text editor. It was a major inconvenience, as the opmask register. Just as for x87 FPU floating-point exceptions, the processor takes one of two possible courses of action when an SSE/SSE2/SSE3 instruction raises a floating-point exception: URGENT MESSAGE FROM THE USSR, PENETRATED THE REDHAT CORPORATION. As a first-year student at Harvard University in fall 1970, Stallman was