Enhanced microcode address stack pointer manipulation
US8832419B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 24, 2010 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Jun 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for enhanced microcode address stack pointer manipulation are described. In some examples, the stacks are invisible to software. A microcode instruction pointer (UIP) and a next address to be accessed in a microcode storage unit may be generated based on an opcode of a microoperation, a marker, and a UIP stack address. The UIP stack address may be generated based on a signal and an immediate field of the microoperation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.