Merge pull request ethereum#5 from dapperscene6/dapperscene6/enable-p…

…oint-evaluation

Enable Point Evaluation Precompile

core/vm/contracts.go

@@ -110,7 +110,22 @@ var PrecompiledContractsBLS = map[common.Address]PrecompiledContract{
 	common.BytesToAddress([]byte{18}): &bls12381MapG2{},
 }
 
+var PrecompiledContractsDanksharding = map[common.Address]PrecompiledContract{
+	common.BytesToAddress([]byte{1}): &ecrecover{},
+	common.BytesToAddress([]byte{2}): &sha256hash{},
+	common.BytesToAddress([]byte{3}): &ripemd160hash{},
+	common.BytesToAddress([]byte{4}): &dataCopy{},
+	common.BytesToAddress([]byte{5}): &bigModExp{eip2565: true},
+	common.BytesToAddress([]byte{6}): &bn256AddIstanbul{},
+	common.BytesToAddress([]byte{7}): &bn256ScalarMulIstanbul{},
+	common.BytesToAddress([]byte{8}): &bn256PairingIstanbul{},
+	common.BytesToAddress([]byte{9}): &blake2F{},
+	common.BytesToAddress([]byte{20}): &pointEvaluation{},
+}
+
+
 var (
+	PrecompiledAddressesDanksharding []common.Address
 	PrecompiledAddressesBerlin    []common.Address
 	PrecompiledAddressesIstanbul  []common.Address
 	PrecompiledAddressesByzantium []common.Address
@@ -130,11 +145,16 @@ func init() {
 	for k := range PrecompiledContractsBerlin {
 		PrecompiledAddressesBerlin = append(PrecompiledAddressesBerlin, k)
 	}
+	for k := range PrecompiledContractsDanksharding {
+		PrecompiledAddressesDanksharding  = append(PrecompiledAddressesDanksharding , k)
+	}
 }
 
 // ActivePrecompiles returns the precompiles enabled with the current configuration.
 func ActivePrecompiles(rules params.Rules) []common.Address {
 	switch {
+	case rules.IsSharding:
+		return PrecompiledAddressesDanksharding
 	case rules.IsBerlin:
 		return PrecompiledAddressesBerlin
 	case rules.IsIstanbul:

core/vm/evm.go

@@ -44,6 +44,8 @@ type (
 func (evm *EVM) precompile(addr common.Address) (PrecompiledContract, bool) {
 	var precompiles map[common.Address]PrecompiledContract
 	switch {
+	case evm.chainRules.IsSharding:
+		precompiles = PrecompiledContractsDanksharding
 	case evm.chainRules.IsBerlin:
 		precompiles = PrecompiledContractsBerlin
 	case evm.chainRules.IsIstanbul: