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:
Oct. 31, 2006
Filed:
Jul. 11, 2001
Nigel Peter Topham, Wokingham, GB;
Nigel Peter Topham, Wokingham, GB;
PTS Corporation, San Jose, CA (US);
Abstract
A processor has respective first and second external instruction formats (F, F) in which instructions (add, load) are received by the processor. Each instruction has an opcode (e.g. 1011) which specifies an operation to be executed. Each external format has one or more preselected opcode bits (F: i+1˜i+4; F: i+1˜i+3) in which the opcode appears. The processor also has an internal instruction format (G) into which instructions in the external formats are translated prior to execution of the operation. A first operation (add) is specifiable in both the first and second external formats F, F), and a second operation (load) is specifiable in the second external format (F). The first and second operations have distinct opcodes (101, 011) in the second external format. In each of the preselected opcode bits which the first and second external formats have in common (i+1˜i+3), the opcodes of the first operation (101) in the two external formats are identical.