diff --git a/txscript/internal_test.go b/txscript/internal_test.go
index c40e269f5..af1757567 100644
--- a/txscript/internal_test.go
+++ b/txscript/internal_test.go
@@ -378,33 +378,17 @@ func (vm *Engine) TstSetPC(script, off int) {
 
 // Internal tests for opcodde parsing with bad data templates.
 func TestParseOpcode(t *testing.T) {
-	fakemap := make(map[byte]*opcode)
-	// deep copy
-	for k, v := range opcodemap {
-		fakemap[k] = v
-	}
+	// Deep copy the array.
+	fakeArray := opcodeArray
 	// wrong length -8.
-	fakemap[OP_PUSHDATA4] = &opcode{value: OP_PUSHDATA4,
+	fakeArray[OP_PUSHDATA4] = opcode{value: OP_PUSHDATA4,
 		name: "OP_PUSHDATA4", length: -8, opfunc: opcodePushData}
 
 	// this script would be fine if -8 was a valid length.
 	_, err := parseScriptTemplate([]byte{OP_PUSHDATA4, 0x1, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x00, 0x00}, fakemap)
+		0x00, 0x00, 0x00, 0x00, 0x00}, &fakeArray)
 	if err == nil {
-		t.Errorf("no error with dodgy opcode map!")
-	}
-
-	// Missing entry.
-	fakemap = make(map[byte]*opcode)
-	for k, v := range opcodemap {
-		fakemap[k] = v
-	}
-	delete(fakemap, OP_PUSHDATA4)
-	// this script would be fine if -8 was a valid length.
-	_, err = parseScriptTemplate([]byte{OP_PUSHDATA4, 0x1, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x00, 0x00}, fakemap)
-	if err == nil {
-		t.Errorf("no error with dodgy opcode map (missing entry)!")
+		t.Errorf("no error with dodgy opcode array!")
 	}
 }
 
@@ -418,7 +402,7 @@ var popTests = []popTest{
 	{
 		name: "OP_FALSE",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_FALSE],
+			opcode: &opcodeArray[OP_FALSE],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -426,7 +410,7 @@ var popTests = []popTest{
 	{
 		name: "OP_FALSE long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_FALSE],
+			opcode: &opcodeArray[OP_FALSE],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -434,7 +418,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_1 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_1],
+			opcode: &opcodeArray[OP_DATA_1],
 			data:   nil,
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -442,7 +426,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_1",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_1],
+			opcode: &opcodeArray[OP_DATA_1],
 			data:   make([]byte, 1),
 		},
 		expectedErr: nil,
@@ -450,7 +434,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_1 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_1],
+			opcode: &opcodeArray[OP_DATA_1],
 			data:   make([]byte, 2),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -458,7 +442,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_2 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_2],
+			opcode: &opcodeArray[OP_DATA_2],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -466,7 +450,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_2",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_2],
+			opcode: &opcodeArray[OP_DATA_2],
 			data:   make([]byte, 2),
 		},
 		expectedErr: nil,
@@ -474,7 +458,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_2 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_2],
+			opcode: &opcodeArray[OP_DATA_2],
 			data:   make([]byte, 3),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -482,7 +466,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_3 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_3],
+			opcode: &opcodeArray[OP_DATA_3],
 			data:   make([]byte, 2),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -490,7 +474,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_3",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_3],
+			opcode: &opcodeArray[OP_DATA_3],
 			data:   make([]byte, 3),
 		},
 		expectedErr: nil,
@@ -498,7 +482,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_3 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_3],
+			opcode: &opcodeArray[OP_DATA_3],
 			data:   make([]byte, 4),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -506,7 +490,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_4 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_4],
+			opcode: &opcodeArray[OP_DATA_4],
 			data:   make([]byte, 3),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -514,7 +498,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_4",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_4],
+			opcode: &opcodeArray[OP_DATA_4],
 			data:   make([]byte, 4),
 		},
 		expectedErr: nil,
@@ -522,7 +506,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_4 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_4],
+			opcode: &opcodeArray[OP_DATA_4],
 			data:   make([]byte, 5),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -530,7 +514,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_5 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_5],
+			opcode: &opcodeArray[OP_DATA_5],
 			data:   make([]byte, 4),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -538,7 +522,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_5",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_5],
+			opcode: &opcodeArray[OP_DATA_5],
 			data:   make([]byte, 5),
 		},
 		expectedErr: nil,
@@ -546,7 +530,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_5 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_5],
+			opcode: &opcodeArray[OP_DATA_5],
 			data:   make([]byte, 6),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -554,7 +538,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_6 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_6],
+			opcode: &opcodeArray[OP_DATA_6],
 			data:   make([]byte, 5),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -562,7 +546,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_6",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_6],
+			opcode: &opcodeArray[OP_DATA_6],
 			data:   make([]byte, 6),
 		},
 		expectedErr: nil,
@@ -570,7 +554,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_6 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_6],
+			opcode: &opcodeArray[OP_DATA_6],
 			data:   make([]byte, 7),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -578,7 +562,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_7 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_7],
+			opcode: &opcodeArray[OP_DATA_7],
 			data:   make([]byte, 6),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -586,7 +570,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_7",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_7],
+			opcode: &opcodeArray[OP_DATA_7],
 			data:   make([]byte, 7),
 		},
 		expectedErr: nil,
@@ -594,7 +578,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_7 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_7],
+			opcode: &opcodeArray[OP_DATA_7],
 			data:   make([]byte, 8),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -602,7 +586,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_8 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_8],
+			opcode: &opcodeArray[OP_DATA_8],
 			data:   make([]byte, 7),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -610,7 +594,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_8",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_8],
+			opcode: &opcodeArray[OP_DATA_8],
 			data:   make([]byte, 8),
 		},
 		expectedErr: nil,
@@ -618,7 +602,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_8 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_8],
+			opcode: &opcodeArray[OP_DATA_8],
 			data:   make([]byte, 9),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -626,7 +610,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_9 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_9],
+			opcode: &opcodeArray[OP_DATA_9],
 			data:   make([]byte, 8),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -634,7 +618,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_9",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_9],
+			opcode: &opcodeArray[OP_DATA_9],
 			data:   make([]byte, 9),
 		},
 		expectedErr: nil,
@@ -642,7 +626,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_9 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_9],
+			opcode: &opcodeArray[OP_DATA_9],
 			data:   make([]byte, 10),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -650,7 +634,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_10 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_10],
+			opcode: &opcodeArray[OP_DATA_10],
 			data:   make([]byte, 9),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -658,7 +642,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_10",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_10],
+			opcode: &opcodeArray[OP_DATA_10],
 			data:   make([]byte, 10),
 		},
 		expectedErr: nil,
@@ -666,7 +650,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_10 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_10],
+			opcode: &opcodeArray[OP_DATA_10],
 			data:   make([]byte, 11),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -674,7 +658,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_11 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_11],
+			opcode: &opcodeArray[OP_DATA_11],
 			data:   make([]byte, 10),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -682,7 +666,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_11",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_11],
+			opcode: &opcodeArray[OP_DATA_11],
 			data:   make([]byte, 11),
 		},
 		expectedErr: nil,
@@ -690,7 +674,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_11 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_11],
+			opcode: &opcodeArray[OP_DATA_11],
 			data:   make([]byte, 12),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -698,7 +682,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_12 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_12],
+			opcode: &opcodeArray[OP_DATA_12],
 			data:   make([]byte, 11),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -706,7 +690,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_12",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_12],
+			opcode: &opcodeArray[OP_DATA_12],
 			data:   make([]byte, 12),
 		},
 		expectedErr: nil,
@@ -714,7 +698,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_12 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_12],
+			opcode: &opcodeArray[OP_DATA_12],
 			data:   make([]byte, 13),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -722,7 +706,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_13 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_13],
+			opcode: &opcodeArray[OP_DATA_13],
 			data:   make([]byte, 12),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -730,7 +714,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_13",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_13],
+			opcode: &opcodeArray[OP_DATA_13],
 			data:   make([]byte, 13),
 		},
 		expectedErr: nil,
@@ -738,7 +722,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_13 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_13],
+			opcode: &opcodeArray[OP_DATA_13],
 			data:   make([]byte, 14),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -746,7 +730,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_14 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_14],
+			opcode: &opcodeArray[OP_DATA_14],
 			data:   make([]byte, 13),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -754,7 +738,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_14",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_14],
+			opcode: &opcodeArray[OP_DATA_14],
 			data:   make([]byte, 14),
 		},
 		expectedErr: nil,
@@ -762,7 +746,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_14 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_14],
+			opcode: &opcodeArray[OP_DATA_14],
 			data:   make([]byte, 15),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -770,7 +754,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_15 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_15],
+			opcode: &opcodeArray[OP_DATA_15],
 			data:   make([]byte, 14),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -778,7 +762,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_15",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_15],
+			opcode: &opcodeArray[OP_DATA_15],
 			data:   make([]byte, 15),
 		},
 		expectedErr: nil,
@@ -786,7 +770,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_15 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_15],
+			opcode: &opcodeArray[OP_DATA_15],
 			data:   make([]byte, 16),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -794,7 +778,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_16 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_16],
+			opcode: &opcodeArray[OP_DATA_16],
 			data:   make([]byte, 15),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -802,7 +786,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_16",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_16],
+			opcode: &opcodeArray[OP_DATA_16],
 			data:   make([]byte, 16),
 		},
 		expectedErr: nil,
@@ -810,7 +794,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_16 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_16],
+			opcode: &opcodeArray[OP_DATA_16],
 			data:   make([]byte, 17),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -818,7 +802,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_17 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_17],
+			opcode: &opcodeArray[OP_DATA_17],
 			data:   make([]byte, 16),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -826,7 +810,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_17",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_17],
+			opcode: &opcodeArray[OP_DATA_17],
 			data:   make([]byte, 17),
 		},
 		expectedErr: nil,
@@ -834,7 +818,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_17 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_17],
+			opcode: &opcodeArray[OP_DATA_17],
 			data:   make([]byte, 18),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -842,7 +826,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_18 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_18],
+			opcode: &opcodeArray[OP_DATA_18],
 			data:   make([]byte, 17),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -850,7 +834,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_18",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_18],
+			opcode: &opcodeArray[OP_DATA_18],
 			data:   make([]byte, 18),
 		},
 		expectedErr: nil,
@@ -858,7 +842,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_18 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_18],
+			opcode: &opcodeArray[OP_DATA_18],
 			data:   make([]byte, 19),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -866,7 +850,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_19 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_19],
+			opcode: &opcodeArray[OP_DATA_19],
 			data:   make([]byte, 18),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -874,7 +858,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_19",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_19],
+			opcode: &opcodeArray[OP_DATA_19],
 			data:   make([]byte, 19),
 		},
 		expectedErr: nil,
@@ -882,7 +866,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_19 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_19],
+			opcode: &opcodeArray[OP_DATA_19],
 			data:   make([]byte, 20),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -890,7 +874,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_20 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_20],
+			opcode: &opcodeArray[OP_DATA_20],
 			data:   make([]byte, 19),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -898,7 +882,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_20",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_20],
+			opcode: &opcodeArray[OP_DATA_20],
 			data:   make([]byte, 20),
 		},
 		expectedErr: nil,
@@ -906,7 +890,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_20 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_20],
+			opcode: &opcodeArray[OP_DATA_20],
 			data:   make([]byte, 21),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -914,7 +898,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_21 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_21],
+			opcode: &opcodeArray[OP_DATA_21],
 			data:   make([]byte, 20),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -922,7 +906,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_21",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_21],
+			opcode: &opcodeArray[OP_DATA_21],
 			data:   make([]byte, 21),
 		},
 		expectedErr: nil,
@@ -930,7 +914,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_21 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_21],
+			opcode: &opcodeArray[OP_DATA_21],
 			data:   make([]byte, 22),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -938,7 +922,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_22 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_22],
+			opcode: &opcodeArray[OP_DATA_22],
 			data:   make([]byte, 21),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -946,7 +930,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_22",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_22],
+			opcode: &opcodeArray[OP_DATA_22],
 			data:   make([]byte, 22),
 		},
 		expectedErr: nil,
@@ -954,7 +938,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_22 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_22],
+			opcode: &opcodeArray[OP_DATA_22],
 			data:   make([]byte, 23),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -962,7 +946,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_23 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_23],
+			opcode: &opcodeArray[OP_DATA_23],
 			data:   make([]byte, 22),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -970,7 +954,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_23",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_23],
+			opcode: &opcodeArray[OP_DATA_23],
 			data:   make([]byte, 23),
 		},
 		expectedErr: nil,
@@ -978,7 +962,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_23 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_23],
+			opcode: &opcodeArray[OP_DATA_23],
 			data:   make([]byte, 24),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -986,7 +970,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_24 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_24],
+			opcode: &opcodeArray[OP_DATA_24],
 			data:   make([]byte, 23),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -994,7 +978,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_24",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_24],
+			opcode: &opcodeArray[OP_DATA_24],
 			data:   make([]byte, 24),
 		},
 		expectedErr: nil,
@@ -1002,7 +986,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_24 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_24],
+			opcode: &opcodeArray[OP_DATA_24],
 			data:   make([]byte, 25),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1010,7 +994,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_25 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_25],
+			opcode: &opcodeArray[OP_DATA_25],
 			data:   make([]byte, 24),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1018,7 +1002,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_25",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_25],
+			opcode: &opcodeArray[OP_DATA_25],
 			data:   make([]byte, 25),
 		},
 		expectedErr: nil,
@@ -1026,7 +1010,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_25 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_25],
+			opcode: &opcodeArray[OP_DATA_25],
 			data:   make([]byte, 26),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1034,7 +1018,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_26 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_26],
+			opcode: &opcodeArray[OP_DATA_26],
 			data:   make([]byte, 25),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1042,7 +1026,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_26",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_26],
+			opcode: &opcodeArray[OP_DATA_26],
 			data:   make([]byte, 26),
 		},
 		expectedErr: nil,
@@ -1050,7 +1034,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_26 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_26],
+			opcode: &opcodeArray[OP_DATA_26],
 			data:   make([]byte, 27),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1058,7 +1042,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_27 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_27],
+			opcode: &opcodeArray[OP_DATA_27],
 			data:   make([]byte, 26),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1066,7 +1050,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_27",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_27],
+			opcode: &opcodeArray[OP_DATA_27],
 			data:   make([]byte, 27),
 		},
 		expectedErr: nil,
@@ -1074,7 +1058,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_27 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_27],
+			opcode: &opcodeArray[OP_DATA_27],
 			data:   make([]byte, 28),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1082,7 +1066,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_28 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_28],
+			opcode: &opcodeArray[OP_DATA_28],
 			data:   make([]byte, 27),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1090,7 +1074,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_28",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_28],
+			opcode: &opcodeArray[OP_DATA_28],
 			data:   make([]byte, 28),
 		},
 		expectedErr: nil,
@@ -1098,7 +1082,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_28 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_28],
+			opcode: &opcodeArray[OP_DATA_28],
 			data:   make([]byte, 29),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1106,7 +1090,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_29 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_29],
+			opcode: &opcodeArray[OP_DATA_29],
 			data:   make([]byte, 28),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1114,7 +1098,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_29",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_29],
+			opcode: &opcodeArray[OP_DATA_29],
 			data:   make([]byte, 29),
 		},
 		expectedErr: nil,
@@ -1122,7 +1106,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_29 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_29],
+			opcode: &opcodeArray[OP_DATA_29],
 			data:   make([]byte, 30),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1130,7 +1114,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_30 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_30],
+			opcode: &opcodeArray[OP_DATA_30],
 			data:   make([]byte, 29),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1138,7 +1122,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_30",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_30],
+			opcode: &opcodeArray[OP_DATA_30],
 			data:   make([]byte, 30),
 		},
 		expectedErr: nil,
@@ -1146,7 +1130,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_30 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_30],
+			opcode: &opcodeArray[OP_DATA_30],
 			data:   make([]byte, 31),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1154,7 +1138,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_31 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_31],
+			opcode: &opcodeArray[OP_DATA_31],
 			data:   make([]byte, 30),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1162,7 +1146,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_31",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_31],
+			opcode: &opcodeArray[OP_DATA_31],
 			data:   make([]byte, 31),
 		},
 		expectedErr: nil,
@@ -1170,7 +1154,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_31 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_31],
+			opcode: &opcodeArray[OP_DATA_31],
 			data:   make([]byte, 32),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1178,7 +1162,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_32 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_32],
+			opcode: &opcodeArray[OP_DATA_32],
 			data:   make([]byte, 31),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1186,7 +1170,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_32",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_32],
+			opcode: &opcodeArray[OP_DATA_32],
 			data:   make([]byte, 32),
 		},
 		expectedErr: nil,
@@ -1194,7 +1178,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_32 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_32],
+			opcode: &opcodeArray[OP_DATA_32],
 			data:   make([]byte, 33),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1202,7 +1186,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_33 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_33],
+			opcode: &opcodeArray[OP_DATA_33],
 			data:   make([]byte, 32),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1210,7 +1194,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_33",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_33],
+			opcode: &opcodeArray[OP_DATA_33],
 			data:   make([]byte, 33),
 		},
 		expectedErr: nil,
@@ -1218,7 +1202,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_33 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_33],
+			opcode: &opcodeArray[OP_DATA_33],
 			data:   make([]byte, 34),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1226,7 +1210,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_34 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_34],
+			opcode: &opcodeArray[OP_DATA_34],
 			data:   make([]byte, 33),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1234,7 +1218,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_34",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_34],
+			opcode: &opcodeArray[OP_DATA_34],
 			data:   make([]byte, 34),
 		},
 		expectedErr: nil,
@@ -1242,7 +1226,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_34 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_34],
+			opcode: &opcodeArray[OP_DATA_34],
 			data:   make([]byte, 35),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1250,7 +1234,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_35 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_35],
+			opcode: &opcodeArray[OP_DATA_35],
 			data:   make([]byte, 34),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1258,7 +1242,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_35",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_35],
+			opcode: &opcodeArray[OP_DATA_35],
 			data:   make([]byte, 35),
 		},
 		expectedErr: nil,
@@ -1266,7 +1250,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_35 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_35],
+			opcode: &opcodeArray[OP_DATA_35],
 			data:   make([]byte, 36),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1274,7 +1258,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_36 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_36],
+			opcode: &opcodeArray[OP_DATA_36],
 			data:   make([]byte, 35),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1282,7 +1266,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_36",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_36],
+			opcode: &opcodeArray[OP_DATA_36],
 			data:   make([]byte, 36),
 		},
 		expectedErr: nil,
@@ -1290,7 +1274,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_36 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_36],
+			opcode: &opcodeArray[OP_DATA_36],
 			data:   make([]byte, 37),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1298,7 +1282,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_37 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_37],
+			opcode: &opcodeArray[OP_DATA_37],
 			data:   make([]byte, 36),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1306,7 +1290,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_37",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_37],
+			opcode: &opcodeArray[OP_DATA_37],
 			data:   make([]byte, 37),
 		},
 		expectedErr: nil,
@@ -1314,7 +1298,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_37 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_37],
+			opcode: &opcodeArray[OP_DATA_37],
 			data:   make([]byte, 38),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1322,7 +1306,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_38 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_38],
+			opcode: &opcodeArray[OP_DATA_38],
 			data:   make([]byte, 37),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1330,7 +1314,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_38",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_38],
+			opcode: &opcodeArray[OP_DATA_38],
 			data:   make([]byte, 38),
 		},
 		expectedErr: nil,
@@ -1338,7 +1322,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_38 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_38],
+			opcode: &opcodeArray[OP_DATA_38],
 			data:   make([]byte, 39),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1346,7 +1330,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_39 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_39],
+			opcode: &opcodeArray[OP_DATA_39],
 			data:   make([]byte, 38),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1354,7 +1338,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_39",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_39],
+			opcode: &opcodeArray[OP_DATA_39],
 			data:   make([]byte, 39),
 		},
 		expectedErr: nil,
@@ -1362,7 +1346,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_39 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_39],
+			opcode: &opcodeArray[OP_DATA_39],
 			data:   make([]byte, 40),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1370,7 +1354,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_40 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_40],
+			opcode: &opcodeArray[OP_DATA_40],
 			data:   make([]byte, 39),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1378,7 +1362,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_40",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_40],
+			opcode: &opcodeArray[OP_DATA_40],
 			data:   make([]byte, 40),
 		},
 		expectedErr: nil,
@@ -1386,7 +1370,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_40 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_40],
+			opcode: &opcodeArray[OP_DATA_40],
 			data:   make([]byte, 41),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1394,7 +1378,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_41 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_41],
+			opcode: &opcodeArray[OP_DATA_41],
 			data:   make([]byte, 40),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1402,7 +1386,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_41",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_41],
+			opcode: &opcodeArray[OP_DATA_41],
 			data:   make([]byte, 41),
 		},
 		expectedErr: nil,
@@ -1410,7 +1394,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_41 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_41],
+			opcode: &opcodeArray[OP_DATA_41],
 			data:   make([]byte, 42),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1418,7 +1402,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_42 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_42],
+			opcode: &opcodeArray[OP_DATA_42],
 			data:   make([]byte, 41),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1426,7 +1410,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_42",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_42],
+			opcode: &opcodeArray[OP_DATA_42],
 			data:   make([]byte, 42),
 		},
 		expectedErr: nil,
@@ -1434,7 +1418,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_42 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_42],
+			opcode: &opcodeArray[OP_DATA_42],
 			data:   make([]byte, 43),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1442,7 +1426,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_43 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_43],
+			opcode: &opcodeArray[OP_DATA_43],
 			data:   make([]byte, 42),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1450,7 +1434,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_43",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_43],
+			opcode: &opcodeArray[OP_DATA_43],
 			data:   make([]byte, 43),
 		},
 		expectedErr: nil,
@@ -1458,7 +1442,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_43 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_43],
+			opcode: &opcodeArray[OP_DATA_43],
 			data:   make([]byte, 44),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1466,7 +1450,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_44 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_44],
+			opcode: &opcodeArray[OP_DATA_44],
 			data:   make([]byte, 43),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1474,7 +1458,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_44",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_44],
+			opcode: &opcodeArray[OP_DATA_44],
 			data:   make([]byte, 44),
 		},
 		expectedErr: nil,
@@ -1482,7 +1466,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_44 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_44],
+			opcode: &opcodeArray[OP_DATA_44],
 			data:   make([]byte, 45),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1490,7 +1474,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_45 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_45],
+			opcode: &opcodeArray[OP_DATA_45],
 			data:   make([]byte, 44),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1498,7 +1482,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_45",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_45],
+			opcode: &opcodeArray[OP_DATA_45],
 			data:   make([]byte, 45),
 		},
 		expectedErr: nil,
@@ -1506,7 +1490,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_45 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_45],
+			opcode: &opcodeArray[OP_DATA_45],
 			data:   make([]byte, 46),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1514,7 +1498,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_46 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_46],
+			opcode: &opcodeArray[OP_DATA_46],
 			data:   make([]byte, 45),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1522,7 +1506,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_46",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_46],
+			opcode: &opcodeArray[OP_DATA_46],
 			data:   make([]byte, 46),
 		},
 		expectedErr: nil,
@@ -1530,7 +1514,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_46 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_46],
+			opcode: &opcodeArray[OP_DATA_46],
 			data:   make([]byte, 47),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1538,7 +1522,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_47 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_47],
+			opcode: &opcodeArray[OP_DATA_47],
 			data:   make([]byte, 46),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1546,7 +1530,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_47",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_47],
+			opcode: &opcodeArray[OP_DATA_47],
 			data:   make([]byte, 47),
 		},
 		expectedErr: nil,
@@ -1554,7 +1538,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_47 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_47],
+			opcode: &opcodeArray[OP_DATA_47],
 			data:   make([]byte, 48),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1562,7 +1546,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_48 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_48],
+			opcode: &opcodeArray[OP_DATA_48],
 			data:   make([]byte, 47),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1570,7 +1554,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_48",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_48],
+			opcode: &opcodeArray[OP_DATA_48],
 			data:   make([]byte, 48),
 		},
 		expectedErr: nil,
@@ -1578,7 +1562,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_48 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_48],
+			opcode: &opcodeArray[OP_DATA_48],
 			data:   make([]byte, 49),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1586,7 +1570,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_49 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_49],
+			opcode: &opcodeArray[OP_DATA_49],
 			data:   make([]byte, 48),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1594,7 +1578,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_49",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_49],
+			opcode: &opcodeArray[OP_DATA_49],
 			data:   make([]byte, 49),
 		},
 		expectedErr: nil,
@@ -1602,7 +1586,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_49 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_49],
+			opcode: &opcodeArray[OP_DATA_49],
 			data:   make([]byte, 50),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1610,7 +1594,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_50 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_50],
+			opcode: &opcodeArray[OP_DATA_50],
 			data:   make([]byte, 49),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1618,7 +1602,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_50",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_50],
+			opcode: &opcodeArray[OP_DATA_50],
 			data:   make([]byte, 50),
 		},
 		expectedErr: nil,
@@ -1626,7 +1610,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_50 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_50],
+			opcode: &opcodeArray[OP_DATA_50],
 			data:   make([]byte, 51),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1634,7 +1618,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_51 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_51],
+			opcode: &opcodeArray[OP_DATA_51],
 			data:   make([]byte, 50),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1642,7 +1626,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_51",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_51],
+			opcode: &opcodeArray[OP_DATA_51],
 			data:   make([]byte, 51),
 		},
 		expectedErr: nil,
@@ -1650,7 +1634,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_51 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_51],
+			opcode: &opcodeArray[OP_DATA_51],
 			data:   make([]byte, 52),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1658,7 +1642,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_52 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_52],
+			opcode: &opcodeArray[OP_DATA_52],
 			data:   make([]byte, 51),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1666,7 +1650,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_52",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_52],
+			opcode: &opcodeArray[OP_DATA_52],
 			data:   make([]byte, 52),
 		},
 		expectedErr: nil,
@@ -1674,7 +1658,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_52 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_52],
+			opcode: &opcodeArray[OP_DATA_52],
 			data:   make([]byte, 53),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1682,7 +1666,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_53 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_53],
+			opcode: &opcodeArray[OP_DATA_53],
 			data:   make([]byte, 52),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1690,7 +1674,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_53",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_53],
+			opcode: &opcodeArray[OP_DATA_53],
 			data:   make([]byte, 53),
 		},
 		expectedErr: nil,
@@ -1698,7 +1682,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_53 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_53],
+			opcode: &opcodeArray[OP_DATA_53],
 			data:   make([]byte, 54),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1706,7 +1690,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_54 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_54],
+			opcode: &opcodeArray[OP_DATA_54],
 			data:   make([]byte, 53),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1714,7 +1698,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_54",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_54],
+			opcode: &opcodeArray[OP_DATA_54],
 			data:   make([]byte, 54),
 		},
 		expectedErr: nil,
@@ -1722,7 +1706,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_54 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_54],
+			opcode: &opcodeArray[OP_DATA_54],
 			data:   make([]byte, 55),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1730,7 +1714,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_55 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_55],
+			opcode: &opcodeArray[OP_DATA_55],
 			data:   make([]byte, 54),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1738,7 +1722,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_55",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_55],
+			opcode: &opcodeArray[OP_DATA_55],
 			data:   make([]byte, 55),
 		},
 		expectedErr: nil,
@@ -1746,7 +1730,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_55 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_55],
+			opcode: &opcodeArray[OP_DATA_55],
 			data:   make([]byte, 56),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1754,7 +1738,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_56 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_56],
+			opcode: &opcodeArray[OP_DATA_56],
 			data:   make([]byte, 55),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1762,7 +1746,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_56",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_56],
+			opcode: &opcodeArray[OP_DATA_56],
 			data:   make([]byte, 56),
 		},
 		expectedErr: nil,
@@ -1770,7 +1754,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_56 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_56],
+			opcode: &opcodeArray[OP_DATA_56],
 			data:   make([]byte, 57),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1778,7 +1762,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_57 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_57],
+			opcode: &opcodeArray[OP_DATA_57],
 			data:   make([]byte, 56),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1786,7 +1770,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_57",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_57],
+			opcode: &opcodeArray[OP_DATA_57],
 			data:   make([]byte, 57),
 		},
 		expectedErr: nil,
@@ -1794,7 +1778,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_57 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_57],
+			opcode: &opcodeArray[OP_DATA_57],
 			data:   make([]byte, 58),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1802,7 +1786,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_58 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_58],
+			opcode: &opcodeArray[OP_DATA_58],
 			data:   make([]byte, 57),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1810,7 +1794,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_58",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_58],
+			opcode: &opcodeArray[OP_DATA_58],
 			data:   make([]byte, 58),
 		},
 		expectedErr: nil,
@@ -1818,7 +1802,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_58 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_58],
+			opcode: &opcodeArray[OP_DATA_58],
 			data:   make([]byte, 59),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1826,7 +1810,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_59 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_59],
+			opcode: &opcodeArray[OP_DATA_59],
 			data:   make([]byte, 58),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1834,7 +1818,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_59",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_59],
+			opcode: &opcodeArray[OP_DATA_59],
 			data:   make([]byte, 59),
 		},
 		expectedErr: nil,
@@ -1842,7 +1826,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_59 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_59],
+			opcode: &opcodeArray[OP_DATA_59],
 			data:   make([]byte, 60),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1850,7 +1834,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_60 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_60],
+			opcode: &opcodeArray[OP_DATA_60],
 			data:   make([]byte, 59),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1858,7 +1842,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_60",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_60],
+			opcode: &opcodeArray[OP_DATA_60],
 			data:   make([]byte, 60),
 		},
 		expectedErr: nil,
@@ -1866,7 +1850,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_60 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_60],
+			opcode: &opcodeArray[OP_DATA_60],
 			data:   make([]byte, 61),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1874,7 +1858,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_61 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_61],
+			opcode: &opcodeArray[OP_DATA_61],
 			data:   make([]byte, 60),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1882,7 +1866,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_61",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_61],
+			opcode: &opcodeArray[OP_DATA_61],
 			data:   make([]byte, 61),
 		},
 		expectedErr: nil,
@@ -1890,7 +1874,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_61 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_61],
+			opcode: &opcodeArray[OP_DATA_61],
 			data:   make([]byte, 62),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1898,7 +1882,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_62 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_62],
+			opcode: &opcodeArray[OP_DATA_62],
 			data:   make([]byte, 61),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1906,7 +1890,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_62",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_62],
+			opcode: &opcodeArray[OP_DATA_62],
 			data:   make([]byte, 62),
 		},
 		expectedErr: nil,
@@ -1914,7 +1898,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_62 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_62],
+			opcode: &opcodeArray[OP_DATA_62],
 			data:   make([]byte, 63),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1922,7 +1906,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_63 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_63],
+			opcode: &opcodeArray[OP_DATA_63],
 			data:   make([]byte, 62),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1930,7 +1914,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_63",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_63],
+			opcode: &opcodeArray[OP_DATA_63],
 			data:   make([]byte, 63),
 		},
 		expectedErr: nil,
@@ -1938,7 +1922,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_63 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_63],
+			opcode: &opcodeArray[OP_DATA_63],
 			data:   make([]byte, 64),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1946,7 +1930,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_64 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_64],
+			opcode: &opcodeArray[OP_DATA_64],
 			data:   make([]byte, 63),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1954,7 +1938,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_64",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_64],
+			opcode: &opcodeArray[OP_DATA_64],
 			data:   make([]byte, 64),
 		},
 		expectedErr: nil,
@@ -1962,7 +1946,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_64 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_64],
+			opcode: &opcodeArray[OP_DATA_64],
 			data:   make([]byte, 65),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1970,7 +1954,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_65 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_65],
+			opcode: &opcodeArray[OP_DATA_65],
 			data:   make([]byte, 64),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1978,7 +1962,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_65",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_65],
+			opcode: &opcodeArray[OP_DATA_65],
 			data:   make([]byte, 65),
 		},
 		expectedErr: nil,
@@ -1986,7 +1970,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_65 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_65],
+			opcode: &opcodeArray[OP_DATA_65],
 			data:   make([]byte, 66),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -1994,7 +1978,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_66 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_66],
+			opcode: &opcodeArray[OP_DATA_66],
 			data:   make([]byte, 65),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2002,7 +1986,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_66",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_66],
+			opcode: &opcodeArray[OP_DATA_66],
 			data:   make([]byte, 66),
 		},
 		expectedErr: nil,
@@ -2010,7 +1994,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_66 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_66],
+			opcode: &opcodeArray[OP_DATA_66],
 			data:   make([]byte, 67),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2018,7 +2002,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_67 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_67],
+			opcode: &opcodeArray[OP_DATA_67],
 			data:   make([]byte, 66),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2026,7 +2010,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_67",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_67],
+			opcode: &opcodeArray[OP_DATA_67],
 			data:   make([]byte, 67),
 		},
 		expectedErr: nil,
@@ -2034,7 +2018,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_67 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_67],
+			opcode: &opcodeArray[OP_DATA_67],
 			data:   make([]byte, 68),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2042,7 +2026,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_68 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_68],
+			opcode: &opcodeArray[OP_DATA_68],
 			data:   make([]byte, 67),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2050,7 +2034,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_68",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_68],
+			opcode: &opcodeArray[OP_DATA_68],
 			data:   make([]byte, 68),
 		},
 		expectedErr: nil,
@@ -2058,7 +2042,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_68 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_68],
+			opcode: &opcodeArray[OP_DATA_68],
 			data:   make([]byte, 69),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2066,7 +2050,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_69 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_69],
+			opcode: &opcodeArray[OP_DATA_69],
 			data:   make([]byte, 68),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2074,7 +2058,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_69",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_69],
+			opcode: &opcodeArray[OP_DATA_69],
 			data:   make([]byte, 69),
 		},
 		expectedErr: nil,
@@ -2082,7 +2066,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_69 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_69],
+			opcode: &opcodeArray[OP_DATA_69],
 			data:   make([]byte, 70),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2090,7 +2074,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_70 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_70],
+			opcode: &opcodeArray[OP_DATA_70],
 			data:   make([]byte, 69),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2098,7 +2082,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_70",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_70],
+			opcode: &opcodeArray[OP_DATA_70],
 			data:   make([]byte, 70),
 		},
 		expectedErr: nil,
@@ -2106,7 +2090,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_70 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_70],
+			opcode: &opcodeArray[OP_DATA_70],
 			data:   make([]byte, 71),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2114,7 +2098,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_71 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_71],
+			opcode: &opcodeArray[OP_DATA_71],
 			data:   make([]byte, 70),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2122,7 +2106,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_71",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_71],
+			opcode: &opcodeArray[OP_DATA_71],
 			data:   make([]byte, 71),
 		},
 		expectedErr: nil,
@@ -2130,7 +2114,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_71 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_71],
+			opcode: &opcodeArray[OP_DATA_71],
 			data:   make([]byte, 72),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2138,7 +2122,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_72 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_72],
+			opcode: &opcodeArray[OP_DATA_72],
 			data:   make([]byte, 71),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2146,7 +2130,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_72",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_72],
+			opcode: &opcodeArray[OP_DATA_72],
 			data:   make([]byte, 72),
 		},
 		expectedErr: nil,
@@ -2154,7 +2138,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_72 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_72],
+			opcode: &opcodeArray[OP_DATA_72],
 			data:   make([]byte, 73),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2162,7 +2146,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_73 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_73],
+			opcode: &opcodeArray[OP_DATA_73],
 			data:   make([]byte, 72),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2170,7 +2154,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_73",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_73],
+			opcode: &opcodeArray[OP_DATA_73],
 			data:   make([]byte, 73),
 		},
 		expectedErr: nil,
@@ -2178,7 +2162,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_73 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_73],
+			opcode: &opcodeArray[OP_DATA_73],
 			data:   make([]byte, 74),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2186,7 +2170,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_74 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_74],
+			opcode: &opcodeArray[OP_DATA_74],
 			data:   make([]byte, 73),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2194,7 +2178,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_74",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_74],
+			opcode: &opcodeArray[OP_DATA_74],
 			data:   make([]byte, 74),
 		},
 		expectedErr: nil,
@@ -2202,7 +2186,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_74 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_74],
+			opcode: &opcodeArray[OP_DATA_74],
 			data:   make([]byte, 75),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2210,7 +2194,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_75 short",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_75],
+			opcode: &opcodeArray[OP_DATA_75],
 			data:   make([]byte, 74),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2218,7 +2202,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_75",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_75],
+			opcode: &opcodeArray[OP_DATA_75],
 			data:   make([]byte, 75),
 		},
 		expectedErr: nil,
@@ -2226,7 +2210,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DATA_75 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DATA_75],
+			opcode: &opcodeArray[OP_DATA_75],
 			data:   make([]byte, 76),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2234,7 +2218,7 @@ var popTests = []popTest{
 	{
 		name: "OP_PUSHDATA1",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_PUSHDATA1],
+			opcode: &opcodeArray[OP_PUSHDATA1],
 			data:   []byte{0, 1, 2, 3, 4},
 		},
 		expectedErr: nil,
@@ -2242,7 +2226,7 @@ var popTests = []popTest{
 	{
 		name: "OP_PUSHDATA2",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_PUSHDATA2],
+			opcode: &opcodeArray[OP_PUSHDATA2],
 			data:   []byte{0, 1, 2, 3, 4},
 		},
 		expectedErr: nil,
@@ -2250,7 +2234,7 @@ var popTests = []popTest{
 	{
 		name: "OP_PUSHDATA4",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_PUSHDATA1],
+			opcode: &opcodeArray[OP_PUSHDATA1],
 			data:   []byte{0, 1, 2, 3, 4},
 		},
 		expectedErr: nil,
@@ -2258,7 +2242,7 @@ var popTests = []popTest{
 	{
 		name: "OP_1NEGATE",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_1NEGATE],
+			opcode: &opcodeArray[OP_1NEGATE],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2266,7 +2250,7 @@ var popTests = []popTest{
 	{
 		name: "OP_1NEGATE long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_1NEGATE],
+			opcode: &opcodeArray[OP_1NEGATE],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2274,7 +2258,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RESERVED",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RESERVED],
+			opcode: &opcodeArray[OP_RESERVED],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2282,7 +2266,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RESERVED long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RESERVED],
+			opcode: &opcodeArray[OP_RESERVED],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2290,7 +2274,7 @@ var popTests = []popTest{
 	{
 		name: "OP_TRUE",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_TRUE],
+			opcode: &opcodeArray[OP_TRUE],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2298,7 +2282,7 @@ var popTests = []popTest{
 	{
 		name: "OP_TRUE long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_TRUE],
+			opcode: &opcodeArray[OP_TRUE],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2306,7 +2290,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2],
+			opcode: &opcodeArray[OP_2],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2314,7 +2298,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2],
+			opcode: &opcodeArray[OP_2],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2322,7 +2306,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2],
+			opcode: &opcodeArray[OP_2],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2330,7 +2314,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2],
+			opcode: &opcodeArray[OP_2],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2338,7 +2322,7 @@ var popTests = []popTest{
 	{
 		name: "OP_3",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_3],
+			opcode: &opcodeArray[OP_3],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2346,7 +2330,7 @@ var popTests = []popTest{
 	{
 		name: "OP_3 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_3],
+			opcode: &opcodeArray[OP_3],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2354,7 +2338,7 @@ var popTests = []popTest{
 	{
 		name: "OP_4",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_4],
+			opcode: &opcodeArray[OP_4],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2362,7 +2346,7 @@ var popTests = []popTest{
 	{
 		name: "OP_4 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_4],
+			opcode: &opcodeArray[OP_4],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2370,7 +2354,7 @@ var popTests = []popTest{
 	{
 		name: "OP_5",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_5],
+			opcode: &opcodeArray[OP_5],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2378,7 +2362,7 @@ var popTests = []popTest{
 	{
 		name: "OP_5 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_5],
+			opcode: &opcodeArray[OP_5],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2386,7 +2370,7 @@ var popTests = []popTest{
 	{
 		name: "OP_6",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_6],
+			opcode: &opcodeArray[OP_6],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2394,7 +2378,7 @@ var popTests = []popTest{
 	{
 		name: "OP_6 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_6],
+			opcode: &opcodeArray[OP_6],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2402,7 +2386,7 @@ var popTests = []popTest{
 	{
 		name: "OP_7",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_7],
+			opcode: &opcodeArray[OP_7],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2410,7 +2394,7 @@ var popTests = []popTest{
 	{
 		name: "OP_7 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_7],
+			opcode: &opcodeArray[OP_7],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2418,7 +2402,7 @@ var popTests = []popTest{
 	{
 		name: "OP_8",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_8],
+			opcode: &opcodeArray[OP_8],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2426,7 +2410,7 @@ var popTests = []popTest{
 	{
 		name: "OP_8 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_8],
+			opcode: &opcodeArray[OP_8],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2434,7 +2418,7 @@ var popTests = []popTest{
 	{
 		name: "OP_9",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_9],
+			opcode: &opcodeArray[OP_9],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2442,7 +2426,7 @@ var popTests = []popTest{
 	{
 		name: "OP_9 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_9],
+			opcode: &opcodeArray[OP_9],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2450,7 +2434,7 @@ var popTests = []popTest{
 	{
 		name: "OP_10",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_10],
+			opcode: &opcodeArray[OP_10],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2458,7 +2442,7 @@ var popTests = []popTest{
 	{
 		name: "OP_10 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_10],
+			opcode: &opcodeArray[OP_10],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2466,7 +2450,7 @@ var popTests = []popTest{
 	{
 		name: "OP_11",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_11],
+			opcode: &opcodeArray[OP_11],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2474,7 +2458,7 @@ var popTests = []popTest{
 	{
 		name: "OP_11 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_11],
+			opcode: &opcodeArray[OP_11],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2482,7 +2466,7 @@ var popTests = []popTest{
 	{
 		name: "OP_12",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_12],
+			opcode: &opcodeArray[OP_12],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2490,7 +2474,7 @@ var popTests = []popTest{
 	{
 		name: "OP_12 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_12],
+			opcode: &opcodeArray[OP_12],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2498,7 +2482,7 @@ var popTests = []popTest{
 	{
 		name: "OP_13",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_13],
+			opcode: &opcodeArray[OP_13],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2506,7 +2490,7 @@ var popTests = []popTest{
 	{
 		name: "OP_13 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_13],
+			opcode: &opcodeArray[OP_13],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2514,7 +2498,7 @@ var popTests = []popTest{
 	{
 		name: "OP_14",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_14],
+			opcode: &opcodeArray[OP_14],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2522,7 +2506,7 @@ var popTests = []popTest{
 	{
 		name: "OP_14 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_14],
+			opcode: &opcodeArray[OP_14],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2530,7 +2514,7 @@ var popTests = []popTest{
 	{
 		name: "OP_15",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_15],
+			opcode: &opcodeArray[OP_15],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2538,7 +2522,7 @@ var popTests = []popTest{
 	{
 		name: "OP_15 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_15],
+			opcode: &opcodeArray[OP_15],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2546,7 +2530,7 @@ var popTests = []popTest{
 	{
 		name: "OP_16",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_16],
+			opcode: &opcodeArray[OP_16],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2554,7 +2538,7 @@ var popTests = []popTest{
 	{
 		name: "OP_16 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_16],
+			opcode: &opcodeArray[OP_16],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2562,7 +2546,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP],
+			opcode: &opcodeArray[OP_NOP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2570,7 +2554,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP],
+			opcode: &opcodeArray[OP_NOP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2578,7 +2562,7 @@ var popTests = []popTest{
 	{
 		name: "OP_VER",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_VER],
+			opcode: &opcodeArray[OP_VER],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2586,7 +2570,7 @@ var popTests = []popTest{
 	{
 		name: "OP_VER long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_VER],
+			opcode: &opcodeArray[OP_VER],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2594,7 +2578,7 @@ var popTests = []popTest{
 	{
 		name: "OP_IF",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_IF],
+			opcode: &opcodeArray[OP_IF],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2602,7 +2586,7 @@ var popTests = []popTest{
 	{
 		name: "OP_IF long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_IF],
+			opcode: &opcodeArray[OP_IF],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2610,7 +2594,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOTIF",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOTIF],
+			opcode: &opcodeArray[OP_NOTIF],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2618,7 +2602,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOTIF long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOTIF],
+			opcode: &opcodeArray[OP_NOTIF],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2626,7 +2610,7 @@ var popTests = []popTest{
 	{
 		name: "OP_VERIF",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_VERIF],
+			opcode: &opcodeArray[OP_VERIF],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2634,7 +2618,7 @@ var popTests = []popTest{
 	{
 		name: "OP_VERIF long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_VERIF],
+			opcode: &opcodeArray[OP_VERIF],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2642,7 +2626,7 @@ var popTests = []popTest{
 	{
 		name: "OP_VERNOTIF",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_VERNOTIF],
+			opcode: &opcodeArray[OP_VERNOTIF],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2650,7 +2634,7 @@ var popTests = []popTest{
 	{
 		name: "OP_VERNOTIF long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_VERNOTIF],
+			opcode: &opcodeArray[OP_VERNOTIF],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2658,7 +2642,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ELSE",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ELSE],
+			opcode: &opcodeArray[OP_ELSE],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2666,7 +2650,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ELSE long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ELSE],
+			opcode: &opcodeArray[OP_ELSE],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2674,7 +2658,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ENDIF",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ENDIF],
+			opcode: &opcodeArray[OP_ENDIF],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2682,7 +2666,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ENDIF long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ENDIF],
+			opcode: &opcodeArray[OP_ENDIF],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2690,7 +2674,7 @@ var popTests = []popTest{
 	{
 		name: "OP_VERIFY",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_VERIFY],
+			opcode: &opcodeArray[OP_VERIFY],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2698,7 +2682,7 @@ var popTests = []popTest{
 	{
 		name: "OP_VERIFY long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_VERIFY],
+			opcode: &opcodeArray[OP_VERIFY],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2706,7 +2690,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RETURN",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RETURN],
+			opcode: &opcodeArray[OP_RETURN],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2714,7 +2698,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RETURN long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RETURN],
+			opcode: &opcodeArray[OP_RETURN],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2722,7 +2706,7 @@ var popTests = []popTest{
 	{
 		name: "OP_TOALTSTACK",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_TOALTSTACK],
+			opcode: &opcodeArray[OP_TOALTSTACK],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2730,7 +2714,7 @@ var popTests = []popTest{
 	{
 		name: "OP_TOALTSTACK long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_TOALTSTACK],
+			opcode: &opcodeArray[OP_TOALTSTACK],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2738,7 +2722,7 @@ var popTests = []popTest{
 	{
 		name: "OP_FROMALTSTACK",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_FROMALTSTACK],
+			opcode: &opcodeArray[OP_FROMALTSTACK],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2746,7 +2730,7 @@ var popTests = []popTest{
 	{
 		name: "OP_FROMALTSTACK long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_FROMALTSTACK],
+			opcode: &opcodeArray[OP_FROMALTSTACK],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2754,7 +2738,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2DROP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2DROP],
+			opcode: &opcodeArray[OP_2DROP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2762,7 +2746,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2DROP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2DROP],
+			opcode: &opcodeArray[OP_2DROP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2770,7 +2754,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2DUP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2DUP],
+			opcode: &opcodeArray[OP_2DUP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2778,7 +2762,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2DUP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2DUP],
+			opcode: &opcodeArray[OP_2DUP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2786,7 +2770,7 @@ var popTests = []popTest{
 	{
 		name: "OP_3DUP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_3DUP],
+			opcode: &opcodeArray[OP_3DUP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2794,7 +2778,7 @@ var popTests = []popTest{
 	{
 		name: "OP_3DUP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_3DUP],
+			opcode: &opcodeArray[OP_3DUP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2802,7 +2786,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2OVER",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2OVER],
+			opcode: &opcodeArray[OP_2OVER],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2810,7 +2794,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2OVER long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2OVER],
+			opcode: &opcodeArray[OP_2OVER],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2818,7 +2802,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2ROT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2ROT],
+			opcode: &opcodeArray[OP_2ROT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2826,7 +2810,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2ROT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2ROT],
+			opcode: &opcodeArray[OP_2ROT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2834,7 +2818,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2SWAP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2SWAP],
+			opcode: &opcodeArray[OP_2SWAP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2842,7 +2826,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2SWAP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2SWAP],
+			opcode: &opcodeArray[OP_2SWAP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2850,7 +2834,7 @@ var popTests = []popTest{
 	{
 		name: "OP_IFDUP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_IFDUP],
+			opcode: &opcodeArray[OP_IFDUP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2858,7 +2842,7 @@ var popTests = []popTest{
 	{
 		name: "OP_IFDUP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_IFDUP],
+			opcode: &opcodeArray[OP_IFDUP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2866,7 +2850,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DEPTH",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DEPTH],
+			opcode: &opcodeArray[OP_DEPTH],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2874,7 +2858,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DEPTH long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DEPTH],
+			opcode: &opcodeArray[OP_DEPTH],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2882,7 +2866,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DROP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DROP],
+			opcode: &opcodeArray[OP_DROP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2890,7 +2874,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DROP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DROP],
+			opcode: &opcodeArray[OP_DROP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2898,7 +2882,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DUP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DUP],
+			opcode: &opcodeArray[OP_DUP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2906,7 +2890,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DUP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DUP],
+			opcode: &opcodeArray[OP_DUP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2914,7 +2898,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NIP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NIP],
+			opcode: &opcodeArray[OP_NIP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2922,7 +2906,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NIP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NIP],
+			opcode: &opcodeArray[OP_NIP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2930,7 +2914,7 @@ var popTests = []popTest{
 	{
 		name: "OP_OVER",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_OVER],
+			opcode: &opcodeArray[OP_OVER],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2938,7 +2922,7 @@ var popTests = []popTest{
 	{
 		name: "OP_OVER long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_OVER],
+			opcode: &opcodeArray[OP_OVER],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2946,7 +2930,7 @@ var popTests = []popTest{
 	{
 		name: "OP_PICK",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_PICK],
+			opcode: &opcodeArray[OP_PICK],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2954,7 +2938,7 @@ var popTests = []popTest{
 	{
 		name: "OP_PICK long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_PICK],
+			opcode: &opcodeArray[OP_PICK],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2962,7 +2946,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ROLL",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ROLL],
+			opcode: &opcodeArray[OP_ROLL],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2970,7 +2954,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ROLL long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ROLL],
+			opcode: &opcodeArray[OP_ROLL],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2978,7 +2962,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ROT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ROT],
+			opcode: &opcodeArray[OP_ROT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -2986,7 +2970,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ROT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ROT],
+			opcode: &opcodeArray[OP_ROT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -2994,7 +2978,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SWAP",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SWAP],
+			opcode: &opcodeArray[OP_SWAP],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3002,7 +2986,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SWAP long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SWAP],
+			opcode: &opcodeArray[OP_SWAP],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3010,7 +2994,7 @@ var popTests = []popTest{
 	{
 		name: "OP_TUCK",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_TUCK],
+			opcode: &opcodeArray[OP_TUCK],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3018,7 +3002,7 @@ var popTests = []popTest{
 	{
 		name: "OP_TUCK long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_TUCK],
+			opcode: &opcodeArray[OP_TUCK],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3026,7 +3010,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CAT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CAT],
+			opcode: &opcodeArray[OP_CAT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3034,7 +3018,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CAT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CAT],
+			opcode: &opcodeArray[OP_CAT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3042,7 +3026,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SUBSTR",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SUBSTR],
+			opcode: &opcodeArray[OP_SUBSTR],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3050,7 +3034,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SUBSTR long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SUBSTR],
+			opcode: &opcodeArray[OP_SUBSTR],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3058,7 +3042,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LEFT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LEFT],
+			opcode: &opcodeArray[OP_LEFT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3066,7 +3050,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LEFT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LEFT],
+			opcode: &opcodeArray[OP_LEFT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3074,7 +3058,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LEFT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LEFT],
+			opcode: &opcodeArray[OP_LEFT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3082,7 +3066,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LEFT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LEFT],
+			opcode: &opcodeArray[OP_LEFT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3090,7 +3074,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RIGHT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RIGHT],
+			opcode: &opcodeArray[OP_RIGHT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3098,7 +3082,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RIGHT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RIGHT],
+			opcode: &opcodeArray[OP_RIGHT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3106,7 +3090,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SIZE",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SIZE],
+			opcode: &opcodeArray[OP_SIZE],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3114,7 +3098,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SIZE long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SIZE],
+			opcode: &opcodeArray[OP_SIZE],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3122,7 +3106,7 @@ var popTests = []popTest{
 	{
 		name: "OP_INVERT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_INVERT],
+			opcode: &opcodeArray[OP_INVERT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3130,7 +3114,7 @@ var popTests = []popTest{
 	{
 		name: "OP_INVERT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_INVERT],
+			opcode: &opcodeArray[OP_INVERT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3138,7 +3122,7 @@ var popTests = []popTest{
 	{
 		name: "OP_AND",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_AND],
+			opcode: &opcodeArray[OP_AND],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3146,7 +3130,7 @@ var popTests = []popTest{
 	{
 		name: "OP_AND long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_AND],
+			opcode: &opcodeArray[OP_AND],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3154,7 +3138,7 @@ var popTests = []popTest{
 	{
 		name: "OP_OR",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_OR],
+			opcode: &opcodeArray[OP_OR],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3162,7 +3146,7 @@ var popTests = []popTest{
 	{
 		name: "OP_OR long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_OR],
+			opcode: &opcodeArray[OP_OR],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3170,7 +3154,7 @@ var popTests = []popTest{
 	{
 		name: "OP_XOR",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_XOR],
+			opcode: &opcodeArray[OP_XOR],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3178,7 +3162,7 @@ var popTests = []popTest{
 	{
 		name: "OP_XOR long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_XOR],
+			opcode: &opcodeArray[OP_XOR],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3186,7 +3170,7 @@ var popTests = []popTest{
 	{
 		name: "OP_EQUAL",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_EQUAL],
+			opcode: &opcodeArray[OP_EQUAL],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3194,7 +3178,7 @@ var popTests = []popTest{
 	{
 		name: "OP_EQUAL long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_EQUAL],
+			opcode: &opcodeArray[OP_EQUAL],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3202,7 +3186,7 @@ var popTests = []popTest{
 	{
 		name: "OP_EQUALVERIFY",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_EQUALVERIFY],
+			opcode: &opcodeArray[OP_EQUALVERIFY],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3210,7 +3194,7 @@ var popTests = []popTest{
 	{
 		name: "OP_EQUALVERIFY long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_EQUALVERIFY],
+			opcode: &opcodeArray[OP_EQUALVERIFY],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3218,7 +3202,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RESERVED1",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RESERVED1],
+			opcode: &opcodeArray[OP_RESERVED1],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3226,7 +3210,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RESERVED1 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RESERVED1],
+			opcode: &opcodeArray[OP_RESERVED1],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3234,7 +3218,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RESERVED2",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RESERVED2],
+			opcode: &opcodeArray[OP_RESERVED2],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3242,7 +3226,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RESERVED2 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RESERVED2],
+			opcode: &opcodeArray[OP_RESERVED2],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3250,7 +3234,7 @@ var popTests = []popTest{
 	{
 		name: "OP_1ADD",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_1ADD],
+			opcode: &opcodeArray[OP_1ADD],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3258,7 +3242,7 @@ var popTests = []popTest{
 	{
 		name: "OP_1ADD long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_1ADD],
+			opcode: &opcodeArray[OP_1ADD],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3266,7 +3250,7 @@ var popTests = []popTest{
 	{
 		name: "OP_1SUB",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_1SUB],
+			opcode: &opcodeArray[OP_1SUB],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3274,7 +3258,7 @@ var popTests = []popTest{
 	{
 		name: "OP_1SUB long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_1SUB],
+			opcode: &opcodeArray[OP_1SUB],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3282,7 +3266,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2MUL",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2MUL],
+			opcode: &opcodeArray[OP_2MUL],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3290,7 +3274,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2MUL long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2MUL],
+			opcode: &opcodeArray[OP_2MUL],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3298,7 +3282,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2DIV",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2DIV],
+			opcode: &opcodeArray[OP_2DIV],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3306,7 +3290,7 @@ var popTests = []popTest{
 	{
 		name: "OP_2DIV long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_2DIV],
+			opcode: &opcodeArray[OP_2DIV],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3314,7 +3298,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NEGATE",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NEGATE],
+			opcode: &opcodeArray[OP_NEGATE],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3322,7 +3306,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NEGATE long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NEGATE],
+			opcode: &opcodeArray[OP_NEGATE],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3330,7 +3314,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ABS",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ABS],
+			opcode: &opcodeArray[OP_ABS],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3338,7 +3322,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ABS long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ABS],
+			opcode: &opcodeArray[OP_ABS],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3346,7 +3330,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOT],
+			opcode: &opcodeArray[OP_NOT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3354,7 +3338,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOT],
+			opcode: &opcodeArray[OP_NOT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3362,7 +3346,7 @@ var popTests = []popTest{
 	{
 		name: "OP_0NOTEQUAL",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_0NOTEQUAL],
+			opcode: &opcodeArray[OP_0NOTEQUAL],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3370,7 +3354,7 @@ var popTests = []popTest{
 	{
 		name: "OP_0NOTEQUAL long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_0NOTEQUAL],
+			opcode: &opcodeArray[OP_0NOTEQUAL],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3378,7 +3362,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ADD",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ADD],
+			opcode: &opcodeArray[OP_ADD],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3386,7 +3370,7 @@ var popTests = []popTest{
 	{
 		name: "OP_ADD long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_ADD],
+			opcode: &opcodeArray[OP_ADD],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3394,7 +3378,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SUB",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SUB],
+			opcode: &opcodeArray[OP_SUB],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3402,7 +3386,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SUB long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SUB],
+			opcode: &opcodeArray[OP_SUB],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3410,7 +3394,7 @@ var popTests = []popTest{
 	{
 		name: "OP_MUL",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_MUL],
+			opcode: &opcodeArray[OP_MUL],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3418,7 +3402,7 @@ var popTests = []popTest{
 	{
 		name: "OP_MUL long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_MUL],
+			opcode: &opcodeArray[OP_MUL],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3426,7 +3410,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DIV",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DIV],
+			opcode: &opcodeArray[OP_DIV],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3434,7 +3418,7 @@ var popTests = []popTest{
 	{
 		name: "OP_DIV long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_DIV],
+			opcode: &opcodeArray[OP_DIV],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3442,7 +3426,7 @@ var popTests = []popTest{
 	{
 		name: "OP_MOD",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_MOD],
+			opcode: &opcodeArray[OP_MOD],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3450,7 +3434,7 @@ var popTests = []popTest{
 	{
 		name: "OP_MOD long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_MOD],
+			opcode: &opcodeArray[OP_MOD],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3458,7 +3442,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LSHIFT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LSHIFT],
+			opcode: &opcodeArray[OP_LSHIFT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3466,7 +3450,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LSHIFT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LSHIFT],
+			opcode: &opcodeArray[OP_LSHIFT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3474,7 +3458,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RSHIFT",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RSHIFT],
+			opcode: &opcodeArray[OP_RSHIFT],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3482,7 +3466,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RSHIFT long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RSHIFT],
+			opcode: &opcodeArray[OP_RSHIFT],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3490,7 +3474,7 @@ var popTests = []popTest{
 	{
 		name: "OP_BOOLAND",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_BOOLAND],
+			opcode: &opcodeArray[OP_BOOLAND],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3498,7 +3482,7 @@ var popTests = []popTest{
 	{
 		name: "OP_BOOLAND long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_BOOLAND],
+			opcode: &opcodeArray[OP_BOOLAND],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3506,7 +3490,7 @@ var popTests = []popTest{
 	{
 		name: "OP_BOOLOR",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_BOOLOR],
+			opcode: &opcodeArray[OP_BOOLOR],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3514,7 +3498,7 @@ var popTests = []popTest{
 	{
 		name: "OP_BOOLOR long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_BOOLOR],
+			opcode: &opcodeArray[OP_BOOLOR],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3522,7 +3506,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NUMEQUAL",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NUMEQUAL],
+			opcode: &opcodeArray[OP_NUMEQUAL],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3530,7 +3514,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NUMEQUAL long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NUMEQUAL],
+			opcode: &opcodeArray[OP_NUMEQUAL],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3538,7 +3522,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NUMEQUALVERIFY",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NUMEQUALVERIFY],
+			opcode: &opcodeArray[OP_NUMEQUALVERIFY],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3546,7 +3530,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NUMEQUALVERIFY long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NUMEQUALVERIFY],
+			opcode: &opcodeArray[OP_NUMEQUALVERIFY],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3554,7 +3538,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NUMNOTEQUAL",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NUMNOTEQUAL],
+			opcode: &opcodeArray[OP_NUMNOTEQUAL],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3562,7 +3546,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NUMNOTEQUAL long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NUMNOTEQUAL],
+			opcode: &opcodeArray[OP_NUMNOTEQUAL],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3570,7 +3554,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LESSTHAN",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LESSTHAN],
+			opcode: &opcodeArray[OP_LESSTHAN],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3578,7 +3562,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LESSTHAN long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LESSTHAN],
+			opcode: &opcodeArray[OP_LESSTHAN],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3586,7 +3570,7 @@ var popTests = []popTest{
 	{
 		name: "OP_GREATERTHAN",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_GREATERTHAN],
+			opcode: &opcodeArray[OP_GREATERTHAN],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3594,7 +3578,7 @@ var popTests = []popTest{
 	{
 		name: "OP_GREATERTHAN long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_GREATERTHAN],
+			opcode: &opcodeArray[OP_GREATERTHAN],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3602,7 +3586,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LESSTHANOREQUAL",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LESSTHANOREQUAL],
+			opcode: &opcodeArray[OP_LESSTHANOREQUAL],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3610,7 +3594,7 @@ var popTests = []popTest{
 	{
 		name: "OP_LESSTHANOREQUAL long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_LESSTHANOREQUAL],
+			opcode: &opcodeArray[OP_LESSTHANOREQUAL],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3618,7 +3602,7 @@ var popTests = []popTest{
 	{
 		name: "OP_GREATERTHANOREQUAL",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_GREATERTHANOREQUAL],
+			opcode: &opcodeArray[OP_GREATERTHANOREQUAL],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3626,7 +3610,7 @@ var popTests = []popTest{
 	{
 		name: "OP_GREATERTHANOREQUAL long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_GREATERTHANOREQUAL],
+			opcode: &opcodeArray[OP_GREATERTHANOREQUAL],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3634,7 +3618,7 @@ var popTests = []popTest{
 	{
 		name: "OP_MIN",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_MIN],
+			opcode: &opcodeArray[OP_MIN],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3642,7 +3626,7 @@ var popTests = []popTest{
 	{
 		name: "OP_MIN long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_MIN],
+			opcode: &opcodeArray[OP_MIN],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3650,7 +3634,7 @@ var popTests = []popTest{
 	{
 		name: "OP_MAX",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_MAX],
+			opcode: &opcodeArray[OP_MAX],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3658,7 +3642,7 @@ var popTests = []popTest{
 	{
 		name: "OP_MAX long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_MAX],
+			opcode: &opcodeArray[OP_MAX],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3666,7 +3650,7 @@ var popTests = []popTest{
 	{
 		name: "OP_WITHIN",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_WITHIN],
+			opcode: &opcodeArray[OP_WITHIN],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3674,7 +3658,7 @@ var popTests = []popTest{
 	{
 		name: "OP_WITHIN long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_WITHIN],
+			opcode: &opcodeArray[OP_WITHIN],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3682,7 +3666,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RIPEMD160",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RIPEMD160],
+			opcode: &opcodeArray[OP_RIPEMD160],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3690,7 +3674,7 @@ var popTests = []popTest{
 	{
 		name: "OP_RIPEMD160 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_RIPEMD160],
+			opcode: &opcodeArray[OP_RIPEMD160],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3698,7 +3682,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SHA1",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SHA1],
+			opcode: &opcodeArray[OP_SHA1],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3706,7 +3690,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SHA1 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SHA1],
+			opcode: &opcodeArray[OP_SHA1],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3714,7 +3698,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SHA256",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SHA256],
+			opcode: &opcodeArray[OP_SHA256],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3722,7 +3706,7 @@ var popTests = []popTest{
 	{
 		name: "OP_SHA256 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_SHA256],
+			opcode: &opcodeArray[OP_SHA256],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3730,7 +3714,7 @@ var popTests = []popTest{
 	{
 		name: "OP_HASH160",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_HASH160],
+			opcode: &opcodeArray[OP_HASH160],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3738,7 +3722,7 @@ var popTests = []popTest{
 	{
 		name: "OP_HASH160 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_HASH160],
+			opcode: &opcodeArray[OP_HASH160],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3746,7 +3730,7 @@ var popTests = []popTest{
 	{
 		name: "OP_HASH256",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_HASH256],
+			opcode: &opcodeArray[OP_HASH256],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3754,7 +3738,7 @@ var popTests = []popTest{
 	{
 		name: "OP_HASH256 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_HASH256],
+			opcode: &opcodeArray[OP_HASH256],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3762,7 +3746,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CODESAPERATOR",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CODESEPARATOR],
+			opcode: &opcodeArray[OP_CODESEPARATOR],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3770,7 +3754,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CODESEPARATOR long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CODESEPARATOR],
+			opcode: &opcodeArray[OP_CODESEPARATOR],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3778,7 +3762,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CHECKSIG",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CHECKSIG],
+			opcode: &opcodeArray[OP_CHECKSIG],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3786,7 +3770,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CHECKSIG long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CHECKSIG],
+			opcode: &opcodeArray[OP_CHECKSIG],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3794,7 +3778,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CHECKSIGVERIFY",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CHECKSIGVERIFY],
+			opcode: &opcodeArray[OP_CHECKSIGVERIFY],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3802,7 +3786,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CHECKSIGVERIFY long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CHECKSIGVERIFY],
+			opcode: &opcodeArray[OP_CHECKSIGVERIFY],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3810,7 +3794,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CHECKMULTISIG",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CHECKMULTISIG],
+			opcode: &opcodeArray[OP_CHECKMULTISIG],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3818,7 +3802,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CHECKMULTISIG long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CHECKMULTISIG],
+			opcode: &opcodeArray[OP_CHECKMULTISIG],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3826,7 +3810,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CHECKMULTISIGVERIFY",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CHECKMULTISIGVERIFY],
+			opcode: &opcodeArray[OP_CHECKMULTISIGVERIFY],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3834,7 +3818,7 @@ var popTests = []popTest{
 	{
 		name: "OP_CHECKMULTISIGVERIFY long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_CHECKMULTISIGVERIFY],
+			opcode: &opcodeArray[OP_CHECKMULTISIGVERIFY],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3842,7 +3826,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP1",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP1],
+			opcode: &opcodeArray[OP_NOP1],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3850,7 +3834,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP1 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP1],
+			opcode: &opcodeArray[OP_NOP1],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3858,7 +3842,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP2",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP2],
+			opcode: &opcodeArray[OP_NOP2],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3866,7 +3850,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP2 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP2],
+			opcode: &opcodeArray[OP_NOP2],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3874,7 +3858,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP3",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP3],
+			opcode: &opcodeArray[OP_NOP3],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3882,7 +3866,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP3 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP3],
+			opcode: &opcodeArray[OP_NOP3],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3890,7 +3874,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP4",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP4],
+			opcode: &opcodeArray[OP_NOP4],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3898,7 +3882,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP4 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP4],
+			opcode: &opcodeArray[OP_NOP4],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3906,7 +3890,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP5",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP5],
+			opcode: &opcodeArray[OP_NOP5],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3914,7 +3898,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP5 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP5],
+			opcode: &opcodeArray[OP_NOP5],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3922,7 +3906,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP6",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP6],
+			opcode: &opcodeArray[OP_NOP6],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3930,7 +3914,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP6 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP6],
+			opcode: &opcodeArray[OP_NOP6],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3938,7 +3922,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP7",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP7],
+			opcode: &opcodeArray[OP_NOP7],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3946,7 +3930,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP7 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP7],
+			opcode: &opcodeArray[OP_NOP7],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3954,7 +3938,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP8",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP8],
+			opcode: &opcodeArray[OP_NOP8],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3962,7 +3946,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP8 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP8],
+			opcode: &opcodeArray[OP_NOP8],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3970,7 +3954,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP9",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP9],
+			opcode: &opcodeArray[OP_NOP9],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3978,7 +3962,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP9 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP9],
+			opcode: &opcodeArray[OP_NOP9],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -3986,7 +3970,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP10",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP10],
+			opcode: &opcodeArray[OP_NOP10],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -3994,7 +3978,7 @@ var popTests = []popTest{
 	{
 		name: "OP_NOP10 long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_NOP10],
+			opcode: &opcodeArray[OP_NOP10],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -4002,7 +3986,7 @@ var popTests = []popTest{
 	{
 		name: "OP_PUBKEYHASH",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_PUBKEYHASH],
+			opcode: &opcodeArray[OP_PUBKEYHASH],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -4010,7 +3994,7 @@ var popTests = []popTest{
 	{
 		name: "OP_PUBKEYHASH long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_PUBKEYHASH],
+			opcode: &opcodeArray[OP_PUBKEYHASH],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -4018,7 +4002,7 @@ var popTests = []popTest{
 	{
 		name: "OP_PUBKEY",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_PUBKEY],
+			opcode: &opcodeArray[OP_PUBKEY],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -4026,7 +4010,7 @@ var popTests = []popTest{
 	{
 		name: "OP_PUBKEY long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_PUBKEY],
+			opcode: &opcodeArray[OP_PUBKEY],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
@@ -4034,7 +4018,7 @@ var popTests = []popTest{
 	{
 		name: "OP_INVALIDOPCODE",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_INVALIDOPCODE],
+			opcode: &opcodeArray[OP_INVALIDOPCODE],
 			data:   nil,
 		},
 		expectedErr: nil,
@@ -4042,7 +4026,7 @@ var popTests = []popTest{
 	{
 		name: "OP_INVALIDOPCODE long",
 		pop: &parsedOpcode{
-			opcode: opcodemapPreinit[OP_INVALIDOPCODE],
+			opcode: &opcodeArray[OP_INVALIDOPCODE],
 			data:   make([]byte, 1),
 		},
 		expectedErr: ErrStackInvalidOpcode,
diff --git a/txscript/opcode.go b/txscript/opcode.go
index bfc040ca7..8ad42ae03 100644
--- a/txscript/opcode.go
+++ b/txscript/opcode.go
@@ -24,11 +24,10 @@ import (
 // the script. The current script is passed in as a slice with the firs
 // member being the opcode itself.
 type opcode struct {
-	value     byte
-	name      string
-	length    int
-	opfunc    func(*parsedOpcode, *Engine) error
-	parsefunc func(*opcode, *Engine, []byte) error
+	value  byte
+	name   string
+	length int
+	opfunc func(*parsedOpcode, *Engine) error
 }
 
 // These constants are the values of the official opcodes used on the btc wiki,
@@ -302,533 +301,286 @@ const (
 	OpCondSkip  = 2
 )
 
-// Some of the functions in opcodemap call things that themselves then will
-// reference the opcodemap to make decisions (things like op_checksig which
-// needs to parse scripts to remove opcodes, for example).
-// The go compiler is very conservative in this matter and will think there
-// is an initialisation loop. In order to work around this we have the fake
-// ``prevariable'' opcodemapPreinit and then set the real variable to the
-// preinit in init()
-var opcodemap map[byte]*opcode
+// opcodeArray holds details about all possible opcodes such as how many bytes
+// the opcode and any associated data should take, its human-readable name, and
+// the handler function.
+var opcodeArray = [256]opcode{
+	// Data push opcodes.
+	OP_FALSE:     {OP_FALSE, "OP_0", 1, opcodeFalse},
+	OP_DATA_1:    {OP_DATA_1, "OP_DATA_1", 2, opcodePushData},
+	OP_DATA_2:    {OP_DATA_2, "OP_DATA_2", 3, opcodePushData},
+	OP_DATA_3:    {OP_DATA_3, "OP_DATA_3", 4, opcodePushData},
+	OP_DATA_4:    {OP_DATA_4, "OP_DATA_4", 5, opcodePushData},
+	OP_DATA_5:    {OP_DATA_5, "OP_DATA_5", 6, opcodePushData},
+	OP_DATA_6:    {OP_DATA_6, "OP_DATA_6", 7, opcodePushData},
+	OP_DATA_7:    {OP_DATA_7, "OP_DATA_7", 8, opcodePushData},
+	OP_DATA_8:    {OP_DATA_8, "OP_DATA_8", 9, opcodePushData},
+	OP_DATA_9:    {OP_DATA_9, "OP_DATA_9", 10, opcodePushData},
+	OP_DATA_10:   {OP_DATA_10, "OP_DATA_10", 11, opcodePushData},
+	OP_DATA_11:   {OP_DATA_11, "OP_DATA_11", 12, opcodePushData},
+	OP_DATA_12:   {OP_DATA_12, "OP_DATA_12", 13, opcodePushData},
+	OP_DATA_13:   {OP_DATA_13, "OP_DATA_13", 14, opcodePushData},
+	OP_DATA_14:   {OP_DATA_14, "OP_DATA_14", 15, opcodePushData},
+	OP_DATA_15:   {OP_DATA_15, "OP_DATA_15", 16, opcodePushData},
+	OP_DATA_16:   {OP_DATA_16, "OP_DATA_16", 17, opcodePushData},
+	OP_DATA_17:   {OP_DATA_17, "OP_DATA_17", 18, opcodePushData},
+	OP_DATA_18:   {OP_DATA_18, "OP_DATA_18", 19, opcodePushData},
+	OP_DATA_19:   {OP_DATA_19, "OP_DATA_19", 20, opcodePushData},
+	OP_DATA_20:   {OP_DATA_20, "OP_DATA_20", 21, opcodePushData},
+	OP_DATA_21:   {OP_DATA_21, "OP_DATA_21", 22, opcodePushData},
+	OP_DATA_22:   {OP_DATA_22, "OP_DATA_22", 23, opcodePushData},
+	OP_DATA_23:   {OP_DATA_23, "OP_DATA_23", 24, opcodePushData},
+	OP_DATA_24:   {OP_DATA_24, "OP_DATA_24", 25, opcodePushData},
+	OP_DATA_25:   {OP_DATA_25, "OP_DATA_25", 26, opcodePushData},
+	OP_DATA_26:   {OP_DATA_26, "OP_DATA_26", 27, opcodePushData},
+	OP_DATA_27:   {OP_DATA_27, "OP_DATA_27", 28, opcodePushData},
+	OP_DATA_28:   {OP_DATA_28, "OP_DATA_28", 29, opcodePushData},
+	OP_DATA_29:   {OP_DATA_29, "OP_DATA_29", 30, opcodePushData},
+	OP_DATA_30:   {OP_DATA_30, "OP_DATA_30", 31, opcodePushData},
+	OP_DATA_31:   {OP_DATA_31, "OP_DATA_31", 32, opcodePushData},
+	OP_DATA_32:   {OP_DATA_32, "OP_DATA_32", 33, opcodePushData},
+	OP_DATA_33:   {OP_DATA_33, "OP_DATA_33", 34, opcodePushData},
+	OP_DATA_34:   {OP_DATA_34, "OP_DATA_34", 35, opcodePushData},
+	OP_DATA_35:   {OP_DATA_35, "OP_DATA_35", 36, opcodePushData},
+	OP_DATA_36:   {OP_DATA_36, "OP_DATA_36", 37, opcodePushData},
+	OP_DATA_37:   {OP_DATA_37, "OP_DATA_37", 38, opcodePushData},
+	OP_DATA_38:   {OP_DATA_38, "OP_DATA_38", 39, opcodePushData},
+	OP_DATA_39:   {OP_DATA_39, "OP_DATA_39", 40, opcodePushData},
+	OP_DATA_40:   {OP_DATA_40, "OP_DATA_40", 41, opcodePushData},
+	OP_DATA_41:   {OP_DATA_41, "OP_DATA_41", 42, opcodePushData},
+	OP_DATA_42:   {OP_DATA_42, "OP_DATA_42", 43, opcodePushData},
+	OP_DATA_43:   {OP_DATA_43, "OP_DATA_43", 44, opcodePushData},
+	OP_DATA_44:   {OP_DATA_44, "OP_DATA_44", 45, opcodePushData},
+	OP_DATA_45:   {OP_DATA_45, "OP_DATA_45", 46, opcodePushData},
+	OP_DATA_46:   {OP_DATA_46, "OP_DATA_46", 47, opcodePushData},
+	OP_DATA_47:   {OP_DATA_47, "OP_DATA_47", 48, opcodePushData},
+	OP_DATA_48:   {OP_DATA_48, "OP_DATA_48", 49, opcodePushData},
+	OP_DATA_49:   {OP_DATA_49, "OP_DATA_49", 50, opcodePushData},
+	OP_DATA_50:   {OP_DATA_50, "OP_DATA_50", 51, opcodePushData},
+	OP_DATA_51:   {OP_DATA_51, "OP_DATA_51", 52, opcodePushData},
+	OP_DATA_52:   {OP_DATA_52, "OP_DATA_52", 53, opcodePushData},
+	OP_DATA_53:   {OP_DATA_53, "OP_DATA_53", 54, opcodePushData},
+	OP_DATA_54:   {OP_DATA_54, "OP_DATA_54", 55, opcodePushData},
+	OP_DATA_55:   {OP_DATA_55, "OP_DATA_55", 56, opcodePushData},
+	OP_DATA_56:   {OP_DATA_56, "OP_DATA_56", 57, opcodePushData},
+	OP_DATA_57:   {OP_DATA_57, "OP_DATA_57", 58, opcodePushData},
+	OP_DATA_58:   {OP_DATA_58, "OP_DATA_58", 59, opcodePushData},
+	OP_DATA_59:   {OP_DATA_59, "OP_DATA_59", 60, opcodePushData},
+	OP_DATA_60:   {OP_DATA_60, "OP_DATA_60", 61, opcodePushData},
+	OP_DATA_61:   {OP_DATA_61, "OP_DATA_61", 62, opcodePushData},
+	OP_DATA_62:   {OP_DATA_62, "OP_DATA_62", 63, opcodePushData},
+	OP_DATA_63:   {OP_DATA_63, "OP_DATA_63", 64, opcodePushData},
+	OP_DATA_64:   {OP_DATA_64, "OP_DATA_64", 65, opcodePushData},
+	OP_DATA_65:   {OP_DATA_65, "OP_DATA_65", 66, opcodePushData},
+	OP_DATA_66:   {OP_DATA_66, "OP_DATA_66", 67, opcodePushData},
+	OP_DATA_67:   {OP_DATA_67, "OP_DATA_67", 68, opcodePushData},
+	OP_DATA_68:   {OP_DATA_68, "OP_DATA_68", 69, opcodePushData},
+	OP_DATA_69:   {OP_DATA_69, "OP_DATA_69", 70, opcodePushData},
+	OP_DATA_70:   {OP_DATA_70, "OP_DATA_70", 71, opcodePushData},
+	OP_DATA_71:   {OP_DATA_71, "OP_DATA_71", 72, opcodePushData},
+	OP_DATA_72:   {OP_DATA_72, "OP_DATA_72", 73, opcodePushData},
+	OP_DATA_73:   {OP_DATA_73, "OP_DATA_73", 74, opcodePushData},
+	OP_DATA_74:   {OP_DATA_74, "OP_DATA_74", 75, opcodePushData},
+	OP_DATA_75:   {OP_DATA_75, "OP_DATA_75", 76, opcodePushData},
+	OP_PUSHDATA1: {OP_PUSHDATA1, "OP_PUSHDATA1", -1, opcodePushData},
+	OP_PUSHDATA2: {OP_PUSHDATA2, "OP_PUSHDATA2", -2, opcodePushData},
+	OP_PUSHDATA4: {OP_PUSHDATA4, "OP_PUSHDATA4", -4, opcodePushData},
+	OP_1NEGATE:   {OP_1NEGATE, "OP_1NEGATE", 1, opcode1Negate},
+	OP_RESERVED:  {OP_RESERVED, "OP_RESERVED", 1, opcodeReserved},
+	OP_TRUE:      {OP_TRUE, "OP_1", 1, opcodeN},
+	OP_2:         {OP_2, "OP_2", 1, opcodeN},
+	OP_3:         {OP_3, "OP_3", 1, opcodeN},
+	OP_4:         {OP_4, "OP_4", 1, opcodeN},
+	OP_5:         {OP_5, "OP_5", 1, opcodeN},
+	OP_6:         {OP_6, "OP_6", 1, opcodeN},
+	OP_7:         {OP_7, "OP_7", 1, opcodeN},
+	OP_8:         {OP_8, "OP_8", 1, opcodeN},
+	OP_9:         {OP_9, "OP_9", 1, opcodeN},
+	OP_10:        {OP_10, "OP_10", 1, opcodeN},
+	OP_11:        {OP_11, "OP_11", 1, opcodeN},
+	OP_12:        {OP_12, "OP_12", 1, opcodeN},
+	OP_13:        {OP_13, "OP_13", 1, opcodeN},
+	OP_14:        {OP_14, "OP_14", 1, opcodeN},
+	OP_15:        {OP_15, "OP_15", 1, opcodeN},
+	OP_16:        {OP_16, "OP_16", 1, opcodeN},
 
-func init() {
-	opcodemap = opcodemapPreinit
-}
+	// Control opcodes.
+	OP_NOP:      {OP_NOP, "OP_NOP", 1, opcodeNop},
+	OP_VER:      {OP_VER, "OP_VER", 1, opcodeReserved},
+	OP_IF:       {OP_IF, "OP_IF", 1, opcodeIf},
+	OP_NOTIF:    {OP_NOTIF, "OP_NOTIF", 1, opcodeNotIf},
+	OP_VERIF:    {OP_VERIF, "OP_VERIF", 1, opcodeReserved},
+	OP_VERNOTIF: {OP_VERNOTIF, "OP_VERNOTIF", 1, opcodeReserved},
+	OP_ELSE:     {OP_ELSE, "OP_ELSE", 1, opcodeElse},
+	OP_ENDIF:    {OP_ENDIF, "OP_ENDIF", 1, opcodeEndif},
+	OP_VERIFY:   {OP_VERIFY, "OP_VERIFY", 1, opcodeVerify},
+	OP_RETURN:   {OP_RETURN, "OP_RETURN", 1, opcodeReturn},
 
-var opcodemapPreinit = map[byte]*opcode{
-	OP_FALSE: {value: OP_FALSE, name: "OP_0", length: 1,
-		opfunc: opcodeFalse},
-	OP_DATA_1: {value: OP_DATA_1, name: "OP_DATA_1", length: 2,
-		opfunc: opcodePushData},
-	OP_DATA_2: {value: OP_DATA_2, name: "OP_DATA_2", length: 3,
-		opfunc: opcodePushData},
-	OP_DATA_3: {value: OP_DATA_3, name: "OP_DATA_3", length: 4,
-		opfunc: opcodePushData},
-	OP_DATA_4: {value: OP_DATA_4, name: "OP_DATA_4", length: 5,
-		opfunc: opcodePushData},
-	OP_DATA_5: {value: OP_DATA_5, name: "OP_DATA_5", length: 6,
-		opfunc: opcodePushData},
-	OP_DATA_6: {value: OP_DATA_6, name: "OP_DATA_6", length: 7,
-		opfunc: opcodePushData},
-	OP_DATA_7: {value: OP_DATA_7, name: "OP_DATA_7", length: 8,
-		opfunc: opcodePushData},
-	OP_DATA_8: {value: OP_DATA_8, name: "OP_DATA_8", length: 9,
-		opfunc: opcodePushData},
-	OP_DATA_9: {value: OP_DATA_9, name: "OP_DATA_9", length: 10,
-		opfunc: opcodePushData},
-	OP_DATA_10: {value: OP_DATA_10, name: "OP_DATA_10", length: 11,
-		opfunc: opcodePushData},
-	OP_DATA_11: {value: OP_DATA_11, name: "OP_DATA_11", length: 12,
-		opfunc: opcodePushData},
-	OP_DATA_12: {value: OP_DATA_12, name: "OP_DATA_12", length: 13,
-		opfunc: opcodePushData},
-	OP_DATA_13: {value: OP_DATA_13, name: "OP_DATA_13", length: 14,
-		opfunc: opcodePushData},
-	OP_DATA_14: {value: OP_DATA_14, name: "OP_DATA_14", length: 15,
-		opfunc: opcodePushData},
-	OP_DATA_15: {value: OP_DATA_15, name: "OP_DATA_15", length: 16,
-		opfunc: opcodePushData},
-	OP_DATA_16: {value: OP_DATA_16, name: "OP_DATA_16", length: 17,
-		opfunc: opcodePushData},
-	OP_DATA_17: {value: OP_DATA_17, name: "OP_DATA_17", length: 18,
-		opfunc: opcodePushData},
-	OP_DATA_18: {value: OP_DATA_18, name: "OP_DATA_18", length: 19,
-		opfunc: opcodePushData},
-	OP_DATA_19: {value: OP_DATA_19, name: "OP_DATA_19", length: 20,
-		opfunc: opcodePushData},
-	OP_DATA_20: {value: OP_DATA_20, name: "OP_DATA_20", length: 21,
-		opfunc: opcodePushData},
-	OP_DATA_21: {value: OP_DATA_21, name: "OP_DATA_21", length: 22,
-		opfunc: opcodePushData},
-	OP_DATA_22: {value: OP_DATA_22, name: "OP_DATA_22", length: 23,
-		opfunc: opcodePushData},
-	OP_DATA_23: {value: OP_DATA_23, name: "OP_DATA_23", length: 24,
-		opfunc: opcodePushData},
-	OP_DATA_24: {value: OP_DATA_24, name: "OP_DATA_24", length: 25,
-		opfunc: opcodePushData},
-	OP_DATA_25: {value: OP_DATA_25, name: "OP_DATA_25", length: 26,
-		opfunc: opcodePushData},
-	OP_DATA_26: {value: OP_DATA_26, name: "OP_DATA_26", length: 27,
-		opfunc: opcodePushData},
-	OP_DATA_27: {value: OP_DATA_27, name: "OP_DATA_27", length: 28,
-		opfunc: opcodePushData},
-	OP_DATA_28: {value: OP_DATA_28, name: "OP_DATA_28", length: 29,
-		opfunc: opcodePushData},
-	OP_DATA_29: {value: OP_DATA_29, name: "OP_DATA_29", length: 30,
-		opfunc: opcodePushData},
-	OP_DATA_30: {value: OP_DATA_30, name: "OP_DATA_30", length: 31,
-		opfunc: opcodePushData},
-	OP_DATA_31: {value: OP_DATA_31, name: "OP_DATA_31", length: 32,
-		opfunc: opcodePushData},
-	OP_DATA_32: {value: OP_DATA_32, name: "OP_DATA_32", length: 33,
-		opfunc: opcodePushData},
-	OP_DATA_33: {value: OP_DATA_33, name: "OP_DATA_33", length: 34,
-		opfunc: opcodePushData},
-	OP_DATA_34: {value: OP_DATA_34, name: "OP_DATA_34", length: 35,
-		opfunc: opcodePushData},
-	OP_DATA_35: {value: OP_DATA_35, name: "OP_DATA_35", length: 36,
-		opfunc: opcodePushData},
-	OP_DATA_36: {value: OP_DATA_36, name: "OP_DATA_36", length: 37,
-		opfunc: opcodePushData},
-	OP_DATA_37: {value: OP_DATA_37, name: "OP_DATA_37", length: 38,
-		opfunc: opcodePushData},
-	OP_DATA_38: {value: OP_DATA_38, name: "OP_DATA_38", length: 39,
-		opfunc: opcodePushData},
-	OP_DATA_39: {value: OP_DATA_39, name: "OP_DATA_39", length: 40,
-		opfunc: opcodePushData},
-	OP_DATA_40: {value: OP_DATA_40, name: "OP_DATA_40", length: 41,
-		opfunc: opcodePushData},
-	OP_DATA_41: {value: OP_DATA_41, name: "OP_DATA_41", length: 42,
-		opfunc: opcodePushData},
-	OP_DATA_42: {value: OP_DATA_42, name: "OP_DATA_42", length: 43,
-		opfunc: opcodePushData},
-	OP_DATA_43: {value: OP_DATA_43, name: "OP_DATA_43", length: 44,
-		opfunc: opcodePushData},
-	OP_DATA_44: {value: OP_DATA_44, name: "OP_DATA_44", length: 45,
-		opfunc: opcodePushData},
-	OP_DATA_45: {value: OP_DATA_45, name: "OP_DATA_45", length: 46,
-		opfunc: opcodePushData},
-	OP_DATA_46: {value: OP_DATA_46, name: "OP_DATA_46", length: 47,
-		opfunc: opcodePushData},
-	OP_DATA_47: {value: OP_DATA_47, name: "OP_DATA_47", length: 48,
-		opfunc: opcodePushData},
-	OP_DATA_48: {value: OP_DATA_48, name: "OP_DATA_48", length: 49,
-		opfunc: opcodePushData},
-	OP_DATA_49: {value: OP_DATA_49, name: "OP_DATA_49", length: 50,
-		opfunc: opcodePushData},
-	OP_DATA_50: {value: OP_DATA_50, name: "OP_DATA_50", length: 51,
-		opfunc: opcodePushData},
-	OP_DATA_51: {value: OP_DATA_51, name: "OP_DATA_51", length: 52,
-		opfunc: opcodePushData},
-	OP_DATA_52: {value: OP_DATA_52, name: "OP_DATA_52", length: 53,
-		opfunc: opcodePushData},
-	OP_DATA_53: {value: OP_DATA_53, name: "OP_DATA_53", length: 54,
-		opfunc: opcodePushData},
-	OP_DATA_54: {value: OP_DATA_54, name: "OP_DATA_54", length: 55,
-		opfunc: opcodePushData},
-	OP_DATA_55: {value: OP_DATA_55, name: "OP_DATA_55", length: 56,
-		opfunc: opcodePushData},
-	OP_DATA_56: {value: OP_DATA_56, name: "OP_DATA_56", length: 57,
-		opfunc: opcodePushData},
-	OP_DATA_57: {value: OP_DATA_57, name: "OP_DATA_57", length: 58,
-		opfunc: opcodePushData},
-	OP_DATA_58: {value: OP_DATA_58, name: "OP_DATA_58", length: 59,
-		opfunc: opcodePushData},
-	OP_DATA_59: {value: OP_DATA_59, name: "OP_DATA_59", length: 60,
-		opfunc: opcodePushData},
-	OP_DATA_60: {value: OP_DATA_60, name: "OP_DATA_60", length: 61,
-		opfunc: opcodePushData},
-	OP_DATA_61: {value: OP_DATA_61, name: "OP_DATA_61", length: 62,
-		opfunc: opcodePushData},
-	OP_DATA_62: {value: OP_DATA_62, name: "OP_DATA_62", length: 63,
-		opfunc: opcodePushData},
-	OP_DATA_63: {value: OP_DATA_63, name: "OP_DATA_63", length: 64,
-		opfunc: opcodePushData},
-	OP_DATA_64: {value: OP_DATA_64, name: "OP_DATA_64", length: 65,
-		opfunc: opcodePushData},
-	OP_DATA_65: {value: OP_DATA_65, name: "OP_DATA_65", length: 66,
-		opfunc: opcodePushData},
-	OP_DATA_66: {value: OP_DATA_66, name: "OP_DATA_66", length: 67,
-		opfunc: opcodePushData},
-	OP_DATA_67: {value: OP_DATA_67, name: "OP_DATA_67", length: 68,
-		opfunc: opcodePushData},
-	OP_DATA_68: {value: OP_DATA_68, name: "OP_DATA_68", length: 69,
-		opfunc: opcodePushData},
-	OP_DATA_69: {value: OP_DATA_69, name: "OP_DATA_69", length: 70,
-		opfunc: opcodePushData},
-	OP_DATA_70: {value: OP_DATA_70, name: "OP_DATA_70", length: 71,
-		opfunc: opcodePushData},
-	OP_DATA_71: {value: OP_DATA_71, name: "OP_DATA_71", length: 72,
-		opfunc: opcodePushData},
-	OP_DATA_72: {value: OP_DATA_72, name: "OP_DATA_72", length: 73,
-		opfunc: opcodePushData},
-	OP_DATA_73: {value: OP_DATA_73, name: "OP_DATA_73", length: 74,
-		opfunc: opcodePushData},
-	OP_DATA_74: {value: OP_DATA_74, name: "OP_DATA_74", length: 75,
-		opfunc: opcodePushData},
-	OP_DATA_75: {value: OP_DATA_75, name: "OP_DATA_75", length: 76,
-		opfunc: opcodePushData},
-	OP_PUSHDATA1: {value: OP_PUSHDATA1, name: "OP_PUSHDATA1", length: -1,
-		opfunc: opcodePushData},
-	OP_PUSHDATA2: {value: OP_PUSHDATA2, name: "OP_PUSHDATA2", length: -2,
-		opfunc: opcodePushData},
-	OP_PUSHDATA4: {value: OP_PUSHDATA4, name: "OP_PUSHDATA4", length: -4,
-		opfunc: opcodePushData},
-	OP_1NEGATE: {value: OP_1NEGATE, name: "OP_1NEGATE", length: 1,
-		opfunc: opcode1Negate},
-	OP_RESERVED: {value: OP_RESERVED, name: "OP_RESERVED", length: 1,
-		opfunc: opcodeReserved},
-	OP_TRUE: {value: OP_TRUE, name: "OP_1", length: 1,
-		opfunc: opcodeN},
-	OP_2: {value: OP_2, name: "OP_2", length: 1,
-		opfunc: opcodeN},
-	OP_3: {value: OP_3, name: "OP_3", length: 1,
-		opfunc: opcodeN},
-	OP_4: {value: OP_4, name: "OP_4", length: 1,
-		opfunc: opcodeN},
-	OP_5: {value: OP_5, name: "OP_5", length: 1,
-		opfunc: opcodeN},
-	OP_6: {value: OP_6, name: "OP_6", length: 1,
-		opfunc: opcodeN},
-	OP_7: {value: OP_7, name: "OP_7", length: 1,
-		opfunc: opcodeN},
-	OP_8: {value: OP_8, name: "OP_8", length: 1,
-		opfunc: opcodeN},
-	OP_9: {value: OP_9, name: "OP_9", length: 1,
-		opfunc: opcodeN},
-	OP_10: {value: OP_10, name: "OP_10", length: 1,
-		opfunc: opcodeN},
-	OP_11: {value: OP_11, name: "OP_11", length: 1,
-		opfunc: opcodeN},
-	OP_12: {value: OP_12, name: "OP_12", length: 1,
-		opfunc: opcodeN},
-	OP_13: {value: OP_13, name: "OP_13", length: 1,
-		opfunc: opcodeN},
-	OP_14: {value: OP_14, name: "OP_14", length: 1,
-		opfunc: opcodeN},
-	OP_15: {value: OP_15, name: "OP_15", length: 1,
-		opfunc: opcodeN},
-	OP_16: {value: OP_16, name: "OP_16", length: 1,
-		opfunc: opcodeN},
-	OP_NOP: {value: OP_NOP, name: "OP_NOP", length: 1,
-		opfunc: opcodeNop},
-	OP_VER: {value: OP_VER, name: "OP_VER", length: 1,
-		opfunc: opcodeReserved},
-	OP_IF: {value: OP_IF, name: "OP_IF", length: 1,
-		opfunc: opcodeIf},
-	OP_NOTIF: {value: OP_NOTIF, name: "OP_NOTIF", length: 1,
-		opfunc: opcodeNotIf},
-	OP_VERIF: {value: OP_VERIF, name: "OP_VERIF", length: 1,
-		opfunc: opcodeReserved},
-	OP_VERNOTIF: {value: OP_VERNOTIF, name: "OP_VERNOTIF", length: 1,
-		opfunc: opcodeReserved},
-	OP_ELSE: {value: OP_ELSE, name: "OP_ELSE", length: 1,
-		opfunc: opcodeElse},
-	OP_ENDIF: {value: OP_ENDIF, name: "OP_ENDIF", length: 1,
-		opfunc: opcodeEndif},
-	OP_VERIFY: {value: OP_VERIFY, name: "OP_VERIFY", length: 1,
-		opfunc: opcodeVerify},
-	OP_RETURN: {value: OP_RETURN, name: "OP_RETURN", length: 1,
-		opfunc: opcodeReturn},
-	OP_TOALTSTACK: {value: OP_TOALTSTACK, name: "OP_TOALTSTACK", length: 1,
-		opfunc: opcodeToAltStack},
-	OP_FROMALTSTACK: {value: OP_FROMALTSTACK, name: "OP_FROMALTSTACK", length: 1,
-		opfunc: opcodeFromAltStack},
-	OP_2DROP: {value: OP_2DROP, name: "OP_2DROP", length: 1,
-		opfunc: opcode2Drop},
-	OP_2DUP: {value: OP_2DUP, name: "OP_2DUP", length: 1,
-		opfunc: opcode2Dup},
-	OP_3DUP: {value: OP_3DUP, name: "OP_3DUP", length: 1,
-		opfunc: opcode3Dup},
-	OP_2OVER: {value: OP_2OVER, name: "OP_2OVER", length: 1,
-		opfunc: opcode2Over},
-	OP_2ROT: {value: OP_2ROT, name: "OP_2ROT", length: 1,
-		opfunc: opcode2Rot},
-	OP_2SWAP: {value: OP_2SWAP, name: "OP_2SWAP", length: 1,
-		opfunc: opcode2Swap},
-	OP_IFDUP: {value: OP_IFDUP, name: "OP_IFDUP", length: 1,
-		opfunc: opcodeIfDup},
-	OP_DEPTH: {value: OP_DEPTH, name: "OP_DEPTH", length: 1,
-		opfunc: opcodeDepth},
-	OP_DROP: {value: OP_DROP, name: "OP_DROP", length: 1,
-		opfunc: opcodeDrop},
-	OP_DUP: {value: OP_DUP, name: "OP_DUP", length: 1,
-		opfunc: opcodeDup},
-	OP_NIP: {value: OP_NIP, name: "OP_NIP", length: 1,
-		opfunc: opcodeNip},
-	OP_OVER: {value: OP_OVER, name: "OP_OVER", length: 1,
-		opfunc: opcodeOver},
-	OP_PICK: {value: OP_PICK, name: "OP_PICK", length: 1,
-		opfunc: opcodePick},
-	OP_ROLL: {value: OP_ROLL, name: "OP_ROLL", length: 1,
-		opfunc: opcodeRoll},
-	OP_ROT: {value: OP_ROT, name: "OP_ROT", length: 1,
-		opfunc: opcodeRot},
-	OP_SWAP: {value: OP_SWAP, name: "OP_SWAP", length: 1,
-		opfunc: opcodeSwap},
-	OP_TUCK: {value: OP_TUCK, name: "OP_TUCK", length: 1,
-		opfunc: opcodeTuck},
-	OP_CAT: {value: OP_CAT, name: "OP_CAT", length: 1,
-		opfunc: opcodeDisabled},
-	OP_SUBSTR: {value: OP_SUBSTR, name: "OP_SUBSTR", length: 1,
-		opfunc: opcodeDisabled},
-	OP_LEFT: {value: OP_LEFT, name: "OP_LEFT", length: 1,
-		opfunc: opcodeDisabled},
-	OP_RIGHT: {value: OP_RIGHT, name: "OP_RIGHT", length: 1,
-		opfunc: opcodeDisabled},
-	OP_SIZE: {value: OP_SIZE, name: "OP_SIZE", length: 1,
-		opfunc: opcodeSize},
-	OP_INVERT: {value: OP_INVERT, name: "OP_INVERT", length: 1,
-		opfunc: opcodeDisabled},
-	OP_AND: {value: OP_AND, name: "OP_AND", length: 1,
-		opfunc: opcodeDisabled},
-	OP_OR: {value: OP_OR, name: "OP_OR", length: 1,
-		opfunc: opcodeDisabled},
-	OP_XOR: {value: OP_XOR, name: "OP_XOR", length: 1,
-		opfunc: opcodeDisabled},
-	OP_EQUAL: {value: OP_EQUAL, name: "OP_EQUAL", length: 1,
-		opfunc: opcodeEqual},
-	OP_EQUALVERIFY: {value: OP_EQUALVERIFY, name: "OP_EQUALVERIFY", length: 1,
-		opfunc: opcodeEqualVerify},
-	OP_RESERVED1: {value: OP_RESERVED1, name: "OP_RESERVED1", length: 1,
-		opfunc: opcodeReserved},
-	OP_RESERVED2: {value: OP_RESERVED2, name: "OP_RESERVED2", length: 1,
-		opfunc: opcodeReserved},
-	OP_1ADD: {value: OP_1ADD, name: "OP_1ADD", length: 1,
-		opfunc: opcode1Add},
-	OP_1SUB: {value: OP_1SUB, name: "OP_1SUB", length: 1,
-		opfunc: opcode1Sub},
-	OP_2MUL: {value: OP_2MUL, name: "OP_2MUL", length: 1,
-		opfunc: opcodeDisabled},
-	OP_2DIV: {value: OP_2DIV, name: "OP_2DIV", length: 1,
-		opfunc: opcodeDisabled},
-	OP_NEGATE: {value: OP_NEGATE, name: "OP_NEGATE", length: 1,
-		opfunc: opcodeNegate},
-	OP_ABS: {value: OP_ABS, name: "OP_ABS", length: 1,
-		opfunc: opcodeAbs},
-	OP_NOT: {value: OP_NOT, name: "OP_NOT", length: 1,
-		opfunc: opcodeNot},
-	OP_0NOTEQUAL: {value: OP_0NOTEQUAL, name: "OP_0NOTEQUAL", length: 1,
-		opfunc: opcode0NotEqual},
-	OP_ADD: {value: OP_ADD, name: "OP_ADD", length: 1,
-		opfunc: opcodeAdd},
-	OP_SUB: {value: OP_SUB, name: "OP_SUB", length: 1,
-		opfunc: opcodeSub},
-	OP_MUL: {value: OP_MUL, name: "OP_MUL", length: 1,
-		opfunc: opcodeDisabled},
-	OP_DIV: {value: OP_DIV, name: "OP_DIV", length: 1,
-		opfunc: opcodeDisabled},
-	OP_MOD: {value: OP_MOD, name: "OP_MOD", length: 1,
-		opfunc: opcodeDisabled},
-	OP_LSHIFT: {value: OP_LSHIFT, name: "OP_LSHIFT", length: 1,
-		opfunc: opcodeDisabled},
-	OP_RSHIFT: {value: OP_RSHIFT, name: "OP_RSHIFT", length: 1,
-		opfunc: opcodeDisabled},
-	OP_BOOLAND: {value: OP_BOOLAND, name: "OP_BOOLAND", length: 1,
-		opfunc: opcodeBoolAnd},
-	OP_BOOLOR: {value: OP_BOOLOR, name: "OP_BOOLOR", length: 1,
-		opfunc: opcodeBoolOr},
-	OP_NUMEQUAL: {value: OP_NUMEQUAL, name: "OP_NUMEQUAL", length: 1,
-		opfunc: opcodeNumEqual},
-	OP_NUMEQUALVERIFY: {value: OP_NUMEQUALVERIFY, name: "OP_NUMEQUALVERIFY", length: 1,
-		opfunc: opcodeNumEqualVerify},
-	OP_NUMNOTEQUAL: {value: OP_NUMNOTEQUAL, name: "OP_NUMNOTEQUAL", length: 1,
-		opfunc: opcodeNumNotEqual},
-	OP_LESSTHAN: {value: OP_LESSTHAN, name: "OP_LESSTHAN", length: 1,
-		opfunc: opcodeLessThan},
-	OP_GREATERTHAN: {value: OP_GREATERTHAN, name: "OP_GREATERTHAN", length: 1,
-		opfunc: opcodeGreaterThan},
-	OP_LESSTHANOREQUAL: {value: OP_LESSTHANOREQUAL, name: "OP_LESSTHANOREQUAL", length: 1,
-		opfunc: opcodeLessThanOrEqual},
-	OP_GREATERTHANOREQUAL: {value: OP_GREATERTHANOREQUAL, name: "OP_GREATERTHANOREQUAL", length: 1,
-		opfunc: opcodeGreaterThanOrEqual},
-	OP_MIN: {value: OP_MIN, name: "OP_MIN", length: 1,
-		opfunc: opcodeMin},
-	OP_MAX: {value: OP_MAX, name: "OP_MAX", length: 1,
-		opfunc: opcodeMax},
-	OP_WITHIN: {value: OP_WITHIN, name: "OP_WITHIN", length: 1,
-		opfunc: opcodeWithin},
-	OP_RIPEMD160: {value: OP_RIPEMD160, name: "OP_RIPEMD160", length: 1,
-		opfunc: opcodeRipemd160},
-	OP_SHA1: {value: OP_SHA1, name: "OP_SHA1", length: 1,
-		opfunc: opcodeSha1},
-	OP_SHA256: {value: OP_SHA256, name: "OP_SHA256", length: 1,
-		opfunc: opcodeSha256},
-	OP_HASH160: {value: OP_HASH160, name: "OP_HASH160", length: 1,
-		opfunc: opcodeHash160},
-	OP_HASH256: {value: OP_HASH256, name: "OP_HASH256", length: 1,
-		opfunc: opcodeHash256},
-	OP_CODESEPARATOR: {value: OP_CODESEPARATOR, name: "OP_CODESEPARATOR", length: 1,
-		opfunc: opcodeCodeSeparator},
-	OP_CHECKSIG: {value: OP_CHECKSIG, name: "OP_CHECKSIG", length: 1,
-		opfunc: opcodeCheckSig},
-	OP_CHECKSIGVERIFY: {value: OP_CHECKSIGVERIFY, name: "OP_CHECKSIGVERIFY", length: 1,
-		opfunc: opcodeCheckSigVerify},
-	OP_CHECKMULTISIG: {value: OP_CHECKMULTISIG, name: "OP_CHECKMULTISIG", length: 1,
-		opfunc: opcodeCheckMultiSig},
-	OP_CHECKMULTISIGVERIFY: {value: OP_CHECKMULTISIGVERIFY, name: "OP_CHECKMULTISIGVERIFY", length: 1,
+	// Stack opcodes.
+	OP_TOALTSTACK:   {OP_TOALTSTACK, "OP_TOALTSTACK", 1, opcodeToAltStack},
+	OP_FROMALTSTACK: {OP_FROMALTSTACK, "OP_FROMALTSTACK", 1, opcodeFromAltStack},
+	OP_2DROP:        {OP_2DROP, "OP_2DROP", 1, opcode2Drop},
+	OP_2DUP:         {OP_2DUP, "OP_2DUP", 1, opcode2Dup},
+	OP_3DUP:         {OP_3DUP, "OP_3DUP", 1, opcode3Dup},
+	OP_2OVER:        {OP_2OVER, "OP_2OVER", 1, opcode2Over},
+	OP_2ROT:         {OP_2ROT, "OP_2ROT", 1, opcode2Rot},
+	OP_2SWAP:        {OP_2SWAP, "OP_2SWAP", 1, opcode2Swap},
+	OP_IFDUP:        {OP_IFDUP, "OP_IFDUP", 1, opcodeIfDup},
+	OP_DEPTH:        {OP_DEPTH, "OP_DEPTH", 1, opcodeDepth},
+	OP_DROP:         {OP_DROP, "OP_DROP", 1, opcodeDrop},
+	OP_DUP:          {OP_DUP, "OP_DUP", 1, opcodeDup},
+	OP_NIP:          {OP_NIP, "OP_NIP", 1, opcodeNip},
+	OP_OVER:         {OP_OVER, "OP_OVER", 1, opcodeOver},
+	OP_PICK:         {OP_PICK, "OP_PICK", 1, opcodePick},
+	OP_ROLL:         {OP_ROLL, "OP_ROLL", 1, opcodeRoll},
+	OP_ROT:          {OP_ROT, "OP_ROT", 1, opcodeRot},
+	OP_SWAP:         {OP_SWAP, "OP_SWAP", 1, opcodeSwap},
+	OP_TUCK:         {OP_TUCK, "OP_TUCK", 1, opcodeTuck},
 
-		opfunc: opcodeCheckMultiSigVerify},
-	OP_NOP1: {value: OP_NOP1, name: "OP_NOP1", length: 1,
-		opfunc: opcodeNop},
-	OP_NOP2: {value: OP_NOP2, name: "OP_NOP2", length: 1,
-		opfunc: opcodeNop},
-	OP_NOP3: {value: OP_NOP3, name: "OP_NOP3", length: 1,
-		opfunc: opcodeNop},
-	OP_NOP4: {value: OP_NOP4, name: "OP_NOP4", length: 1,
-		opfunc: opcodeNop},
-	OP_NOP5: {value: OP_NOP5, name: "OP_NOP5", length: 1,
-		opfunc: opcodeNop},
-	OP_NOP6: {value: OP_NOP6, name: "OP_NOP6", length: 1,
-		opfunc: opcodeNop},
-	OP_NOP7: {value: OP_NOP7, name: "OP_NOP7", length: 1,
-		opfunc: opcodeNop},
-	OP_NOP8: {value: OP_NOP8, name: "OP_NOP8", length: 1,
-		opfunc: opcodeNop},
-	OP_NOP9: {value: OP_NOP9, name: "OP_NOP9", length: 1,
-		opfunc: opcodeNop},
-	OP_NOP10: {value: OP_NOP10, name: "OP_NOP10", length: 1,
-		opfunc: opcodeNop},
-	OP_UNKNOWN186: {value: OP_UNKNOWN186, name: "OP_UNKNOWN186", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN187: {value: OP_UNKNOWN187, name: "OP_UNKNOWN187", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN188: {value: OP_UNKNOWN188, name: "OP_UNKNOWN188", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN189: {value: OP_UNKNOWN189, name: "OP_UNKNOWN189", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN190: {value: OP_UNKNOWN190, name: "OP_UNKNOWN190", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN191: {value: OP_UNKNOWN191, name: "OP_UNKNOWN191", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN192: {value: OP_UNKNOWN192, name: "OP_UNKNOWN192", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN193: {value: OP_UNKNOWN193, name: "OP_UNKNOWN193", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN194: {value: OP_UNKNOWN194, name: "OP_UNKNOWN194", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN195: {value: OP_UNKNOWN195, name: "OP_UNKNOWN195", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN196: {value: OP_UNKNOWN196, name: "OP_UNKNOWN196", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN197: {value: OP_UNKNOWN197, name: "OP_UNKNOWN197", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN198: {value: OP_UNKNOWN198, name: "OP_UNKNOWN198", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN199: {value: OP_UNKNOWN199, name: "OP_UNKNOWN199", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN200: {value: OP_UNKNOWN200, name: "OP_UNKNOWN200", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN201: {value: OP_UNKNOWN201, name: "OP_UNKNOWN201", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN202: {value: OP_UNKNOWN202, name: "OP_UNKNOWN202", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN203: {value: OP_UNKNOWN203, name: "OP_UNKNOWN203", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN204: {value: OP_UNKNOWN204, name: "OP_UNKNOWN204", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN205: {value: OP_UNKNOWN205, name: "OP_UNKNOWN205", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN206: {value: OP_UNKNOWN206, name: "OP_UNKNOWN206", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN207: {value: OP_UNKNOWN207, name: "OP_UNKNOWN207", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN208: {value: OP_UNKNOWN208, name: "OP_UNKNOWN208", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN209: {value: OP_UNKNOWN209, name: "OP_UNKNOWN209", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN210: {value: OP_UNKNOWN210, name: "OP_UNKNOWN210", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN211: {value: OP_UNKNOWN211, name: "OP_UNKNOWN211", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN212: {value: OP_UNKNOWN212, name: "OP_UNKNOWN212", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN213: {value: OP_UNKNOWN213, name: "OP_UNKNOWN213", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN214: {value: OP_UNKNOWN214, name: "OP_UNKNOWN214", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN215: {value: OP_UNKNOWN215, name: "OP_UNKNOWN215", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN216: {value: OP_UNKNOWN216, name: "OP_UNKNOWN216", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN217: {value: OP_UNKNOWN217, name: "OP_UNKNOWN217", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN218: {value: OP_UNKNOWN218, name: "OP_UNKNOWN218", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN219: {value: OP_UNKNOWN219, name: "OP_UNKNOWN219", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN220: {value: OP_UNKNOWN220, name: "OP_UNKNOWN220", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN221: {value: OP_UNKNOWN221, name: "OP_UNKNOWN221", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN222: {value: OP_UNKNOWN222, name: "OP_UNKNOWN222", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN223: {value: OP_UNKNOWN223, name: "OP_UNKNOWN223", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN224: {value: OP_UNKNOWN224, name: "OP_UNKNOWN224", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN225: {value: OP_UNKNOWN225, name: "OP_UNKNOWN225", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN226: {value: OP_UNKNOWN226, name: "OP_UNKNOWN226", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN227: {value: OP_UNKNOWN227, name: "OP_UNKNOWN227", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN228: {value: OP_UNKNOWN228, name: "OP_UNKNOWN228", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN229: {value: OP_UNKNOWN229, name: "OP_UNKNOWN229", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN230: {value: OP_UNKNOWN230, name: "OP_UNKNOWN230", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN231: {value: OP_UNKNOWN231, name: "OP_UNKNOWN231", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN232: {value: OP_UNKNOWN232, name: "OP_UNKNOWN232", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN233: {value: OP_UNKNOWN233, name: "OP_UNKNOWN233", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN234: {value: OP_UNKNOWN234, name: "OP_UNKNOWN234", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN235: {value: OP_UNKNOWN235, name: "OP_UNKNOWN235", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN236: {value: OP_UNKNOWN236, name: "OP_UNKNOWN236", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN237: {value: OP_UNKNOWN237, name: "OP_UNKNOWN237", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN238: {value: OP_UNKNOWN238, name: "OP_UNKNOWN238", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN239: {value: OP_UNKNOWN239, name: "OP_UNKNOWN239", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN240: {value: OP_UNKNOWN240, name: "OP_UNKNOWN240", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN241: {value: OP_UNKNOWN241, name: "OP_UNKNOWN241", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN242: {value: OP_UNKNOWN242, name: "OP_UNKNOWN242", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN243: {value: OP_UNKNOWN243, name: "OP_UNKNOWN243", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN244: {value: OP_UNKNOWN244, name: "OP_UNKNOWN244", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN245: {value: OP_UNKNOWN245, name: "OP_UNKNOWN245", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN246: {value: OP_UNKNOWN246, name: "OP_UNKNOWN246", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN247: {value: OP_UNKNOWN247, name: "OP_UNKNOWN247", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN248: {value: OP_UNKNOWN248, name: "OP_UNKNOWN248", length: 1,
-		opfunc: opcodeInvalid},
-	OP_SMALLDATA: {value: OP_SMALLDATA, name: "OP_SMALLDATA", length: 1,
-		opfunc: opcodeInvalid},
-	OP_SMALLINTEGER: {value: OP_SMALLINTEGER, name: "OP_SMALLINTEGER",
-		length: 1, opfunc: opcodeInvalid},
-	OP_PUBKEYS: {value: OP_PUBKEYS, name: "OP_PUBKEYS", length: 1,
-		opfunc: opcodeInvalid},
-	OP_UNKNOWN252: {value: OP_UNKNOWN252, name: "OP_UNKNOWN252", length: 1,
-		opfunc: opcodeInvalid},
-	OP_PUBKEYHASH: {value: OP_PUBKEYHASH, name: "OP_PUBKEYHASH", length: 1,
-		opfunc: opcodeInvalid},
-	OP_PUBKEY: {value: OP_PUBKEY, name: "OP_PUBKEY", length: 1,
-		opfunc: opcodeInvalid},
-	OP_INVALIDOPCODE: {value: OP_INVALIDOPCODE, name: "OP_INVALIDOPCODE",
-		length: 1, opfunc: opcodeInvalid},
+	// Splice opcodes.
+	OP_CAT:    {OP_CAT, "OP_CAT", 1, opcodeDisabled},
+	OP_SUBSTR: {OP_SUBSTR, "OP_SUBSTR", 1, opcodeDisabled},
+	OP_LEFT:   {OP_LEFT, "OP_LEFT", 1, opcodeDisabled},
+	OP_RIGHT:  {OP_RIGHT, "OP_RIGHT", 1, opcodeDisabled},
+	OP_SIZE:   {OP_SIZE, "OP_SIZE", 1, opcodeSize},
+
+	// Bitwise logic opcodes.
+	OP_INVERT:      {OP_INVERT, "OP_INVERT", 1, opcodeDisabled},
+	OP_AND:         {OP_AND, "OP_AND", 1, opcodeDisabled},
+	OP_OR:          {OP_OR, "OP_OR", 1, opcodeDisabled},
+	OP_XOR:         {OP_XOR, "OP_XOR", 1, opcodeDisabled},
+	OP_EQUAL:       {OP_EQUAL, "OP_EQUAL", 1, opcodeEqual},
+	OP_EQUALVERIFY: {OP_EQUALVERIFY, "OP_EQUALVERIFY", 1, opcodeEqualVerify},
+	OP_RESERVED1:   {OP_RESERVED1, "OP_RESERVED1", 1, opcodeReserved},
+	OP_RESERVED2:   {OP_RESERVED2, "OP_RESERVED2", 1, opcodeReserved},
+
+	// Numeric related opcodes.
+	OP_1ADD:               {OP_1ADD, "OP_1ADD", 1, opcode1Add},
+	OP_1SUB:               {OP_1SUB, "OP_1SUB", 1, opcode1Sub},
+	OP_2MUL:               {OP_2MUL, "OP_2MUL", 1, opcodeDisabled},
+	OP_2DIV:               {OP_2DIV, "OP_2DIV", 1, opcodeDisabled},
+	OP_NEGATE:             {OP_NEGATE, "OP_NEGATE", 1, opcodeNegate},
+	OP_ABS:                {OP_ABS, "OP_ABS", 1, opcodeAbs},
+	OP_NOT:                {OP_NOT, "OP_NOT", 1, opcodeNot},
+	OP_0NOTEQUAL:          {OP_0NOTEQUAL, "OP_0NOTEQUAL", 1, opcode0NotEqual},
+	OP_ADD:                {OP_ADD, "OP_ADD", 1, opcodeAdd},
+	OP_SUB:                {OP_SUB, "OP_SUB", 1, opcodeSub},
+	OP_MUL:                {OP_MUL, "OP_MUL", 1, opcodeDisabled},
+	OP_DIV:                {OP_DIV, "OP_DIV", 1, opcodeDisabled},
+	OP_MOD:                {OP_MOD, "OP_MOD", 1, opcodeDisabled},
+	OP_LSHIFT:             {OP_LSHIFT, "OP_LSHIFT", 1, opcodeDisabled},
+	OP_RSHIFT:             {OP_RSHIFT, "OP_RSHIFT", 1, opcodeDisabled},
+	OP_BOOLAND:            {OP_BOOLAND, "OP_BOOLAND", 1, opcodeBoolAnd},
+	OP_BOOLOR:             {OP_BOOLOR, "OP_BOOLOR", 1, opcodeBoolOr},
+	OP_NUMEQUAL:           {OP_NUMEQUAL, "OP_NUMEQUAL", 1, opcodeNumEqual},
+	OP_NUMEQUALVERIFY:     {OP_NUMEQUALVERIFY, "OP_NUMEQUALVERIFY", 1, opcodeNumEqualVerify},
+	OP_NUMNOTEQUAL:        {OP_NUMNOTEQUAL, "OP_NUMNOTEQUAL", 1, opcodeNumNotEqual},
+	OP_LESSTHAN:           {OP_LESSTHAN, "OP_LESSTHAN", 1, opcodeLessThan},
+	OP_GREATERTHAN:        {OP_GREATERTHAN, "OP_GREATERTHAN", 1, opcodeGreaterThan},
+	OP_LESSTHANOREQUAL:    {OP_LESSTHANOREQUAL, "OP_LESSTHANOREQUAL", 1, opcodeLessThanOrEqual},
+	OP_GREATERTHANOREQUAL: {OP_GREATERTHANOREQUAL, "OP_GREATERTHANOREQUAL", 1, opcodeGreaterThanOrEqual},
+	OP_MIN:                {OP_MIN, "OP_MIN", 1, opcodeMin},
+	OP_MAX:                {OP_MAX, "OP_MAX", 1, opcodeMax},
+	OP_WITHIN:             {OP_WITHIN, "OP_WITHIN", 1, opcodeWithin},
+
+	// Crypto opcodes.
+	OP_RIPEMD160:           {OP_RIPEMD160, "OP_RIPEMD160", 1, opcodeRipemd160},
+	OP_SHA1:                {OP_SHA1, "OP_SHA1", 1, opcodeSha1},
+	OP_SHA256:              {OP_SHA256, "OP_SHA256", 1, opcodeSha256},
+	OP_HASH160:             {OP_HASH160, "OP_HASH160", 1, opcodeHash160},
+	OP_HASH256:             {OP_HASH256, "OP_HASH256", 1, opcodeHash256},
+	OP_CODESEPARATOR:       {OP_CODESEPARATOR, "OP_CODESEPARATOR", 1, opcodeCodeSeparator},
+	OP_CHECKSIG:            {OP_CHECKSIG, "OP_CHECKSIG", 1, opcodeCheckSig},
+	OP_CHECKSIGVERIFY:      {OP_CHECKSIGVERIFY, "OP_CHECKSIGVERIFY", 1, opcodeCheckSigVerify},
+	OP_CHECKMULTISIG:       {OP_CHECKMULTISIG, "OP_CHECKMULTISIG", 1, opcodeCheckMultiSig},
+	OP_CHECKMULTISIGVERIFY: {OP_CHECKMULTISIGVERIFY, "OP_CHECKMULTISIGVERIFY", 1, opcodeCheckMultiSigVerify},
+
+	// Reserved opcodes.
+	OP_NOP1:  {OP_NOP1, "OP_NOP1", 1, opcodeNop},
+	OP_NOP2:  {OP_NOP2, "OP_NOP2", 1, opcodeNop},
+	OP_NOP3:  {OP_NOP3, "OP_NOP3", 1, opcodeNop},
+	OP_NOP4:  {OP_NOP4, "OP_NOP4", 1, opcodeNop},
+	OP_NOP5:  {OP_NOP5, "OP_NOP5", 1, opcodeNop},
+	OP_NOP6:  {OP_NOP6, "OP_NOP6", 1, opcodeNop},
+	OP_NOP7:  {OP_NOP7, "OP_NOP7", 1, opcodeNop},
+	OP_NOP8:  {OP_NOP8, "OP_NOP8", 1, opcodeNop},
+	OP_NOP9:  {OP_NOP9, "OP_NOP9", 1, opcodeNop},
+	OP_NOP10: {OP_NOP10, "OP_NOP10", 1, opcodeNop},
+
+	// Undefined opcodes.
+	OP_UNKNOWN186: {OP_UNKNOWN186, "OP_UNKNOWN186", 1, opcodeInvalid},
+	OP_UNKNOWN187: {OP_UNKNOWN187, "OP_UNKNOWN187", 1, opcodeInvalid},
+	OP_UNKNOWN188: {OP_UNKNOWN188, "OP_UNKNOWN188", 1, opcodeInvalid},
+	OP_UNKNOWN189: {OP_UNKNOWN189, "OP_UNKNOWN189", 1, opcodeInvalid},
+	OP_UNKNOWN190: {OP_UNKNOWN190, "OP_UNKNOWN190", 1, opcodeInvalid},
+	OP_UNKNOWN191: {OP_UNKNOWN191, "OP_UNKNOWN191", 1, opcodeInvalid},
+	OP_UNKNOWN192: {OP_UNKNOWN192, "OP_UNKNOWN192", 1, opcodeInvalid},
+	OP_UNKNOWN193: {OP_UNKNOWN193, "OP_UNKNOWN193", 1, opcodeInvalid},
+	OP_UNKNOWN194: {OP_UNKNOWN194, "OP_UNKNOWN194", 1, opcodeInvalid},
+	OP_UNKNOWN195: {OP_UNKNOWN195, "OP_UNKNOWN195", 1, opcodeInvalid},
+	OP_UNKNOWN196: {OP_UNKNOWN196, "OP_UNKNOWN196", 1, opcodeInvalid},
+	OP_UNKNOWN197: {OP_UNKNOWN197, "OP_UNKNOWN197", 1, opcodeInvalid},
+	OP_UNKNOWN198: {OP_UNKNOWN198, "OP_UNKNOWN198", 1, opcodeInvalid},
+	OP_UNKNOWN199: {OP_UNKNOWN199, "OP_UNKNOWN199", 1, opcodeInvalid},
+	OP_UNKNOWN200: {OP_UNKNOWN200, "OP_UNKNOWN200", 1, opcodeInvalid},
+	OP_UNKNOWN201: {OP_UNKNOWN201, "OP_UNKNOWN201", 1, opcodeInvalid},
+	OP_UNKNOWN202: {OP_UNKNOWN202, "OP_UNKNOWN202", 1, opcodeInvalid},
+	OP_UNKNOWN203: {OP_UNKNOWN203, "OP_UNKNOWN203", 1, opcodeInvalid},
+	OP_UNKNOWN204: {OP_UNKNOWN204, "OP_UNKNOWN204", 1, opcodeInvalid},
+	OP_UNKNOWN205: {OP_UNKNOWN205, "OP_UNKNOWN205", 1, opcodeInvalid},
+	OP_UNKNOWN206: {OP_UNKNOWN206, "OP_UNKNOWN206", 1, opcodeInvalid},
+	OP_UNKNOWN207: {OP_UNKNOWN207, "OP_UNKNOWN207", 1, opcodeInvalid},
+	OP_UNKNOWN208: {OP_UNKNOWN208, "OP_UNKNOWN208", 1, opcodeInvalid},
+	OP_UNKNOWN209: {OP_UNKNOWN209, "OP_UNKNOWN209", 1, opcodeInvalid},
+	OP_UNKNOWN210: {OP_UNKNOWN210, "OP_UNKNOWN210", 1, opcodeInvalid},
+	OP_UNKNOWN211: {OP_UNKNOWN211, "OP_UNKNOWN211", 1, opcodeInvalid},
+	OP_UNKNOWN212: {OP_UNKNOWN212, "OP_UNKNOWN212", 1, opcodeInvalid},
+	OP_UNKNOWN213: {OP_UNKNOWN213, "OP_UNKNOWN213", 1, opcodeInvalid},
+	OP_UNKNOWN214: {OP_UNKNOWN214, "OP_UNKNOWN214", 1, opcodeInvalid},
+	OP_UNKNOWN215: {OP_UNKNOWN215, "OP_UNKNOWN215", 1, opcodeInvalid},
+	OP_UNKNOWN216: {OP_UNKNOWN216, "OP_UNKNOWN216", 1, opcodeInvalid},
+	OP_UNKNOWN217: {OP_UNKNOWN217, "OP_UNKNOWN217", 1, opcodeInvalid},
+	OP_UNKNOWN218: {OP_UNKNOWN218, "OP_UNKNOWN218", 1, opcodeInvalid},
+	OP_UNKNOWN219: {OP_UNKNOWN219, "OP_UNKNOWN219", 1, opcodeInvalid},
+	OP_UNKNOWN220: {OP_UNKNOWN220, "OP_UNKNOWN220", 1, opcodeInvalid},
+	OP_UNKNOWN221: {OP_UNKNOWN221, "OP_UNKNOWN221", 1, opcodeInvalid},
+	OP_UNKNOWN222: {OP_UNKNOWN222, "OP_UNKNOWN222", 1, opcodeInvalid},
+	OP_UNKNOWN223: {OP_UNKNOWN223, "OP_UNKNOWN223", 1, opcodeInvalid},
+	OP_UNKNOWN224: {OP_UNKNOWN224, "OP_UNKNOWN224", 1, opcodeInvalid},
+	OP_UNKNOWN225: {OP_UNKNOWN225, "OP_UNKNOWN225", 1, opcodeInvalid},
+	OP_UNKNOWN226: {OP_UNKNOWN226, "OP_UNKNOWN226", 1, opcodeInvalid},
+	OP_UNKNOWN227: {OP_UNKNOWN227, "OP_UNKNOWN227", 1, opcodeInvalid},
+	OP_UNKNOWN228: {OP_UNKNOWN228, "OP_UNKNOWN228", 1, opcodeInvalid},
+	OP_UNKNOWN229: {OP_UNKNOWN229, "OP_UNKNOWN229", 1, opcodeInvalid},
+	OP_UNKNOWN230: {OP_UNKNOWN230, "OP_UNKNOWN230", 1, opcodeInvalid},
+	OP_UNKNOWN231: {OP_UNKNOWN231, "OP_UNKNOWN231", 1, opcodeInvalid},
+	OP_UNKNOWN232: {OP_UNKNOWN232, "OP_UNKNOWN232", 1, opcodeInvalid},
+	OP_UNKNOWN233: {OP_UNKNOWN233, "OP_UNKNOWN233", 1, opcodeInvalid},
+	OP_UNKNOWN234: {OP_UNKNOWN234, "OP_UNKNOWN234", 1, opcodeInvalid},
+	OP_UNKNOWN235: {OP_UNKNOWN235, "OP_UNKNOWN235", 1, opcodeInvalid},
+	OP_UNKNOWN236: {OP_UNKNOWN236, "OP_UNKNOWN236", 1, opcodeInvalid},
+	OP_UNKNOWN237: {OP_UNKNOWN237, "OP_UNKNOWN237", 1, opcodeInvalid},
+	OP_UNKNOWN238: {OP_UNKNOWN238, "OP_UNKNOWN238", 1, opcodeInvalid},
+	OP_UNKNOWN239: {OP_UNKNOWN239, "OP_UNKNOWN239", 1, opcodeInvalid},
+	OP_UNKNOWN240: {OP_UNKNOWN240, "OP_UNKNOWN240", 1, opcodeInvalid},
+	OP_UNKNOWN241: {OP_UNKNOWN241, "OP_UNKNOWN241", 1, opcodeInvalid},
+	OP_UNKNOWN242: {OP_UNKNOWN242, "OP_UNKNOWN242", 1, opcodeInvalid},
+	OP_UNKNOWN243: {OP_UNKNOWN243, "OP_UNKNOWN243", 1, opcodeInvalid},
+	OP_UNKNOWN244: {OP_UNKNOWN244, "OP_UNKNOWN244", 1, opcodeInvalid},
+	OP_UNKNOWN245: {OP_UNKNOWN245, "OP_UNKNOWN245", 1, opcodeInvalid},
+	OP_UNKNOWN246: {OP_UNKNOWN246, "OP_UNKNOWN246", 1, opcodeInvalid},
+	OP_UNKNOWN247: {OP_UNKNOWN247, "OP_UNKNOWN247", 1, opcodeInvalid},
+	OP_UNKNOWN248: {OP_UNKNOWN248, "OP_UNKNOWN248", 1, opcodeInvalid},
+
+	// Bitcoin Core internal use opcode.  Defined here for completeness.
+	OP_SMALLDATA:    {OP_SMALLDATA, "OP_SMALLDATA", 1, opcodeInvalid},
+	OP_SMALLINTEGER: {OP_SMALLINTEGER, "OP_SMALLINTEGER", 1, opcodeInvalid},
+	OP_PUBKEYS:      {OP_PUBKEYS, "OP_PUBKEYS", 1, opcodeInvalid},
+	OP_UNKNOWN252:   {OP_UNKNOWN252, "OP_UNKNOWN252", 1, opcodeInvalid},
+	OP_PUBKEYHASH:   {OP_PUBKEYHASH, "OP_PUBKEYHASH", 1, opcodeInvalid},
+	OP_PUBKEY:       {OP_PUBKEY, "OP_PUBKEY", 1, opcodeInvalid},
+
+	OP_INVALIDOPCODE: {OP_INVALIDOPCODE, "OP_INVALIDOPCODE", 1, opcodeInvalid},
 }
 
 // opcodeOnelineRepls defines opcode names which are replaced when doing a
@@ -1132,8 +884,8 @@ func opcodeNop(op *parsedOpcode, vm *Engine) error {
 	case OP_NOP1, OP_NOP2, OP_NOP3, OP_NOP4, OP_NOP5,
 		OP_NOP6, OP_NOP7, OP_NOP8, OP_NOP9, OP_NOP10:
 		if vm.hasFlag(ScriptDiscourageUpgradableNops) {
-			return fmt.Errorf("%s reserved for soft-fork upgrades",
-				opcodemap[op.opcode.value].name)
+			return fmt.Errorf("OP_NOP%d reserved for soft-fork "+
+				"upgrades", op.opcode.value-OP_NOP1+1)
 		}
 	}
 	return nil
diff --git a/txscript/reference_test.go b/txscript/reference_test.go
index e158406c3..65704af2f 100644
--- a/txscript/reference_test.go
+++ b/txscript/reference_test.go
@@ -56,7 +56,8 @@ func parseShortForm(script string) ([]byte, error) {
 	// 0x14 is OP_DATA_20)
 	// - single quoted strings are pushed as data.
 	// - anything else is an error.
-	for _, op := range opcodemap {
+	for i := range opcodeArray {
+		op := &opcodeArray[i]
 		if op.value < OP_NOP && op.value != OP_RESERVED {
 			continue
 		}
diff --git a/txscript/script.go b/txscript/script.go
index b6302d90a..27ec93001 100644
--- a/txscript/script.go
+++ b/txscript/script.go
@@ -264,21 +264,18 @@ func typeOfScript(pops []parsedOpcode) ScriptClass {
 // parseScript preparses the script in bytes into a list of parsedOpcodes while
 // applying a number of sanity checks.
 func parseScript(script []byte) ([]parsedOpcode, error) {
-	return parseScriptTemplate(script, opcodemap)
+	return parseScriptTemplate(script, &opcodeArray)
 }
 
 // parseScriptTemplate is the same as parseScript but allows the passing of the
 // template list for testing purposes. On error we return the list of parsed
 // opcodes so far.
-func parseScriptTemplate(script []byte, opcodemap map[byte]*opcode) ([]parsedOpcode, error) {
+func parseScriptTemplate(script []byte, opcodes *[256]opcode) ([]parsedOpcode, error) {
 	retScript := make([]parsedOpcode, 0, len(script))
 	for i := 0; i < len(script); {
 		instr := script[i]
-		op, ok := opcodemap[instr]
-		if !ok {
-			return retScript, ErrStackInvalidOpcode
-		}
-		pop := parsedOpcode{opcode: op}
+		op := opcodes[instr]
+		pop := parsedOpcode{opcode: &op}
 		// parse data out of instruction.
 		switch {
 		case op.length == 1: