Constant ISTANBUL_SLOAD_GAS
pub const ISTANBUL_SLOAD_GAS: u64 = 800; // 800u64Expand description
EIP-1884: Repricing for trie-size-dependent opcodes
pub const ISTANBUL_SLOAD_GAS: u64 = 800; // 800u64EIP-1884: Repricing for trie-size-dependent opcodes