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

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Merged
merged 3 commits into from
Feb 18, 2020
Merged

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

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4bca109
Update eips.go
GregTheGreek Feb 10, 2020
dcc7fc6
add eip2200 sload gas param
GregTheGreek Feb 12, 2020
46e5f37
fix lint
GregTheGreek Feb 17, 2020
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3 changes: 2 additions & 1 deletion core/vm/eips.go
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Original file line number Diff line number Diff line change
Expand Up @@ -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{
Expand Down Expand Up @@ -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 change: 1 addition & 0 deletions params/protocol_params.go
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Expand Up @@ -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)
Expand Down