core/vm: use dedicated SLOAD gas constant for EIP-2200#20646
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GregTheGreek
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Not sure why there are a few tests failing on the AMD tests, any insights would be great! |
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@GregTheGreek If we're going to merge this, I really prefer the diff @meowsbits submitted to ETC. It's cleaner and more elegantly separates things. Wanna change the PR to that? |
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@karalabe makes a lot of sense to me, I've updated it |
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Feb 12, 2020
| SloadGasFrontier uint64 = 50 | ||
| SloadGasEIP150 uint64 = 200 | ||
| SloadGasEIP1884 uint64 = 800 // Cost of SLOAD after EIP 1884 (part of Istanbul) | ||
| SloadGasEIP2200 uint64 = 800 // Cost of SLOAD after EIP 2200 (part of Istanbul) |
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Pls fix formatting, otherwise linter will whine :D
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Sorry on it! Spent the weekend without a computer... Crazy I know.
fjl
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fjl
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Thanks, everyone! |
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I was doing some bench marking and analysis surrounding some of the recent EIPs. While tinkering with EIP-1884 I accidentally created a split on a private network between Parity, Besu and Geth, where Parity and Geth forked together with SLOAD_GAS of 200 rather than 800. After investigating, I discovered that EIP-2200 was "technically" incorrectly implemented.
EIP-1884 and EIP-2200 both adjust
SLOAD_GASfrom200to800- but the current implementation of EIP-2200 assumes that EIP-1884 is already implemented, and only adjustsSSTORE.This PR adds the EIP-1884
SLOAD_GASchanges to EIP-2200.There is a Sibling PR in Parity