Instruction decoding mechanism for reducing execution time by earlier detection and replacement of indirect addresses with direct addresses
US5860155A · kind A · utility
3Cited by
5References
5Claims
0Family size
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Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30145
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The mechanism includes a virtual address detecting circuit for detecting the virtual address of the instruction code. When a virtual address is detected, an indicating signal is generated, which is then sent to an indirect address register to register the indirect address of the instruction code. Thereafter, an indirect address replacing circuit is used to decode and replace the indirect address registered in and sent from the indirect address register with a direct address. In the absence of the virtual address, the direct address is allowed to pass through the indirect address replacing circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.