updated jumptable

core/vm/instructions.go

@@ -1003,13 +1003,3 @@ func makeDup(size int64) executionFunc {
 		return nil, nil
 	}
 }
-
-// make swap instruction function
-func makeSwap(size int64) executionFunc {
-	// switch n + 1 otherwise n would be swapped with n
-	size++
-	return func(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
-		scope.Stack.swap(int(size))
-		return nil, nil
-	}
-}

core/vm/jump_table.go

@@ -892,97 +892,97 @@ func newFrontierInstructionSet() JumpTable {
 			maxStack:    maxDupStack(16),
 		},
 		SWAP1: {
-			execute:     makeSwap(1),
+			execute:     opSwap1,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(2),
 			maxStack:    maxSwapStack(2),
 		},
 		SWAP2: {
-			execute:     makeSwap(2),
+			execute:     opSwap2,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(3),
 			maxStack:    maxSwapStack(3),
 		},
 		SWAP3: {
-			execute:     makeSwap(3),
+			execute:     opSwap3,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(4),
 			maxStack:    maxSwapStack(4),
 		},
 		SWAP4: {
-			execute:     makeSwap(4),
+			execute:     opSwap4,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(5),
 			maxStack:    maxSwapStack(5),
 		},
 		SWAP5: {
-			execute:     makeSwap(5),
+			execute:     opSwap5,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(6),
 			maxStack:    maxSwapStack(6),
 		},
 		SWAP6: {
-			execute:     makeSwap(6),
+			execute:     opSwap6,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(7),
 			maxStack:    maxSwapStack(7),
 		},
 		SWAP7: {
-			execute:     makeSwap(7),
+			execute:     opSwap7,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(8),
 			maxStack:    maxSwapStack(8),
 		},
 		SWAP8: {
-			execute:     makeSwap(8),
+			execute:     opSwap8,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(9),
 			maxStack:    maxSwapStack(9),
 		},
 		SWAP9: {
-			execute:     makeSwap(9),
+			execute:     opSwap9,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(10),
 			maxStack:    maxSwapStack(10),
 		},
 		SWAP10: {
-			execute:     makeSwap(10),
+			execute:     opSwap10,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(11),
 			maxStack:    maxSwapStack(11),
 		},
 		SWAP11: {
-			execute:     makeSwap(11),
+			execute:     opSwap11,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(12),
 			maxStack:    maxSwapStack(12),
 		},
 		SWAP12: {
-			execute:     makeSwap(12),
+			execute:     opSwap12,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(13),
 			maxStack:    maxSwapStack(13),
 		},
 		SWAP13: {
-			execute:     makeSwap(13),
+			execute:     opSwap13,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(14),
 			maxStack:    maxSwapStack(14),
 		},
 		SWAP14: {
-			execute:     makeSwap(14),
+			execute:     opSwap14,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(15),
 			maxStack:    maxSwapStack(15),
 		},
 		SWAP15: {
-			execute:     makeSwap(15),
+			execute:     opSwap15,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(16),
 			maxStack:    maxSwapStack(16),
 		},
 		SWAP16: {
-			execute:     makeSwap(16),
+			execute:     opSwap16,
 			constantGas: GasFastestStep,
 			minStack:    minSwapStack(17),
 			maxStack:    maxSwapStack(17),