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:
Sep. 21, 2004
Filed:
Oct. 09, 2001
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A system and method for managing stack utilization in a two-stack arrangement wherein the stacks are operable to grow towards each other. An application programming interface (API) is provided for facilitating user interaction with a stack management system associated with a computing environment such as an architectural simulator. Each of two stacks is initialized via the API with a stack base, a growth direction indicator and a stack pointer. High water marks are maintained for tracking each stack pointer's farthest location from the respective stack base during the execution of a program. When a program instruction is operable to access a location in either of the stacks, one or more validity rules are applied to determine if the access operation is permissible. Where the program instruction is operable to modify either of the stack pointers, another set of validity rules are applied to determine if the stack pointer operation is permissible. User warning and optional return of program control are available when an invalid access operation or stack pointer operation is attempted.