Microprocessor having barrel shifter and direct path for directly rewriting output data of barrel shifter to its input
US5295250A · kind A · utility
24Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1991 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Feb 21, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F5/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microprocessor includes a barrel shifter, a rewrite section, and a control section. The barrel shifter serves as a shift unit which is controlled by a microprogram and operated by microinstructions for performing extraction, insertion, and comparison of consecutive bit strings in word data. The rewrite section directly rewrites output data from the barrel shifter into its input. The control section controls the rewrite section by using the microprogram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.