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Spectre - Code Optimization/Branch Training concept [closed]

Trying to load "a" (lowecase a) speculatively using Spectre. Was hinted here: Spectre PoC - Paper based - opposite results that the problem why it does not load speculatively, could be not ...
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Spectre PoC - Paper based - opposite results

After long discussion with this Question (Thanks for help!) Spectre Proof of Concept (PoC) Speculative Execution - Checking for value Came up with simple PoC based on Spectre paper. Seems to be ...
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  • 997
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Spectre: Problem with Understanding POC - Reading data from cache

I understand the vulnerability (Spectre) and, in theory, what the PoC does. But I do not understand the part of the PoC, when it reads or identifys the data from the cache, between the lines 86 - 108. ...
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