`MMU` should read less in exoModule and use less the CallStackReader

Consensys / linea-tracer

Part of the Linea stack responsible for extracting data from the execution of an EVM client in order to construct large matrices called execution traces.

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`MMU` should read less in exoModule and use less the CallStackReader #689

Closed letypequividelespoubelles closed 3 months ago

letypequividelespoubelles commented 7 months ago

Hub could give directly sourceRam / targetRam. One less call to callStackReader if the src / tgt is the currentFrame
for exoBytes, MMU could get it from the ram when it's an ram to exo instructions. For exoToRamStransplant too when copying precompile result, as it's already written in the tgt ram fictitious context number

letypequividelespoubelles commented 4 months ago

given https://github.com/Consensys/linea-arithmetization/issues/810, MMU is now given the src / exo RAM when needed, and we could / should safe delete all the callStackReader in MMU

letypequividelespoubelles commented 4 months ago

need to do a clean-up of the MMU