+#define FXSIZE (MAX_BUF_XSIZE * TILEX)
+#define FYSIZE (MAX_BUF_YSIZE * TILEY)
+#endif
+
+#if 1
+extern int REAL_SX, REAL_SY;
+#else
+#define REAL_SX (SX - 2)
+#define REAL_SY (SY - 2)
+#endif
+#define FULL_SXSIZE (2 + SXSIZE + 2)
+#define FULL_SYSIZE (2 + SYSIZE + 2)