The decoder detects invalid opcodes and replaces the invalid opcodes with an event-signaling micro-operation that triggers an invalid opcode assist. The invalid opcode assist triggers an invalid opcode exception handler that processes the invalid opcode.