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DescriptionQ925
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Q925ArchDVAppleASIC interview problem

Recover from a speculative memory-order violation

TechniquesArchDVCPULoad-store queueReplay
DifficultyMedium
TopicMemory Systems
LanguageSystemVerilog
Format4 choices
01

Problem

A younger load executes before an older store's address is known. The store later resolves to an overlapping address. What must the processor do?

02

Answer choices (4)