through sub_80F5334

4 files changed, 131 insertions, 283 deletions

diff --git a/asm/save_failed_screen.s b/asm/save_failed_screen.s
index aa9d375a3..4d95ba17d 100644
--- a/asm/save_failed_screen.s
+++ b/asm/save_failed_screen.s
@@ -5,289 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_80F50F4
-sub_80F50F4: @ 80F50F4
-	ldr r1, _080F50FC @ =gUnknown_3005430
-	movs r0, 0
-	str r0, [r1]
-	bx lr
-	.align 2, 0
-_080F50FC: .4byte gUnknown_3005430
-	thumb_func_end sub_80F50F4
-
-	thumb_func_start DoSaveFailedScreen
-DoSaveFailedScreen: @ 80F5100
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, _080F5110 @ =gUnknown_203AB4C
-	strh r0, [r1]
-	ldr r1, _080F5114 @ =gUnknown_3005430
-	movs r0, 0x1
-	str r0, [r1]
-	bx lr
-	.align 2, 0
-_080F5110: .4byte gUnknown_203AB4C
-_080F5114: .4byte gUnknown_3005430
-	thumb_func_end DoSaveFailedScreen
-
-	thumb_func_start sub_80F5118
-sub_80F5118: @ 80F5118
-	push {lr}
-	ldr r0, _080F5130 @ =gUnknown_203AB50
-	ldrb r1, [r0]
-	adds r2, r0, 0
-	cmp r1, 0x8
-	bls _080F5126
-	b _080F52D6
-_080F5126:
-	lsls r0, r1, 2
-	ldr r1, _080F5134 @ =_080F5138
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_080F5130: .4byte gUnknown_203AB50
-_080F5134: .4byte _080F5138
-	.align 2, 0
-_080F5138:
-	.4byte _080F515C
-	.4byte _080F5190
-	.4byte _080F51B4
-	.4byte _080F51E4
-	.4byte _080F5204
-	.4byte _080F5240
-	.4byte _080F5280
-	.4byte _080F5298
-	.4byte _080F52B4
-_080F515C:
-	ldr r0, _080F5168 @ =gUnknown_3005430
-	ldr r0, [r0]
-	cmp r0, 0
-	bne _080F516C
-	movs r0, 0
-	b _080F52D8
-	.align 2, 0
-_080F5168: .4byte gUnknown_3005430
-_080F516C:
-	ldr r0, _080F5184 @ =gMPlayInfo_BGM
-	ldr r1, _080F5188 @ =0x0000ffff
-	movs r2, 0x80
-	bl m4aMPlayVolumeControl
-	bl SaveCallbacks
-	ldr r1, _080F518C @ =gUnknown_203AB50
-	movs r0, 0x1
-	strb r0, [r1]
-	b _080F52D6
-	.align 2, 0
-_080F5184: .4byte gMPlayInfo_BGM
-_080F5188: .4byte 0x0000ffff
-_080F518C: .4byte gUnknown_203AB50
-_080F5190:
-	bl SaveMapTiles
-	bl SaveMapGPURegs
-	bl SaveMapTextColors
-	bl sub_80F52EC
-	movs r0, 0
-	movs r1, 0
-	bl SetGpuReg
-	ldr r1, _080F51B0 @ =gUnknown_203AB50
-	movs r0, 0x2
-	strb r0, [r1]
-	b _080F52D6
-	.align 2, 0
-_080F51B0: .4byte gUnknown_203AB50
-_080F51B4:
-	ldr r1, _080F51D8 @ =0x0600c000
-	movs r2, 0x80
-	lsls r2, 7
-	movs r0, 0
-	movs r3, 0
-	bl RequestDma3Fill
-	ldr r0, _080F51DC @ =gUnknown_841EE44
-	movs r1, 0xA0
-	lsls r1, 19
-	movs r2, 0x20
-	movs r3, 0
-	bl RequestDma3Copy
-	ldr r1, _080F51E0 @ =gUnknown_203AB50
-	movs r0, 0x3
-	strb r0, [r1]
-	b _080F52D6
-	.align 2, 0
-_080F51D8: .4byte 0x0600c000
-_080F51DC: .4byte gUnknown_841EE44
-_080F51E0: .4byte gUnknown_203AB50
-_080F51E4:
-	bl sub_80F53E8
-	ldr r0, _080F51FC @ =gUnknown_8418C83
-	bl sub_80F5404
-	bl sub_80F53CC
-	ldr r1, _080F5200 @ =gUnknown_203AB50
-	movs r0, 0x4
-	strb r0, [r1]
-	b _080F52D6
-	.align 2, 0
-_080F51FC: .4byte gUnknown_8418C83
-_080F5200: .4byte gUnknown_203AB50
-_080F5204:
-	movs r0, 0x50
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x10
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x12
-	movs r1, 0
-	bl SetGpuReg
-	ldr r1, _080F5238 @ =0x00001f0c
-	movs r0, 0x8
-	bl SetGpuReg
-	movs r1, 0x80
-	lsls r1, 1
-	movs r0, 0
-	bl SetGpuReg
-	ldr r1, _080F523C @ =gUnknown_203AB50
-	movs r0, 0x5
-	strb r0, [r1]
-	b _080F52D6
-	.align 2, 0
-_080F5238: .4byte 0x00001f0c
-_080F523C: .4byte gUnknown_203AB50
-_080F5240:
-	bl sub_80F5458
-	adds r1, r0, 0
-	cmp r1, 0x1
-	bne _080F5260
-	ldr r0, _080F5258 @ =gSaveSucceeded
-	strh r1, [r0]
-	ldr r0, _080F525C @ =gUnknown_8418E09
-	bl sub_80F5404
-	b _080F526C
-	.align 2, 0
-_080F5258: .4byte gSaveSucceeded
-_080F525C: .4byte gUnknown_8418E09
-_080F5260:
-	ldr r0, _080F5274 @ =gSaveSucceeded
-	movs r1, 0xFF
-	strh r1, [r0]
-	ldr r0, _080F5278 @ =gUnknown_8418CD9
-	bl sub_80F5404
-_080F526C:
-	ldr r1, _080F527C @ =gUnknown_203AB50
-	movs r0, 0x6
-	strb r0, [r1]
-	b _080F52D6
-	.align 2, 0
-_080F5274: .4byte gSaveSucceeded
-_080F5278: .4byte gUnknown_8418CD9
-_080F527C: .4byte gUnknown_203AB50
-_080F5280:
-	ldr r0, _080F5294 @ =gMain
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0x1
-	ands r0, r1
-	cmp r0, 0
-	beq _080F52D6
-	movs r0, 0x7
-	strb r0, [r2]
-	b _080F52D6
-	.align 2, 0
-_080F5294: .4byte gMain
-_080F5298:
-	movs r0, 0
-	movs r1, 0
-	bl SetGpuReg
-	bl RestoreMapTiles
-	bl sub_80F52EC
-	ldr r1, _080F52B0 @ =gUnknown_203AB50
-	movs r0, 0x8
-	strb r0, [r1]
-	b _080F52D6
-	.align 2, 0
-_080F52B0: .4byte gUnknown_203AB50
-_080F52B4:
-	ldr r0, _080F52DC @ =gMPlayInfo_BGM
-	ldr r1, _080F52E0 @ =0x0000ffff
-	movs r2, 0x80
-	lsls r2, 1
-	bl m4aMPlayVolumeControl
-	bl RestoreMapTextColors
-	bl RestoreGPURegs
-	bl RestoreCallbacks
-	ldr r0, _080F52E4 @ =gUnknown_3005430
-	movs r1, 0
-	str r1, [r0]
-	ldr r0, _080F52E8 @ =gUnknown_203AB50
-	strb r1, [r0]
-_080F52D6:
-	movs r0, 0x1
-_080F52D8:
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080F52DC: .4byte gMPlayInfo_BGM
-_080F52E0: .4byte 0x0000ffff
-_080F52E4: .4byte gUnknown_3005430
-_080F52E8: .4byte gUnknown_203AB50
-	thumb_func_end sub_80F5118
-
-	thumb_func_start sub_80F52EC
-sub_80F52EC: @ 80F52EC
-	push {r4,r5,lr}
-	movs r1, 0
-	ldr r5, _080F5310 @ =0x000001ff
-	movs r4, 0xA0
-	lsls r4, 19
-	movs r2, 0
-	ldr r3, _080F5314 @ =0x05000200
-_080F52FA:
-	adds r0, r1, r4
-	strh r2, [r0]
-	adds r0, r1, r3
-	strh r2, [r0]
-	adds r1, 0x2
-	cmp r1, r5
-	ble _080F52FA
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F5310: .4byte 0x000001ff
-_080F5314: .4byte 0x05000200
-	thumb_func_end sub_80F52EC
-
-	thumb_func_start sub_80F5318
-sub_80F5318: @ 80F5318
-	push {lr}
-	ldr r0, _080F532C @ =gDecompressionBuffer + 0x3800
-	ldr r1, _080F5330 @ =0x0600f800
-	movs r2, 0xA0
-	lsls r2, 3
-	movs r3, 0
-	bl RequestDma3Copy
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F532C: .4byte gDecompressionBuffer + 0x3800
-_080F5330: .4byte 0x0600f800
-	thumb_func_end sub_80F5318
-
-	thumb_func_start sub_80F5334
-sub_80F5334: @ 80F5334
-	push {lr}
-	ldr r0, _080F5348 @ =gDecompressionBuffer + 0x020
-	ldr r1, _080F534C @ =0x0600c020
-	movs r2, 0x8C
-	lsls r2, 6
-	movs r3, 0
-	bl RequestDma3Copy
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F5348: .4byte gDecompressionBuffer + 0x020
-_080F534C: .4byte 0x0600c020
-	thumb_func_end sub_80F5334
-
 	thumb_func_start sub_80F5350
 sub_80F5350: @ 80F5350
 	push {r4-r7,lr}
diff --git a/include/strings.h b/include/strings.h
index ec8533a54..c463b45b7 100644
--- a/include/strings.h
+++ b/include/strings.h
@@ -1033,4 +1033,9 @@ extern const u8 gText_RegionMap_AreaDesc_AlteringCave[];
 extern const u8 gText_RegionMap_AreaDesc_PatternBush[];
 extern const u8 gText_RegionMap_AreaDesc_DottedHole[];
 
+// save_failed_screen
+extern const u8 gUnknown_8418C83[];
+extern const u8 gUnknown_8418CD9[];
+extern const u8 gUnknown_8418E09[];
+
 #endif //GUARD_STRINGS_H
diff --git a/ld_script.txt b/ld_script.txt
index d6dec1ea3..8b3da8303 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -217,6 +217,7 @@ SECTIONS {
         src/hall_of_fame.o(.text);
         src/credits.o(.text);
         src/diploma.o(.text);
+        src/save_failed_screen.o(.text);
         asm/save_failed_screen.o(.text);
         asm/clear_save_data_screen.o(.text);
         src/evolution_graphics.o(.text);
diff --git a/src/save_failed_screen.c b/src/save_failed_screen.c
new file mode 100644
index 000000000..dda0515a0
--- /dev/null
+++ b/src/save_failed_screen.c
@@ -0,0 +1,125 @@
+#include "global.h"
+#include "decompress.h"
+#include "dma3.h"
+#include "gpu_regs.h"
+#include "help_system.h"
+#include "m4a.h"
+#include "save.h"
+#include "save_failed_screen.h"
+#include "strings.h"
+
+bool32 gUnknown_3005430;
+EWRAM_DATA u16 gUnknown_203AB4C = SAVE_NORMAL;
+EWRAM_DATA u8 gUnknown_203AB50 = 0;
+
+void sub_80F52EC(void);
+void sub_80F53CC(void);
+void sub_80F53E8(void);
+void sub_80F5404(const u8 *a0);
+bool32 sub_80F5458(void);
+
+extern const u16 gUnknown_841EE44[];
+
+void sub_80F50F4(void)
+{
+    gUnknown_3005430 = FALSE;
+}
+
+void DoSaveFailedScreen(u8 saveType)
+{
+    gUnknown_203AB4C = saveType;
+    gUnknown_3005430 = TRUE;
+}
+
+bool32 sub_80F5118(void)
+{
+    switch (gUnknown_203AB50)
+    {
+    case 0:
+        if (!gUnknown_3005430)
+            return FALSE;
+        m4aMPlayVolumeControl(&gMPlayInfo_BGM, 0xFFFF, 128);
+        SaveCallbacks();
+        gUnknown_203AB50 = 1;
+        break;
+    case 1:
+        SaveMapTiles();
+        SaveMapGPURegs();
+        SaveMapTextColors();
+        sub_80F52EC();
+        SetGpuReg(REG_OFFSET_DISPCNT, 0);
+        gUnknown_203AB50 = 2;
+        break;
+    case 2:
+        RequestDma3Fill(0, (void *)BG_CHAR_ADDR(3), BG_CHAR_SIZE, 0);
+        RequestDma3Copy(gUnknown_841EE44, (void *)PLTT, 0x20, 0);
+        gUnknown_203AB50 = 3;
+        break;
+    case 3:
+        sub_80F53E8();
+        sub_80F5404(gUnknown_8418C83);
+        sub_80F53CC();
+        gUnknown_203AB50 = 4;
+        break;
+    case 4:
+        SetGpuReg(REG_OFFSET_BLDCNT, 0);
+        SetGpuReg(REG_OFFSET_BG0HOFS, 0);
+        SetGpuReg(REG_OFFSET_BG0VOFS, 0);
+        SetGpuReg(REG_OFFSET_BG0CNT, BGCNT_PRIORITY(0) | BGCNT_CHARBASE(3) | BGCNT_SCREENBASE(31));
+        SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_BG0_ON);
+        gUnknown_203AB50 = 5;
+        break;
+    case 5:
+        if (sub_80F5458() == TRUE)
+        {
+            gSaveSucceeded = SAVE_STATUS_OK;
+            sub_80F5404(gUnknown_8418E09);
+        }
+        else
+        {
+            gSaveSucceeded = SAVE_STATUS_ERROR;
+            sub_80F5404(gUnknown_8418CD9);
+        }
+        gUnknown_203AB50 = 6;
+        break;
+    case 6:
+        if (JOY_NEW(A_BUTTON))
+            gUnknown_203AB50 = 7;
+        break;
+    case 7:
+        SetGpuReg(REG_OFFSET_DISPCNT, 0);
+        RestoreMapTiles();
+        sub_80F52EC();
+        gUnknown_203AB50 = 8;
+        break;
+    case 8:
+        m4aMPlayVolumeControl(&gMPlayInfo_BGM, 0xFFFF, 256);
+        RestoreMapTextColors();
+        RestoreGPURegs();
+        RestoreCallbacks();
+        gUnknown_3005430 = FALSE;
+        gUnknown_203AB50 = 0;
+        break;
+    }
+    return TRUE;
+}
+
+void sub_80F52EC(void)
+{
+    int i;
+    for (i = 0; i < BG_PLTT_SIZE; i += sizeof(u16))
+    {
+        *((u16 *)(BG_PLTT + i)) = RGB_BLACK;
+        *((u16 *)(OBJ_PLTT + i)) = RGB_BLACK;
+    }
+}
+
+void sub_80F5318(void)
+{
+    RequestDma3Copy(gDecompressionBuffer + 0x3800, (void *)BG_SCREEN_ADDR(31), 0x500, 0);
+}
+
+void sub_80F5334(void)
+{
+    RequestDma3Copy(gDecompressionBuffer + 0x020, (void *)BG_CHAR_ADDR(3) + 0x20, 0x2300, 0);
+}