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. 17, 2000
Filed:
Apr. 20, 1998
G Glenn Henry, Austin, TX (US);
Albert J Loper, Jr, Cedar Park, TX (US);
Terry Parks, Austin, TX (US);
IP-First, L.L.C., Fremont, CA (US);
Abstract
An apparatus and method for improving the execution of floating point instructions in a microprocessor is provided. During decode of a floating point instruction, translation logic generates absolute addresses of specified registers in a floating point register file. These absolute references, as opposed to relative references to a top-of-stack, are inserted into associated micro instructions. In the event of an exception, synchronization logic provides an architected top-of-stack for the floating point instruction associated with the exception to the translation logic so that subsequent instructions will properly reference floating point registers.