Data processing circuit with target instruction and prefix instruction
US6308258A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2000 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Nov 22, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30181
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A certain target instruction and a prefix instruction for expanding the function of that target instruction are input to the present data processing circuit. The data processing circuit analyses the thus-input instruction code and performs the processing necessary for the execution of that instruction. The data processing circuit comprises an instruction decoder section, a register file, and an instruction execution section that executes the instruction based on operational details of the instruction analyzed by the instruction decoder section. The instruction decoder section comprises an ext instruction processing section that processed the expansion of immediate data from the prefix instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.