sub_812D420

1 files changed, 28 insertions, 0 deletions

diff --git a/src/fame_checker.c b/src/fame_checker.c
index 436e60b3a..543fd8b87 100644
--- a/src/fame_checker.c
+++ b/src/fame_checker.c
@@ -671,3 +671,31 @@ void sub_812D388(void)
         }
     }
 }
+
+void sub_812D420(void)
+{
+    void * vram = (void *)VRAM;
+    DmaClearLarge16(3, vram, VRAM_SIZE, 0x1000);
+    DmaClear32(3, OAM, OAM_SIZE);
+    DmaClear16(3, PLTT, PLTT_SIZE);
+    SetGpuReg(REG_OFFSET_DISPCNT,  0);
+    SetGpuReg(REG_OFFSET_BG0CNT,   0);
+    SetGpuReg(REG_OFFSET_BG0HOFS,  0);
+    SetGpuReg(REG_OFFSET_BG0VOFS,  0);
+    SetGpuReg(REG_OFFSET_BG1CNT,   0);
+    SetGpuReg(REG_OFFSET_BG1HOFS,  0);
+    SetGpuReg(REG_OFFSET_BG1VOFS,  0);
+    SetGpuReg(REG_OFFSET_BG2CNT,   0);
+    SetGpuReg(REG_OFFSET_BG2HOFS,  0);
+    SetGpuReg(REG_OFFSET_BG2VOFS,  0);
+    SetGpuReg(REG_OFFSET_BG3CNT,   0);
+    SetGpuReg(REG_OFFSET_BG3HOFS,  0);
+    SetGpuReg(REG_OFFSET_BG3VOFS,  0);
+    SetGpuReg(REG_OFFSET_WIN0H,    0);
+    SetGpuReg(REG_OFFSET_WIN0V,    0);
+    SetGpuReg(REG_OFFSET_WININ,    0);
+    SetGpuReg(REG_OFFSET_WINOUT,   0);
+    SetGpuReg(REG_OFFSET_BLDCNT,   0);
+    SetGpuReg(REG_OFFSET_BLDALPHA, 0);
+    SetGpuReg(REG_OFFSET_BLDY,     0);
+}