Intel Corporation
Method and apparatus for data-ready memory operations

Abstract:

Disclosed embodiments relate to a new instruction for performing data-ready memory access operations. In one example, a system includes circuits to fetch, decode, and execute an instruction that includes an opcode, at least one memory location identifier identifying at least one data element, a register identifier, a data readiness indicator identifying at least one data access condition, and a data readiness mask, wherein the execution circuit is to, for each data element of the at least one data element, determine whether a memory request for the data element satisfies the at least one data access condition identified by the data readiness indicator, and in response to determining that the data access condition: generate a prefetch request for the data element, and set a value in a corresponding data element position of the data readiness mask to indicate that the memory request for the data element does not satisfy the at least one data access condition.