1 files changed, 2 insertions, 0 deletions

diff --git a/src/common.h b/src/common.h
index aa7261e..cf263db 100644
--- a/src/common.h
+++ b/src/common.h
@@ -147,6 +147,7 @@ typedef Color Scanline[SCREEN_WIDTH];
 #define PAL_BUFFER_SPRITES ((u16*)(MEM_PAL + 0x200))
 #define PAL_BANK_BG        ((Palette*) MEM_PAL)
 #define PAL_BANK_SPRITES   ((Palette*)(MEM_PAL + 0x200))
+static u16 *backbuffer = ((vu16*)(MEM_VRAM + 0x0A000));
 
 //
 // Sprites.
@@ -198,6 +199,7 @@ typedef Color Scanline[SCREEN_WIDTH];
 
 static inline void
 flip_page(void) {
+    backbuffer = (u16*)((u32)backbuffer ^ 0x0A000);
     DISP_CTRL ^= DISP_PAGE;
 }