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:
Aug. 10, 2004
Filed:
Feb. 07, 2000
Lea Hwang Lee, Austin, TX (US);
William C. Moyer, Dripping Springs, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
Embodiments of the present invention relate generally to data processing systems having instruction folding and methods for controlling execution of a program loop. One embodiment includes detecting execution of a program loop and prefetching data in response to detecting execution of the program loop. Another embodiment includes detecting execution of a program loop and scanning the program loop for remote independent instructions or data dependencies during at least one iteration. Another embodiment includes detecting execution of a program loop and storing intra-loop data dependency information in a dependency bit vector, and using the dependency bit vector to select at least one local independent instruction available for folding. One embodiment includes an instruction folding unit comprising a first controller, a second controller, and a storage unit coupled to the second controller. Another embodiment includes a data processing system comprising a validation counter and a storage unit coupled to the validation counter where the storage unit includes a dependency bit vector corresponding to instructions of a program loop.