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:
Jul. 10, 2007
Filed:
Feb. 21, 2002
Lars Winberg, Stockholm, SE;
Per Holmberg, Stockholm, SE;
Lars Winberg, Stockholm, SE;
Per Holmberg, Stockholm, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
The present invention relates to a processing unit for executing instructions in a computer system and to a method in such a processing unit. According to the present invention a decision is made whether or not to base execution on a value prediction (P), wherein the decision is based on information associated with the estimated time gain of execution based on a correct prediction. According to an embodiment of the present invention the decision regarding whether or not to execute speculatively is based on information regarding whether a cache hit or a cache miss is detected in connection with a load instruction. In an alternative embodiment of the present invention the decision is based on information regarding the dependency depth of the load instruction, i.e. the number of instructions that are dependent on the load.