More of title_screen.c

asm/title_screen.s

@@ -5,346 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_0814A178
-sub_0814A178: @ 0x0814A178
-	push {r4, r5, r6, r7, lr}
-	adds r6, r0, #0
-	movs r1, #0x9a
-	lsls r1, r1, #1
-	adds r0, r6, r1
-	ldrh r4, [r0]
-	adds r4, #1
-	movs r7, #0
-	strh r4, [r0]
-	ldr r5, _0814A1C0 @ =gBldRegs
-	movs r1, #0
-	ldrsh r0, [r0, r1]
-	lsls r0, r0, #4
-	movs r1, #0xf
-	bl __divsi3
-	movs r1, #0x10
-	subs r1, r1, r0
-	strh r1, [r5, #4]
-	lsls r4, r4, #0x10
-	asrs r4, r4, #0x10
-	cmp r4, #0xe
-	ble _0814A1BA
-	strh r7, [r5, #4]
-	strh r7, [r5, #2]
-	strh r7, [r5]
-	movs r0, #1
-	str r0, [r6, #4]
-	movs r0, #0x98
-	lsls r0, r0, #1
-	adds r1, r6, r0
-	ldr r0, _0814A1C4 @ =sub_0814A420
-	str r0, [r1]
-_0814A1BA:
-	pop {r4, r5, r6, r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0814A1C0: .4byte gBldRegs
-_0814A1C4: .4byte sub_0814A420
-
-	thumb_func_start sub_0814A1C8
-sub_0814A1C8: @ 0x0814A1C8
-	push {r4, r5, r6, lr}
-	adds r2, r0, #0
-	ldrh r1, [r2, #0x12]
-	movs r0, #0x10
-	ands r0, r1
-	cmp r0, #0
-	beq _0814A1E2
-	ldrh r0, [r2, #6]
-	lsls r0, r0, #2
-	movs r1, #0x80
-	lsls r1, r1, #0x12
-	adds r0, r0, r1
-	b _0814A1EA
-_0814A1E2:
-	ldrh r1, [r2, #6]
-	movs r0, #0xc0
-	lsls r0, r0, #0x12
-	adds r0, r1, r0
-_0814A1EA:
-	adds r6, r0, #0
-	movs r5, #0
-_0814A1EE:
-	lsls r0, r5, #2
-	adds r0, r0, r5
-	lsls r0, r0, #3
-	adds r0, #0x10
-	adds r4, r6, r0
-	ldr r0, [r4]
-	cmp r0, #0
-	beq _0814A206
-	bl sub_08157190
-	movs r0, #0
-	str r0, [r4]
-_0814A206:
-	adds r0, r5, #1
-	lsls r0, r0, #0x18
-	lsrs r5, r0, #0x18
-	cmp r5, #6
-	bls _0814A1EE
-	pop {r4, r5, r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-
-	thumb_func_start sub_0814A218
-sub_0814A218: @ 0x0814A218
-	push {lr}
-	sub sp, #4
-	adds r1, r0, #0
-	lsls r1, r1, #0x18
-	mov r2, sp
-	movs r0, #0
-	strh r0, [r2]
-	lsrs r1, r1, #0xa
-	movs r0, #0xc0
-	lsls r0, r0, #0x13
-	adds r1, r1, r0
-	ldr r2, _0814A23C @ =0x01002000
-	mov r0, sp
-	bl CpuSet
-	add sp, #4
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0814A23C: .4byte 0x01002000
-
-	thumb_func_start sub_0814A240
-sub_0814A240: @ 0x0814A240
-	push {lr}
-	sub sp, #4
-	lsls r0, r0, #0x18
-	lsrs r0, r0, #0x18
-	mov r2, sp
-	ldr r3, _0814A26C @ =0x000001FF
-	adds r1, r3, #0
-	strh r1, [r2]
-	movs r1, #0x1f
-	subs r1, r1, r0
-	lsls r1, r1, #0xb
-	movs r0, #0xc0
-	lsls r0, r0, #0x13
-	adds r1, r1, r0
-	ldr r2, _0814A270 @ =0x01000400
-	mov r0, sp
-	bl CpuSet
-	add sp, #4
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0814A26C: .4byte 0x000001FF
-_0814A270: .4byte 0x01000400
-
-	thumb_func_start sub_0814A274
-sub_0814A274: @ 0x0814A274
-	push {r4, lr}
-	adds r4, r0, #0
-	movs r1, #0x9c
-	lsls r1, r1, #1
-	adds r0, r4, r1
-	ldr r2, _0814A2A4 @ =gUnk_08D626F0
-	ldr r1, _0814A2A8 @ =gUnk_08D60A80
-	ldrh r1, [r1]
-	lsls r1, r1, #3
-	adds r2, #4
-	adds r1, r1, r2
-	ldr r1, [r1]
-	ldr r1, [r1]
-	bl sub_0814F3C4
-	movs r0, #0xa2
-	lsls r0, r0, #1
-	adds r1, r4, r0
-	ldr r0, _0814A2AC @ =sub_0814A2B0
-	str r0, [r1]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0814A2A4: .4byte gUnk_08D626F0
-_0814A2A8: .4byte gUnk_08D60A80
-_0814A2AC: .4byte sub_0814A2B0
-
-	thumb_func_start sub_0814A2B0
-sub_0814A2B0: @ 0x0814A2B0
-	push {lr}
-	adds r1, r0, #0
-	ldr r0, [r1, #4]
-	cmp r0, #1
-	bne _0814A2C4
-	movs r0, #0xa2
-	lsls r0, r0, #1
-	adds r1, r1, r0
-	ldr r0, _0814A2C8 @ =sub_0814A2CC
-	str r0, [r1]
-_0814A2C4:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0814A2C8: .4byte sub_0814A2CC
-
-	thumb_func_start sub_0814A2CC
-sub_0814A2CC: @ 0x0814A2CC
-	push {r4, r5, lr}
-	adds r5, r0, #0
-	movs r0, #0x9c
-	lsls r0, r0, #1
-	adds r4, r5, r0
-	adds r0, r4, #0
-	bl sub_0814F274
-	cmp r0, #0
-	bne _0814A2FE
-	ldr r1, _0814A304 @ =gUnk_08D626F0
-	ldr r0, _0814A308 @ =gUnk_08D60A80
-	ldrh r0, [r0]
-	lsls r0, r0, #3
-	adds r0, r0, r1
-	ldr r0, [r0]
-	ldr r1, [r0]
-	adds r0, r4, #0
-	bl sub_0814F3C4
-	movs r0, #0xa2
-	lsls r0, r0, #1
-	adds r1, r5, r0
-	ldr r0, _0814A30C @ =sub_0814A310
-	str r0, [r1]
-_0814A2FE:
-	pop {r4, r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0814A304: .4byte gUnk_08D626F0
-_0814A308: .4byte gUnk_08D60A80
-_0814A30C: .4byte sub_0814A310
-
-	thumb_func_start sub_0814A310
-sub_0814A310: @ 0x0814A310
-	push {r4, r5, lr}
-	adds r5, r0, #0
-	movs r0, #0x9c
-	lsls r0, r0, #1
-	adds r4, r5, r0
-	adds r0, r4, #0
-	bl sub_0814F274
-	cmp r0, #0
-	bne _0814A344
-	ldr r1, _0814A34C @ =gUnk_08D626F0
-	ldr r0, _0814A350 @ =gUnk_08D60A80
-	ldrh r0, [r0]
-	lsls r0, r0, #3
-	adds r1, #4
-	adds r0, r0, r1
-	ldr r0, [r0]
-	ldr r1, [r0]
-	adds r0, r4, #0
-	bl sub_0814F3C4
-	movs r0, #0xa2
-	lsls r0, r0, #1
-	adds r1, r5, r0
-	ldr r0, _0814A354 @ =sub_0814A358
-	str r0, [r1]
-_0814A344:
-	pop {r4, r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0814A34C: .4byte gUnk_08D626F0
-_0814A350: .4byte gUnk_08D60A80
-_0814A354: .4byte sub_0814A358
-
-	thumb_func_start sub_0814A358
-sub_0814A358: @ 0x0814A358
-	push {r4, r5, lr}
-	adds r5, r0, #0
-	movs r0, #0x9c
-	lsls r0, r0, #1
-	adds r4, r5, r0
-	adds r0, r4, #0
-	bl sub_0814F274
-	cmp r0, #0
-	bne _0814A38A
-	ldr r1, _0814A390 @ =gUnk_08D626F0
-	ldr r0, _0814A394 @ =gUnk_08D60A80
-	ldrh r0, [r0]
-	lsls r0, r0, #3
-	adds r0, r0, r1
-	ldr r0, [r0]
-	ldr r1, [r0]
-	adds r0, r4, #0
-	bl sub_0814F3C4
-	movs r0, #0xa2
-	lsls r0, r0, #1
-	adds r1, r5, r0
-	ldr r0, _0814A398 @ =sub_0814A310
-	str r0, [r1]
-_0814A38A:
-	pop {r4, r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0814A390: .4byte gUnk_08D626F0
-_0814A394: .4byte gUnk_08D60A80
-_0814A398: .4byte sub_0814A310
-
-	thumb_func_start sub_0814A39C
-sub_0814A39C: @ 0x0814A39C
-	push {r4, r5, r6, r7, lr}
-	mov r7, r8
-	push {r7}
-	mov r8, r0
-	movs r0, #0x94
-	lsls r0, r0, #1
-	add r0, r8
-	ldrb r7, [r0]
-	movs r6, #0
-	cmp r6, r7
-	bhs _0814A3F4
-_0814A3B2:
-	ldr r0, _0814A400 @ =gUnk_08D6274A
-	adds r0, r6, r0
-	ldrb r0, [r0]
-	lsls r5, r0, #2
-	adds r5, r5, r0
-	lsls r5, r5, #3
-	adds r5, #0x10
-	add r5, r8
-	lsls r4, r6, #2
-	adds r4, r4, r6
-	lsls r4, r4, #2
-	adds r0, r6, #0
-	movs r1, #5
-	bl __udivsi3
-	lsls r0, r0, #0x18
-	lsrs r0, r0, #0x18
-	lsls r1, r0, #1
-	adds r1, r1, r0
-	lsls r1, r1, #2
-	adds r1, #0x18
-	adds r4, r4, r1
-	strh r4, [r5, #0x10]
-	movs r0, #0x7f
-	strh r0, [r5, #0x12]
-	adds r0, r5, #0
-	bl sub_0815604C
-	adds r0, r6, #1
-	lsls r0, r0, #0x18
-	lsrs r6, r0, #0x18
-	cmp r6, r7
-	blo _0814A3B2
-_0814A3F4:
-	pop {r3}
-	mov r8, r3
-	pop {r4, r5, r6, r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0814A400: .4byte gUnk_08D6274A
-
 	thumb_func_start sub_0814A404
 sub_0814A404: @ 0x0814A404
 	push {lr}

include/functions.h

@@ -20,8 +20,10 @@ void sub_08032E98(void);
 
 void sub_08145B64(u16);
 void sub_08149CE4(void);
+u32 sub_0814F274(u16*);
+void sub_0814F3C4(u16*, u32);
 
-extern u32 sub_081570B0(u16);
+u32 sub_081570B0(u16);
 
 u32 sub_08153184(void);
 u32 sub_0815436C(void);
@@ -33,5 +35,6 @@ void Timer3Intr(void);
 void nullsub_2(void);
 void sub_08159074(void);
 u32 sub_08159088(u16);
+void sub_08157190(u32);
 
 #endif

include/title_screen.h

@@ -36,8 +36,10 @@ struct TitleStruct {
     u8 filler129[3];
     TitleFunc unk12C;
     TitleFunc unk130;
-    u16 unk134;
+    s16 unk134;
-    u8 filler136[0xe];
+    u8 filler136[2];
+    u16 unk138;
+    u8 filler13A[0xa];
     TitleFunc unk144;
 };
 
@@ -55,8 +57,10 @@ struct Unk_082D7850 {
 extern const struct Unk_082D7850* const gUnk_082D7850[];
 extern const u16 gUnk_08387D58[][4];
 extern const u16 gUnk_08D60A80;
+extern const u32* gUnk_08D626F0[][2];
 extern const u16 gUnk_08D62720[7][3];
 extern const u16* gUnk_08D62722;
+extern const u8 gUnk_08D6274A[];
 
 extern void sub_08149DC0(void);
 extern void sub_08149F08(struct TitleStruct*);
@@ -64,9 +68,14 @@ extern void sub_0814A178(struct TitleStruct*);
 extern void sub_0814A1C8(struct GameState*);
 extern void sub_0814A218(u8);
 extern void sub_0814A240(u8);
+extern void sub_0814A2B0(struct TitleStruct*);
+extern void sub_0814A2CC(struct TitleStruct*);
+extern void sub_0814A310(struct TitleStruct*);
+extern void sub_0814A358(struct TitleStruct*);
 extern void sub_0814A39C(struct TitleStruct*);
 extern void sub_0814A404(struct TitleStruct*);
 extern void sub_0814A410(struct TitleStruct*);
+extern void sub_0814A420(struct TitleStruct*);
 extern void sub_0814A518(struct TitleStruct*);
 extern void sub_0814A6BC(struct TitleStruct*);
 extern u32 sub_08155128(struct Unk10*);

src/title_screen.c

@@ -128,6 +128,7 @@ static inline void LoadBg(u8 bg, u16 r0, void* dest) {
     r1 = (gBgCntRegs[bg] >> 2) & 3;
     r6 = (((gBgCntRegs[bg] >> 8) & 0x1f) << 0xb) + dest;
     LZ77UnCompVram(r0_2, (r1 << 0xe) + (void*)VRAM);
+    
     for (j = 0; j < r5; j++) {
         CpuCopy16(r7 + j * 60, r6 + j * 64, 0x3c);
     }
@@ -140,6 +141,7 @@ static inline void sub_08158334_wrapper(u16* a1, u8 a2, u16 a3) {
 void sub_08149F8C(struct TitleStruct* arg0) {
     u8 i;
     u16 r0;
+
     for (i = 0; i < 3; i++) {
         sub_0814A218(i);
     }
@@ -152,6 +154,7 @@ void sub_08149F8C(struct TitleStruct* arg0) {
     LoadBg(1, gUnk_08387D58[gUnk_08D60A80][0], (void*)VRAM);
     LoadBg(2, gUnk_08387D58[gUnk_08D60A80][2], (void*)VRAM);
     r0 = gUnk_08387D58[gUnk_08D60A80][0];
+
     if (gUnk_03002440 & 0x10000) {
         sub_08158334_wrapper(gUnk_082D7850[r0]->unk10, 0, 0x100);
     }
@@ -164,3 +167,87 @@ void sub_08149F8C(struct TitleStruct* arg0) {
     arg0->unk134 = 0;
     arg0->unk130 = sub_0814A178;
 }
+
+void sub_0814A178(struct TitleStruct* arg0) {
+    arg0->unk134++;
+    gBldRegs.bldY = 0x10 - ((arg0->unk134 << 4) / 0xf);
+
+    if (arg0->unk134 > 0xe) {
+        gBldRegs.bldY = 0;
+        gBldRegs.bldAlpha = 0;
+        gBldRegs.bldCnt = 0;
+        arg0->unk4 = 1;
+        arg0->unk130 = sub_0814A420;
+    }
+}
+
+void sub_0814A1C8(struct GameState* arg0) {
+    struct TitleStruct* r0, *r6;
+    u8 i;
+
+    if (arg0->unk12 & 0x10) {
+        r0 = (struct TitleStruct*)(EWRAM_START + (arg0->unk6 << 2));
+    }
+    else {
+        r0 = (struct TitleStruct*)(IWRAM_START + arg0->unk6);
+    }
+
+    r6 = r0;
+    for (i = 0; i <= 6; i++) {
+        struct Unk10* cur = &r6->unk10[i];
+        if (cur->unk0 != 0) {
+            sub_08157190(cur->unk0);
+            cur->unk0 = 0;
+        }
+    }
+}
+
+void sub_0814A218(u8 arg0) {
+    CpuFill16(0, (void*)VRAM + (arg0 << 0xe), 0x4000);
+}
+
+void sub_0814A240(u8 arg0) {
+    CpuFill16(0x1ff, (void*)VRAM + ((0x1f - arg0) << 0xb), 0x800);
+}
+
+void sub_0814A274(struct TitleStruct* arg0) {
+    sub_0814F3C4(&arg0->unk138, *gUnk_08D626F0[gUnk_08D60A80][1]);
+    arg0->unk144 = sub_0814A2B0;
+}
+
+void sub_0814A2B0(struct TitleStruct* arg0) {
+    if (arg0->unk4 == 1) {
+        arg0->unk144 = sub_0814A2CC;
+    }
+}
+
+void sub_0814A2CC(struct TitleStruct* arg0) {
+    if (sub_0814F274(&arg0->unk138) == 0) {
+        sub_0814F3C4(&arg0->unk138, *gUnk_08D626F0[gUnk_08D60A80][0]);
+        arg0->unk144 = sub_0814A310;
+    }
+}
+
+void sub_0814A310(struct TitleStruct* arg0) {
+    if (sub_0814F274(&arg0->unk138) == 0) {
+        sub_0814F3C4(&arg0->unk138, *gUnk_08D626F0[gUnk_08D60A80][1]);
+        arg0->unk144 = sub_0814A358;
+    }
+}
+
+void sub_0814A358(struct TitleStruct* arg0) {
+    if (sub_0814F274(&arg0->unk138) == 0) {
+        sub_0814F3C4(&arg0->unk138, *gUnk_08D626F0[gUnk_08D60A80][0]);
+        arg0->unk144 = sub_0814A310;
+    }
+}
+
+void sub_0814A39C(struct TitleStruct* arg0) {
+    u8 i, r7 = arg0->unk128;
+    for (i = 0; i < r7; i++) {
+        struct Unk10* cur = &arg0->unk10[gUnk_08D6274A[i]];
+        cur->unk10 = (i * 20) + (i / 5 * 12 + 24);
+        cur->unk12 = 0x7f;
+        sub_0815604C(cur);
+    }
+}