MICRO-43 is the premier forum for presenting, discussing and debating new and innovative microarchitecture ideas and techniques for advanced computing and communication systems. The goal of this symposium is to bring together researchers in fields related to processor architecture, compilers, and systems, for technical exchange on traditional MICRO topics as well as new emerging research areas. Historically, the MICRO community has enjoyed having close interaction between academic researchers and industrial designers; we aim to continue and emphasize this tradition at MICRO-43. In 2010, MICRO goes to Atlanta, Georgia.