diff --git a/ethchain/asm.go b/ethchain/asm.go
index 2697953fd8..9f99b0c48d 100644
--- a/ethchain/asm.go
+++ b/ethchain/asm.go
@@ -25,7 +25,7 @@ func Disassemble(script []byte) (asm []string) {
 			pc.Add(pc, ethutil.Big1)
 			a := int64(op) - int64(PUSH1) + 1
 			if int(pc.Int64()+a) > len(script) {
-				return nil
+				return
 			}
 
 			data := script[pc.Int64() : pc.Int64()+a]
@@ -40,5 +40,5 @@ func Disassemble(script []byte) (asm []string) {
 		pc.Add(pc, ethutil.Big1)
 	}
 
-	return
+	return asm
 }
diff --git a/ethchain/vm.go b/ethchain/vm.go
index a9bed1eca9..4cbb4e1c4b 100644
--- a/ethchain/vm.go
+++ b/ethchain/vm.go
@@ -563,10 +563,9 @@ func (vm *Vm) RunClosure(closure *Closure) (ret []byte, err error) {
 			}
 
 			code := closure.Script[cOff : cOff+l]
-			//fmt.Println("len:", l, "code off:", cOff, "mem off:", mOff)
+			fmt.Println("len:", l, "code off:", cOff, "mem off:", mOff)
 
 			mem.Set(mOff, l, code)
-			//fmt.Println(Code(mem.Get(mOff, l)))
 		case GASPRICE:
 			stack.Push(closure.Price)
 
@@ -673,6 +672,8 @@ func (vm *Vm) RunClosure(closure *Closure) (ret []byte, err error) {
 			stack.Push(pc)
 		case MSIZE:
 			stack.Push(big.NewInt(int64(mem.Len())))
+
+			vm.Printf(" => %v", mem.Len()).Endl()
 		case GAS:
 			stack.Push(closure.Gas)
 			// 0x60 range
diff --git a/ethstate/state_object.go b/ethstate/state_object.go
index d8513f37d4..6b00c53698 100644
--- a/ethstate/state_object.go
+++ b/ethstate/state_object.go
@@ -11,7 +11,7 @@ import (
 type Code []byte
 
 func (self Code) String() string {
-	return "" //strings.Join(Disassemble(self), " ")
+	return string(self) //strings.Join(Disassemble(self), " ")
 }
 
 type Storage map[string]*ethutil.Value
diff --git a/ethvm/asm.go b/ethvm/asm.go
index fd559d1dc8..7ff15a240d 100644
--- a/ethvm/asm.go
+++ b/ethvm/asm.go
@@ -18,7 +18,7 @@ func Disassemble(script []byte) (asm []string) {
 		// Get the opcode (it must be an opcode!)
 		op := OpCode(val)
 
-		asm = append(asm, fmt.Sprintf("%04v: %v", pc, op))
+		asm = append(asm, fmt.Sprintf("%v", op))
 
 		switch op {
 		case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
@@ -32,7 +32,7 @@ func Disassemble(script []byte) (asm []string) {
 			if len(data) == 0 {
 				data = []byte{0}
 			}
-			asm = append(asm, fmt.Sprintf("%04v: 0x%x", pc, data))
+			asm = append(asm, fmt.Sprintf("0x%x", data))
 
 			pc.Add(pc, big.NewInt(a-1))
 		}
diff --git a/ethvm/vm.go b/ethvm/vm.go
index 2a83bae3d4..1f0ae89916 100644
--- a/ethvm/vm.go
+++ b/ethvm/vm.go
@@ -48,7 +48,6 @@ type Environment interface {
 	Coinbase() []byte
 	Time() int64
 	Difficulty() *big.Int
-	Data() []string
 	Value() *big.Int
 }
 
@@ -420,7 +419,7 @@ func (self *Vm) RunClosure(closure *Closure) (ret []byte, err error) {
 			require(2)
 			val, th := stack.Popn()
 			if th.Cmp(big.NewInt(32)) < 0 && th.Cmp(big.NewInt(int64(len(val.Bytes())))) < 0 {
-				byt := big.NewInt(int64(val.Bytes()[th.Int64()]))
+				byt := big.NewInt(int64(ethutil.LeftPadBytes(val.Bytes(), 32)[th.Int64()]))
 				stack.Push(byt)
 
 				self.Printf(" => 0x%x", byt.Bytes())
@@ -530,10 +529,8 @@ func (self *Vm) RunClosure(closure *Closure) (ret []byte, err error) {
 			}
 
 			code := closure.Code[cOff : cOff+l]
-			//fmt.Println("len:", l, "code off:", cOff, "mem off:", mOff)
 
 			mem.Set(mOff, l, code)
-			//fmt.Println(Code(mem.Get(mOff, l)))
 		case GASPRICE:
 			stack.Push(closure.Price)
 
@@ -638,7 +635,7 @@ func (self *Vm) RunClosure(closure *Closure) (ret []byte, err error) {
 			// Add the change to manifest
 			self.env.State().Manifest().AddStorageChange(closure.Object(), loc.Bytes(), val)
 
-			self.Printf(" {0x%x : 0x%x}", loc, val)
+			self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
 		case JUMP:
 			require(1)
 			pc = stack.Pop()
@@ -802,7 +799,6 @@ func (self *Vm) RunClosure(closure *Closure) (ret []byte, err error) {
 			return closure.Return(nil), nil
 		default:
 			vmlogger.Debugf("(pc) %-3v Invalid opcode %x\n", pc, op)
-			fmt.Println(ethstate.Code(closure.Code))
 
 			return closure.Return(nil), fmt.Errorf("Invalid opcode %x", op)
 		}
diff --git a/ethvm/vm_test.go b/ethvm/vm_test.go
index f0bdc8e2cf..501d0c2841 100644
--- a/ethvm/vm_test.go
+++ b/ethvm/vm_test.go
@@ -15,17 +15,14 @@ import (
 type TestEnv struct {
 }
 
-func (self TestEnv) GetObject() Object               { return nil }
-func (self TestEnv) Origin() []byte                  { return nil }
-func (self TestEnv) BlockNumber() *big.Int           { return nil }
-func (self TestEnv) PrevHash() []byte                { return nil }
-func (self TestEnv) Coinbase() []byte                { return nil }
-func (self TestEnv) Time() int64                     { return 0 }
-func (self TestEnv) Difficulty() *big.Int            { return nil }
-func (self TestEnv) Data() []string                  { return nil }
-func (self TestEnv) Value() *big.Int                 { return nil }
-func (self TestEnv) GetBalance(addr []byte) *big.Int { return nil }
-func (self TestEnv) State() *ethstate.State          { return nil }
+func (self TestEnv) Origin() []byte         { return nil }
+func (self TestEnv) BlockNumber() *big.Int  { return nil }
+func (self TestEnv) PrevHash() []byte       { return nil }
+func (self TestEnv) Coinbase() []byte       { return nil }
+func (self TestEnv) Time() int64            { return 0 }
+func (self TestEnv) Difficulty() *big.Int   { return nil }
+func (self TestEnv) Value() *big.Int        { return nil }
+func (self TestEnv) State() *ethstate.State { return nil }
 
 func TestVm(t *testing.T) {
 	ethlog.AddLogSystem(ethlog.NewStdLogSystem(os.Stdout, log.LstdFlags, ethlog.LogLevel(4)))