through sub_8009FAC

asm/link.s

@@ -5,102 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_8009F18
-sub_8009F18: @ 8009F18
-	push {lr}
-	ldr r0, =gLinkVSyncDisabled
-	ldrb r0, [r0]
-	cmp r0, 0
-	beq _08009F26
-	bl sub_800F804
-_08009F26:
-	ldr r1, =gUnknown_03003140
-	ldr r0, =sub_8009F70
-	str r0, [r1]
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8009F18
-
-	thumb_func_start sub_8009F3C
-sub_8009F3C: @ 8009F3C
-	push {lr}
-	ldr r0, =gLinkVSyncDisabled
-	ldrb r0, [r0]
-	cmp r0, 0
-	beq _08009F50
-	bl sub_800F7E4
-	b _08009F6A
-	.pool
-_08009F50:
-	ldr r0, =gUnknown_03003140
-	ldr r1, [r0]
-	ldr r0, =sub_8009F70
-	cmp r1, r0
-	beq _08009F68
-	movs r0, 0
-	b _08009F6A
-	.pool
-_08009F68:
-	movs r0, 0x1
-_08009F6A:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8009F3C
-
-	thumb_func_start sub_8009F70
-sub_8009F70: @ 8009F70
-	push {lr}
-	ldr r0, =gReceivedRemoteLinkPlayers
-	ldrb r0, [r0]
-	cmp r0, 0x1
-	bne _08009F80
-	ldr r0, =0x0000cafe
-	bl sub_8009D90
-_08009F80:
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8009F70
-
-	thumb_func_start sub_8009F8C
-sub_8009F8C: @ 8009F8C
-	push {lr}
-	ldr r0, =gLinkVSyncDisabled
-	ldrb r1, [r0]
-	cmp r1, 0
-	beq _08009FA0
-	bl Rfu_set_zero
-	b _08009FA4
-	.pool
-_08009FA0:
-	ldr r0, =gUnknown_03003140
-	str r1, [r0]
-_08009FA4:
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8009F8C
-
-	thumb_func_start sub_8009FAC
-sub_8009FAC: @ 8009FAC
-	push {lr}
-	ldr r0, =gLinkVSyncDisabled
-	ldrb r1, [r0]
-	cmp r1, 0
-	beq _08009FC0
-	bl Rfu_set_zero
-	b _08009FC4
-	.pool
-_08009FC0:
-	ldr r0, =gUnknown_03003140
-	str r1, [r0]
-_08009FC4:
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8009FAC
-
 	thumb_func_start GetLinkPlayerCount
 GetLinkPlayerCount: @ 8009FCC
 	push {lr}

src/link.c

@@ -109,6 +109,7 @@ void sub_8009638(void);
 void sub_80096BC(void);
 static void c2_08009A8C(void);
 static void sub_8009AA0(u8 unused);
+void sub_8009F70(void);
 void sub_800A2E0(void);
 void sub_800A2F4(void *heapptr, size_t src);
 void sub_800A418(void);
@@ -127,6 +128,9 @@ void sub_800B594(void);
 u32 sub_800BEC0(void);
 void sub_800E700(void);
 void sub_800EDD4(void);
+bool32 sub_800F7E4(void);
+void sub_800F804(void);
+void Rfu_set_zero(void);
 
 // .rodata
 
@@ -641,3 +645,57 @@ void sub_8009D90(u16 command)
             break;
     }
 }
+
+void sub_8009F18(void)
+{
+    if (gLinkVSyncDisabled)
+    {
+        sub_800F804();
+    }
+    gUnknown_03003140 = sub_8009F70;
+}
+
+bool32 sub_8009F3C(void)
+{
+    if (gLinkVSyncDisabled)
+    {
+        return sub_800F7E4();
+    }
+    if (gUnknown_03003140 == sub_8009F70)
+    {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+void sub_8009F70(void)
+{
+    if (gReceivedRemoteLinkPlayers == TRUE)
+    {
+        sub_8009D90(0xcafe);
+    }
+}
+
+void sub_8009F8C(void)
+{
+    if (gLinkVSyncDisabled)
+    {
+        Rfu_set_zero();
+    }
+    else
+    {
+        gUnknown_03003140 = NULL;
+    }
+}
+
+void sub_8009FAC(void)
+{
+    if (gLinkVSyncDisabled)
+    {
+        Rfu_set_zero();
+    }
+    else
+    {
+        gUnknown_03003140 = NULL;
+    }
+}