Patent · US Expired

System having user programmable addressing modes and method therefor

US6766433B2 · kind B2 · utility

7Cited by

8References

19Claims

0Family size

Assignee

Freeescale Semiconductor, Inc. · US

Inventors

Joseph C. Circello · Phoenix, US
Daniel M. McCarthy · Phoenix, US
Henri Cloetens · Kapelle-op-den-Bos, BE
Nancy H. Woo · Austin, US
Bridget Catherine Hooser · Munich, DE

Key dates

Filing date	Sep 21, 2001
Grant date	Jul 20, 2004
Priority date	—
Expiry date	Jun 3, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/34
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A system (10) implements user programmable addressing modes in response to control information contained within an input address. Encoded control information stored in a plurality of user programmed address permutation control registers (70-72) is used to determine what bit values are used to replace predetermined bits of the input address to selectively create a corresponding permutated address. Since no modification to a processor's pipeline is required, various permutation addressing modes may be user-defined and implemented using either a general-purpose processor or a specialized processor.

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