Multi-tag system and method for cache read/write
US6493797B1 · kind B1 · utility
20Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and device are provided for reading data from a trace cache in a manner that reduces the time and power consumed by such an operation. A mini-tag is provided for comparing to a requested address to reduce the amount of data that must be read. Mini-tag read and compare operations may be performed in parallel to a full tag read operation, and a data read operation of only the data identified by a matching mini-tag may be performed in parallel to a full tag compare operation. A victim selection method for writing data into the trace cache is used to maintain the uniqueness of the mini-tags.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.