Patent · US Expired

Variable length cache fill

US4994962A · kind A · utility

15Cited by
7References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 28, 1988
Grant dateFeb 19, 1991
Priority date
Expiry dateOct 28, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2212/6026
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A method and apparatus for selectively filling a cache memory with a variable number of data words in response to the size and type of data transfer requested by the processor associated with the cache. According to the present invention a cache fill of either 16 or 64 bytes are provided. If there is a cache miss and an 8 byte word data transfer as requested, the larger fill is provided, similarly, if the 8 byte word data transfer is not requested, the shorter block of data is provided, resulting in enhanced performance over a fixed length cache fill.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.