vm: implement new PUSH opcodes

2024-12-22 19:19:09 +00:00 · 2020-04-21 16:45:48 +03:00 · 2020-04-21 16:45:48 +03:00 · 008e6eb233
commit 008e6eb233
parent 2c39e6fcec
37 changed files with 453 additions and 596 deletions
--- a/.docker/wallets/wallet1.json
+++ b/.docker/wallets/wallet1.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AQyx83BYr1PkyYhZhUAogaHdhkLVHn6htY",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "ASW1VhcukJRrukCXRipY4BE9d9zy4mAYsR",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "4c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc250680a906ad4",
+        "script": "0c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/.docker/wallets/wallet1_solo.json
+++ b/.docker/wallets/wallet1_solo.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AQyx83BYr1PkyYhZhUAogaHdhkLVHn6htY",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "ASW1VhcukJRrukCXRipY4BE9d9zy4mAYsR",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "4c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc250680a906ad4",
+        "script": "0c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
@ -44,11 +44,11 @@
      "isDefault": false
    },
    {
-      "address": "Ab3TJfgpa94yDr1WPeXpYQiChTRohBJ6T5",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "ANg3mmstMr7qtY8TgdKM777WSLKCNFbawM",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "514c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc25150683073b3bb",
+        "script": "110c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc2110b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/.docker/wallets/wallet2.json
+++ b/.docker/wallets/wallet2.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AdB6ayKfBRJZasiXX4JL5N2YtmxftNp1b3",
-      "key": "6PYXPEFeBxeDjqMiwRrSe81LnpL1cpw1WSwENJY1p4NtgSbfZPaUFy8Kkg",
+      "address": "Aaidx8VxYVjpD6knF8toWG7WquQjQFWcZB",
+      "key": "6PYMZM16cgdQ9GH5ejEPFqehuZ3Lp16W4fW7LyoBdUuVyeMeom7z8wP5QV",
      "label": "",
      "contract": {
-        "script": "4c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e50680a906ad4",
+        "script": "0c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYXPEFeBxeDjqMiwRrSe81LnpL1cpw1WSwENJY1p4NtgSbfZPaUFy8Kkg",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYMZM16cgdQ9GH5ejEPFqehuZ3Lp16W4fW7LyoBdUuVyeMeom7z8wP5QV",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/.docker/wallets/wallet3.json
+++ b/.docker/wallets/wallet3.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AbJTkhSMjJnm2CHZbCUe5j8w2xzjDbeWM8",
-      "key": "6PYRHjZrvxYqrHLpXz1aP6dBnrFkkxQMCdYsJi7YDPoQnQddvRuTzKGxME",
+      "address": "Ae6y4Jx6rjwGu6Vtf6y1piTN3dnhCs6Gp4",
+      "key": "6PYSeHjvJFBn4FVccKHtaq2Hrvqa3aj9EDq5XSnWszvagRyxRmmRijqV6r",
      "label": "",
      "contract": {
-        "script": "4c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee69950680a906ad4",
+        "script": "0c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6990b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYRHjZrvxYqrHLpXz1aP6dBnrFkkxQMCdYsJi7YDPoQnQddvRuTzKGxME",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYSeHjvJFBn4FVccKHtaq2Hrvqa3aj9EDq5XSnWszvagRyxRmmRijqV6r",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/.docker/wallets/wallet4.json
+++ b/.docker/wallets/wallet4.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AT7C1Jno1CtJTYzA6MH8HpfYYso1RiES8q",
-      "key": "6PYWscJHQ76uctwuM7GRcAp6xfGjdYDKnbMtMnT6hcXxcNn7CywbQmvfSy",
+      "address": "ANysJU18KPh6jBBcrGby9bPAHxFmAeL1q3",
+      "key": "6PYNWeXTgyP88XsqDLUdjnCNHypSD8wYLURE78226LU9gYNiSGL1grjFC9",
      "label": "",
      "contract": {
-        "script": "4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd6250680a906ad4",
+        "script": "0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYWscJHQ76uctwuM7GRcAp6xfGjdYDKnbMtMnT6hcXxcNn7CywbQmvfSy",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYNWeXTgyP88XsqDLUdjnCNHypSD8wYLURE78226LU9gYNiSGL1grjFC9",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/pkg/consensus/consensus.go
+++ b/pkg/consensus/consensus.go
@ -16,9 +16,10 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/core/mempool"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
+	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
 	"github.com/nspcc-dev/neo-go/pkg/util"
-	"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
+	"github.com/nspcc-dev/neo-go/pkg/vm/emit"
 	"github.com/nspcc-dev/neo-go/pkg/wallet"
 	"go.uber.org/zap"
 )
@ -394,17 +395,16 @@ func (s *service) getBlockWitness(b *coreb.Block) *transaction.Witness {

 	sort.Sort(keys.PublicKeys(pubs))

-	var invoc []byte
+	buf := io.NewBufBinWriter()
 	for i, j := 0, 0; i < len(pubs) && j < m; i++ {
 		if sig, ok := sigs[pubs[i]]; ok {
-			invoc = append(invoc, byte(opcode.PUSHBYTES64))
-			invoc = append(invoc, sig...)
+			emit.Bytes(buf.BinWriter, sig)
 			j++
 		}
 	}

 	return &transaction.Witness{
-		InvocationScript:   invoc,
+		InvocationScript:   buf.Bytes(),
 		VerificationScript: verif,
 	}
 }
--- a/pkg/consensus/consensus_test.go
+++ b/pkg/consensus/consensus_test.go
@ -11,9 +11,10 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/internal/testchain"
+	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
 	"github.com/nspcc-dev/neo-go/pkg/util"
-	"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
+	"github.com/nspcc-dev/neo-go/pkg/vm/emit"
 	"github.com/nspcc-dev/neo-go/pkg/wallet"
 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap/zaptest"
@ -249,14 +250,14 @@ func signTx(t *testing.T, txs ...*transaction.Transaction) {
 	for _, tx := range txs {
 		data := tx.GetSignedPart()

-		var invoc []byte
+		buf := io.NewBufBinWriter()
 		for _, key := range privNetKeys {
 			signature := key.Sign(data)
-			invoc = append(invoc, append([]byte{byte(opcode.PUSHBYTES64)}, signature...)...)
+			emit.Bytes(buf.BinWriter, signature)
 		}

 		tx.Scripts = []transaction.Witness{{
-			InvocationScript:   invoc,
+			InvocationScript:   buf.Bytes(),
 			VerificationScript: rawScript,
 		}}
 	}
--- a/pkg/consensus/payload.go
+++ b/pkg/consensus/payload.go
@ -12,7 +12,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm"
-	"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
+	"github.com/nspcc-dev/neo-go/pkg/vm/emit"
 	"github.com/pkg/errors"
 )

@ -192,7 +192,9 @@ func (p *Payload) Sign(key *privateKey) error {
 		return err
 	}

-	p.Witness.InvocationScript = append([]byte{byte(opcode.PUSHBYTES64)}, sig...)
+	buf := io.NewBufBinWriter()
+	emit.Bytes(buf.BinWriter, sig)
+	p.Witness.InvocationScript = buf.Bytes()
 	p.Witness.VerificationScript = key.PublicKey().GetVerificationScript()

 	return nil
--- a/pkg/consensus/testdata/wallet1.json
+++ b/pkg/consensus/testdata/wallet1.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AQyx83BYr1PkyYhZhUAogaHdhkLVHn6htY",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "ASW1VhcukJRrukCXRipY4BE9d9zy4mAYsR",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "4c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc250680a906ad4",
+        "script": "0c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/pkg/consensus/testdata/wallet2.json
+++ b/pkg/consensus/testdata/wallet2.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AdB6ayKfBRJZasiXX4JL5N2YtmxftNp1b3",
-      "key": "6PYXPEFeBxeDjqMiwRrSe81LnpL1cpw1WSwENJY1p4NtgSbfZPaUFy8Kkg",
+      "address": "Aaidx8VxYVjpD6knF8toWG7WquQjQFWcZB",
+      "key": "6PYMZM16cgdQ9GH5ejEPFqehuZ3Lp16W4fW7LyoBdUuVyeMeom7z8wP5QV",
      "label": "",
      "contract": {
-        "script": "4c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e50680a906ad4",
+        "script": "0c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYXPEFeBxeDjqMiwRrSe81LnpL1cpw1WSwENJY1p4NtgSbfZPaUFy8Kkg",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYMZM16cgdQ9GH5ejEPFqehuZ3Lp16W4fW7LyoBdUuVyeMeom7z8wP5QV",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/pkg/consensus/testdata/wallet3.json
+++ b/pkg/consensus/testdata/wallet3.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AbJTkhSMjJnm2CHZbCUe5j8w2xzjDbeWM8",
-      "key": "6PYRHjZrvxYqrHLpXz1aP6dBnrFkkxQMCdYsJi7YDPoQnQddvRuTzKGxME",
+      "address": "Ae6y4Jx6rjwGu6Vtf6y1piTN3dnhCs6Gp4",
+      "key": "6PYSeHjvJFBn4FVccKHtaq2Hrvqa3aj9EDq5XSnWszvagRyxRmmRijqV6r",
      "label": "",
      "contract": {
-        "script": "4c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee69950680a906ad4",
+        "script": "0c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6990b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYRHjZrvxYqrHLpXz1aP6dBnrFkkxQMCdYsJi7YDPoQnQddvRuTzKGxME",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYSeHjvJFBn4FVccKHtaq2Hrvqa3aj9EDq5XSnWszvagRyxRmmRijqV6r",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/pkg/consensus/testdata/wallet4.json
+++ b/pkg/consensus/testdata/wallet4.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AT7C1Jno1CtJTYzA6MH8HpfYYso1RiES8q",
-      "key": "6PYWscJHQ76uctwuM7GRcAp6xfGjdYDKnbMtMnT6hcXxcNn7CywbQmvfSy",
+      "address": "ANysJU18KPh6jBBcrGby9bPAHxFmAeL1q3",
+      "key": "6PYNWeXTgyP88XsqDLUdjnCNHypSD8wYLURE78226LU9gYNiSGL1grjFC9",
      "label": "",
      "contract": {
-        "script": "4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd6250680a906ad4",
+        "script": "0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYWscJHQ76uctwuM7GRcAp6xfGjdYDKnbMtMnT6hcXxcNn7CywbQmvfSy",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYNWeXTgyP88XsqDLUdjnCNHypSD8wYLURE78226LU9gYNiSGL1grjFC9",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/pkg/core/helper_test.go
+++ b/pkg/core/helper_test.go
@ -71,7 +71,7 @@ func newBlock(cfg config.ProtocolConfiguration, index uint32, prev util.Uint256,
 	}
 	_ = b.RebuildMerkleRoot()

-	invScript := make([]byte, 0)
+	buf := io.NewBufBinWriter()
 	for i := 0; i < testchain.Size(); i++ {
 		pKey := testchain.PrivateKey(i)
 		b := b.GetSignedPart()
@ -79,10 +79,9 @@ func newBlock(cfg config.ProtocolConfiguration, index uint32, prev util.Uint256,
 		if len(sig) != 64 {
 			panic("wrong signature length")
 		}
-		invScript = append(invScript, byte(opcode.PUSHBYTES64))
-		invScript = append(invScript, sig...)
+		emit.Bytes(buf.BinWriter, sig)
 	}
-	b.Script.InvocationScript = invScript
+	b.Script.InvocationScript = buf.Bytes()
 	return b
 }

@ -159,7 +158,9 @@ func newDumbBlock() *block.Block {

 func getInvocationScript(data []byte, priv *keys.PrivateKey) []byte {
 	signature := priv.Sign(data)
-	return append([]byte{byte(opcode.PUSHBYTES64)}, signature...)
+	buf := io.NewBufBinWriter()
+	emit.Bytes(buf.BinWriter, signature)
+	return buf.Bytes()
 }

 // This function generates "../rpc/testdata/testblocks.acc" file which contains data
--- a/pkg/core/util.go
+++ b/pkg/core/util.go
@ -45,7 +45,7 @@ func createGenesisBlock(cfg config.ProtocolConfiguration) (*block.Block, error)
 		NextConsensus: nextConsensus,
 		Script: transaction.Witness{
 			InvocationScript:   []byte{},
-			VerificationScript: []byte{byte(opcode.PUSHT)},
+			VerificationScript: []byte{byte(opcode.OLDPUSH1)},
 		},
 	}

@ -64,7 +64,7 @@ func createGenesisBlock(cfg config.ProtocolConfiguration) (*block.Block, error)
 	issueTx := transaction.NewIssueTX()
 	// TODO NEO3.0: nonce should be constant to avoid variability of genesis block
 	issueTx.Nonce = 0
-	issueTx.Sender = hash.Hash160([]byte{byte(opcode.PUSH1)})
+	issueTx.Sender = hash.Hash160([]byte{byte(opcode.OLDPUSH1)})
 	issueTx.Outputs = []transaction.Output{
 		{
 			AssetID:    governingTokenTX.Hash(),
@ -75,7 +75,7 @@ func createGenesisBlock(cfg config.ProtocolConfiguration) (*block.Block, error)
 	issueTx.Scripts = []transaction.Witness{
 		{
 			InvocationScript:   []byte{},
-			VerificationScript: []byte{byte(opcode.PUSHT)},
+			VerificationScript: []byte{byte(opcode.OLDPUSH1)},
 		},
 	}

@ -97,7 +97,7 @@ func createGenesisBlock(cfg config.ProtocolConfiguration) (*block.Block, error)
 }

 func init() {
-	admin := hash.Hash160([]byte{byte(opcode.PUSHT)})
+	admin := hash.Hash160([]byte{byte(opcode.OLDPUSH1)})
 	registerTX := &transaction.RegisterTX{
 		AssetType: transaction.GoverningToken,
 		Name:      "[{\"lang\":\"zh-CN\",\"name\":\"小蚁股\"},{\"lang\":\"en\",\"name\":\"AntShare\"}]",
@ -109,9 +109,9 @@ func init() {
 	governingTokenTX = *transaction.NewRegisterTX(registerTX)
 	// TODO NEO3.0: nonce should be constant to avoid variability of token hash
 	governingTokenTX.Nonce = 0
-	governingTokenTX.Sender = hash.Hash160([]byte{byte(opcode.PUSH1)})
+	governingTokenTX.Sender = hash.Hash160([]byte{byte(opcode.OLDPUSH1)})

-	admin = hash.Hash160([]byte{byte(opcode.PUSHF)})
+	admin = hash.Hash160([]byte{0x00})
 	registerTX = &transaction.RegisterTX{
 		AssetType: transaction.UtilityToken,
 		Name:      "[{\"lang\":\"zh-CN\",\"name\":\"小蚁币\"},{\"lang\":\"en\",\"name\":\"AntCoin\"}]",
@ -122,7 +122,7 @@ func init() {
 	utilityTokenTX = *transaction.NewRegisterTX(registerTX)
 	// TODO NEO3.0: nonce should be constant to avoid variability of token hash
 	utilityTokenTX.Nonce = 0
-	utilityTokenTX.Sender = hash.Hash160([]byte{byte(opcode.PUSH1)})
+	utilityTokenTX.Sender = hash.Hash160([]byte{byte(opcode.OLDPUSH1)})
 }

 // GoverningTokenID returns the governing token (NEO) hash.
--- a/pkg/core/util_test.go
+++ b/pkg/core/util_test.go
@ -20,14 +20,14 @@ func TestGenesisBlockMainNet(t *testing.T) {
 	// have been changed. Consequently, hash of the genesis block has been changed.
 	// Update expected genesis block hash for better times.
 	// Old hash is "d42561e3d30e15be6400b6df2f328e02d2bf6354c41dce433bc57687c82144bf"
-	expect := "8b247d93f1f2cba80f0908c65f94c74d17bbadefc27c7afdee5b5b078ed6ed55"
+	expect := "931161239581bcd90b73d092483dee6b7bf2162e66df7e15c3a276a22b4c9422"
 	assert.Equal(t, expect, block.Hash().StringLE())
 }

 func TestGetConsensusAddressMainNet(t *testing.T) {
 	var (
-		consensusAddr   = "ASwdHjdAGfmSDuZbr641W1eYFVugjByJAS"
-		consensusScript = "7a818ecc4582f8526e7c4271a690c04bd3b9e017"
+		consensusAddr   = "APtiVEdLi5GEmQ8CL5RcCE7BNcsPsxeXh7"
+		consensusScript = "590c459950f1d83e67ee11fcef202a6ebb8b1a77"
 	)

 	cfg, err := config.Load("../../config", config.ModeMainNet)
--- a/pkg/crypto/keys/publickey.go
+++ b/pkg/crypto/keys/publickey.go
@ -232,8 +232,7 @@ func (p *PublicKey) EncodeBinary(w *io.BinWriter) {
 func (p *PublicKey) GetVerificationScript() []byte {
 	b := p.Bytes()
 	buf := io.NewBufBinWriter()
-	emit.Instruction(buf.BinWriter, opcode.PUSHDATA1, []byte{33})
-	buf.BinWriter.WriteBytes(b)
+	emit.Bytes(buf.BinWriter, b)
 	emit.Opcode(buf.BinWriter, opcode.PUSHNULL)
 	emit.Syscall(buf.BinWriter, "Neo.Crypto.ECDsaVerify")

--- a/pkg/crypto/keys/publickey_test.go
+++ b/pkg/crypto/keys/publickey_test.go
@ -89,7 +89,7 @@ func TestPubkeyToAddress(t *testing.T) {
 	pubKey, err := NewPublicKeyFromString("031ee4e73a17d8f76dc02532e2620bcb12425b33c0c9f9694cc2caa8226b68cad4")
 	require.NoError(t, err)
 	actual := pubKey.Address()
-	expected := "Ads7RRw2vS2jfRypVbMUGt22pxaDaojJHs"
+	expected := "AbjmXh5RXBMvzYcv7LCmUgrX4sWk1QBJMK"
 	require.Equal(t, expected, actual)
 }

--- a/pkg/internal/keytestcases/testcases.go
+++ b/pkg/internal/keytestcases/testcases.go
@ -14,28 +14,28 @@ type Ktype struct {
 // Arr contains a set of known keys in Ktype format.
 var Arr = []Ktype{
 	{
-		Address:      "Ac5bo2k5rKFvYzCZaTqUG6xFe6iXuW9xQs",
+		Address:      "AZdm8Dt15QFTrYkMYRrZsTmpx4jbeLtPFj",
 		PrivateKey:   "7d128a6d096f0c14c3a25a2b0c41cf79661bfcb4a8cc95aaaea28bde4d732344",
 		PublicKey:    "02028a99826edc0c97d18e22b6932373d908d323aa7f92656a77ec26e8861699ef",
 		Wif:          "L1QqQJnpBwbsPGAuutuzPTac8piqvbR1HRjrY5qHup48TBCBFe4g",
 		Passphrase:   "city of zion",
-		EncryptedWif: "6PYKSxMYzHGuiT3iK7kkeGqn3Q6hJnHUc3U3Hro2kb1rPC7G15Eg2GnqL7",
+		EncryptedWif: "6PYRQrhDFP6hM7Pb4cqJ7T1Erh1XabLDEs42fENU4Htvsdgt6SmShDbCLR",
 	},
 	{
-		Address:      "ATKoxGh7rytJRr96XWkvs3shMM5uiiHjhg",
+		Address:      "AHPNXvNiGGx43DBTEs9j1z9CjYSSC11jpe",
 		PrivateKey:   "9ab7e154840daca3a2efadaf0df93cd3a5b51768c632f5433f86909d9b994a69",
 		PublicKey:    "031d8e1630ce640966967bc6d95223d21f44304133003140c3b52004dc981349c9",
 		Wif:          "L2QTooFoDFyRFTxmtiVHt5CfsXfVnexdbENGDkkrrgTTryiLsPMG",
 		Passphrase:   "我的密码",
-		EncryptedWif: "6PYQYBtL2kifXe3Dv96pMoPNJ2fZz8cPv2YqpHGKdfM2g5swEBUdwJqKsu",
+		EncryptedWif: "6PYKuvXj1Yq9ZjsVNVyNrAHVHrAqg6BLxUoTdpZX5NFkG5Akq79dPYYm7c",
 	},
 	{
-		Address:      "AbjLAUABpmvLAJv4brQ7pt4QG87qy8K75T",
+		Address:      "AGo5guykksq8uRxfWyC8dAnTMoz62yUWcn",
 		PrivateKey:   "3edee7036b8fd9cef91de47386b191dd76db2888a553e7736bb02808932a915b",
 		PublicKey:    "02232ce8d2e2063dce0451131851d47421bfc4fc1da4db116fca5302c0756462fa",
 		Wif:          "KyKvWLZsNwBJx5j9nurHYRwhYfdQUu9tTEDsLCUHDbYBL8cHxMiG",
 		Passphrase:   "MyL33tP@33w0rd",
-		EncryptedWif: "6PYMbnB7h7SjueFXUMUiGptmvMXZKLALSsCnuaotBEAnmv5fXiYh7vReBA",
+		EncryptedWif: "6PYQUTBmYbWZukmBTuvTkbjSmz7m5XkEzsyJBk32ZhvC7AbVUpArb1yeMv",
 	},
 	{
 		Address:      "xdf4UGKevVrMR1j3UkPsuoYKSC4ocoAkKx",
@ -43,7 +43,7 @@ var Arr = []Ktype{
 		PublicKey:    "zz232ce8d2e2063dce0451131851d47421bfc4fc1da4db116fca5302c0756462fa",
 		Wif:          "zzKvWLZsNwBJx5j9nurHYRwhYfdQUu9tTEDsLCUHDbYBL8cHxMiG",
 		Passphrase:   "zzL33tP@33w0rd",
-		EncryptedWif: "6PYMbnB7h7SjueFXUMUiGptmvMXZKLALSsCnuaotBEAnmv5fXiYh7vReBA",
+		EncryptedWif: "6PYQUTBmYbWZukmBTuvTkbjSmz7m5XkEzsyJBk32ZhvC7AbVUpArb1yeMv",
 		Invalid:      true,
 	},
 }
--- a/pkg/rpc/request/tx_builder_test.go
+++ b/pkg/rpc/request/tx_builder_test.go
@ -22,40 +22,40 @@ func TestInvocationScriptCreationGood(t *testing.T) {
 		script: "676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "transfer"}},
-		script: "087472616e73666572676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "0c087472616e73666572676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: NumberT, Value: 42}},
-		script: "023432676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "0c023432676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{}}},
-		script: "00c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "10c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{{Type: FuncParamT, Value: FuncParam{Type: smartcontract.ByteArrayType, Value: Param{Type: StringT, Value: "50befd26fdf6e4d957c11e078b24ebce6291456f"}}}}}},
-		script: "1450befd26fdf6e4d957c11e078b24ebce6291456f51c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "0c1450befd26fdf6e4d957c11e078b24ebce6291456f11c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{{Type: FuncParamT, Value: FuncParam{Type: smartcontract.SignatureType, Value: Param{Type: StringT, Value: "4edf5005771de04619235d5a4c7a9a11bb78e008541f1da7725f654c33380a3c87e2959a025da706d7255cb3a3fa07ebe9c6559d0d9e6213c68049168eb1056f"}}}}}},
-		script: "404edf5005771de04619235d5a4c7a9a11bb78e008541f1da7725f654c33380a3c87e2959a025da706d7255cb3a3fa07ebe9c6559d0d9e6213c68049168eb1056f51c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "0c404edf5005771de04619235d5a4c7a9a11bb78e008541f1da7725f654c33380a3c87e2959a025da706d7255cb3a3fa07ebe9c6559d0d9e6213c68049168eb1056f11c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{{Type: FuncParamT, Value: FuncParam{Type: smartcontract.StringType, Value: Param{Type: StringT, Value: "50befd26fdf6e4d957c11e078b24ebce6291456f"}}}}}},
-		script: "283530626566643236666466366534643935376331316530373862323465626365363239313435366651c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "0c283530626566643236666466366534643935376331316530373862323465626365363239313435366611c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{{Type: FuncParamT, Value: FuncParam{Type: smartcontract.Hash160Type, Value: Param{Type: StringT, Value: "50befd26fdf6e4d957c11e078b24ebce6291456f"}}}}}},
-		script: "146f459162ceeb248b071ec157d9e4f6fd26fdbe5051c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "0c146f459162ceeb248b071ec157d9e4f6fd26fdbe5011c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{{Type: FuncParamT, Value: FuncParam{Type: smartcontract.Hash256Type, Value: Param{Type: StringT, Value: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7"}}}}}},
-		script: "20e72d286979ee6cb1b7e65dfddfb2e384100b8d148e7758de42e4168b71792c6051c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "0c20e72d286979ee6cb1b7e65dfddfb2e384100b8d148e7758de42e4168b71792c6011c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{{Type: FuncParamT, Value: FuncParam{Type: smartcontract.PublicKeyType, Value: Param{Type: StringT, Value: "03c089d7122b840a4935234e82e26ae5efd0c2acb627239dc9f207311337b6f2c1"}}}}}},
-		script: "2103c089d7122b840a4935234e82e26ae5efd0c2acb627239dc9f207311337b6f2c151c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "0c2103c089d7122b840a4935234e82e26ae5efd0c2acb627239dc9f207311337b6f2c111c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{{Type: FuncParamT, Value: FuncParam{Type: smartcontract.IntegerType, Value: Param{Type: NumberT, Value: 42}}}}}},
-		script: "012a51c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "002a11c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{{Type: FuncParamT, Value: FuncParam{Type: smartcontract.BoolType, Value: Param{Type: StringT, Value: "true"}}}}}},
-		script: "5151c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "1111c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}, {
 		ps:     Params{{Type: StringT, Value: "a"}, {Type: ArrayT, Value: []Param{{Type: FuncParamT, Value: FuncParam{Type: smartcontract.BoolType, Value: Param{Type: StringT, Value: "false"}}}}}},
-		script: "0051c10161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
+		script: "1011c10c0161676f459162ceeb248b071ec157d9e4f6fd26fdbe50",
 	}}
 	for _, ps := range paramScripts {
 		script, err := CreateFunctionInvocationScript(contract, ps.ps)
--- a/pkg/rpc/server/server_test.go
+++ b/pkg/rpc/server/server_test.go
@ -44,18 +44,18 @@ type rpcTestCase struct {
 	check  func(t *testing.T, e *executor, result interface{})
 }

-const testContractHash = "1b5cbfaa2e54b584d3240e38fc4bd413a65ea40c"
+const testContractHash = "8bb068bca226bf013e7d19400b9d85c4eb865607"

 var rpcTestCases = map[string][]rpcTestCase{
 	"getapplicationlog": {
 		{
 			name:   "positive",
-			params: `["af51984d1dbec1557c9c14d8d404ff35015e53255d53e8c7f55088a74ecc399b"]`,
+			params: `["66238fd4ac778326b0c151c025ee8f1c6d738e7e191820537564d2b887f3ecde"]`,
 			result: func(e *executor) interface{} { return &result.ApplicationLog{} },
 			check: func(t *testing.T, e *executor, acc interface{}) {
 				res, ok := acc.(*result.ApplicationLog)
 				require.True(t, ok)
-				expectedTxHash, err := util.Uint256DecodeStringLE("af51984d1dbec1557c9c14d8d404ff35015e53255d53e8c7f55088a74ecc399b")
+				expectedTxHash, err := util.Uint256DecodeStringLE("66238fd4ac778326b0c151c025ee8f1c6d738e7e191820537564d2b887f3ecde")
 				require.NoError(t, err)
 				assert.Equal(t, expectedTxHash, res.TxHash)
 				assert.Equal(t, 1, len(res.Executions))
@ -404,25 +404,25 @@ var rpcTestCases = map[string][]rpcTestCase{
 	"getblockheader": {
 		{
 			name:   "positive, no verbose",
-			params: `["ad185bb609f95fd709b6a9cce9f67ee636c4acdac9afcafb26209d922a889958"]`,
+			params: `["8c702625ab05236fda5763bbe168359b7747508e1387e4404217e0418846c94e"]`,
 			result: func(e *executor) interface{} {
-				expected := "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"
+				expected := "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"
 				return &expected
 			},
 		},
 		{
 			name:   "positive, verbose 0",
-			params: `["ad185bb609f95fd709b6a9cce9f67ee636c4acdac9afcafb26209d922a889958", 0]`,
+			params: `["8c702625ab05236fda5763bbe168359b7747508e1387e4404217e0418846c94e", 0]`,
 			result: func(e *executor) interface{} {
-				expected := "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"
+				expected := "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"
 				return &expected
 			},
 		},
 		{
 			name:   "positive, verbose !=0",
-			params: `["ad185bb609f95fd709b6a9cce9f67ee636c4acdac9afcafb26209d922a889958", 2]`,
+			params: `["8c702625ab05236fda5763bbe168359b7747508e1387e4404217e0418846c94e", 2]`,
 			result: func(e *executor) interface{} {
-				hash, err := util.Uint256DecodeStringLE("ad185bb609f95fd709b6a9cce9f67ee636c4acdac9afcafb26209d922a889958")
+				hash, err := util.Uint256DecodeStringLE("8c702625ab05236fda5763bbe168359b7747508e1387e4404217e0418846c94e")
 				if err != nil {
 					panic("can not decode hash parameter")
 				}
@ -519,7 +519,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 			params: `["` + testchain.MultisigAddress() + `"]`,
 			result: func(*executor) interface{} {
 				// hash of the issueTx
-				h, _ := util.Uint256DecodeStringBE("4cccf8f1a4cfa9ebd9344c312f8220199ee9000f14cb951f677601d208aa5af0")
+				h, _ := util.Uint256DecodeStringBE("8a4711012932f4f79f9534803feab0ef85e7a313c52a36f5d56b9f8ec190bd92")
 				amount := util.Fixed8FromInt64(1 * 8) // (endHeight - startHeight) * genAmount[0]
 				return &result.ClaimableInfo{
 					Spents: []result.Claimable{
@ -578,7 +578,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 	"gettransactionheight": {
 		{
 			name:   "positive",
-			params: `["865469df8fab5f665b37c67de3beba832fa17b27675d4ac2eec0d60ce40f42fd"]`,
+			params: `["5f1e841f625d52dd3d73bbf5203f8468835353b7c476a4d367161ea959944981"]`,
 			result: func(e *executor) interface{} {
 				h := 1
 				return &h
@ -693,7 +693,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 			check: func(t *testing.T, e *executor, inv interface{}) {
 				res, ok := inv.(*result.Invoke)
 				require.True(t, ok)
-				assert.Equal(t, "06717765727479676f459162ceeb248b071ec157d9e4f6fd26fdbe50", res.Script)
+				assert.Equal(t, "0c06717765727479676f459162ceeb248b071ec157d9e4f6fd26fdbe50", res.Script)
 				assert.NotEqual(t, "", res.State)
 				assert.NotEqual(t, 0, res.GasConsumed)
 			},
@ -790,7 +790,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 	"sendrawtransaction": {
 		{
 			name:   "positive",
-			params: `["8000130000006501dbe71845f26f6b4d848b034d624eeda7bbc4b00400000001d41146fbea5a066daa8ff358822fba2b5a60d0b554feccb5ee54cedbdb86315c010001f5bc5a9ac7b85a47be381260a06b5a1e7a667ce8f7d7c8baa5cfc6465571377a0030d3dec38623006501dbe71845f26f6b4d848b034d624eeda7bbc40141402ddc9a3b036932fa42df8e97f7fe713e2c673060d1d4134ce93e35da790b98bd744beb7a37d515371929f98ee2642699303856ea603d1d68fc157174aa586671294c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc250680a906ad4"]`,
+			params: `["80001300000075a94799633ed955dd85a8af314a5b435ab51903b00400000001eb15931b0544cbb9a283f934ab89a23e73cf90b9ca097bb327a0bcdcddf8ce2e010001f5bc5a9ac7b85a47be381260a06b5a1e7a667ce8f7d7c8baa5cfc6465571377a0030d3dec386230075a94799633ed955dd85a8af314a5b435ab5190301420c4082632495e555507a056eae951ad1893f27163dde40505340f6cf9578e20c3d7ec0c7e00f93cb2e770a7ce3e8a2910deabdd01fd966507a7a29106dd2add583ee290c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20b680a906ad4"]`,
 			result: func(e *executor) interface{} {
 				v := true
 				return &v
@ -821,7 +821,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 		{
 			// If you are planning to modify test chain from `testblocks.acc`, please, update param value (first block)
 			name:   "empty block",
-			params: `["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"]`,
+			params: `["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"]`,
 			fail:   true,
 		},
 		{
@ -847,7 +847,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 		{
 			name: "positive",
 			// If you are planning to modify test chain from `testblocks.acc`, please, update param value (second block)
-			params: `["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"]`,
+			params: `["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"]`,
 			result: func(e *executor) interface{} {
 				v := true
 				return &v
--- a/pkg/rpc/server/testdata/test_contract.avm
+++ b/pkg/rpc/server/testdata/test_contract.avm
--- a/pkg/rpc/server/testdata/testblocks.acc
+++ b/pkg/rpc/server/testdata/testblocks.acc
--- a/pkg/smartcontract/contract.go
+++ b/pkg/smartcontract/contract.go
@ -26,8 +26,7 @@ func CreateMultiSigRedeemScript(m int, publicKeys keys.PublicKeys) ([]byte, erro
 	emit.Int(buf.BinWriter, int64(m))
 	sort.Sort(publicKeys)
 	for _, pubKey := range publicKeys {
-		emit.Instruction(buf.BinWriter, opcode.PUSHDATA1, []byte{33})
-		buf.BinWriter.WriteBytes(pubKey.Bytes())
+		emit.Bytes(buf.BinWriter, pubKey.Bytes())
 	}
 	emit.Int(buf.BinWriter, int64(len(publicKeys)))
 	emit.Opcode(buf.BinWriter, opcode.PUSHNULL)
--- a/pkg/vm/context.go
+++ b/pkg/vm/context.go
@ -108,8 +108,8 @@ func (c *Context) Next() (opcode.Opcode, []byte, error) {
 	case opcode.CALLE, opcode.CALLET:
 		numtoread = 22
 	default:
-		if instr >= opcode.PUSHBYTES1 && instr <= opcode.PUSHBYTES75 {
-			numtoread = int(instr)
+		if instr <= opcode.PUSHINT256 {
+			numtoread = 1 << instr
 		} else {
 			// No parameters, can just return.
 			return instr, nil, nil
--- a/pkg/vm/contract_checks.go
+++ b/pkg/vm/contract_checks.go
@ -15,16 +15,15 @@ var (
 func getNumOfThingsFromInstr(instr opcode.Opcode, param []byte) (int, bool) {
 	var nthings int

-	switch instr {
-	case opcode.PUSH1, opcode.PUSH2, opcode.PUSH3, opcode.PUSH4,
-		opcode.PUSH5, opcode.PUSH6, opcode.PUSH7, opcode.PUSH8,
-		opcode.PUSH9, opcode.PUSH10, opcode.PUSH11, opcode.PUSH12,
-		opcode.PUSH13, opcode.PUSH14, opcode.PUSH15, opcode.PUSH16:
+	switch {
+	case opcode.PUSH1 <= instr && instr <= opcode.PUSH16:
 		nthings = int(instr-opcode.PUSH1) + 1
-	case opcode.PUSHBYTES1:
-		nthings = int(param[0])
-	case opcode.PUSHBYTES2:
-		nthings = int(binary.LittleEndian.Uint16(param))
+	case instr <= opcode.PUSHINT256:
+		n := emit.BytesToInt(param)
+		if !n.IsInt64() || n.Int64() > MaxArraySize {
+			return 0, false
+		}
+		nthings = int(n.Int64())
 	default:
 		return 0, false
 	}
--- a/pkg/vm/emit/bigint.go
+++ b/pkg/vm/emit/bigint.go
@ -84,9 +84,13 @@ func getEffectiveSize(buf []byte, isNeg bool) int {
 //   when n == 0. For zero is equal to empty slice in NEO3.
 // https://github.com/neo-project/neo-vm/blob/master/src/neo-vm/Types/Integer.cs#L16
 func IntToBytes(n *big.Int) []byte {
+	return intToBytes(n, []byte{})
+}
+
+func intToBytes(n *big.Int, data []byte) []byte {
 	sign := n.Sign()
 	if sign == 0 {
-		return []byte{}
+		return data
 	}

 	var ws []big.Word
@ -95,13 +99,19 @@ func IntToBytes(n *big.Int) []byte {
 	} else {
 		n1 := new(big.Int).Add(n, big.NewInt(1))
 		if n1.Sign() == 0 { // n == -1
-			return []byte{0xFF}
+			return append(data, 0xFF)
 		}

 		ws = n1.Bits()
 	}

-	data := wordsToBytes(ws)
+	lb := len(ws) * wordSizeBytes
+	if c := cap(data); c < lb {
+		data = make([]byte, lb, lb+1)
+	} else {
+		data = data[:lb]
+	}
+	data = wordsToBytes(ws, data)

 	size := len(data)
 	for ; data[size-1] == 0; size-- {
@ -122,10 +132,7 @@ func IntToBytes(n *big.Int) []byte {
 	return data
 }

-func wordsToBytes(ws []big.Word) []byte {
-	lb := len(ws) * wordSizeBytes
-	bs := make([]byte, lb, lb+1)
-
+func wordsToBytes(ws []big.Word, bs []byte) []byte {
 	if wordSizeBytes == 8 {
 		for i := range ws {
 			binary.LittleEndian.PutUint64(bs[i*wordSizeBytes:], uint64(ws[i]))
--- a/pkg/vm/emit/emit.go
+++ b/pkg/vm/emit/emit.go
@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
+	"math/bits"

 	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neo-go/pkg/util"
@ -32,20 +33,31 @@ func Bool(w *io.BinWriter, ok bool) {
 	Opcode(w, opcode.PUSHF)
 }

+func padRight(s int, buf []byte) []byte {
+	l := len(buf)
+	buf = buf[:s]
+	if buf[l-1]&0x80 != 0 {
+		for i := l; i < s; i++ {
+			buf[i] = 0xFF
+		}
+	}
+	return buf
+}
+
 // Int emits a int type to the given buffer.
 func Int(w *io.BinWriter, i int64) {
 	switch {
 	case i == -1:
 		Opcode(w, opcode.PUSHM1)
-	case i == 0:
-		Opcode(w, opcode.PUSHF)
-	case i > 0 && i < 16:
+	case i >= 0 && i < 16:
 		val := opcode.Opcode(int(opcode.PUSH1) - 1 + int(i))
 		Opcode(w, val)
 	default:
-		bInt := big.NewInt(i)
-		val := IntToBytes(bInt)
-		Bytes(w, val)
+		buf := intToBytes(big.NewInt(i), make([]byte, 0, 32))
+		// l != 0 becase of switch
+		padSize := byte(8 - bits.LeadingZeros8(byte(len(buf)-1)))
+		Opcode(w, opcode.PUSHINT8+opcode.Opcode(padSize))
+		w.WriteBytes(padRight(1<<padSize, buf))
 	}
 }

@ -82,9 +94,6 @@ func Bytes(w *io.BinWriter, b []byte) {
 	var n = len(b)

 	switch {
-	case n <= int(opcode.PUSHBYTES75):
-		Instruction(w, opcode.Opcode(n), b)
-		return
 	case n < 0x100:
 		Instruction(w, opcode.PUSHDATA1, []byte{byte(n)})
 	case n < 0x10000:
--- a/pkg/vm/emit/emit_test.go
+++ b/pkg/vm/emit/emit_test.go
@ -35,20 +35,49 @@ func TestEmitInt(t *testing.T) {
 		assert.EqualValues(t, opcode.PUSH10, result[0])
 	})

+	t.Run("big 1-byte int", func(t *testing.T) {
+		buf := io.NewBufBinWriter()
+		Int(buf.BinWriter, 42)
+		result := buf.Bytes()
+		assert.EqualValues(t, opcode.PUSHINT8, result[0])
+		assert.EqualValues(t, 42, result[1])
+	})
+
 	t.Run("2-byte int", func(t *testing.T) {
 		buf := io.NewBufBinWriter()
-		Int(buf.BinWriter, 100)
+		Int(buf.BinWriter, 300)
 		result := buf.Bytes()
-		assert.EqualValues(t, opcode.PUSHBYTES1, result[0])
-		assert.EqualValues(t, 100, result[1])
+		assert.Equal(t, 3, len(result))
+		assert.EqualValues(t, opcode.PUSHINT16, result[0])
+		assert.EqualValues(t, 300, BytesToInt(result[1:]).Int64())
+	})
+
+	t.Run("3-byte int", func(t *testing.T) {
+		buf := io.NewBufBinWriter()
+		Int(buf.BinWriter, 1<<20)
+		result := buf.Bytes()
+		assert.Equal(t, 5, len(result))
+		assert.EqualValues(t, opcode.PUSHINT32, result[0])
+		assert.EqualValues(t, 1<<20, BytesToInt(result[1:]).Int64())
 	})

 	t.Run("4-byte int", func(t *testing.T) {
 		buf := io.NewBufBinWriter()
-		Int(buf.BinWriter, 1000)
+		Int(buf.BinWriter, 1<<28)
 		result := buf.Bytes()
-		assert.EqualValues(t, opcode.PUSHBYTES2, result[0])
-		assert.EqualValues(t, 1000, binary.LittleEndian.Uint16(result[1:3]))
+		assert.Equal(t, 5, len(result))
+		assert.EqualValues(t, opcode.PUSHINT32, result[0])
+		assert.EqualValues(t, 1<<28, BytesToInt(result[1:]).Int64())
+	})
+
+	t.Run("negative 3-byte int with padding", func(t *testing.T) {
+		const num = -(1 << 23)
+		buf := io.NewBufBinWriter()
+		Int(buf.BinWriter, num)
+		result := buf.Bytes()
+		assert.Equal(t, 5, len(result))
+		assert.EqualValues(t, opcode.PUSHINT32, result[0])
+		assert.EqualValues(t, num, BytesToInt(result[1:]).Int64())
 	})
 }

@ -67,8 +96,9 @@ func TestBytes(t *testing.T) {
 		Bytes(buf.BinWriter, []byte{0, 1, 2, 3})

 		result := buf.Bytes()
-		assert.EqualValues(t, opcode.PUSHBYTES4, result[0])
-		assert.EqualValues(t, []byte{0, 1, 2, 3}, result[1:])
+		assert.EqualValues(t, opcode.PUSHDATA1, result[0])
+		assert.EqualValues(t, 4, result[1])
+		assert.EqualValues(t, []byte{0, 1, 2, 3}, result[2:])
 	})

 	t.Run("slice with len <= 255", func(t *testing.T) {
@ -115,19 +145,21 @@ func TestEmitArray(t *testing.T) {
 		require.NoError(t, buf.Err)

 		res := buf.Bytes()
-		assert.EqualValues(t, opcode.PUSHBYTES2, res[0])
-		assert.EqualValues(t, []byte{0xCA, 0xFE}, res[1:3])
-		assert.EqualValues(t, opcode.PUSHT, res[3])
-		assert.EqualValues(t, opcode.PUSHBYTES3, res[4])
-		assert.EqualValues(t, []byte("str"), res[5:8])
-		assert.EqualValues(t, opcode.PUSH1, res[8])
+		assert.EqualValues(t, opcode.PUSHDATA1, res[0])
+		assert.EqualValues(t, 2, res[1])
+		assert.EqualValues(t, []byte{0xCA, 0xFE}, res[2:4])
+		assert.EqualValues(t, opcode.PUSHT, res[4])
+		assert.EqualValues(t, opcode.PUSHDATA1, res[5])
+		assert.EqualValues(t, 3, res[6])
+		assert.EqualValues(t, []byte("str"), res[7:10])
+		assert.EqualValues(t, opcode.PUSH1, res[10])
 	})

 	t.Run("empty", func(t *testing.T) {
 		buf := io.NewBufBinWriter()
 		Array(buf.BinWriter)
 		require.NoError(t, buf.Err)
-		assert.EqualValues(t, []byte{0, byte(opcode.PACK)}, buf.Bytes())
+		assert.EqualValues(t, []byte{byte(opcode.PUSH0), byte(opcode.PACK)}, buf.Bytes())
 	})

 	t.Run("invalid type", func(t *testing.T) {
@ -150,8 +182,8 @@ func TestEmitString(t *testing.T) {
 	buf := io.NewBufBinWriter()
 	str := "City Of Zion"
 	String(buf.BinWriter, str)
-	assert.Equal(t, buf.Len(), len(str)+1)
-	assert.Equal(t, buf.Bytes()[1:], []byte(str))
+	assert.Equal(t, buf.Len(), len(str)+2)
+	assert.Equal(t, buf.Bytes()[2:], []byte(str))
 }

 func TestEmitSyscall(t *testing.T) {
--- a/pkg/vm/opcode/opcode.go
+++ b/pkg/vm/opcode/opcode.go
@ -8,105 +8,41 @@ type Opcode byte
 // Viable list of supported instruction constants.
 const (
 	// Constants
-	PUSH0       Opcode = 0x00
-	PUSHF       Opcode = PUSH0
-	PUSHBYTES1  Opcode = 0x01
-	PUSHBYTES2  Opcode = 0x02
-	PUSHBYTES3  Opcode = 0x03
-	PUSHBYTES4  Opcode = 0x04
-	PUSHBYTES5  Opcode = 0x05
-	PUSHBYTES6  Opcode = 0x06
-	PUSHBYTES7  Opcode = 0x07
-	PUSHBYTES8  Opcode = 0x08
-	PUSHBYTES9  Opcode = 0x09
-	PUSHBYTES10 Opcode = 0x0A
-	PUSHBYTES11 Opcode = 0x0B
-	PUSHBYTES12 Opcode = 0x0C
-	PUSHBYTES13 Opcode = 0x0D
-	PUSHBYTES14 Opcode = 0x0E
-	PUSHBYTES15 Opcode = 0x0F
-	PUSHBYTES16 Opcode = 0x10
-	PUSHBYTES17 Opcode = 0x11
-	PUSHBYTES18 Opcode = 0x12
-	PUSHBYTES19 Opcode = 0x13
-	PUSHBYTES20 Opcode = 0x14
-	PUSHBYTES21 Opcode = 0x15
-	PUSHBYTES22 Opcode = 0x16
-	PUSHBYTES23 Opcode = 0x17
-	PUSHBYTES24 Opcode = 0x18
-	PUSHBYTES25 Opcode = 0x19
-	PUSHBYTES26 Opcode = 0x1A
-	PUSHBYTES27 Opcode = 0x1B
-	PUSHBYTES28 Opcode = 0x1C
-	PUSHBYTES29 Opcode = 0x1D
-	PUSHBYTES30 Opcode = 0x1E
-	PUSHBYTES31 Opcode = 0x1F
-	PUSHBYTES32 Opcode = 0x20
-	PUSHBYTES33 Opcode = 0x21
-	PUSHBYTES34 Opcode = 0x22
-	PUSHBYTES35 Opcode = 0x23
-	PUSHBYTES36 Opcode = 0x24
-	PUSHBYTES37 Opcode = 0x25
-	PUSHBYTES38 Opcode = 0x26
-	PUSHBYTES39 Opcode = 0x27
-	PUSHBYTES40 Opcode = 0x28
-	PUSHBYTES41 Opcode = 0x29
-	PUSHBYTES42 Opcode = 0x2A
-	PUSHBYTES43 Opcode = 0x2B
-	PUSHBYTES44 Opcode = 0x2C
-	PUSHBYTES45 Opcode = 0x2D
-	PUSHBYTES46 Opcode = 0x2E
-	PUSHBYTES47 Opcode = 0x2F
-	PUSHBYTES48 Opcode = 0x30
-	PUSHBYTES49 Opcode = 0x31
-	PUSHBYTES50 Opcode = 0x32
-	PUSHBYTES51 Opcode = 0x33
-	PUSHBYTES52 Opcode = 0x34
-	PUSHBYTES53 Opcode = 0x35
-	PUSHBYTES54 Opcode = 0x36
-	PUSHBYTES55 Opcode = 0x37
-	PUSHBYTES56 Opcode = 0x38
-	PUSHBYTES57 Opcode = 0x39
-	PUSHBYTES58 Opcode = 0x3A
-	PUSHBYTES59 Opcode = 0x3B
-	PUSHBYTES60 Opcode = 0x3C
-	PUSHBYTES61 Opcode = 0x3D
-	PUSHBYTES62 Opcode = 0x3E
-	PUSHBYTES63 Opcode = 0x3F
-	PUSHBYTES64 Opcode = 0x40
-	PUSHBYTES65 Opcode = 0x41
-	PUSHBYTES66 Opcode = 0x42
-	PUSHBYTES67 Opcode = 0x43
-	PUSHBYTES68 Opcode = 0x44
-	PUSHBYTES69 Opcode = 0x45
-	PUSHBYTES70 Opcode = 0x46
-	PUSHBYTES71 Opcode = 0x47
-	PUSHBYTES72 Opcode = 0x48
-	PUSHBYTES73 Opcode = 0x49
-	PUSHBYTES74 Opcode = 0x4A
-	PUSHBYTES75 Opcode = 0x4B
-	PUSHDATA1   Opcode = 0x4C
-	PUSHDATA2   Opcode = 0x4D
-	PUSHDATA4   Opcode = 0x4E
-	PUSHM1      Opcode = 0x4F
-	PUSHNULL    Opcode = 0x50
-	PUSH1       Opcode = 0x51
-	PUSHT       Opcode = PUSH1
-	PUSH2       Opcode = 0x52
-	PUSH3       Opcode = 0x53
-	PUSH4       Opcode = 0x54
-	PUSH5       Opcode = 0x55
-	PUSH6       Opcode = 0x56
-	PUSH7       Opcode = 0x57
-	PUSH8       Opcode = 0x58
-	PUSH9       Opcode = 0x59
-	PUSH10      Opcode = 0x5A
-	PUSH11      Opcode = 0x5B
-	PUSH12      Opcode = 0x5C
-	PUSH13      Opcode = 0x5D
-	PUSH14      Opcode = 0x5E
-	PUSH15      Opcode = 0x5F
-	PUSH16      Opcode = 0x60
+	PUSHINT8   Opcode = 0x00
+	PUSHINT16  Opcode = 0x01
+	PUSHINT32  Opcode = 0x02
+	PUSHINT64  Opcode = 0x03
+	PUSHINT128 Opcode = 0x04
+	PUSHINT256 Opcode = 0x05
+
+	PUSHNULL Opcode = 0x0B
+
+	PUSHDATA1 Opcode = 0x0C
+	PUSHDATA2 Opcode = 0x0D
+	PUSHDATA4 Opcode = 0x0E
+
+	PUSHM1 Opcode = 0x0F
+	PUSH0  Opcode = 0x10
+	PUSHF  Opcode = PUSH0
+	PUSH1  Opcode = 0x11
+	PUSHT  Opcode = PUSH1
+	PUSH2  Opcode = 0x12
+	PUSH3  Opcode = 0x13
+	PUSH4  Opcode = 0x14
+	PUSH5  Opcode = 0x15
+	PUSH6  Opcode = 0x16
+	PUSH7  Opcode = 0x17
+	PUSH8  Opcode = 0x18
+	PUSH9  Opcode = 0x19
+	PUSH10 Opcode = 0x1A
+	PUSH11 Opcode = 0x1B
+	PUSH12 Opcode = 0x1C
+	PUSH13 Opcode = 0x1D
+	PUSH14 Opcode = 0x1E
+	PUSH15 Opcode = 0x1F
+	PUSH16 Opcode = 0x20
+
+	OLDPUSH1 Opcode = 0x51

 	// Flow control
 	NOP      Opcode = 0x61
--- a/pkg/vm/opcode/opcode_string.go
+++ b/pkg/vm/opcode/opcode_string.go
@ -1,4 +1,4 @@
-// Code generated by "stringer -type=Opcode"; DO NOT EDIT.
+// Code generated by "stringer -type Opcode"; DO NOT EDIT.

 package opcode

@ -8,104 +8,36 @@ func _() {
 	// An "invalid array index" compiler error signifies that the constant values have changed.
 	// Re-run the stringer command to generate them again.
 	var x [1]struct{}
-	_ = x[PUSH0-0]
-	_ = x[PUSHF-0]
-	_ = x[PUSHBYTES1-1]
-	_ = x[PUSHBYTES2-2]
-	_ = x[PUSHBYTES3-3]
-	_ = x[PUSHBYTES4-4]
-	_ = x[PUSHBYTES5-5]
-	_ = x[PUSHBYTES6-6]
-	_ = x[PUSHBYTES7-7]
-	_ = x[PUSHBYTES8-8]
-	_ = x[PUSHBYTES9-9]
-	_ = x[PUSHBYTES10-10]
-	_ = x[PUSHBYTES11-11]
-	_ = x[PUSHBYTES12-12]
-	_ = x[PUSHBYTES13-13]
-	_ = x[PUSHBYTES14-14]
-	_ = x[PUSHBYTES15-15]
-	_ = x[PUSHBYTES16-16]
-	_ = x[PUSHBYTES17-17]
-	_ = x[PUSHBYTES18-18]
-	_ = x[PUSHBYTES19-19]
-	_ = x[PUSHBYTES20-20]
-	_ = x[PUSHBYTES21-21]
-	_ = x[PUSHBYTES22-22]
-	_ = x[PUSHBYTES23-23]
-	_ = x[PUSHBYTES24-24]
-	_ = x[PUSHBYTES25-25]
-	_ = x[PUSHBYTES26-26]
-	_ = x[PUSHBYTES27-27]
-	_ = x[PUSHBYTES28-28]
-	_ = x[PUSHBYTES29-29]
-	_ = x[PUSHBYTES30-30]
-	_ = x[PUSHBYTES31-31]
-	_ = x[PUSHBYTES32-32]
-	_ = x[PUSHBYTES33-33]
-	_ = x[PUSHBYTES34-34]
-	_ = x[PUSHBYTES35-35]
-	_ = x[PUSHBYTES36-36]
-	_ = x[PUSHBYTES37-37]
-	_ = x[PUSHBYTES38-38]
-	_ = x[PUSHBYTES39-39]
-	_ = x[PUSHBYTES40-40]
-	_ = x[PUSHBYTES41-41]
-	_ = x[PUSHBYTES42-42]
-	_ = x[PUSHBYTES43-43]
-	_ = x[PUSHBYTES44-44]
-	_ = x[PUSHBYTES45-45]
-	_ = x[PUSHBYTES46-46]
-	_ = x[PUSHBYTES47-47]
-	_ = x[PUSHBYTES48-48]
-	_ = x[PUSHBYTES49-49]
-	_ = x[PUSHBYTES50-50]
-	_ = x[PUSHBYTES51-51]
-	_ = x[PUSHBYTES52-52]
-	_ = x[PUSHBYTES53-53]
-	_ = x[PUSHBYTES54-54]
-	_ = x[PUSHBYTES55-55]
-	_ = x[PUSHBYTES56-56]
-	_ = x[PUSHBYTES57-57]
-	_ = x[PUSHBYTES58-58]
-	_ = x[PUSHBYTES59-59]
-	_ = x[PUSHBYTES60-60]
-	_ = x[PUSHBYTES61-61]
-	_ = x[PUSHBYTES62-62]
-	_ = x[PUSHBYTES63-63]
-	_ = x[PUSHBYTES64-64]
-	_ = x[PUSHBYTES65-65]
-	_ = x[PUSHBYTES66-66]
-	_ = x[PUSHBYTES67-67]
-	_ = x[PUSHBYTES68-68]
-	_ = x[PUSHBYTES69-69]
-	_ = x[PUSHBYTES70-70]
-	_ = x[PUSHBYTES71-71]
-	_ = x[PUSHBYTES72-72]
-	_ = x[PUSHBYTES73-73]
-	_ = x[PUSHBYTES74-74]
-	_ = x[PUSHBYTES75-75]
-	_ = x[PUSHDATA1-76]
-	_ = x[PUSHDATA2-77]
-	_ = x[PUSHDATA4-78]
-	_ = x[PUSHM1-79]
-	_ = x[PUSH1-81]
-	_ = x[PUSHT-81]
-	_ = x[PUSH2-82]
-	_ = x[PUSH3-83]
-	_ = x[PUSH4-84]
-	_ = x[PUSH5-85]
-	_ = x[PUSH6-86]
-	_ = x[PUSH7-87]
-	_ = x[PUSH8-88]
-	_ = x[PUSH9-89]
-	_ = x[PUSH10-90]
-	_ = x[PUSH11-91]
-	_ = x[PUSH12-92]
-	_ = x[PUSH13-93]
-	_ = x[PUSH14-94]
-	_ = x[PUSH15-95]
-	_ = x[PUSH16-96]
+	_ = x[PUSHINT8-0]
+	_ = x[PUSHINT16-1]
+	_ = x[PUSHINT32-2]
+	_ = x[PUSHINT64-3]
+	_ = x[PUSHINT128-4]
+	_ = x[PUSHINT256-5]
+	_ = x[PUSHNULL-11]
+	_ = x[PUSHDATA1-12]
+	_ = x[PUSHDATA2-13]
+	_ = x[PUSHDATA4-14]
+	_ = x[PUSHM1-15]
+	_ = x[PUSH0-16]
+	_ = x[PUSHF-16]
+	_ = x[PUSH1-17]
+	_ = x[PUSHT-17]
+	_ = x[PUSH2-18]
+	_ = x[PUSH3-19]
+	_ = x[PUSH4-20]
+	_ = x[PUSH5-21]
+	_ = x[PUSH6-22]
+	_ = x[PUSH7-23]
+	_ = x[PUSH8-24]
+	_ = x[PUSH9-25]
+	_ = x[PUSH10-26]
+	_ = x[PUSH11-27]
+	_ = x[PUSH12-28]
+	_ = x[PUSH13-29]
+	_ = x[PUSH14-30]
+	_ = x[PUSH15-31]
+	_ = x[PUSH16-32]
 	_ = x[NOP-97]
 	_ = x[JMP-98]
 	_ = x[JMPIF-99]
@ -115,6 +47,7 @@ func _() {
 	_ = x[APPCALL-103]
 	_ = x[SYSCALL-104]
 	_ = x[TAILCALL-105]
+	_ = x[ISNULL-112]
 	_ = x[DUPFROMALTSTACK-106]
 	_ = x[TOALTSTACK-107]
 	_ = x[FROMALTSTACK-108]
@ -196,193 +129,126 @@ func _() {
 	_ = x[THROWIFNOT-241]
 }

-const _Opcode_name = "PUSH0PUSHBYTES1PUSHBYTES2PUSHBYTES3PUSHBYTES4PUSHBYTES5PUSHBYTES6PUSHBYTES7PUSHBYTES8PUSHBYTES9PUSHBYTES10PUSHBYTES11PUSHBYTES12PUSHBYTES13PUSHBYTES14PUSHBYTES15PUSHBYTES16PUSHBYTES17PUSHBYTES18PUSHBYTES19PUSHBYTES20PUSHBYTES21PUSHBYTES22PUSHBYTES23PUSHBYTES24PUSHBYTES25PUSHBYTES26PUSHBYTES27PUSHBYTES28PUSHBYTES29PUSHBYTES30PUSHBYTES31PUSHBYTES32PUSHBYTES33PUSHBYTES34PUSHBYTES35PUSHBYTES36PUSHBYTES37PUSHBYTES38PUSHBYTES39PUSHBYTES40PUSHBYTES41PUSHBYTES42PUSHBYTES43PUSHBYTES44PUSHBYTES45PUSHBYTES46PUSHBYTES47PUSHBYTES48PUSHBYTES49PUSHBYTES50PUSHBYTES51PUSHBYTES52PUSHBYTES53PUSHBYTES54PUSHBYTES55PUSHBYTES56PUSHBYTES57PUSHBYTES58PUSHBYTES59PUSHBYTES60PUSHBYTES61PUSHBYTES62PUSHBYTES63PUSHBYTES64PUSHBYTES65PUSHBYTES66PUSHBYTES67PUSHBYTES68PUSHBYTES69PUSHBYTES70PUSHBYTES71PUSHBYTES72PUSHBYTES73PUSHBYTES74PUSHBYTES75PUSHDATA1PUSHDATA2PUSHDATA4PUSHM1PUSH1PUSH2PUSH3PUSH4PUSH5PUSH6PUSH7PUSH8PUSH9PUSH10PUSH11PUSH12PUSH13PUSH14PUSH15PUSH16NOPJMPJMPIFJMPIFNOTCALLRETAPPCALLSYSCALLTAILCALLDUPFROMALTSTACKTOALTSTACKFROMALTSTACKXDROPXSWAPXTUCKDEPTHDROPDUPNIPOVERPICKROLLROTSWAPTUCKCATSUBSTRLEFTRIGHTSIZEINVERTANDORXOREQUALINCDECSIGNNEGATEABSNOTNZADDSUBMULDIVMODSHLSHRBOOLANDBOOLORNUMEQUALNUMNOTEQUALLTGTLTEGTEMINMAXWITHINSHA1SHA256HASH160HASH256CHECKSIGVERIFYCHECKMULTISIGARRAYSIZEPACKUNPACKPICKITEMSETITEMNEWARRAYNEWSTRUCTNEWMAPAPPENDREVERSEREMOVEHASKEYKEYSVALUESCALLICALLECALLEDCALLETCALLEDTTHROWTHROWIFNOT"
+const _Opcode_name = "PUSHINT8PUSHINT16PUSHINT32PUSHINT64PUSHINT128PUSHINT256PUSHNULLPUSHDATA1PUSHDATA2PUSHDATA4PUSHM1PUSH0PUSH1PUSH2PUSH3PUSH4PUSH5PUSH6PUSH7PUSH8PUSH9PUSH10PUSH11PUSH12PUSH13PUSH14PUSH15PUSH16NOPJMPJMPIFJMPIFNOTCALLRETAPPCALLSYSCALLTAILCALLDUPFROMALTSTACKTOALTSTACKFROMALTSTACKXDROPISNULLXSWAPXTUCKDEPTHDROPDUPNIPOVERPICKROLLROTSWAPTUCKCATSUBSTRLEFTRIGHTSIZEINVERTANDORXOREQUALINCDECSIGNNEGATEABSNOTNZADDSUBMULDIVMODSHLSHRBOOLANDBOOLORNUMEQUALNUMNOTEQUALLTGTLTEGTEMINMAXWITHINSHA1SHA256HASH160HASH256CHECKSIGVERIFYCHECKMULTISIGARRAYSIZEPACKUNPACKPICKITEMSETITEMNEWARRAYNEWSTRUCTNEWMAPAPPENDREVERSEREMOVEHASKEYKEYSVALUESCALLICALLECALLEDCALLETCALLEDTTHROWTHROWIFNOT"

 var _Opcode_map = map[Opcode]string{
-	0:   _Opcode_name[0:5],
-	1:   _Opcode_name[5:15],
-	2:   _Opcode_name[15:25],
-	3:   _Opcode_name[25:35],
+	0:   _Opcode_name[0:8],
+	1:   _Opcode_name[8:17],
+	2:   _Opcode_name[17:26],
+	3:   _Opcode_name[26:35],
 	4:   _Opcode_name[35:45],
 	5:   _Opcode_name[45:55],
-	6:   _Opcode_name[55:65],
-	7:   _Opcode_name[65:75],
-	8:   _Opcode_name[75:85],
-	9:   _Opcode_name[85:95],
-	10:  _Opcode_name[95:106],
-	11:  _Opcode_name[106:117],
-	12:  _Opcode_name[117:128],
-	13:  _Opcode_name[128:139],
-	14:  _Opcode_name[139:150],
-	15:  _Opcode_name[150:161],
-	16:  _Opcode_name[161:172],
-	17:  _Opcode_name[172:183],
-	18:  _Opcode_name[183:194],
-	19:  _Opcode_name[194:205],
-	20:  _Opcode_name[205:216],
-	21:  _Opcode_name[216:227],
-	22:  _Opcode_name[227:238],
-	23:  _Opcode_name[238:249],
-	24:  _Opcode_name[249:260],
-	25:  _Opcode_name[260:271],
-	26:  _Opcode_name[271:282],
-	27:  _Opcode_name[282:293],
-	28:  _Opcode_name[293:304],
-	29:  _Opcode_name[304:315],
-	30:  _Opcode_name[315:326],
-	31:  _Opcode_name[326:337],
-	32:  _Opcode_name[337:348],
-	33:  _Opcode_name[348:359],
-	34:  _Opcode_name[359:370],
-	35:  _Opcode_name[370:381],
-	36:  _Opcode_name[381:392],
-	37:  _Opcode_name[392:403],
-	38:  _Opcode_name[403:414],
-	39:  _Opcode_name[414:425],
-	40:  _Opcode_name[425:436],
-	41:  _Opcode_name[436:447],
-	42:  _Opcode_name[447:458],
-	43:  _Opcode_name[458:469],
-	44:  _Opcode_name[469:480],
-	45:  _Opcode_name[480:491],
-	46:  _Opcode_name[491:502],
-	47:  _Opcode_name[502:513],
-	48:  _Opcode_name[513:524],
-	49:  _Opcode_name[524:535],
-	50:  _Opcode_name[535:546],
-	51:  _Opcode_name[546:557],
-	52:  _Opcode_name[557:568],
-	53:  _Opcode_name[568:579],
-	54:  _Opcode_name[579:590],
-	55:  _Opcode_name[590:601],
-	56:  _Opcode_name[601:612],
-	57:  _Opcode_name[612:623],
-	58:  _Opcode_name[623:634],
-	59:  _Opcode_name[634:645],
-	60:  _Opcode_name[645:656],
-	61:  _Opcode_name[656:667],
-	62:  _Opcode_name[667:678],
-	63:  _Opcode_name[678:689],
-	64:  _Opcode_name[689:700],
-	65:  _Opcode_name[700:711],
-	66:  _Opcode_name[711:722],
-	67:  _Opcode_name[722:733],
-	68:  _Opcode_name[733:744],
-	69:  _Opcode_name[744:755],
-	70:  _Opcode_name[755:766],
-	71:  _Opcode_name[766:777],
-	72:  _Opcode_name[777:788],
-	73:  _Opcode_name[788:799],
-	74:  _Opcode_name[799:810],
-	75:  _Opcode_name[810:821],
-	76:  _Opcode_name[821:830],
-	77:  _Opcode_name[830:839],
-	78:  _Opcode_name[839:848],
-	79:  _Opcode_name[848:854],
-	81:  _Opcode_name[854:859],
-	82:  _Opcode_name[859:864],
-	83:  _Opcode_name[864:869],
-	84:  _Opcode_name[869:874],
-	85:  _Opcode_name[874:879],
-	86:  _Opcode_name[879:884],
-	87:  _Opcode_name[884:889],
-	88:  _Opcode_name[889:894],
-	89:  _Opcode_name[894:899],
-	90:  _Opcode_name[899:905],
-	91:  _Opcode_name[905:911],
-	92:  _Opcode_name[911:917],
-	93:  _Opcode_name[917:923],
-	94:  _Opcode_name[923:929],
-	95:  _Opcode_name[929:935],
-	96:  _Opcode_name[935:941],
-	97:  _Opcode_name[941:944],
-	98:  _Opcode_name[944:947],
-	99:  _Opcode_name[947:952],
-	100: _Opcode_name[952:960],
-	101: _Opcode_name[960:964],
-	102: _Opcode_name[964:967],
-	103: _Opcode_name[967:974],
-	104: _Opcode_name[974:981],
-	105: _Opcode_name[981:989],
-	106: _Opcode_name[989:1004],
-	107: _Opcode_name[1004:1014],
-	108: _Opcode_name[1014:1026],
-	109: _Opcode_name[1026:1031],
-	114: _Opcode_name[1031:1036],
-	115: _Opcode_name[1036:1041],
-	116: _Opcode_name[1041:1046],
-	117: _Opcode_name[1046:1050],
-	118: _Opcode_name[1050:1053],
-	119: _Opcode_name[1053:1056],
-	120: _Opcode_name[1056:1060],
-	121: _Opcode_name[1060:1064],
-	122: _Opcode_name[1064:1068],
-	123: _Opcode_name[1068:1071],
-	124: _Opcode_name[1071:1075],
-	125: _Opcode_name[1075:1079],
-	126: _Opcode_name[1079:1082],
-	127: _Opcode_name[1082:1088],
-	128: _Opcode_name[1088:1092],
-	129: _Opcode_name[1092:1097],
-	130: _Opcode_name[1097:1101],
-	131: _Opcode_name[1101:1107],
-	132: _Opcode_name[1107:1110],
-	133: _Opcode_name[1110:1112],
-	134: _Opcode_name[1112:1115],
-	135: _Opcode_name[1115:1120],
-	139: _Opcode_name[1120:1123],
-	140: _Opcode_name[1123:1126],
-	141: _Opcode_name[1126:1130],
-	143: _Opcode_name[1130:1136],
-	144: _Opcode_name[1136:1139],
-	145: _Opcode_name[1139:1142],
-	146: _Opcode_name[1142:1144],
-	147: _Opcode_name[1144:1147],
-	148: _Opcode_name[1147:1150],
-	149: _Opcode_name[1150:1153],
-	150: _Opcode_name[1153:1156],
-	151: _Opcode_name[1156:1159],
-	152: _Opcode_name[1159:1162],
-	153: _Opcode_name[1162:1165],
-	154: _Opcode_name[1165:1172],
-	155: _Opcode_name[1172:1178],
-	156: _Opcode_name[1178:1186],
-	158: _Opcode_name[1186:1197],
-	159: _Opcode_name[1197:1199],
-	160: _Opcode_name[1199:1201],
-	161: _Opcode_name[1201:1204],
-	162: _Opcode_name[1204:1207],
-	163: _Opcode_name[1207:1210],
-	164: _Opcode_name[1210:1213],
-	165: _Opcode_name[1213:1219],
-	167: _Opcode_name[1219:1223],
-	168: _Opcode_name[1223:1229],
-	169: _Opcode_name[1229:1236],
-	170: _Opcode_name[1236:1243],
-	172: _Opcode_name[1243:1251],
-	173: _Opcode_name[1251:1257],
-	174: _Opcode_name[1257:1270],
-	192: _Opcode_name[1270:1279],
-	193: _Opcode_name[1279:1283],
-	194: _Opcode_name[1283:1289],
-	195: _Opcode_name[1289:1297],
-	196: _Opcode_name[1297:1304],
-	197: _Opcode_name[1304:1312],
-	198: _Opcode_name[1312:1321],
-	199: _Opcode_name[1321:1327],
-	200: _Opcode_name[1327:1333],
-	201: _Opcode_name[1333:1340],
-	202: _Opcode_name[1340:1346],
-	203: _Opcode_name[1346:1352],
-	204: _Opcode_name[1352:1356],
-	205: _Opcode_name[1356:1362],
-	224: _Opcode_name[1362:1367],
-	225: _Opcode_name[1367:1372],
-	226: _Opcode_name[1372:1378],
-	227: _Opcode_name[1378:1384],
-	228: _Opcode_name[1384:1391],
-	240: _Opcode_name[1391:1396],
-	241: _Opcode_name[1396:1406],
+	11:  _Opcode_name[55:63],
+	12:  _Opcode_name[63:72],
+	13:  _Opcode_name[72:81],
+	14:  _Opcode_name[81:90],
+	15:  _Opcode_name[90:96],
+	16:  _Opcode_name[96:101],
+	17:  _Opcode_name[101:106],
+	18:  _Opcode_name[106:111],
+	19:  _Opcode_name[111:116],
+	20:  _Opcode_name[116:121],
+	21:  _Opcode_name[121:126],
+	22:  _Opcode_name[126:131],
+	23:  _Opcode_name[131:136],
+	24:  _Opcode_name[136:141],
+	25:  _Opcode_name[141:146],
+	26:  _Opcode_name[146:152],
+	27:  _Opcode_name[152:158],
+	28:  _Opcode_name[158:164],
+	29:  _Opcode_name[164:170],
+	30:  _Opcode_name[170:176],
+	31:  _Opcode_name[176:182],
+	32:  _Opcode_name[182:188],
+	97:  _Opcode_name[188:191],
+	98:  _Opcode_name[191:194],
+	99:  _Opcode_name[194:199],
+	100: _Opcode_name[199:207],
+	101: _Opcode_name[207:211],
+	102: _Opcode_name[211:214],
+	103: _Opcode_name[214:221],
+	104: _Opcode_name[221:228],
+	105: _Opcode_name[228:236],
+	106: _Opcode_name[236:251],
+	107: _Opcode_name[251:261],
+	108: _Opcode_name[261:273],
+	109: _Opcode_name[273:278],
+	112: _Opcode_name[278:284],
+	114: _Opcode_name[284:289],
+	115: _Opcode_name[289:294],
+	116: _Opcode_name[294:299],
+	117: _Opcode_name[299:303],
+	118: _Opcode_name[303:306],
+	119: _Opcode_name[306:309],
+	120: _Opcode_name[309:313],
+	121: _Opcode_name[313:317],
+	122: _Opcode_name[317:321],
+	123: _Opcode_name[321:324],
+	124: _Opcode_name[324:328],
+	125: _Opcode_name[328:332],
+	126: _Opcode_name[332:335],
+	127: _Opcode_name[335:341],
+	128: _Opcode_name[341:345],
+	129: _Opcode_name[345:350],
+	130: _Opcode_name[350:354],
+	131: _Opcode_name[354:360],
+	132: _Opcode_name[360:363],
+	133: _Opcode_name[363:365],
+	134: _Opcode_name[365:368],
+	135: _Opcode_name[368:373],
+	139: _Opcode_name[373:376],
+	140: _Opcode_name[376:379],
+	141: _Opcode_name[379:383],
+	143: _Opcode_name[383:389],
+	144: _Opcode_name[389:392],
+	145: _Opcode_name[392:395],
+	146: _Opcode_name[395:397],
+	147: _Opcode_name[397:400],
+	148: _Opcode_name[400:403],
+	149: _Opcode_name[403:406],
+	150: _Opcode_name[406:409],
+	151: _Opcode_name[409:412],
+	152: _Opcode_name[412:415],
+	153: _Opcode_name[415:418],
+	154: _Opcode_name[418:425],
+	155: _Opcode_name[425:431],
+	156: _Opcode_name[431:439],
+	158: _Opcode_name[439:450],
+	159: _Opcode_name[450:452],
+	160: _Opcode_name[452:454],
+	161: _Opcode_name[454:457],
+	162: _Opcode_name[457:460],
+	163: _Opcode_name[460:463],
+	164: _Opcode_name[463:466],
+	165: _Opcode_name[466:472],
+	167: _Opcode_name[472:476],
+	168: _Opcode_name[476:482],
+	169: _Opcode_name[482:489],
+	170: _Opcode_name[489:496],
+	172: _Opcode_name[496:504],
+	173: _Opcode_name[504:510],
+	174: _Opcode_name[510:523],
+	192: _Opcode_name[523:532],
+	193: _Opcode_name[532:536],
+	194: _Opcode_name[536:542],
+	195: _Opcode_name[542:550],
+	196: _Opcode_name[550:557],
+	197: _Opcode_name[557:565],
+	198: _Opcode_name[565:574],
+	199: _Opcode_name[574:580],
+	200: _Opcode_name[580:586],
+	201: _Opcode_name[586:593],
+	202: _Opcode_name[593:599],
+	203: _Opcode_name[599:605],
+	204: _Opcode_name[605:609],
+	205: _Opcode_name[609:615],
+	224: _Opcode_name[615:620],
+	225: _Opcode_name[620:625],
+	226: _Opcode_name[625:631],
+	227: _Opcode_name[631:637],
+	228: _Opcode_name[637:644],
+	240: _Opcode_name[644:649],
+	241: _Opcode_name[649:659],
 }

 func (i Opcode) String() string {
--- a/pkg/vm/vm.go
+++ b/pkg/vm/vm.go
@ -14,6 +14,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/emit"
 	"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
 	"github.com/pkg/errors"
 )
@ -535,8 +536,8 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
 		}
 	}

-	if op >= opcode.PUSHBYTES1 && op <= opcode.PUSHBYTES75 {
-		v.estack.PushVal(parameter)
+	if op <= opcode.PUSHINT256 {
+		v.estack.PushVal(emit.BytesToInt(parameter))
 		return
 	}

@ -549,6 +550,10 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
 		val := int(op) - int(opcode.PUSH1) + 1
 		v.estack.PushVal(val)

+	case opcode.OLDPUSH1:
+		// FIXME remove this after Issue transactions will be removed
+		v.estack.PushVal(1)
+
 	case opcode.PUSH0:
 		v.estack.PushVal([]byte{})

--- a/pkg/vm/vm_test.go
+++ b/pkg/vm/vm_test.go
@ -8,6 +8,7 @@ import (
 	"math/rand"
 	"testing"

+	"github.com/nspcc-dev/neo-go/pkg/internal/random"
 	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm/emit"
@ -138,13 +139,6 @@ func TestPushBytes1to75(t *testing.T) {
 	}
 }

-func TestPushBytesNoParam(t *testing.T) {
-	prog := make([]byte, 1)
-	prog[0] = byte(opcode.PUSHBYTES1)
-	vm := load(prog)
-	checkVMFailed(t, vm)
-}
-
 func runVM(t *testing.T, vm *VM) {
 	err := vm.Run()
 	require.NoError(t, err)
@ -179,6 +173,24 @@ func TestStackLimitPUSH1Bad(t *testing.T) {
 	checkVMFailed(t, v)
 }

+func testPUSHINT(t *testing.T, op opcode.Opcode, parameter []byte, expected *big.Int) {
+	prog := append([]byte{byte(op)}, parameter...)
+	v := load(prog)
+	runVM(t, v)
+	require.Equal(t, 1, v.estack.Len())
+	require.EqualValues(t, expected, v.estack.Pop().BigInt())
+}
+
+func TestPUSHINT(t *testing.T) {
+	for i := byte(0); i < 5; i++ {
+		op := opcode.PUSHINT8 + opcode.Opcode(i)
+		t.Run(op.String(), func(t *testing.T) {
+			buf := random.Bytes((8 << i) / 8)
+			testPUSHINT(t, op, buf, emit.BytesToInt(buf))
+		})
+	}
+}
+
 func TestPUSHNULL(t *testing.T) {
 	prog := makeProgram(opcode.PUSHNULL, opcode.PUSHNULL, opcode.EQUAL)
 	v := load(prog)
@ -220,7 +232,7 @@ func appendBigStruct(size uint16) []opcode.Opcode {
 	}

 	return append(prog,
-		opcode.PUSHBYTES2, opcode.Opcode(size), opcode.Opcode(size>>8), // LE
+		opcode.PUSHINT16, opcode.Opcode(size), opcode.Opcode(size>>8), // LE
 		opcode.PACK, opcode.NEWSTRUCT,
 		opcode.DUP,
 		opcode.PUSH0, opcode.NEWARRAY, opcode.TOALTSTACK, opcode.DUPFROMALTSTACK,
@ -277,13 +289,6 @@ func TestStackLimit(t *testing.T) {
 	}
 }

-func TestPushBytesShort(t *testing.T) {
-	prog := make([]byte, 10)
-	prog[0] = byte(opcode.PUSHBYTES10) // but only 9 left in the `prog`
-	vm := load(prog)
-	checkVMFailed(t, vm)
-}
-
 func TestPushm1to16(t *testing.T) {
 	var prog []byte
 	for i := int(opcode.PUSHM1); i <= int(opcode.PUSH16); i++ {
@ -295,14 +300,10 @@ func TestPushm1to16(t *testing.T) {

 	vm := load(prog)
 	for i := int(opcode.PUSHM1); i <= int(opcode.PUSH16); i++ {
-		if i == 80 {
-			continue // nice opcode layout we got here.
-		}
 		err := vm.Step()
 		require.NoError(t, err)

 		elem := vm.estack.Pop()
-		assert.IsType(t, &BigIntegerItem{}, elem.value)
 		val := i - int(opcode.PUSH1) + 1
 		assert.Equal(t, elem.BigInt().Int64(), int64(val))
 	}
@ -716,7 +717,7 @@ func TestSerializeInterop(t *testing.T) {

 func callNTimes(n uint16) []byte {
 	return makeProgram(
-		opcode.PUSHBYTES2, opcode.Opcode(n), opcode.Opcode(n>>8), // little-endian
+		opcode.PUSHINT16, opcode.Opcode(n), opcode.Opcode(n>>8), // little-endian
 		opcode.TOALTSTACK, opcode.DUPFROMALTSTACK,
 		opcode.JMPIF, 0x4, 0, opcode.RET,
 		opcode.FROMALTSTACK, opcode.DEC,
@ -1391,7 +1392,7 @@ func TestPICKITEMDupArray(t *testing.T) {
 }

 func TestPICKITEMDupMap(t *testing.T) {
-	prog := makeProgram(opcode.DUP, opcode.PUSHBYTES1, 42, opcode.PICKITEM, opcode.ABS)
+	prog := makeProgram(opcode.DUP, opcode.PUSHINT8, 42, opcode.PICKITEM, opcode.ABS)
 	vm := load(prog)
 	m := NewMapItem()
 	m.Add(makeStackItem([]byte{42}), makeStackItem(-1))
@ -2036,12 +2037,12 @@ func TestOVERgood(t *testing.T) {
 }

 func TestOVERDup(t *testing.T) {
-	prog := makeProgram(opcode.PUSHBYTES2, 1, 0,
+	prog := makeProgram(opcode.PUSHDATA1, 2, 1, 0,
 		opcode.PUSH1,
 		opcode.OVER,
 		opcode.PUSH1,
 		opcode.LEFT,
-		opcode.PUSHBYTES1, 2,
+		opcode.PUSHDATA1, 1, 2,
 		opcode.CAT)
 	vm := load(prog)
 	runVM(t, vm)
@ -2679,11 +2680,11 @@ func TestDupInt(t *testing.T) {
 }

 func TestDupByteArray(t *testing.T) {
-	prog := makeProgram(opcode.PUSHBYTES2, 1, 0,
+	prog := makeProgram(opcode.PUSHDATA1, 2, 1, 0,
 		opcode.DUP,
 		opcode.PUSH1,
 		opcode.LEFT,
-		opcode.PUSHBYTES1, 2,
+		opcode.PUSHDATA1, 1, 2,
 		opcode.CAT)
 	vm := load(prog)
 	runVM(t, vm)
@ -2707,7 +2708,7 @@ func TestDupBool(t *testing.T) {
 func TestSHA1(t *testing.T) {
 	// 0x0100 hashes to 0e356ba505631fbf715758bed27d503f8b260e3a
 	res := "0e356ba505631fbf715758bed27d503f8b260e3a"
-	prog := makeProgram(opcode.PUSHBYTES2, 1, 0,
+	prog := makeProgram(opcode.PUSHDATA1, 2, 1, 0,
 		opcode.SHA1)
 	vm := load(prog)
 	runVM(t, vm)
@ -2718,7 +2719,7 @@ func TestSHA1(t *testing.T) {
 func TestSHA256(t *testing.T) {
 	// 0x0100 hashes to 47dc540c94ceb704a23875c11273e16bb0b8a87aed84de911f2133568115f254
 	res := "47dc540c94ceb704a23875c11273e16bb0b8a87aed84de911f2133568115f254"
-	prog := makeProgram(opcode.PUSHBYTES2, 1, 0,
+	prog := makeProgram(opcode.PUSHDATA1, 2, 1, 0,
 		opcode.SHA256)
 	vm := load(prog)
 	runVM(t, vm)
--- a/pkg/wallet/account.go
+++ b/pkg/wallet/account.go
@ -135,7 +135,7 @@ func (a *Account) SignTx(t *transaction.Transaction) error {
 	sign := a.privateKey.Sign(data)

 	t.Scripts = append(t.Scripts, transaction.Witness{
-		InvocationScript:   append([]byte{byte(opcode.PUSHBYTES64)}, sign...),
+		InvocationScript:   append([]byte{byte(opcode.PUSHDATA1), 64}, sign...),
 		VerificationScript: a.getVerificationScript(),
 	})

--- a/pkg/wallet/account_test.go
+++ b/pkg/wallet/account_test.go
@ -113,13 +113,13 @@ func TestAccount_ConvertMultisig(t *testing.T) {
 	t.Run("1/1 multisig", func(t *testing.T) {
 		pubs := convertPubs(t, hexs[:1])
 		require.NoError(t, a.ConvertMultisig(1, pubs))
-		require.Equal(t, "Ab3TJfgpa94yDr1WPeXpYQiChTRohBJ6T5", a.Address)
+		require.Equal(t, "ANg3mmstMr7qtY8TgdKM777WSLKCNFbawM", a.Address)
 	})

 	t.Run("3/4 multisig", func(t *testing.T) {
 		pubs := convertPubs(t, hexs)
 		require.NoError(t, a.ConvertMultisig(3, pubs))
-		require.Equal(t, "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6", a.Address)
+		require.Equal(t, "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy", a.Address)
 	})
 }

--- a/pkg/wallet/testdata/wallet1.json
+++ b/pkg/wallet/testdata/wallet1.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AQyx83BYr1PkyYhZhUAogaHdhkLVHn6htY",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "ASW1VhcukJRrukCXRipY4BE9d9zy4mAYsR",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "4c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc250680a906ad4",
+        "script": "0c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
--- a/pkg/wallet/testdata/wallet2.json
+++ b/pkg/wallet/testdata/wallet2.json
@ -2,11 +2,11 @@
  "version": "1.0",
  "accounts": [
    {
-      "address": "AQyx83BYr1PkyYhZhUAogaHdhkLVHn6htY",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "ASW1VhcukJRrukCXRipY4BE9d9zy4mAYsR",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "4c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc250680a906ad4",
+        "script": "0c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
@ -19,11 +19,11 @@
      "isDefault": false
    },
    {
-      "address": "AbHd9dXYUryuCvMgXRUfdR6zC2CJixS6Q6",
-      "key": "6PYKYQKRs758NBX4q5k6fSmduZDfEfQyoXMovQU5myKm2h5ArXuYpuMEaN",
+      "address": "Ad1wDxzcRiRSryvJobNV211Tv7UUiziPXy",
+      "key": "6PYNTeMkEZ1Q2MCqkPMgvC2kvRzH6f1sz4Sj9cGcLG4iYb43yQcpThAeap",
      "label": "",
      "contract": {
-        "script": "534c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e4c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd624c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc24c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6995450683073b3bb",
+        "script": "130c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0c2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd620c2102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc20c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee699140b683073b3bb",
        "parameters": [
          {
            "name": "parameter0",
@ -44,11 +44,11 @@
      "isDefault": false
    },
    {
-      "address": "AdB6ayKfBRJZasiXX4JL5N2YtmxftNp1b3",
-      "key": "6PYXPEFeBxeDjqMiwRrSe81LnpL1cpw1WSwENJY1p4NtgSbfZPaUFy8Kkg",
+      "address": "Aaidx8VxYVjpD6knF8toWG7WquQjQFWcZB",
+      "key": "6PYMZM16cgdQ9GH5ejEPFqehuZ3Lp16W4fW7LyoBdUuVyeMeom7z8wP5QV",
      "label": "",
      "contract": {
-        "script": "4c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e50680a906ad4",
+        "script": "0c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0b680a906ad4",
        "parameters": [
          {
            "name": "parameter0",
--- a/pkg/wallet/wallet_test.go
+++ b/pkg/wallet/wallet_test.go
@ -181,14 +181,14 @@ func TestWalletGetChangeAddress(t *testing.T) {
 	require.NoError(t, err)
 	sh := w1.GetChangeAddress()
 	// No default address, the first one is used.
-	expected, err := address.StringToUint160("AQyx83BYr1PkyYhZhUAogaHdhkLVHn6htY")
+	expected, err := address.StringToUint160("ASW1VhcukJRrukCXRipY4BE9d9zy4mAYsR")
 	require.NoError(t, err)
 	require.Equal(t, expected, sh)
 	w2, err := NewWalletFromFile("testdata/wallet2.json")
 	require.NoError(t, err)
 	sh = w2.GetChangeAddress()
 	// Default address.
-	expected, err = address.StringToUint160("AdB6ayKfBRJZasiXX4JL5N2YtmxftNp1b3")
+	expected, err = address.StringToUint160("Aaidx8VxYVjpD6knF8toWG7WquQjQFWcZB")
 	require.NoError(t, err)
 	require.Equal(t, expected, sh)
 }