Central processing unit for a digital computer
US4893235A · kind A · utility
9Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1988 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | Jun 16, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A central processing unit for a digital computer. In one embodiment, the central processing unit comprises a plurality of pointer registers that may be used during instruction execution to directly address other registers. In a second embodiment, the central processing unit comprises a size register that is loaded during the decode of an operation code with a size code indicating the data path width for that operation code. During instruction execution, the size code may be used at various times to determine data path width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.