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. 25, 2008
Filed:
Jan. 31, 2005
Stuart D. Biles, Cambridge, GB;
Krisztian Flautner, Cambridge, GB;
Scott Mahlke, Ann Arbor, MI (US);
Nathan Clark, Ann Arbor, MI (US);
Stuart D. Biles, Cambridge, GB;
Krisztian Flautner, Cambridge, GB;
Scott Mahlke, Ann Arbor, MI (US);
Nathan Clark, Ann Arbor, MI (US);
Arm Limited, Cambridge, GB;
Abstract
An acceleratoris tightly coupled to the normal execution unit. The operand store, which could be a register file, a stack based operand store or other operand store is shared by the execution unit and the accelerator unit. Operands may also be accessed as immediate values within the instructions themselves. The sequences of individual program instructions corresponding to computational subgraphs remain within a program but can be recognized by the accelerator as suitable for acceleration and when encountered are executed by the accelerator instead of by the normal execution unit. Within such tightly coupled arrangement problems can arise due to a lack of register resources within the system. The present technique provides that at least some intermediate operand values which are generated within the accelerator, but are determined not to be referenced outside of the computational subgraph concerned, are not written to the operand store.