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core/vm: use dedicated SLOAD gas constant for EIP-2200 (#20646)

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Gregory Markou 2020-02-18 06:07:41 -08:00 committed by GitHub
parent 529b81dadb
commit 4be8840120
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2 changed files with 3 additions and 1 deletions
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3
core/vm/eips.go
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@ -46,9 +46,9 @@ func EnableEIP(eipNum int, jt *JumpTable) error {
// - Define SELFBALANCE, with cost GasFastStep (5)
func enable1884(jt *JumpTable) {
// Gas cost changes
jt[SLOAD].constantGas = params.SloadGasEIP1884
jt[BALANCE].constantGas = params.BalanceGasEIP1884
jt[EXTCODEHASH].constantGas = params.ExtcodeHashGasEIP1884
jt[SLOAD].constantGas = params.SloadGasEIP1884
// New opcode
jt[SELFBALANCE] = operation{
@ -88,5 +88,6 @@ func opChainID(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memo
// enable2200 applies EIP-2200 (Rebalance net-metered SSTORE)
func enable2200(jt *JumpTable) {
jt[SLOAD].constantGas = params.SloadGasEIP2200
jt[SSTORE].dynamicGas = gasSStoreEIP2200
}

1
params/protocol_params.go
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@ -90,6 +90,7 @@ const (
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)
ExtcodeHashGasConstantinople uint64 = 400 // Cost of EXTCODEHASH (introduced in Constantinople)
ExtcodeHashGasEIP1884 uint64 = 700 // Cost of EXTCODEHASH after EIP 1884 (part in Istanbul)
SelfdestructGasEIP150 uint64 = 5000 // Cost of SELFDESTRUCT post EIP 150 (Tangerine)