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  第一章-计算机系统概述

Memory disambiguation

"disambiguation"的含义是"消除歧义"。

Memory disambiguation也是由out-of-order-execution引发的。

wikipedia Memory disambiguation

Memory disambiguation is a set of techniques employed by high-performance out-of-order execution microprocessors that execute memory access instructions (loads and stores) out of program order. The mechanisms for performing memory disambiguation, implemented using digital logic inside the microprocessor core, detect true dependencies between memory operations at execution time and allow the processor to recover when a dependence has been violated. They also eliminate spurious memory dependencies and allow for greater instruction-level parallelism by allowing safe out-of-order execution of loads and stores.