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Update EIP-2935: Adjust gas-costs for 2935 #8564

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Update EIP-2935: Adjust gas-costs for 2935 #8564

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aaf02f1
Adjust gas-costs for 2935
MarekM25 May 16, 2024
71f1bfe
Update eip-2935.md
MarekM25 May 23, 2024
8848087
Merge pull request #1 from MarekM25/2935_fix
MarekM25 May 23, 2024
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6 changes: 3 additions & 3 deletions EIPS/eip-2935.md
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Expand Up @@ -182,9 +182,9 @@ This address is currently exempt from [EIP-158](./eip-158.md) cleanup in Kaustin
* While the clients are expected to directly read from state (or maintain and serve from memory) to resolve BLOCKHASH opcode, this contract's `get` could be invoked by transaction (via another contract or directly) leading to a normal contract execution (and gas consumption) as per the semantics of the contract call.


### Gas costs and witnesses
### Gas costs

Since now `BLOCKHASH` is served from state, the clients now **additionally** charge the corresponding warm or cold `SLOAD` costs. For verkle based networks this would imply doing and bundling corresponding accesses (and gas charges) of `SLOAD`.
Gas cost for `BLOCKHASH` opcode remains unchanged and is equal to `20`.

## Rationale

Expand All @@ -206,7 +206,7 @@ The cost of doing so is marginal considering the `HISTORY_SERVE_WINDOW` being re

## Backwards Compatibility

The behavior of `BLOCKHASH` opcode gets extended in backward compatible manner as the history it can serve will get extended upto `HISTORY_SERVE_WINDOW` on the fork block. However the gas charges will also get bumped as per the additional `SLOAD` costs.
The behavior of `BLOCKHASH` opcode gets extended in backward compatible manner as the history it can serve will get extended upto `HISTORY_SERVE_WINDOW` on the fork block.

## Test Cases

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