Instruction set extension using prefixes
US6014735A · kind A · utility
104Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30149
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method and apparatus for encoding an instruction in an instruction set which uses a prefix code to qualify an existing opcode of an existing instruction. An opcode and an escape code are selected. The escape code is selected such that it is different from the prefix code and the existing opcode. The opcode, the escape code, and the prefix code are combined to generate an instruction code which uniquely represents the operation performed by the instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.