through sub_81436EC

asm/mevent.s

@@ -5,193 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_81435DC
-sub_81435DC: @ 81435DC
-	push {r4-r6,lr}
-	mov r6, r8
-	push {r6}
-	sub sp, 0x4
-	adds r5, r0, 0
-	adds r6, r1, 0
-	mov r8, r2
-	mov r1, sp
-	ldr r4, _08143630 @ =0x04000208
-	ldrh r0, [r4]
-	strh r0, [r1]
-	movs r0, 0
-	strh r0, [r4]
-	ldr r1, _08143634 @ =gIntrTable
-	ldr r0, _08143638 @ =sub_815C6D4
-	str r0, [r1, 0x4]
-	ldr r0, _0814363C @ =sub_815C6C4
-	str r0, [r1, 0x8]
-	bl sub_815C8C8
-	bl sub_815C960
-	ldr r2, _08143640 @ =0x04000200
-	ldrh r0, [r2]
-	movs r1, 0x4
-	orrs r0, r1
-	strh r0, [r2]
-	mov r0, sp
-	ldrh r0, [r0]
-	strh r0, [r4]
-	movs r0, 0
-	strh r0, [r5]
-	str r6, [r5, 0x4]
-	mov r0, r8
-	str r0, [r5, 0x8]
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08143630: .4byte 0x04000208
-_08143634: .4byte gIntrTable
-_08143638: .4byte sub_815C6D4
-_0814363C: .4byte sub_815C6C4
-_08143640: .4byte 0x04000200
-	thumb_func_end sub_81435DC
-
-	thumb_func_start sub_8143644
-sub_8143644: @ 8143644
-	push {r4,lr}
-	sub sp, 0x4
-	mov r1, sp
-	ldr r4, _08143670 @ =0x04000208
-	ldrh r0, [r4]
-	strh r0, [r1]
-	movs r0, 0
-	strh r0, [r4]
-	bl sub_815C960
-	bl sub_815C91C
-	bl RestoreSerialTimer3IntrHandlers
-	mov r0, sp
-	ldrh r0, [r0]
-	strh r0, [r4]
-	add sp, 0x4
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08143670: .4byte 0x04000208
-	thumb_func_end sub_8143644
-
-	thumb_func_start sub_8143674
-sub_8143674: @ 8143674
-	push {r4,r5,lr}
-	adds r4, r0, 0
-	movs r5, 0
-	ldr r1, [r4, 0x4]
-	ldr r2, [r4, 0x8]
-	movs r0, 0x1
-	movs r3, 0
-	bl sub_815C498
-	adds r1, r0, 0
-	strh r1, [r4]
-	movs r0, 0x13
-	ands r0, r1
-	cmp r0, 0x10
-	bne _08143694
-	movs r5, 0x1
-_08143694:
-	movs r0, 0x8
-	ands r0, r1
-	cmp r0, 0
-	beq _0814369E
-	movs r5, 0x2
-_0814369E:
-	movs r0, 0x4
-	ands r0, r1
-	cmp r0, 0
-	beq _081436A8
-	movs r5, 0x3
-_081436A8:
-	ldr r1, _081436B8 @ =gUnknown_3003F84
-	movs r0, 0
-	strb r0, [r1]
-	adds r0, r5, 0
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_081436B8: .4byte gUnknown_3003F84
-	thumb_func_end sub_8143674
-
-	thumb_func_start sub_81436BC
-sub_81436BC: @ 81436BC
-	push {lr}
-	ldr r0, _081436E0 @ =gDecompressionBuffer
-	movs r2, 0x80
-	lsls r2, 6
-	movs r1, 0
-	bl memset
-	ldr r1, _081436E4 @ =gUnknown_202271A
-	ldr r2, _081436E8 @ =0x00005502
-	adds r0, r2, 0
-	strh r0, [r1]
-	bl sub_8009804
-	movs r0, 0x1
-	bl SetSuppressLinkErrorMessage
-	pop {r0}
-	bx r0
-	.align 2, 0
-_081436E0: .4byte gDecompressionBuffer
-_081436E4: .4byte gUnknown_202271A
-_081436E8: .4byte 0x00005502
-	thumb_func_end sub_81436BC
-
-	thumb_func_start sub_81436EC
-sub_81436EC: @ 81436EC
-	push {lr}
-	sub sp, 0xC
-	mov r1, sp
-	ldr r2, _08143730 @ =0x04000208
-	ldrh r0, [r2]
-	strh r0, [r1]
-	movs r0, 0
-	strh r0, [r2]
-	ldr r0, _08143734 @ =gUnknown_3003FB4
-	ldr r1, [r0, 0x4]
-	ldr r0, [r0]
-	str r0, [sp, 0x4]
-	str r1, [sp, 0x8]
-	mov r0, sp
-	ldrh r0, [r0]
-	strh r0, [r2]
-	add r2, sp, 0x4
-	ldrh r1, [r2]
-	ldr r0, _08143738 @ =0x0000b9a0
-	cmp r1, r0
-	bne _08143744
-	ldrh r1, [r2, 0x2]
-	ldr r0, _0814373C @ =0x0000ccd0
-	cmp r1, r0
-	bne _08143744
-	ldrh r1, [r2, 0x4]
-	ldr r0, _08143740 @ =0x0000ffff
-	cmp r1, r0
-	bne _08143744
-	ldrh r0, [r2, 0x6]
-	cmp r0, r1
-	bne _08143744
-	movs r0, 0x1
-	b _08143746
-	.align 2, 0
-_08143730: .4byte 0x04000208
-_08143734: .4byte gUnknown_3003FB4
-_08143738: .4byte 0x0000b9a0
-_0814373C: .4byte 0x0000ccd0
-_08143740: .4byte 0x0000ffff
-_08143744:
-	movs r0, 0
-_08143746:
-	add sp, 0xC
-	pop {r1}
-	bx r1
-	thumb_func_end sub_81436EC
-
 	thumb_func_start sub_814374C
 sub_814374C: @ 814374C
 	push {lr}

include/link.h

@@ -146,6 +146,10 @@ extern u16 word_3002910[];
 extern bool8 gReceivedRemoteLinkPlayers;
 extern bool8 gLinkVSyncDisabled;
 
+extern u8 gUnknown_3003F84;
+extern u64 gUnknown_3003FB4;
+extern u16 gUnknown_202271A;
+
 void Task_DestroySelf(u8);
 void OpenLink(void);
 void CloseLink(void);
@@ -196,5 +200,6 @@ void sub_8011BD0(void);
 u8 sub_800ABAC(void);
 u8 sub_800ABBC(void);
 void sub_800AC34(void);
+void sub_8009804(void);
 
 #endif // GUARD_LINK_H

include/main.h

@@ -9,6 +9,8 @@ typedef void (*MainCallback)(void);
 typedef void (*IntrCallback)(void);
 typedef void (*IntrFunc)(void);
 
+extern IntrFunc gIntrTable[];
+
 struct Main
 {
     /*0x000*/ MainCallback callback1;
@@ -62,5 +64,6 @@ void SetSerialCallback(IntrCallback callback);
 void InitFlashTimer(void);
 void DoSoftReset(void);
 void ClearPokemonCrySongs(void);
+void RestoreSerialTimer3IntrHandlers(void);
 
 #endif // GUARD_MAIN_H

include/unk_815c27c.h

@@ -0,0 +1,11 @@
+#ifndef GUARD_UNK_815C27C_H
+#define GUARD_UNK_815C27C_H
+
+void sub_815C6D4(void);
+void sub_815C6C4(void);
+void sub_815C8C8(void);
+void sub_815C960(void);
+void sub_815C91C(void);
+u16 sub_815C498(u8, u32, u32, u8);
+
+#endif //GUARD_UNK_815C27C_H

ld_script.txt

@@ -243,6 +243,7 @@ SECTIONS {
         asm/roamer.o(.text);
         asm/mystery_gift_menu.o(.text);
         asm/link_rfu_4.o(.text);
+        src/mevent.o(.text);
         asm/mevent.o(.text);
         asm/mevent_server.o(.text);
         asm/mevent_8145654.o(.text);

src/mevent.c

@@ -0,0 +1,75 @@
+#include "global.h"
+#include "main.h"
+#include "decompress.h"
+#include "link.h"
+#include "unk_815c27c.h"
+
+struct MEvent_Str_1
+{
+    u16 unk_000;
+    u32 unk_004;
+    u32 unk_008;
+};
+
+void sub_81435DC(struct MEvent_Str_1 *a0, u32 a1, u32 a2)
+{
+    vu16 imeBak = REG_IME;
+    REG_IME = 0;
+    gIntrTable[1] = sub_815C6D4;
+    gIntrTable[2] = sub_815C6C4;
+    sub_815C8C8();
+    sub_815C960();
+    REG_IE |= INTR_FLAG_VCOUNT;
+    REG_IME = imeBak;
+    a0->unk_000 = 0;
+    a0->unk_004 = a1;
+    a0->unk_008 = a2;
+}
+
+void sub_8143644(void)
+{
+    vu16 imeBak = REG_IME;
+    REG_IME = 0;
+    sub_815C960();
+    sub_815C91C();
+    RestoreSerialTimer3IntrHandlers();
+    REG_IME = imeBak;
+}
+
+u8 sub_8143674(struct MEvent_Str_1 *a0)
+{
+    u8 resp = 0;
+    a0->unk_000 = sub_815C498(1, a0->unk_004, a0->unk_008, 0);
+    if ((a0->unk_000 & 0x13) == 0x10)
+        resp = 1;
+    if (a0->unk_000 & 8)
+        resp = 2;
+    if (a0->unk_000 & 4)
+        resp = 3;
+    gUnknown_3003F84 = 0;
+    return resp;
+}
+
+void sub_81436BC(void)
+{
+    memset(gDecompressionBuffer, 0, 0x2000);
+    gUnknown_202271A = 0x5502;
+    sub_8009804();
+    SetSuppressLinkErrorMessage(TRUE);
+}
+
+bool8 sub_81436EC(void)
+{
+    vu16 imeBak = REG_IME;
+    u16 data[4];
+    REG_IME = 0;
+    *(u64 *)data = gUnknown_3003FB4;
+    REG_IME = imeBak;
+    if (   data[0] == 0xB9A0
+        && data[1] == 0xCCD0
+        && data[2] == 0xFFFF
+        && data[3] == 0xFFFF
+    )
+        return TRUE;
+    return FALSE;
+}