Computer providing flexible processor extension, flexible instruction set extension, and implicit emulation for upward software compatibility
US4763242A · kind A · utility
58Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1985 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Oct 23, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3897
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer and an instruction set are presented which allow for a number of assists to be easily incorporated into the computer, and which allow for an instruction set extension. The computer is designed to support instructions which move data between an assist and a location, although an assist's operation and design need not be defined at the computer's date of design. Instructions are mapped to a particular assist. Assist instructions can be either executed in hardware by an assist, or emulated in software via a trap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.