Fixed a bug

git-svn-id: svn://svn.cc65.org/cc65/trunk@1922 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/cc65/expr.c

@@ -2156,8 +2156,16 @@ static void parseadd (int k, ExprDesc* lval)
     	      	flags = CF_PTR;
     	      	lval->Type = lval2.Type;
        	    } else if (IsClassInt (lhst) && IsClassInt (rhst)) {
-    	      	/* Integer addition */
-       	       	flags = typeadjust (lval, &lval2, 0);
+    	      	/* Integer addition. Note: Result is never constant.
+                 * Problem here is that typeadjust does not know if the
+                 * variable is an rvalue or lvalue, so if both operands
+                 * are dereferenced constant numeric addresses, typeadjust
+                 * thinks the operation works on constants. Removing
+                 * CF_CONST here means handling the symptoms, however, the
+                 * whole parser is such a mess that I fear to break anything
+                 * when trying to apply another solution.
+                 */
+       	       	flags = typeadjust (lval, &lval2, 0) & ~CF_CONST;
     	    } else {
        	       	/* OOPS */
     	    	Error ("Invalid operands for binary operator `+'");