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Fix max_cpu_len_log #714

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merged 4 commits into from
Oct 17, 2024
Merged

Fix max_cpu_len_log #714

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4f5e610
fix
sai-deng Oct 9, 2024
283d7f0
fix
sai-deng Oct 9, 2024
417ca3d
fix
sai-deng Oct 11, 2024
847468e
address comments
sai-deng Oct 17, 2024
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10 changes: 10 additions & 0 deletions evm_arithmetization/src/generation/state.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -185,6 +185,16 @@ pub(crate) trait State<F: RichField> {
{
let halt_offsets = self.get_halt_offsets();

if let Some(max_len_log) = max_cpu_len_log {
if (1 << max_len_log) < NUM_EXTRA_CYCLES_AFTER {
bail!(
"Target length (2^{}) is less than NUM_EXTRA_CYCLES_AFTER ({})",
max_len_log,
NUM_EXTRA_CYCLES_AFTER
);
}
}

let cycle_limit =
max_cpu_len_log.map(|max_len_log| (1 << max_len_log) - NUM_EXTRA_CYCLES_AFTER);

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