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:
Feb. 18, 1997
Filed:
Jun. 15, 1994
Daniel C Pickens, Dallas, TX (US);
Patrick W Bosshart, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A memory management system for use with a logic simulator 10 for storing data in each memory that is being simulated by the logic simulator 10. The system includes memory control logic 14 coupled to a physical memory 16 which is segmented into a permanent storage area P (26), a temporary storage area T1 (24) and a second temporary storage area T2 (22). Each write request from the simulator causes memory control logic 14 to store the latest request into the T2 area (22). Prior data stored in T2 (22) are first moved to the T1 (24) or P (26) storage area where other store requests for the same and other simulated locations were stored during the same simulator time interval. In this fashion, a history of simulator write activity is stored in physical memory 16 and available for rerunning or restarting the simulator 10 at or near a prior simulator cycle.