Add BGPUT argument check

2016-12-31 21:55:11 +09:00
parent 166193764b
commit a9f8f178a1
1 changed files with 8 additions and 0 deletions
--- a/SMILEBASIC/builtinfunctions.d
+++ b/SMILEBASIC/builtinfunctions.d
@@ -2360,6 +2360,14 @@ class BuiltinFunction
        {
            throw new OutOfRange("BGPUT", 1);
        }
+        if (x < 0 || x >= p.getBG(layer).width)
+        {
+            throw new OutOfRange("BGPUT", 2);
+        }
+        if (y < 0 || y >= p.getBG(layer).height)
+        {
+            throw new OutOfRange("BGPUT", 3);
+        }
        p.getBG(layer).put(x, y, screendata);
    }
    static void BGHOME(PetitComputer p, int layer, int x, int y)