1 files changed, 3 insertions, 0 deletions
diff --git a/vdp.h b/vdp.h
index 22a5c2f..a11c0a4 100644
--- a/vdp.h
+++ b/vdp.h
@@ -13,6 +13,9 @@
 
 #define VDP_REGS 24
 #define CRAM_SIZE 64
+#define SHADOW_OFFSET CRAM_SIZE
+#define HIGHLIGHT_OFFSET (SHADOW_OFFSET+CRAM_SIZE)
+#define MODE4_OFFSET (HIGHLIGHT_OFFSET+CRAM_SIZE)
 #define VSRAM_SIZE 40
 #define VRAM_SIZE (64*1024)
 #define BORDER_LEFT 13