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1884: move SELFBALANCE op from 0x46 to 0x47 #2180

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Jul 7, 2019
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1884: move SELFBALANCE op from 0x46 to 0x47 #2180

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6 changes: 3 additions & 3 deletions EIPS/eip-1884.md
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Expand Up @@ -7,7 +7,7 @@ category: Core
discussions-to: https://ethereum-magicians.org/t/opcode-repricing/3024
status: Draft
created: 2019-03-28
requires: 150
requires: 150, 1052
---


Expand Down Expand Up @@ -37,7 +37,7 @@ At block `N`,
- The `SLOAD` (`0x54`) operation changes from `200` to `800` gas,
- The `BALANCE` (`0x31`) operation changes from `400` to `700` gas,
- The `EXTCODEHASH` (`0x3F`) operation changes from `400` to `700` gas,
- A new opcode, `SELFBALANCE` is introduced at `0x46`.
- A new opcode, `SELFBALANCE` is introduced at `0x47`.
- `SELFBALANCE` pops `0` arguments off the stack,
- `SELFBALANCE` pushes the `balance` of the current address to the stack,
- `SELFBALANCE` is priced as `GasFastStep`, at `5` gas.
Expand Down Expand Up @@ -94,7 +94,7 @@ opcodes: `EXTBALANCE(address)` and `SELFBALANCE`, and have two different prices.

### `EXTCODEHASH`

`EXTCODEHASH` was introduced in Constantinople, with [EIP 1052](https://eips.ethereum.org/EIPS/eip-1052). It was priced at `400` with the reasoning:
`EXTCODEHASH` was introduced in Constantinople, with [EIP-1052](https://eips.ethereum.org/EIPS/eip-1052). It was priced at `400` with the reasoning:

> The gas cost is the same as the gas cost for the `BALANCE` opcode because the execution of the `EXTCODEHASH` requires the same account lookup as in `BALANCE`.

Expand Down