LOAD A LOCK-BASED AND SYNCH-BASED METHOD FOR OUT OF ORDER LOADS IN A MEMORY CONSISTENCY MODEL USING SHARED MEMORY RESOURCES

摘要

In a processor, it is disclosed a lock-based method for the out-of-order load from memory consistency models using shared memory resources. The method for implementing a memory resource that can be accessed by a plurality of cores; And one word of the cache line that includes the step of implementing access mask function by tracking whether the access via the load, the cache line is a memory resource, load the access mask when accessing the word of the cache line set in the mask bit and a mask bit is to shut off the access from the other load from a plurality of cores. The method includes the steps of checking the access mask at the time of execution of a subsequent store to the cache line from the plurality of cores; And the load by a subsequent store in a portion of a cache line, and further comprising the step of causing a prediction error when viewing the previous mark from a load at an access mask, use of a subsequent store the tracker registers and the thread ID register load will signal a queue entry corresponding to.;