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Calculate the correct number for block hash in table assignment #84

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Jan 12, 2022
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Calculate the correct number for block hash in table assignment #84

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4 changes: 2 additions & 2 deletions src/zkevm_specs/evm/typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ def __init__(
base_fee: U256 = int(1e9),
history_hashes: Sequence[U256] = [],
) -> None:
assert len(history_hashes) <= 256
assert len(history_hashes) <= min(256, block_number)

self.coinbase = coinbase
self.gas_limit = gas_limit
Expand All @@ -46,7 +46,7 @@ def table_assignments(self, rlc_store: RLCStore) -> Sequence[Array3]:
(BlockContextFieldTag.Difficulty, 0, rlc_store.to_rlc(self.difficulty, 32)),
(BlockContextFieldTag.BaseFee, 0, rlc_store.to_rlc(self.base_fee, 32)),
] + [
(BlockContextFieldTag.BlockHash, self.block_number + idx - 1, rlc_store.to_rlc(block_hash, 32))
(BlockContextFieldTag.BlockHash, self.block_number - idx - 1, rlc_store.to_rlc(block_hash, 32))
for idx, block_hash in enumerate(reversed(self.history_hashes))
]

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