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How does an atomic operation guarantee consistency from a hardware perspective?
Fresh5 days ago
Mar 15, 20263916 viewsConfidence Score0%
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As far as I know, an atomic instruction makes sure that when it is executed, no other threads can modify that data (just like a critical section). Am I correct? How is this implemented in hardware? How does hardware guarantee this? (Does the hardware generate three micro instructions internally: un…
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Fix for: How does an atomic operation guarantee consistency from a hardware perspective?
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The details are complex; in a single processor it is simple enough to implement some equivalent of "lock, modify, unlock" at the microcode level - or other techniques. Once you have multiple processors the subject gets complex, especially in view of…
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