Couple of minor issues fixed

* CALLVALUE pushed incorrect value to the stack
* Set execution model to closure

ethstate/state.go

@@ -94,11 +94,15 @@ func (self *State) GetStateObject(addr []byte) *StateObject {
 	}
 
 	stateObject = NewStateObjectFromBytes(addr, []byte(data))
-	self.stateObjects[string(addr)] = stateObject
+	self.SetStateObject(stateObject)
 
 	return stateObject
 }
 
+func (self *State) SetStateObject(object *StateObject) {
+	self.stateObjects[string(object.address)] = object
+}
+
 // Retrieve a state object or create a new state object if nil
 func (self *State) GetOrNewStateObject(addr []byte) *StateObject {
 	stateObject := self.GetStateObject(addr)

ethvm/closure.go

@@ -23,6 +23,7 @@ type Closure struct {
 	object  *ethstate.StateObject
 	Code    []byte
 	message *ethstate.Message
+	exe     *Execution
 
 	Gas, UsedGas, Price *big.Int
 

ethvm/environment.go

@@ -16,7 +16,6 @@ type Environment interface {
 	Coinbase() []byte
 	Time() int64
 	Difficulty() *big.Int
-	Value() *big.Int
 	BlockHash() []byte
 }
 

ethvm/execution.go

@@ -66,6 +66,7 @@ func (self *Execution) Exec(codeAddr []byte, caller ClosureRef) (ret []byte, err
 
 			// Create a new callable closure
 			c := NewClosure(msg, caller, stateObject, code, self.gas, self.price)
+			c.exe = self
 			// Executer the closure and get the return value (if any)
 			ret, _, err = c.Call(self.vm, self.input)
 

ethvm/vm.go

@@ -392,7 +392,7 @@ func (self *Vm) RunClosure(closure *Closure) (ret []byte, err error) {
 			stack.Push(ethutil.BigD(caller))
 
 		case CALLVALUE:
-			value := self.env.Value()
+			value := closure.exe.value
 
 			stack.Push(value)
 

ethvm/vm_debug.go

@@ -482,7 +482,7 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
 
 			self.Printf(" => %x", caller)
 		case CALLVALUE:
-			value := self.env.Value()
+			value := closure.exe.value
 
 			stack.Push(value)
 
@@ -674,7 +674,10 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
 			val, loc := stack.Popn()
 			closure.SetStorage(loc, ethutil.NewValue(val))
 
-			closure.message.AddStorageChange(loc.Bytes())
+			// Debug sessions are allowed to run without message
+			if closure.message != nil {
+				closure.message.AddStorageChange(loc.Bytes())
+			}
 
 			self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
 		case JUMP: