WIP: geth-tavum

1 files changed, 5 insertions, 5 deletions

diff --git a/core/vm/gas.go b/core/vm/gas.go
index bd8b4f1..5cf1d85 100644
--- a/core/vm/gas.go
+++ b/core/vm/gas.go
@@ -17,7 +17,7 @@
 package vm
 
 import (
-	"math/big"
+	"github.com/holiman/uint256"
 )
 
 // Gas costs
@@ -30,23 +30,23 @@ const (
 	GasExtStep     uint64 = 20
 )
 
-// calcGas returns the actual gas cost of the call.
+// callGas returns the actual gas cost of the call.
 //
 // The cost of gas was changed during the homestead price change HF.
 // As part of EIP 150 (TangerineWhistle), the returned gas is gas - base * 63 / 64.
-func callGas(isEip150 bool, availableGas, base uint64, callCost *big.Int) (uint64, error) {
+func callGas(isEip150 bool, availableGas, base uint64, callCost *uint256.Int) (uint64, error) {
 	if isEip150 {
 		availableGas = availableGas - base
 		gas := availableGas - availableGas/64
 		// If the bit length exceeds 64 bit we know that the newly calculated "gas" for EIP150
-		// is smaller than the requested amount. Therefor we return the new gas instead
+		// is smaller than the requested amount. Therefore we return the new gas instead
 		// of returning an error.
 		if !callCost.IsUint64() || gas < callCost.Uint64() {
 			return gas, nil
 		}
 	}
 	if !callCost.IsUint64() {
-		return 0, errGasUintOverflow
+		return 0, ErrGasUintOverflow
 	}
 
 	return callCost.Uint64(), nil