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:
Dec. 01, 1998
Filed:
Jun. 13, 1997
Avinash Sodani, Madison, WI (US);
Gurindar S Sohi, Madison, WI (US);
Wisconsin Alumni Research Foundation, Madison, WI (US);
Abstract
A computer architecture allowing reuse of previously determined instruction results, indexes instruction results according to instruction addresses. The continued validity of operand values in registers or memory for the instructions is determined prior to the fetching of any given instruction by an invalidation system which detects an intervening register or memory write. Thus, the need to evaluate the operand values themselves which would delay execution is avoided. In one embodiment, dependencies for operands between instructions are recorded so as to avoid invalidating instructions having operand register or memory locations which are overwritten when the overwriting will be corrected by an intervening instruction immediately preceding the dependent instructions.