help_system_812B1E0: through sub_812BDEC

4 files changed, 170 insertions, 383 deletions

diff --git a/asm/help_system_812B1E0.s b/asm/help_system_812B1E0.s
index b396180be..7f2459190 100644
--- a/asm/help_system_812B1E0.s
+++ b/asm/help_system_812B1E0.s
@@ -5,389 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_812BB10
-sub_812BB10: @ 812BB10
-	push {lr}
-	ldr r0, _0812BB7C @ =0x00000237
-	bl FlagGet
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _0812BB94
-	movs r0, 0x8E
-	lsls r0, 2
-	bl FlagGet
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _0812BB94
-	ldr r0, _0812BB80 @ =0x00000239
-	bl FlagGet
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _0812BB94
-	ldr r0, _0812BB84 @ =0x0000023a
-	bl FlagGet
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _0812BB94
-	ldr r0, _0812BB88 @ =0x0000023b
-	bl FlagGet
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _0812BB94
-	ldr r0, _0812BB8C @ =0x000002ef
-	bl FlagGet
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _0812BB94
-	ldr r0, _0812BB90 @ =0x000001f1
-	bl FlagGet
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _0812BB94
-	movs r0, 0
-	b _0812BB96
-	.align 2, 0
-_0812BB7C: .4byte 0x00000237
-_0812BB80: .4byte 0x00000239
-_0812BB84: .4byte 0x0000023a
-_0812BB88: .4byte 0x0000023b
-_0812BB8C: .4byte 0x000002ef
-_0812BB90: .4byte 0x000001f1
-_0812BB94:
-	movs r0, 0x1
-_0812BB96:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_812BB10
-
-	thumb_func_start sub_812BB9C
-sub_812BB9C: @ 812BB9C
-	push {lr}
-	adds r2, r0, 0
-	adds r3, r1, 0
-	ldrb r0, [r2, 0xE]
-	cmp r0, 0xA
-	bhi _0812BC4C
-	lsls r0, 2
-	ldr r1, _0812BBB4 @ =_0812BBB8
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_0812BBB4: .4byte _0812BBB8
-	.align 2, 0
-_0812BBB8:
-	.4byte _0812BC02
-	.4byte _0812BC0C
-	.4byte _0812BC16
-	.4byte _0812BC20
-	.4byte _0812BC2A
-	.4byte _0812BC34
-	.4byte _0812BC3E
-	.4byte _0812BC4C
-	.4byte _0812BBE4
-	.4byte _0812BBEE
-	.4byte _0812BBF8
-_0812BBE4:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BC54
-	b _0812BC46
-_0812BBEE:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BC80
-	b _0812BC46
-_0812BBF8:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BCA8
-	b _0812BC46
-_0812BC02:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BCD0
-	b _0812BC46
-_0812BC0C:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BD2C
-	b _0812BC46
-_0812BC16:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BD64
-	b _0812BC46
-_0812BC20:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BD98
-	b _0812BC46
-_0812BC2A:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BE10
-	b _0812BC46
-_0812BC34:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BEEC
-	b _0812BC46
-_0812BC3E:
-	adds r0, r2, 0
-	adds r1, r3, 0
-	bl sub_812BF18
-_0812BC46:
-	lsls r0, 24
-	lsrs r0, 24
-	b _0812BC4E
-_0812BC4C:
-	movs r0, 0
-_0812BC4E:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_812BB9C
-
-	thumb_func_start sub_812BC54
-sub_812BC54: @ 812BC54
-	push {r4,lr}
-	adds r4, r0, 0
-	ldr r0, _0812BC7C @ =gUnknown_841DFA5
-	bl sub_812BF74
-	bl sub_812BF5C
-	movs r0, 0x1
-	bl sub_813BDA4
-	movs r0, 0x1
-	bl sub_813BD5C
-	movs r0, 0x9
-	strb r0, [r4, 0xE]
-	movs r0, 0x1
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_0812BC7C: .4byte gUnknown_841DFA5
-	thumb_func_end sub_812BC54
-
-	thumb_func_start sub_812BC80
-sub_812BC80: @ 812BC80
-	push {r4,lr}
-	adds r4, r0, 0
-	ldr r0, _0812BCA4 @ =gMain
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0x1
-	ands r0, r1
-	cmp r0, 0
-	beq _0812BC9A
-	movs r0, 0x5
-	bl PlaySE
-	movs r0, 0xA
-	strb r0, [r4, 0xE]
-_0812BC9A:
-	movs r0, 0x1
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_0812BCA4: .4byte gMain
-	thumb_func_end sub_812BC80
-
-	thumb_func_start sub_812BCA8
-sub_812BCA8: @ 812BCA8
-	push {r4-r6,lr}
-	adds r4, r0, 0
-	adds r6, r1, 0
-	ldr r0, _0812BCCC @ =gUnknown_3005E9C
-	movs r5, 0
-	strb r5, [r0, 0x2]
-	adds r0, r4, 0
-	bl sub_812BF94
-	adds r0, r4, 0
-	adds r1, r6, 0
-	bl sub_812B4D8
-	strb r5, [r4, 0xE]
-	movs r0, 0x1
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_0812BCCC: .4byte gUnknown_3005E9C
-	thumb_func_end sub_812BCA8
-
-	thumb_func_start sub_812BCD0
-sub_812BCD0: @ 812BCD0
-	push {r4,r5,lr}
-	adds r4, r0, 0
-	adds r5, r1, 0
-	bl sub_813C690
-	adds r1, r0, 0
-	adds r0, r1, 0x6
-	cmp r0, 0x5
-	bhi _0812BD16
-	lsls r0, 2
-	ldr r1, _0812BCEC @ =_0812BCF0
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_0812BCEC: .4byte _0812BCF0
-	.align 2, 0
-_0812BCF0:
-	.4byte _0812BD08
-	.4byte _0812BD0C
-	.4byte _0812BD0C
-	.4byte _0812BD1E
-	.4byte _0812BD08
-	.4byte _0812BD1E
-_0812BD08:
-	movs r0, 0
-	b _0812BD20
-_0812BD0C:
-	adds r0, r4, 0
-	adds r1, r5, 0
-	bl sub_812BF9C
-	b _0812BD1E
-_0812BD16:
-	ldr r0, _0812BD28 @ =gUnknown_3005E9C
-	strb r1, [r0, 0x1]
-	movs r0, 0x1
-	strb r0, [r4, 0xE]
-_0812BD1E:
-	movs r0, 0x1
-_0812BD20:
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_0812BD28: .4byte gUnknown_3005E9C
-	thumb_func_end sub_812BCD0
-
-	thumb_func_start sub_812BD2C
-sub_812BD2C: @ 812BD2C
-	push {r4,r5,lr}
-	adds r4, r0, 0
-	adds r5, r1, 0
-	ldr r1, _0812BD60 @ =gUnknown_3005E9C
-	movs r0, 0x1
-	strb r0, [r1]
-	ldrb r0, [r4, 0xD]
-	strb r0, [r1, 0x2]
-	adds r0, r4, 0
-	bl sub_812BF94
-	adds r0, r4, 0
-	adds r1, r5, 0
-	bl sub_812B5A8
-	bl sub_813C75C
-	movs r0, 0x2
-	bl sub_813C684
-	movs r0, 0x3
-	strb r0, [r4, 0xE]
-	movs r0, 0x1
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_0812BD60: .4byte gUnknown_3005E9C
-	thumb_func_end sub_812BD2C
-
-	thumb_func_start sub_812BD64
-sub_812BD64: @ 812BD64
-	push {r4-r6,lr}
-	adds r5, r0, 0
-	adds r6, r1, 0
-	movs r0, 0
-	movs r1, 0
-	bl sub_813C004
-	movs r0, 0x1
-	movs r1, 0
-	bl sub_813C004
-	ldr r0, _0812BD94 @ =gUnknown_3005E9C
-	movs r4, 0
-	strb r4, [r0]
-	adds r0, r5, 0
-	adds r1, r6, 0
-	bl sub_812B4D8
-	strb r4, [r5, 0xE]
-	movs r0, 0x1
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_0812BD94: .4byte gUnknown_3005E9C
-	thumb_func_end sub_812BD64
-
-	thumb_func_start sub_812BD98
-sub_812BD98: @ 812BD98
-	push {r4,lr}
-	adds r4, r0, 0
-	bl sub_813C690
-	adds r1, r0, 0
-	adds r0, r1, 0x6
-	cmp r0, 0x5
-	bhi _0812BDD8
-	lsls r0, 2
-	ldr r1, _0812BDB4 @ =_0812BDB8
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_0812BDB4: .4byte _0812BDB8
-	.align 2, 0
-_0812BDB8:
-	.4byte _0812BDD0
-	.4byte _0812BDE0
-	.4byte _0812BDE0
-	.4byte _0812BDE0
-	.4byte _0812BDD4
-	.4byte _0812BDE0
-_0812BDD0:
-	movs r0, 0
-	b _0812BDE2
-_0812BDD4:
-	movs r0, 0x2
-	b _0812BDDE
-_0812BDD8:
-	ldr r0, _0812BDE8 @ =gUnknown_3005E9C
-	strb r1, [r0, 0x3]
-	movs r0, 0x4
-_0812BDDE:
-	strb r0, [r4, 0xE]
-_0812BDE0:
-	movs r0, 0x1
-_0812BDE2:
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_0812BDE8: .4byte gUnknown_3005E9C
-	thumb_func_end sub_812BD98
-
-	thumb_func_start sub_812BDEC
-sub_812BDEC: @ 812BDEC
-	push {lr}
-	ldr r1, _0812BE08 @ =gUnknown_845B080
-	ldr r0, _0812BE0C @ =gUnknown_3005E9C
-	ldrb r0, [r0, 0x1]
-	lsls r0, 2
-	adds r0, r1
-	ldr r0, [r0]
-	movs r1, 0
-	movs r2, 0
-	bl sub_813C4CC
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812BE08: .4byte gUnknown_845B080
-_0812BE0C: .4byte gUnknown_3005E9C
-	thumb_func_end sub_812BDEC
-
 	thumb_func_start sub_812BE10
 sub_812BE10: @ 812BE10
 	push {r4,r5,lr}
diff --git a/include/help_system.h b/include/help_system.h
index f9aaba907..2f82c4cf0 100644
--- a/include/help_system.h
+++ b/include/help_system.h
@@ -18,6 +18,7 @@ struct HelpSystemStruct_203F190
     struct HelpSystemStruct_203F190_sub sub;
     u8 field_0C;
     u8 field_0D;
+    u8 field_0E;
     u8 filler_10[0xC];
 };
 
@@ -37,5 +38,9 @@ void sub_813BD5C(u8);
 void sub_813BDE8(u8);
 void sub_813BFC0(u8);
 void sub_813BE78(u8);
+s32 sub_813C690(void);
+void sub_813C75C(void);
+void sub_813C684(u8);
+void sub_813C004(u8, u8);
 
 #endif //GUARD_HELP_SYSTEM_H
diff --git a/include/strings.h b/include/strings.h
index 1e3d4c39b..6cc6b93c1 100644
--- a/include/strings.h
+++ b/include/strings.h
@@ -137,7 +137,9 @@ extern const u8 gTeachyTvText_TMsScript2[];
 extern const u8 gTeachyTvText_RegisterScript2[];
 
 // help_system_812B1E0
+extern const u8 gUnknown_841DFA5[];
 extern const u8 gUnknown_841DFAC[];
+extern const u8 gUnknown_841DFBE[];
 extern const u8 gUnknown_841DFC9[];
 
 #endif //GUARD_STRINGS_H
diff --git a/src/help_system_812B1E0.c b/src/help_system_812B1E0.c
index b04876c2a..5ac571e26 100644
--- a/src/help_system_812B1E0.c
+++ b/src/help_system_812B1E0.c
@@ -10,9 +10,11 @@
 #include "quest_log.h"
 #include "save.h"
 #include "save_location.h"
+#include "sound.h"
 #include "strings.h"
 #include "constants/items.h"
 #include "constants/maps.h"
+#include "constants/songs.h"
 
 EWRAM_DATA u16 gUnknown_203B0EC = 0;
 EWRAM_DATA u8 gUnknown_203B0EE = 0;
@@ -27,8 +29,20 @@ void sub_812B614(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1)
 bool8 sub_812B754(void);
 bool8 sub_812B780(u8);
 bool8 sub_812BB10(void);
+bool8 sub_812BC54(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+bool8 sub_812BC80(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+bool8 sub_812BCA8(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+bool8 sub_812BCD0(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+bool8 sub_812BD2C(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+bool8 sub_812BD64(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+bool8 sub_812BD98(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+bool8 sub_812BE10(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+bool8 sub_812BEEC(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+bool8 sub_812BF18(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
 void sub_812BF9C(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1);
+void sub_812BF5C(void);
 void sub_812BF74(const u8 *);
+void sub_812BF94(struct HelpSystemStruct_203F190 * a0);
 
 const u8 *const gUnknown_845B080[] = {
     gUnknown_81B2DF8,
@@ -1334,3 +1348,152 @@ bool8 sub_812B780(u8 id)
 
     return FALSE;
 }
+
+bool8 sub_812BB10(void)
+{
+    if (FlagGet(FLAG_0x237) == TRUE)
+        return TRUE;
+    if (FlagGet(FLAG_0x238) == TRUE)
+        return TRUE;
+    if (FlagGet(FLAG_0x239) == TRUE)
+        return TRUE;
+    if (FlagGet(FLAG_0x23A) == TRUE)
+        return TRUE;
+    if (FlagGet(FLAG_0x23B) == TRUE)
+        return TRUE;
+    if (FlagGet(FLAG_0x2EF) == TRUE)
+        return TRUE;
+    if (FlagGet(FLAG_0x1F1) == TRUE)
+        return TRUE;
+    return FALSE;
+}
+
+bool8 sub_812BB9C(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1)
+{
+    switch (a0->field_0E)
+    {
+    case  8:
+        return sub_812BC54(a0, a1);
+    case  9:
+        return sub_812BC80(a0, a1);
+    case 10:
+        return sub_812BCA8(a0, a1);
+    case  0:
+        return sub_812BCD0(a0, a1);
+    case  1:
+        return sub_812BD2C(a0, a1);
+    case  2:
+        return sub_812BD64(a0, a1);
+    case  3:
+        return sub_812BD98(a0, a1);
+    case  4:
+        return sub_812BE10(a0, a1);
+    case  5:
+        return sub_812BEEC(a0, a1);
+    case  6:
+        return sub_812BF18(a0, a1);
+    }
+    return FALSE;
+}
+
+bool8 sub_812BC54(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1)
+{
+    sub_812BF74(gUnknown_841DFA5);
+    sub_812BF5C();
+    sub_813BDA4(1);
+    sub_813BD5C(1);
+    a0->field_0E = 9;
+    return TRUE;
+}
+
+bool8 sub_812BC80(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1)
+{
+    if (JOY_NEW(A_BUTTON))
+    {
+        PlaySE(SE_SELECT);
+        a0->field_0E = 10;
+    }
+    return TRUE;
+}
+
+bool8 sub_812BCA8(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1)
+{
+    gUnknown_3005E9C[2] = 0;
+    sub_812BF94(a0);
+    sub_812B4D8(a0, a1);
+    a0->field_0E = 0;
+    return TRUE;
+}
+
+bool8 sub_812BCD0(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1)
+{
+    s32 v0 = sub_813C690();
+    switch (v0)
+    {
+    case -6:
+    case -2:
+        return FALSE;
+    case -5:
+    case -4:
+        sub_812BF9C(a0, a1);
+        break;
+    case -3:
+    case -1:
+        break;
+    default:
+        gUnknown_3005E9C[1] = v0;
+        a0->field_0E = 1;
+        break;
+    }
+    return TRUE;
+}
+
+bool8 sub_812BD2C(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1)
+{
+    gUnknown_3005E9C[0] = 1;
+    gUnknown_3005E9C[2] = a0->field_0D;
+    sub_812BF94(a0);
+    sub_812B5A8(a0, a1);
+    sub_813C75C();
+    sub_813C684(2);
+    a0->field_0E = 3;
+    return TRUE;
+}
+
+bool8 sub_812BD64(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1)
+{
+    sub_813C004(0, 0);
+    sub_813C004(1, 0);
+    gUnknown_3005E9C[0] = 0;
+    sub_812B4D8(a0, a1);
+    a0->field_0E = 0;
+    return TRUE;
+}
+
+bool8 sub_812BD98(struct HelpSystemStruct_203F190 * a0, struct ListMenuItem * a1)
+{
+    s32 v0 = sub_813C690();
+    switch (v0)
+    {
+    case -6:
+        return FALSE;
+    case -2:
+        a0->field_0E = 2;
+        break;
+    case -5:
+    case -4:
+    case -3:
+    case -1:
+        break;
+    default:
+        gUnknown_3005E9C[3] = v0;
+        a0->field_0E = 4;
+        break;
+    }
+    return TRUE;
+}
+
+void sub_812BDEC(void)
+{
+    sub_813C4CC(gUnknown_845B080[gUnknown_3005E9C[1]], 0, 0);
+}
\ No newline at end of file