1 files changed, 4 insertions, 10 deletions

diff --git a/src/gamestate.cpp b/src/gamestate.cpp
index 57dbe2f..285c151 100644
--- a/src/gamestate.cpp
+++ b/src/gamestate.cpp
@@ -427,34 +427,28 @@ void GameState::parse( const AstBranch::NodeList &lCode )
                 case AstNode::tPlusStore:
                         {
                                 Variable y = popDeref();
-                                Variable x = pop();
-                                deref( x ) += y;
+                                deref( lStack.peek(), true ) += y;
                         }
                         break;
 
                 case AstNode::tMinusStore:
                         {
                                 Variable y = popDeref();
-                                Variable x = pop();
-                                deref( x ) -= y;
+                                deref( lStack.peek(), true ) -= y;
                         }
                         break;
 
                 case AstNode::tDivideStore:
                         {
                                 Variable y = popDeref();
-                                Variable x = pop();
-                                VariableRef r = x.getVariableRef();
-                                setVariable( r.sName, getVariable( r.sName, r.sid ) / y, r.sid );
+                                deref( lStack.peek(), true ) /= y;
                         }
                         break;
 
                 case AstNode::tMultiplyStore:
                         {
                                 Variable y = popDeref();
-                                Variable x = pop();
-                                VariableRef r = x.getVariableRef();
-                                setVariable( r.sName, getVariable( r.sName, r.sid ) * y, r.sid );
+                                deref( lStack.peek(), true ) *= y;
                         }
                         break;