Revert "params: core, core/vm, miner: 64bit gas instructions (#3514)"

This reverts commit 8b57c49490.

core/vm/runtime/runtime.go

@@ -17,7 +17,6 @@
 package runtime
 
 import (
-	"math"
 	"math/big"
 	"time"
 
@@ -38,7 +37,7 @@ type Config struct {
 	Coinbase    common.Address
 	BlockNumber *big.Int
 	Time        *big.Int
-	GasLimit    uint64
+	GasLimit    *big.Int
 	GasPrice    *big.Int
 	Value       *big.Int
 	DisableJit  bool // "disable" so it's enabled by default
@@ -69,8 +68,8 @@ func setDefaults(cfg *Config) {
 	if cfg.Time == nil {
 		cfg.Time = big.NewInt(time.Now().Unix())
 	}
-	if cfg.GasLimit == 0 {
-		cfg.GasLimit = math.MaxUint64
+	if cfg.GasLimit == nil {
+		cfg.GasLimit = new(big.Int).Set(common.MaxBig)
 	}
 	if cfg.GasPrice == nil {
 		cfg.GasPrice = new(big.Int)
@@ -113,7 +112,7 @@ func Execute(code, input []byte, cfg *Config) ([]byte, *state.StateDB, error) {
 	receiver.SetCode(crypto.Keccak256Hash(code), code)
 
 	// Call the code with the given configuration.
-	ret, _, err := vmenv.Call(
+	ret, err := vmenv.Call(
 		sender,
 		receiver.Address(),
 		input,
@@ -141,13 +140,12 @@ func Create(input []byte, cfg *Config) ([]byte, common.Address, error) {
 	)
 
 	// Call the code with the given configuration.
-	code, address, _, err := vmenv.Create(
+	return vmenv.Create(
 		sender,
 		input,
 		cfg.GasLimit,
 		cfg.Value,
 	)
-	return code, address, err
 }
 
 // Call executes the code given by the contract's address. It will return the
@@ -162,7 +160,7 @@ func Call(address common.Address, input []byte, cfg *Config) ([]byte, error) {
 
 	sender := cfg.State.GetOrNewStateObject(cfg.Origin)
 	// Call the code with the given configuration.
-	ret, _, err := vmenv.Call(
+	ret, err := vmenv.Call(
 		sender,
 		address,
 		input,