fix assignment

ExprPrimaryNodes.py

@@ -358,6 +358,7 @@ class AssignNode(ASTNode):
 
         self.code += p("pop", "ebx")
         self.code += p("mov", "[eax]", "ebx")
+        self.code += p("mov", "eax", "ebx") # result of assignment is its own value
         self.code += ("; End of assignment\n")