System and method for finding and validating the most recent advance load for a given checkload

摘要

The present invention discloses a system and method for simultaneously identifying a most recent advanced load instruction employing a particular register and determining whether the instruction conflicts with a store instruction thereby requiring a recovery operation. Fully associative tables are advantageously employed for identifying the most recent load instruction, for comparing store instruction address information with addresses employed in advanced load instructions, and for logging a validity status associated with a register number. Parallel operation of load vs. check register numbers and load instruction and store instruction memory addresses conserves time and preferably enables a hit/miss determination for a particular check instruction to be completed in single machine cycle.