Browse Prior Art Database

Separate Look-A-Side Buffer Change Bit Array

IP.com Disclosure Number: IPCOM000037566D
Original Publication Date: 1989-Mar-01
Included in the Prior Art Database: 2005-Jan-29

Publishing Venue

IBM

Related People

Authors:
Grosbach, LE Lakkis, EJ Schmierer, QG [+details]

Abstract

The Virtual Address Translator (VAT) of a certain computer system uses a fast look-up table to translate virtual addresses. The look-up table consists of the last translated virtual addresses and is called the Look-A-Side buffer (LB). This array allows the Virtual Address Translator (VAT) to write the Look-A-Side Buffer (LB) Change bit without doing a read-modify-write of the Look-A- Side Buffer array and removes a processor cycle required to set the LB Change bit.