diff options
Diffstat (limited to 'core/vm/vm.go')
| -rw-r--r-- | core/vm/vm.go | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/core/vm/vm.go b/core/vm/vm.go index 6e316acda..56aca6912 100644 --- a/core/vm/vm.go +++ b/core/vm/vm.go @@ -313,7 +313,8 @@ func calculateGasAndSize(gasTable params.GasTable, env Environment, contract *Co quadMemGas(mem, newMemSize, gas) case EXP: - gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(len(stack.data[stack.len()-2].Bytes()))), params.ExpByteGas)) + expByteLen := int64((stack.data[stack.len()-2].BitLen() + 7) / 8) + gas.Add(gas, new(big.Int).Mul(big.NewInt(expByteLen), gasTable.ExpByte)) case SSTORE: err := stack.require(2) if err != nil { |