Browse Prior Art Database

Microcode Analyzer

IP.com Disclosure Number: IPCOM000038978D
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Dool, DL Johnson, SD [+details]

Abstract

As microcode testing continues to absorb increasing amounts of test time and resources, an effective means of microcode test evaluation and improvement grows in importance. Microcode coverage measurement tools have been developed to assist the tester in devising more efficient test case libraries to accommodate shrinking test cycles. Objectives in the creation of a microcode analyzer included the ability to simultaneously monitor multiple processors and to provide coverage measurements for prefetch type processors. The analyzer using an IBM Personal Computer (PC) results in a portable unit. Coverage measurements made by the analyzer include recording the microcode control-paths executed and the frequency of execution during the test period.