Method and system for addressing registers in a data processing unit in an indirect addressing mode
US5890222A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1995 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Jan 4, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/35
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a data processing unit, an instruction is loaded. Such an instruction includes an operation code field for storing an operation code and at least one operand field, where the operand field includes an indirect addressing mode indicator for indicating enablement of an indirect addressing mode. If an indirect addressing mode is enabled, a general purpose register address is selected from an address field in an indirect register. Finally, the data processing unit addresses a selected one of the plurality of general purpose registers utilizing the general purpose register address during the execution of the operation code by the data processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.