From 4223bb65f05704ade92ed99d9d5ea58becf1c8ec Mon Sep 17 00:00:00 2001
From: Marcus Huderle <huderlem@gmail.com>
Date: Tue, 19 Feb 2019 16:30:15 -0600
Subject: [PATCH] Decompile several contest_link_80F57C4.c functions

---
 asm/contest_link_80F57C4.s | 393 -------------------------------------
 src/contest_link_80F57C4.c | 136 ++++++++++++-
 2 files changed, 132 insertions(+), 397 deletions(-)

diff --git a/asm/contest_link_80F57C4.s b/asm/contest_link_80F57C4.s
index d73293648..44f92caca 100644
--- a/asm/contest_link_80F57C4.s
+++ b/asm/contest_link_80F57C4.s
@@ -5,399 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_80F7364
-sub_80F7364: @ 80F7364
-	push {r4-r7,lr}
-	lsls r0, 24
-	lsrs r5, r0, 24
-	lsls r1, 24
-	lsrs r6, r1, 24
-	ldr r1, =gUnknown_02039F18
-	lsls r0, r5, 1
-	adds r0, r1
-	movs r2, 0
-	ldrsh r0, [r0, r2]
-	adds r7, r1, 0
-	cmp r0, 0
-	bge _080F7380
-	negs r0, r0
-_080F7380:
-	lsls r4, r0, 16
-	adds r0, r4, 0
-	movs r1, 0x50
-	bl __udivsi3
-	adds r2, r0, 0
-	ldr r0, =0x0000ffff
-	ands r0, r2
-	cmp r0, 0
-	beq _080F739A
-	movs r0, 0x80
-	lsls r0, 9
-	adds r2, r0
-_080F739A:
-	lsrs r2, 16
-	cmp r2, 0
-	bne _080F73A6
-	cmp r4, 0
-	beq _080F73A6
-	movs r2, 0x1
-_080F73A6:
-	cmp r6, 0
-	beq _080F73B0
-	cmp r2, 0xA
-	bls _080F73B0
-	movs r2, 0xA
-_080F73B0:
-	lsls r0, r5, 1
-	adds r0, r7
-	movs r1, 0
-	ldrsh r0, [r0, r1]
-	cmp r0, 0
-	bge _080F73CC
-	negs r0, r2
-	lsls r0, 24
-	b _080F73CE
-	.pool
-_080F73CC:
-	lsls r0, r2, 24
-_080F73CE:
-	lsrs r0, 24
-	lsls r0, 24
-	asrs r0, 24
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80F7364
-
-	thumb_func_start sub_80F73DC
-sub_80F73DC: @ 80F73DC
-	push {r4-r7,lr}
-	mov r7, r9
-	mov r6, r8
-	push {r6,r7}
-	sub sp, 0x10
-	lsls r0, 24
-	lsrs r0, 24
-	mov r8, r0
-	ldr r1, =gTasks
-	lsls r0, 2
-	add r0, r8
-	lsls r0, 3
-	adds r7, r0, r1
-	ldrh r2, [r7, 0x1C]
-	movs r0, 0x1C
-	ldrsh r6, [r7, r0]
-	cmp r6, 0
-	bne _080F741C
-	movs r1, 0x8
-	ldrsh r0, [r7, r1]
-	movs r1, 0x3
-	subs r1, r0
-	lsls r0, r1, 2
-	adds r0, r1
-	lsls r0, 3
-	strh r0, [r7, 0x1E]
-	adds r0, r2, 0x1
-	strh r0, [r7, 0x1C]
-	b _080F74A4
-	.pool
-_080F741C:
-	cmp r6, 0x1
-	bne _080F74A4
-	ldrh r0, [r7, 0x1E]
-	subs r0, 0x1
-	strh r0, [r7, 0x1E]
-	lsls r0, 16
-	asrs r0, 16
-	movs r1, 0x1
-	negs r1, r1
-	cmp r0, r1
-	bne _080F74A4
-	movs r2, 0x8
-	ldrsh r4, [r7, r2]
-	lsls r4, 17
-	ldr r0, =0x50430000
-	adds r4, r0
-	lsrs r4, 16
-	movs r1, 0xA
-	ldrsh r0, [r7, r1]
-	lsls r3, r0, 1
-	adds r3, r0
-	adds r3, 0x5
-	lsls r3, 24
-	lsrs r3, 24
-	movs r2, 0x2
-	mov r9, r2
-	str r2, [sp]
-	str r6, [sp, 0x4]
-	movs r5, 0x11
-	str r5, [sp, 0x8]
-	str r6, [sp, 0xC]
-	movs r0, 0x2
-	adds r1, r4, 0
-	movs r2, 0x1
-	bl WriteSequenceToBgTilemapBuffer
-	adds r4, 0x10
-	lsls r4, 16
-	lsrs r4, 16
-	movs r1, 0xA
-	ldrsh r0, [r7, r1]
-	lsls r3, r0, 1
-	adds r3, r0
-	adds r3, 0x6
-	lsls r3, 24
-	lsrs r3, 24
-	mov r2, r9
-	str r2, [sp]
-	str r6, [sp, 0x4]
-	str r5, [sp, 0x8]
-	str r6, [sp, 0xC]
-	movs r0, 0x2
-	adds r1, r4, 0
-	movs r2, 0x1
-	bl WriteSequenceToBgTilemapBuffer
-	ldr r0, =gUnknown_0203A034
-	ldr r0, [r0]
-	ldr r1, [r0]
-	ldrb r0, [r1, 0x5]
-	adds r0, 0x1
-	strb r0, [r1, 0x5]
-	mov r0, r8
-	bl DestroyTask
-	movs r0, 0x18
-	bl PlaySE
-_080F74A4:
-	add sp, 0x10
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80F73DC
-
-	thumb_func_start sub_80F74BC
-sub_80F74BC: @ 80F74BC
-	push {r4-r6,lr}
-	sub sp, 0xC
-	lsls r0, 24
-	lsrs r5, r0, 24
-	movs r4, 0
-	ldr r1, =gContestFinalStandings
-	ldrb r0, [r1]
-	ldr r6, =gUnknown_0203A034
-	cmp r0, 0
-	beq _080F74DE
-_080F74D0:
-	adds r4, 0x1
-	cmp r4, 0x3
-	bgt _080F74DE
-	adds r0, r4, r1
-	ldrb r0, [r0]
-	cmp r0, 0
-	bne _080F74D0
-_080F74DE:
-	ldr r1, [r6]
-	lsls r3, r4, 1
-	adds r3, r4
-	lsls r0, r3, 6
-	movs r2, 0x80
-	lsls r2, 1
-	adds r0, r2
-	ldr r1, [r1, 0x14]
-	adds r1, r0
-	adds r3, 0x4
-	lsls r3, 24
-	lsrs r3, 24
-	movs r0, 0x20
-	str r0, [sp]
-	movs r0, 0x3
-	str r0, [sp, 0x4]
-	movs r0, 0x9
-	str r0, [sp, 0x8]
-	movs r0, 0x2
-	movs r2, 0
-	bl CopyToBgTilemapBufferRect_ChangePalette
-	ldr r1, =gTasks
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 3
-	adds r0, r1
-	strh r4, [r0, 0x1C]
-	movs r1, 0x1
-	strh r1, [r0, 0x20]
-	ldr r1, =sub_80F753C
-	str r1, [r0]
-	ldr r0, [r6]
-	ldr r0, [r0]
-	strb r5, [r0, 0x3]
-	add sp, 0xC
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80F74BC
-
-	thumb_func_start sub_80F753C
-sub_80F753C: @ 80F753C
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r2, =gTasks
-	lsls r1, r0, 2
-	adds r1, r0
-	lsls r1, 3
-	adds r4, r1, r2
-	ldrh r0, [r4, 0x1E]
-	adds r0, 0x1
-	strh r0, [r4, 0x1E]
-	lsls r0, 16
-	asrs r5, r0, 16
-	cmp r5, 0x1
-	bne _080F75A0
-	movs r0, 0
-	strh r0, [r4, 0x1E]
-	ldrh r2, [r4, 0x20]
-	lsls r2, 24
-	lsrs r2, 24
-	ldr r3, =0x00006f8d
-	movs r0, 0x91
-	movs r1, 0x1
-	bl BlendPalette
-	movs r1, 0x22
-	ldrsh r0, [r4, r1]
-	cmp r0, 0
-	bne _080F7590
-	ldrh r0, [r4, 0x20]
-	adds r0, 0x1
-	strh r0, [r4, 0x20]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x10
-	bne _080F75A0
-	strh r5, [r4, 0x22]
-	b _080F75A0
-	.pool
-_080F7590:
-	ldrh r0, [r4, 0x20]
-	subs r0, 0x1
-	strh r0, [r4, 0x20]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0
-	bne _080F75A0
-	strh r0, [r4, 0x22]
-_080F75A0:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80F753C
-
-	thumb_func_start sub_80F75A8
-sub_80F75A8: @ 80F75A8
-	push {r4,lr}
-	adds r4, r0, 0
-	ldrh r1, [r4, 0x2E]
-	movs r2, 0x2E
-	ldrsh r0, [r4, r2]
-	cmp r0, 0x9
-	bgt _080F75D0
-	adds r0, r1, 0x1
-	strh r0, [r4, 0x2E]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0xA
-	bne _080F7610
-	ldrh r0, [r4, 0x30]
-	movs r1, 0
-	bl PlayCry1
-	movs r0, 0
-	strh r0, [r4, 0x30]
-	b _080F7610
-_080F75D0:
-	movs r0, 0xC0
-	lsls r0, 3
-	adds r2, r0, 0
-	ldrh r1, [r4, 0x30]
-	adds r2, r1
-	lsls r1, r2, 16
-	asrs r1, 24
-	ldrh r0, [r4, 0x20]
-	subs r0, r1
-	strh r0, [r4, 0x20]
-	movs r1, 0xFF
-	ands r2, r1
-	strh r2, [r4, 0x30]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x77
-	bgt _080F75F6
-	movs r0, 0x78
-	strh r0, [r4, 0x20]
-_080F75F6:
-	movs r2, 0x20
-	ldrsh r0, [r4, r2]
-	cmp r0, 0x78
-	bne _080F7610
-	ldr r0, =SpriteCallbackDummy
-	str r0, [r4, 0x1C]
-	movs r0, 0
-	strh r0, [r4, 0x30]
-	ldr r0, =gUnknown_0203A034
-	ldr r0, [r0]
-	ldr r1, [r0]
-	movs r0, 0x1
-	strb r0, [r1, 0x6]
-_080F7610:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80F75A8
-
-	thumb_func_start sub_80F7620
-sub_80F7620: @ 80F7620
-	push {lr}
-	adds r3, r0, 0
-	movs r0, 0xC0
-	lsls r0, 3
-	adds r2, r0, 0
-	ldrh r0, [r3, 0x30]
-	adds r2, r0
-	lsls r1, r2, 16
-	asrs r1, 24
-	ldrh r0, [r3, 0x20]
-	subs r0, r1
-	strh r0, [r3, 0x20]
-	movs r1, 0xFF
-	ands r2, r1
-	strh r2, [r3, 0x30]
-	lsls r0, 16
-	asrs r0, 16
-	movs r1, 0x20
-	negs r1, r1
-	cmp r0, r1
-	bge _080F7664
-	ldr r0, =SpriteCallbackDummy
-	str r0, [r3, 0x1C]
-	adds r2, r3, 0
-	adds r2, 0x3E
-	ldrb r0, [r2]
-	movs r1, 0x4
-	orrs r0, r1
-	strb r0, [r2]
-	ldr r0, =gUnknown_0203A034
-	ldr r0, [r0]
-	ldr r1, [r0]
-	movs r0, 0x2
-	strb r0, [r1, 0x6]
-_080F7664:
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80F7620
-
 	thumb_func_start sub_80F7670
 sub_80F7670: @ 80F7670
 	push {r4-r7,lr}
diff --git a/src/contest_link_80F57C4.c b/src/contest_link_80F57C4.c
index 381fb34fa..c72fc9ba3 100644
--- a/src/contest_link_80F57C4.c
+++ b/src/contest_link_80F57C4.c
@@ -110,13 +110,14 @@ static void sub_80F6EF4(u16);
 static void sub_80F60F0(u8);
 static void sub_80F616C(u8);
 static void sub_80F6204(u8);
-void sub_80F73DC(u8);
-void sub_80F74BC(u8);
+static void sub_80F73DC(u8);
+static void sub_80F74BC(u8);
+static void sub_80F753C(u8);
 void sub_80F77E0(u8, u8);
 static void sub_80F6404(u8);
-void sub_80F75A8(struct Sprite *);
+static void sub_80F75A8(struct Sprite *);
 void sub_80F7670(u8);
-void sub_80F7620(struct Sprite *);
+static void sub_80F7620(struct Sprite *);
 static void sub_80F66B4(u8);
 static void sub_80F671C(u8);
 static void sub_80F677C(u8);
@@ -1439,3 +1440,130 @@ u8 sub_80F7310(u8 monIndex, u8 arg1)
 
     return var1;
 }
+
+s8 sub_80F7364(u8 arg0, u8 arg1)
+{
+    u32 r4;
+    u32 r2;
+    s16 val;
+    s8 ret;
+
+    val = gUnknown_02039F18[arg0];
+    if (val < 0)
+        r4 = -val << 16;
+    else
+        r4 = val << 16;
+
+    r2 = r4 / 80;
+    if (r2 & 0xFFFF)
+        r2 += 0x10000;
+
+    r2 >>= 16;
+    if (r2 == 0 && r4 != 0)
+        r2 = 1;
+
+    if (arg1 != 0 && r2 > 10)
+        r2 = 10;
+
+    if (gUnknown_02039F18[arg0] < 0)
+        ret = -r2;
+    else
+        ret = r2;
+
+    return ret;
+}
+
+static void sub_80F73DC(u8 taskId)
+{
+    u16 firstTileNum;
+
+    if (gTasks[taskId].data[10] == 0)
+    {
+        gTasks[taskId].data[11] = (3 - gTasks[taskId].data[0]) * 40;
+        gTasks[taskId].data[10]++;
+    }
+    else if (gTasks[taskId].data[10] == 1)
+    {
+        if (--gTasks[taskId].data[11] == -1)
+        {
+            firstTileNum = gTasks[taskId].data[0] * 2 + 0x5043;
+            WriteSequenceToBgTilemapBuffer(2, firstTileNum, 1, gTasks[taskId].data[1] * 3 + 5, 2, 1, 17, 1);
+            WriteSequenceToBgTilemapBuffer(2, firstTileNum + 0x10, 1, gTasks[taskId].data[1] * 3 + 6, 2, 1, 17, 1);
+            gUnknown_0203A034->unk0->unk5++;
+            DestroyTask(taskId);
+            PlaySE(SE_JYUNI);
+        }
+    }
+}
+
+static void sub_80F74BC(u8 taskId)
+{
+    int i;
+    for (i = 0; i < 4 && gContestFinalStandings[i] != 0; i++)
+        ;
+
+    CopyToBgTilemapBufferRect_ChangePalette(2, i * 0xC0 + 0x100 + gUnknown_0203A034->unkC[2], 0, i * 3 + 4, 32, 3, 9);
+    gTasks[taskId].data[10] = i;
+    gTasks[taskId].data[12] = 1;
+    gTasks[taskId].func = sub_80F753C;
+    gUnknown_0203A034->unk0->unk3 = taskId;
+}
+
+static void sub_80F753C(u8 taskId)
+{
+    if (++gTasks[taskId].data[11] == 1)
+    {
+        gTasks[taskId].data[11] = 0;
+        BlendPalette(0x91, 1, gTasks[taskId].data[12], RGB(13, 28, 27));
+        if (gTasks[taskId].data[13] == 0)
+        {
+            if (++gTasks[taskId].data[12] == 16)
+                gTasks[taskId].data[13] = 1;
+        }
+        else
+        {
+            if (--gTasks[taskId].data[12] == 0)
+                gTasks[taskId].data[13] = 0;
+        }
+    }
+}
+
+static void sub_80F75A8(struct Sprite *sprite)
+{
+    if (sprite->data[0] < 10)
+    {
+        if (++sprite->data[0] == 10)
+        {
+            PlayCry1(sprite->data[1], 0);
+            sprite->data[1] = 0;
+        }
+    }
+    else
+    {
+        s16 delta = (u16)sprite->data[1] + 0x600;
+        sprite->pos1.x -= delta >> 8;
+        sprite->data[1] = (sprite->data[1] + 0x600) & 0xFF;
+        if (sprite->pos1.x < 120)
+            sprite->pos1.x = 120;
+
+        if (sprite->pos1.x == 120)
+        {
+            sprite->callback = SpriteCallbackDummy;
+            sprite->data[1] = 0;
+            gUnknown_0203A034->unk0->unk6 = 1;
+        }
+    }
+}
+
+static void sub_80F7620(struct Sprite *sprite)
+{
+    s16 delta = (u16)sprite->data[1] + 0x600;
+    sprite->pos1.x -= delta >> 8;
+    sprite->data[1] = (sprite->data[1] + 0x600) & 0xFF;
+    if (sprite->pos1.x < -32)
+    {
+        sprite->callback = SpriteCallbackDummy;
+        sprite->invisible = 1;
+        gUnknown_0203A034->unk0->unk6 = 2;
+    }
+}