Method and system configuration for simplifying the decoding system for access to an register file with overlapping windows
US5440714A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1992 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Dec 14, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30145
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention comprises a decoding system for decoding a data accessing instruction for accessing data stored in a plurality of registers wherein the registers are of different types including a global type, a local type, an input type and an output type, the registers being cataloged into a plurality of windows arranged in a predefined window sequence wherein each window including a plurality of registers of each of the types arranged in a predefined register sequence wherein the output registers of one of the windows being overlapping with the input registers of an adjacent window which being next in sequence of the window sequence. The decoding system comprises an instruction issuing means for issuing a data accessing instruction including a plurality of bits wherein the bits being encoded in an order corresponding to the window sequence and the register sequence and a set of bits of the instruction is used for defining a corresponding window and a corresponding type of the registers. The decoding system further comprises a decoding means for decoding each sets of bits of the instruction utilizing the overlapping of input registers with output registers between two adjac…
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