sub_0804E3C4 matching

This is the function to load the fight for Simon's simulation.

asm/non_matching/sub_0804E3C4.inc

@@ -1,68 +0,0 @@
-    .syntax unified
-	push {r4, r5, r6, lr}
-	movs r0, #5
-	bl CheckGlobalFlag
-	rsbs r1, r0, #0
-	orrs r1, r0
-	lsrs r6, r1, #0x1f
-	movs r0, #6
-	bl CheckGlobalFlag
-	cmp r0, #0
-	beq _0804E3DE
-	movs r6, #2
-_0804E3DE:
-	movs r0, #0x55
-	bl CheckGlobalFlag
-	cmp r0, #0
-	beq _0804E3EA
-	movs r6, #3
-_0804E3EA:
-	bl Random
-	adds r4, r0, #0
-	ldr r1, _0804E448 @ =gUnk_080F0D58
-	lsls r0, r6, #2
-	adds r0, r0, r1
-	movs r5, #0x1f
-	adds r1, r4, #0
-	ands r1, r5
-	ldr r0, [r0]
-	adds r0, r0, r1
-	ldrb r6, [r0]
-	ldr r1, _0804E44C @ =gUnk_080F0CB8
-	movs r0, #0xf
-	ands r0, r6
-	lsls r0, r0, #2
-	adds r0, r0, r1
-	ldr r0, [r0]
-	bl LoadRoomEntityList
-	lsrs r6, r6, #4
-	lsrs r4, r4, #8
-	ldr r1, _0804E450 @ =gUnk_080F0E08
-	lsls r0, r6, #2
-	adds r0, r0, r1
-	ands r4, r5
-	ldr r0, [r0]
-	adds r0, r0, r4
-	ldrb r6, [r0]
-	movs r0, #0xc6
-	bl CheckLocalFlag
-	cmp r0, #0
-	bne _0804E436
-	movs r0, #0xc6
-	bl SetLocalFlag
-	movs r6, #0xe
-_0804E436:
-	lsls r0, r6, #3
-	ldr r1, _0804E454 @ =gUnk_080F0E1C
-	adds r0, r0, r1
-	bl sub_0804B3C4
-	ldr r0, _0804E458 @ =0x80100000
-	bl PlaySFX
-	pop {r4, r5, r6, pc}
-	.align 2, 0
-_0804E448: .4byte gUnk_080F0D58
-_0804E44C: .4byte gUnk_080F0CB8
-_0804E450: .4byte gUnk_080F0E08
-_0804E454: .4byte gUnk_080F0E1C
-_0804E458: .4byte 0x80100000
-    .syntax divided

include/functions.h

@@ -118,7 +118,7 @@ extern void sub_080AD918(void);
 extern void sub_0801E104(void);
 extern void MenuFadeIn(u32, u32);
 extern void sub_080A57F4(void);
-extern void sub_0804B29C(u32);
+extern void sub_0804B29C(void*);
 extern void sub_08030118(u32);
 extern void sub_080575C8(u32);
 extern void sub_08057688(void);

src/room.c

@@ -10,7 +10,7 @@
 #include "main.h"
 #include "structures.h"
 
-void sub_0804B3C4(u32 arg0) {
+void sub_0804B3C4(void* arg0) {
     sub_0804B29C(arg0);
 }
 
@@ -4467,9 +4467,38 @@ u32 sub_0804E3B8() {
     return 1;
 }
 
-NAKED
+extern u8* gUnk_080F0D58[4];
+extern Entity* gUnk_080F0CB8[15];
+extern u8* gUnk_080F0E08[];
+extern struct {
+    u32 unk_00;
+    u32 unk_04;
+} gUnk_080F0E1C[];
+
 void sub_0804E3C4() {
-    asm(".include \"asm/non_matching/sub_0804E3C4.inc\"");
+    u32 r;
+    u32 index;
+    u32 tmp;
+    tmp = CheckGlobalFlag(LV4_CLEAR);
+    index = (-tmp | tmp) >> 0x1F;
+    if (CheckGlobalFlag(LV5_CLEAR)) {
+        index = 2;
+    }
+    if (CheckGlobalFlag(GAMECLEAR)) {
+        index = 3;
+    }
+    r = Random();
+    index = gUnk_080F0D58[index][r&0x1f];
+    LoadRoomEntityList(gUnk_080F0CB8[index & 0xF]);
+    index >>= 4;
+    r >>= 8;
+    index = gUnk_080F0E08[index][r&0x1F];
+    if (!CheckLocalFlag(0xC6)) {
+        SetLocalFlag(0xC6);
+        index = 0xE;
+    }
+    sub_0804B3C4(&gUnk_080F0E1C[index]);
+    PlaySFX(0x80100000);
 }
 
 u32 sub_0804E45C() {
@@ -6552,4 +6581,4 @@ void sub_0804FF84(u32 arg0)
 {
   ((struct_02000000 * )0x02000000)->brightnessPref = arg0;
   gUsedPalettes = (u32)-1;
-}
+}