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. 31, 1998
Filed:
Oct. 24, 1994
Stuart R Patrick, Issaquah, WA (US);
Richard A Pletcher, Redmond, WA (US);
Michael S Gibson, Redmond, WA (US);
Amit Chatterjee, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A method and apparatus for providing access to a banked peripheral memory via a contiguous linear address space. The present invention provides a linear address space having a present region that is mapped to a host memory region of a computer system. The present invention further provides a relocatable selector that provides access to a portion of the linear address space. Accessing programs exchange data with the banked peripheral memory via the relocatable linear address space. When an accessing program references an address of the relocatable address base that is not mapped to the present region, the relocatable linear address space is positioned so that the referenced address maps to the present region. Additionally, a bank of the peripheral memory that corresponds to the referenced address is also mapped into the host memory region so as to enable the accessing program to exchange data with the banked peripheral memory via the relocatable linear address space.