Method and apparatus for flexible data types

Abstract

An instruction set architecture (ISA) for application specific signal processor (ASSP) is tailored to digital signal processing applications. The ISA implemented with the ASSP, is adapted to DSP algorithmic structures. The ISA of the present invention includes flexible data typing, permutation, and type matching operations (1101, 1102, 1104 and 1106). The flexible data typing, permutation and type matching of operands provides programming flexibility to support different filtering and DSP algorithms having different types of filter coefficients or data samples. A data typer and aligner within each signal processing unit within the ASSP supports flexible data typing, permutation, and type matching of operands of the instruction set architecture.

Description

[0001] This application is a divisional application of the application dated August 16, 2001, the application number 01817951.7, and the invention title "method and device for flexible data types". [0002] Related application reference [0003] This application is a continuation-in-part of U.S. Application No. 09 / 427,174, Attorney Docket No. 004419.P001, filed October 25, 1999 by inventor Ganapathy et al. and claims priority to U.S. Application No. 09 / 427,174, and The disclosure of which is incorporated herein by reference as if set forth herein in its entirety, both of which are assigned to Vxtel Corporation. [0004] This application is also a continuation-in-part of U.S. Application Serial No. 09 / 494,608, Attorney Docket No. 004419.P002, filed January 31, 2000 by inventor Ganapathy et al. and this application claims priority to U.S. Application Serial No. 09 / 494,608, and The disclosure of which is incorporated herein by reference as if set forth herein in its entirety, both...

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