Andreas Muehlbach IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (muhlbachde.ibm.com). Mr. Muehlbach holds a Dipl.-Ing. degree in electrical engineering and computer science from the Technical University of Kaiserslautern. He is a Senior Development Engineer working in processor firmware development for IBM 9221, CMOS G1 to G6 processors, z900, z990, and z9.

Brian D. Valentine IBM Systems and Technology Group, 1701 North Street, Endicott, New York 13760 (bdvalentus.ibm.com). Mr. Valentine graduated from Pennsylvania State University with a B.S degree in computer science. He is a Senior Technical Staff Member Programmer working in HMC and SE Licensed Internal Code development.

Daniela Immel IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (immel1de.ibm.com). Mrs. Immel received her B.S. degree in business information systems from the University of Applied Sciences, Karlsruhe. She is a Staff Development Engineer in zSeries processor firmware.

Michael S. Bomar IBM Systems and Technology Group, 1701 North Street, Endicott, New York 13760 (bomarmsus.ibm.com). Mr. Bomar received a B.S. degree in computer science from the University of Tennessee. He is an Advisory Programmer working in HMC and SE Licensed Internal Code development.

Timothy V. Bolan IBM Systems and Technology Group, 1701 North Street, Endicott, New York 13760 (bolantus.ibm.com). Mr. Bolan graduated from Rensselaer Polytechnic Institute with a B.S. degree in electrical engineering. He is a Senior Engineer working in HMC and SE Licensed Internal Code development.