Patent · US Active

Determination of current stack pointer value using architectural and speculative stack pointer delta values

US7685406B2 · kind B2 · utility

2Cited by

3References

20Claims

0Family size

Assignee

Advanced Micro Devices, Inc. · US

Inventors

Christopher B. Svec · Austin, US
Faisal A. Syed · Austin, US
Michael E. Tuuk · Round Rock, US
Benjamin T. Sander · Austin, US
Gregory W. Smaus · Austin, US

Key dates

Filing date	Mar 22, 2007
Grant date	Mar 23, 2010
Priority date	—
Expiry date	Nov 20, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/3861
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A technique for reducing stack pointer adjustment operations when stack dependent operations, which correspond to stack dependent instructions, are encountered includes setting a stack pointer to an initial value for a stack. A number of bytes associated with the stack dependent operation is determined. A stack pointer delta is then modified based upon the number of bytes associated with the stack dependent operation. A current location in the stack is determined based on the stack pointer and the stack pointer delta.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.