Browse Prior Art Database

Microcode Exposure of Errant Branches

IP.com Disclosure Number: IPCOM000068891D
Original Publication Date: 1978-Mar-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Headrick, RW [+details]

Abstract

Program analysis for errant branches is aided by saving the current branch instruction that causes a problem. Such referral is accomplished by storing the address of this instruction via microcode in an internal "save" area in response to selected Program Checks. A programmer is then able to backtrack to the last branch instruction.