PROCESSOR HAVING MULTIPLE PROGRAM COUNTERS AND TRACE BUFFERS OUTSIDE AN EXECUTION PIPELINE

摘要

In one embodiment of the invention, a processor (50) includes an execution pipeline (108) to concurrently execute at least portions of threads T1-T4, wherein at least one of the threads is dependant on at least another one of the threads. The processor (50) also includes detection circuitry to detect speculation errors in the execution of the threads T1-T4. In another embodiment, the processor (50) includes thread management logic (124) to control dynamic creation of threads from a program (112A).