1 files changed, 120 insertions, 4 deletions
diff --git a/src/clear_save_data_menu.c b/src/clear_save_data_menu.c
index c3879339d..11eda7209 100644
--- a/src/clear_save_data_menu.c
+++ b/src/clear_save_data_menu.c
@@ -7,15 +7,18 @@
 #include "palette.h"
 #include "sound.h"
 
-extern bool8 sub_8148970(void);
-extern void sub_8148830(u8);
-extern void sub_81488BC(u8);
-
 extern u8 gSystemText_ClearAllSaveDataPrompt[];
 extern u8 gSystemText_ClearingData[];
 extern u8 *gUnknown_08376D74[][2];
 
+void c2_clear_save_data_screen_2(void);
+void sub_814881C(void);
+void sub_8148830(u8);
+void sub_81488BC(u8);
 void sub_8148930(u8);
+void sub_8148954(void);
+static void VBlankCB_InitMenu(void);
+u8 sub_8148970(void);
 void sub_8148B34(void);
 
 void c2_clear_save_data_screen_2(void)
@@ -69,3 +72,116 @@ void sub_81488BC(u8 taskId)
     AnimateSprites();
     BuildOamBuffer();
 }
+
+void sub_8148930(u8 r0_in)
+{
+    calls_flash_erase_block();
+    DestroyTask(r0_in);
+    SetMainCallback2(sub_8148B34);
+}
+
+void sub_8148954(void)
+{
+    RunTasks();
+    UpdatePaletteFade();
+}
+
+static void VBlankCB_InitMenu(void)
+{
+    TransferPlttBuffer();
+}
+
+u8 sub_8148970(void)
+{
+    u16 i;
+    u16 ime;
+
+    switch (gMain.state)
+    {
+        case 0:
+        default:
+            SetVBlankCallback(NULL);
+
+            REG_DISPCNT = 0;
+            REG_BG0HOFS = 0;
+            REG_BG0VOFS = 0;
+            REG_BG3HOFS = 0;
+            REG_BG3VOFS = 0;
+            REG_WIN0H = 0;
+            REG_WIN0V = 0;
+            REG_WININ = 0;
+            REG_WINOUT = 0;
+            REG_BLDCNT = 0;
+            REG_BLDALPHA = 0;
+            REG_BLDY = 0;
+
+            DmaFill16(3, 0, (void *)VRAM, VRAM_SIZE);
+            DmaFill32(3, 0, (void *)OAM, OAM_SIZE);
+            DmaFill16(3, 0, (void *)(PLTT + 2), PLTT_SIZE - 2);
+
+            ResetPaletteFade();
+
+            gPlttBufferUnfaded[0] = 0x7fff;
+            gPlttBufferFaded[0] = 0x7fff;
+            gPlttBufferUnfaded[1] = 0x3945;
+            gPlttBufferFaded[1] = 0x3945;
+
+            i = 0;
+            do
+            {
+                ((vu16 *)(VRAM + 0x20))[i] = 0x1111;
+                i++;
+            } while (i < 0x10);
+
+            i = 0;
+            do
+            {
+                ((vu16 *)(VRAM + 0x3800))[i] = 0x0001;
+                i++;
+            } while (i < 0x500);
+
+            ResetTasks();
+            ResetSpriteData();
+
+            SetUpWindowConfig(&gWindowConfig_81E6C3C);
+            InitMenuWindow(&gWindowConfig_81E6CE4);
+            BeginNormalPaletteFade(-1, 0, 0x10, 0, 0xffff);
+
+            ime = REG_IME;
+            REG_IME = 0;
+            REG_IE |= INTR_FLAG_VBLANK;
+            REG_IME = ime;
+            REG_DISPSTAT |= DISPSTAT_VBLANK_INTR;
+
+            SetVBlankCallback(VBlankCB_InitMenu);
+
+            REG_BG3CNT = 0x0703;
+            REG_DISPCNT = 0x0900;
+            gMain.state = 1;
+            return 0;
+        case 1:
+            UpdatePaletteFade();
+            if (gPaletteFade.active)
+                return 0;
+            SetMainCallback2(sub_8148954);
+            return 1;
+    }
+}
+
+void sub_8148B34(void)
+{
+    switch (gMain.state)
+    {
+        case 0:
+        default:
+            BeginNormalPaletteFade(-1, 0, 0, 0x10, 0xffff);
+            gMain.state = 1;
+            break;
+        case 1:
+            UpdatePaletteFade();
+            if (gPaletteFade.active)
+                return;
+            DoSoftReset();
+            break;
+    }
+}