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Soundness: skip last row #6

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Soundness: skip last row #6

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14 changes: 7 additions & 7 deletions extensions/native/circuit/src/poseidon2/chip.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -411,13 +411,13 @@ impl<F: PrimeField32, const SBOX_REGISTERS: usize> InstructionExecutor<F>
self.height += 1;
}

let last_record = observation_records.last_mut().unwrap();
let final_idx = last_record.end_idx % CHUNK;
let (write_final, _) = memory.write_cell(register_address_space, input_register_1, F::from_canonical_usize(final_idx));
last_record.is_last = true;
last_record.write_final_idx = write_final;
last_record.final_idx = final_idx;
curr_timestamp += 1;
// let last_record = observation_records.last_mut().unwrap();
// let final_idx = last_record.end_idx % CHUNK;
// let (write_final, _) = memory.write_cell(register_address_space, input_register_1, F::from_canonical_usize(final_idx));
// last_record.is_last = true;
// last_record.write_final_idx = write_final;
// last_record.final_idx = final_idx;
// curr_timestamp += 1;

for record in &mut observation_records {
record.final_timestamp_increment = curr_timestamp;
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