Method and apparatus for varying instruction streams provided to a processing device using masks
US6820188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Jan 6, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/7867
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit is provided to provide instruction streams to a processing device: embodiments of the circuit are appropriate for use with RISC CPUs, whereas other embodiments are useable with other processing devices, such as small processing devices used in a field programmable array. The circuit receives an external instruction stream which provides a first set of instruction values, and has a memory which contains a second set of instruction values. Two or more outputs provide instruction streams to the processing device. The circuit has a control input in the form of a mask which causes a selection means to allocate bits from the first and second sets of instruction values to different instruction streams to the processing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.