Browse Prior Art Database

Read Only Store Patch

IP.com Disclosure Number: IPCOM000052373D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Doehle, L Maier, U Rank, R [+details]

Abstract

In a modular read-only store (ROS) configuration, as shown in Fig. 1, all ROS information is accessed via a branch vector table (BVT). This BVT contains the addresses of all entries to the ROS information, such as micro-code routines. In the illustrated configuration, ROS module A contains the BVT and part of the micro-code.