Microcomputer with change of flow
US4763253A · kind A · utility
14Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1986 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Nov 17, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3804
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microcomputer has the capacity for executing instructions, requesting prefetches of instructions, and experiencing a change in instruction flow, or a branch. The microcomputer also knows in advance that a change in instruction flow is going to occur. At such time that a branch becomes known there may also be a pending instruction prefetch request. Because a branch is going to occur, there is no need to execute the prefetch. Consequently, the pending instruction prefetch is flushed which thus avoids wasting time making an unnecessary instruction prefetch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.