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:
Jun. 18, 2002
Filed:
May. 06, 1998
Nik Shaylor, Newark, CA (US);
Sun Microsystems, Inc., Palo Alto, CA (US);
Abstract
A computer system and a method for operating a processor including the steps of establishing a first register save area and a second register save area in a memory, where each register save area holds data values that define a context. The first context is loaded in the processor by loading at least some of the data values from the first register save area into the plurality of registers. A first pointer value to the first register save area is stored in a current RFSA register. A context switch is indicated by storing a second pointer to the second register save area in the current RFSA register. The first pointer is transferred from the current RFSA register to a previous RFSA register. All of the data values that define the first context are transferred from the registers to a shadow register file. The second context is established in the processor by loading selected data values from the second register file save area into the plurality of registers.