through sub_81298F8

5 files changed, 342 insertions, 779 deletions

diff --git a/asm/union_room_chat.s b/asm/union_room_chat.s
index 24e341f0d..422a8786b 100644
--- a/asm/union_room_chat.s
+++ b/asm/union_room_chat.s
@@ -5,766 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_8129568
-sub_8129568: @ 8129568
-	push {r4,lr}
-	adds r4, r0, 0
-	movs r0, 0x2
-	strb r0, [r4]
-	adds r0, r4, 0x1
-	ldr r1, _08129588 @ =gSaveBlock2Ptr
-	ldr r1, [r1]
-	bl StringCopy
-	ldr r0, _0812958C @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x13]
-	strb r0, [r4, 0x9]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08129588: .4byte gSaveBlock2Ptr
-_0812958C: .4byte gUnknown_203B0E0
-	thumb_func_end sub_8129568
-
-	thumb_func_start sub_8129590
-sub_8129590: @ 8129590
-	push {r4,lr}
-	adds r4, r0, 0
-	movs r0, 0x1
-	strb r0, [r4]
-	adds r0, r4, 0x1
-	ldr r1, _081295B8 @ =gSaveBlock2Ptr
-	ldr r1, [r1]
-	bl StringCopy
-	adds r4, 0x9
-	ldr r0, _081295BC @ =gUnknown_203B0E0
-	ldr r1, [r0]
-	adds r1, 0x1A
-	adds r0, r4, 0
-	bl StringCopy
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_081295B8: .4byte gSaveBlock2Ptr
-_081295BC: .4byte gUnknown_203B0E0
-	thumb_func_end sub_8129590
-
-	thumb_func_start sub_81295C0
-sub_81295C0: @ 81295C0
-	push {r4,lr}
-	adds r4, r0, 0
-	movs r0, 0x3
-	strb r0, [r4]
-	adds r0, r4, 0x1
-	ldr r1, _081295E4 @ =gSaveBlock2Ptr
-	ldr r1, [r1]
-	bl StringCopy
-	ldr r0, _081295E8 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x13]
-	strb r0, [r4, 0x9]
-	bl sub_80FB9D0
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_081295E4: .4byte gSaveBlock2Ptr
-_081295E8: .4byte gUnknown_203B0E0
-	thumb_func_end sub_81295C0
-
-	thumb_func_start sub_81295EC
-sub_81295EC: @ 81295EC
-	push {r4,lr}
-	adds r4, r0, 0
-	movs r0, 0x4
-	strb r0, [r4]
-	adds r0, r4, 0x1
-	ldr r1, _0812960C @ =gSaveBlock2Ptr
-	ldr r1, [r1]
-	bl StringCopy
-	ldr r0, _08129610 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x13]
-	strb r0, [r4, 0x9]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812960C: .4byte gSaveBlock2Ptr
-_08129610: .4byte gUnknown_203B0E0
-	thumb_func_end sub_81295EC
-
-	thumb_func_start sub_8129614
-sub_8129614: @ 8129614
-	push {r4,lr}
-	adds r4, r0, 0
-	movs r0, 0x5
-	strb r0, [r4]
-	adds r0, r4, 0x1
-	ldr r1, _08129634 @ =gSaveBlock2Ptr
-	ldr r1, [r1]
-	bl StringCopy
-	ldr r0, _08129638 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x13]
-	strb r0, [r4, 0x9]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08129634: .4byte gSaveBlock2Ptr
-_08129638: .4byte gUnknown_203B0E0
-	thumb_func_end sub_8129614
-
-	thumb_func_start sub_812963C
-sub_812963C: @ 812963C
-	push {r4-r6,lr}
-	adds r6, r0, 0
-	adds r5, r1, 0
-	ldrb r0, [r5]
-	adds r1, r0, 0
-	adds r4, r5, 0x1
-	adds r5, r4, 0
-	adds r5, 0x8
-	cmp r0, 0x2
-	beq _08129664
-	cmp r0, 0x2
-	bgt _0812965A
-	cmp r0, 0x1
-	beq _08129688
-	b _081296EC
-_0812965A:
-	cmp r1, 0x3
-	beq _081296BE
-	cmp r1, 0x5
-	beq _081296B2
-	b _081296EC
-_08129664:
-	ldr r0, _08129680 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x13]
-	ldrb r1, [r4, 0x8]
-	cmp r0, r1
-	beq _081296EC
-	bl DynamicPlaceholderTextUtil_Reset
-	movs r0, 0
-	adds r1, r4, 0
-	bl DynamicPlaceholderTextUtil_SetPlaceholderPtr
-	ldr r1, _08129684 @ =gUnknown_841B3AA
-	b _081296D8
-	.align 2, 0
-_08129680: .4byte gUnknown_203B0E0
-_08129684: .4byte gUnknown_841B3AA
-_08129688:
-	adds r0, r6, 0
-	adds r1, r4, 0
-	bl StringCopy
-	movs r1, 0xFC
-	strb r1, [r0]
-	adds r0, 0x1
-	movs r1, 0x13
-	strb r1, [r0]
-	adds r0, 0x1
-	movs r1, 0x2A
-	strb r1, [r0]
-	adds r0, 0x1
-	movs r1, 0xF0
-	strb r1, [r0]
-	adds r0, 0x1
-	adds r1, r5, 0
-	bl StringCopy
-	movs r0, 0x1
-	b _081296EE
-_081296B2:
-	ldr r0, _081296E4 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	adds r0, 0x79
-	adds r1, r4, 0
-	bl StringCopy
-_081296BE:
-	ldr r0, _081296E4 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x13]
-	ldrb r5, [r5]
-	cmp r0, r5
-	beq _081296EC
-	bl DynamicPlaceholderTextUtil_Reset
-	movs r0, 0
-	adds r1, r4, 0
-	bl DynamicPlaceholderTextUtil_SetPlaceholderPtr
-	ldr r1, _081296E8 @ =gUnknown_841B3BE
-_081296D8:
-	adds r0, r6, 0
-	bl DynamicPlaceholderTextUtil_ExpandPlaceholders
-	movs r0, 0x1
-	b _081296EE
-	.align 2, 0
-_081296E4: .4byte gUnknown_203B0E0
-_081296E8: .4byte gUnknown_841B3BE
-_081296EC:
-	movs r0, 0
-_081296EE:
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_812963C
-
-	thumb_func_start sub_81296F4
-sub_81296F4: @ 81296F4
-	ldr r0, _081296FC @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x10]
-	bx lr
-	.align 2, 0
-_081296FC: .4byte gUnknown_203B0E0
-	thumb_func_end sub_81296F4
-
-	thumb_func_start sub_8129700
-sub_8129700: @ 8129700
-	ldr r2, _08129710 @ =gUnknown_203B0E0
-	ldr r3, [r2]
-	ldrb r2, [r3, 0x11]
-	strb r2, [r0]
-	ldrb r0, [r3, 0x12]
-	strb r0, [r1]
-	bx lr
-	.align 2, 0
-_08129710: .4byte gUnknown_203B0E0
-	thumb_func_end sub_8129700
-
-	thumb_func_start sub_8129714
-sub_8129714: @ 8129714
-	ldr r0, _0812971C @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	adds r0, 0x1A
-	bx lr
-	.align 2, 0
-_0812971C: .4byte gUnknown_203B0E0
-	thumb_func_end sub_8129714
-
-	thumb_func_start sub_8129720
-sub_8129720: @ 8129720
-	push {lr}
-	bl sub_8129714
-	bl StringLength_Multibyte
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8129720
-
-	thumb_func_start sub_8129730
-sub_8129730: @ 8129730
-	push {r4,lr}
-	adds r4, r0, 0
-	ldr r0, _08129748 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r3, [r0, 0x15]
-	ldrb r2, [r0, 0x14]
-	subs r0, r3, r2
-	cmp r0, 0
-	bge _0812974C
-	negs r0, r0
-	str r3, [r4]
-	b _0812974E
-	.align 2, 0
-_08129748: .4byte gUnknown_203B0E0
-_0812974C:
-	str r2, [r4]
-_0812974E:
-	str r0, [r1]
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8129730
-
-	thumb_func_start sub_8129758
-sub_8129758: @ 8129758
-	push {lr}
-	bl sub_812951C
-	lsls r0, 16
-	lsrs r2, r0, 16
-	ldr r0, _08129784 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	adds r1, r0, 0
-	adds r1, 0x1A
-	cmp r2, 0
-	beq _0812977E
-_0812976E:
-	ldrb r0, [r1]
-	cmp r0, 0xF9
-	bne _08129776
-	adds r1, 0x1
-_08129776:
-	adds r1, 0x1
-	subs r2, 0x1
-	cmp r2, 0
-	bne _0812976E
-_0812977E:
-	adds r0, r1, 0
-	pop {r1}
-	bx r1
-	.align 2, 0
-_08129784: .4byte gUnknown_203B0E0
-	thumb_func_end sub_8129758
-
-	thumb_func_start sub_8129788
-sub_8129788: @ 8129788
-	push {r4,lr}
-	bl sub_812951C
-	lsls r0, 16
-	lsrs r4, r0, 16
-	ldr r0, _081297C0 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	adds r1, r0, 0
-	adds r1, 0x1A
-	movs r2, 0
-	movs r3, 0
-	cmp r2, r4
-	bcs _081297B8
-_081297A2:
-	ldrb r0, [r1]
-	cmp r0, 0xF9
-	bne _081297AA
-	adds r1, 0x1
-_081297AA:
-	adds r1, 0x1
-	adds r0, r2, 0x1
-	lsls r0, 16
-	lsrs r2, r0, 16
-	adds r3, 0x1
-	cmp r3, r4
-	bcc _081297A2
-_081297B8:
-	adds r0, r2, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_081297C0: .4byte gUnknown_203B0E0
-	thumb_func_end sub_8129788
-
-	thumb_func_start sub_81297C4
-sub_81297C4: @ 81297C4
-	ldr r0, _081297CC @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	adds r0, 0x39
-	bx lr
-	.align 2, 0
-_081297CC: .4byte gUnknown_203B0E0
-	thumb_func_end sub_81297C4
-
-	thumb_func_start sub_81297D0
-sub_81297D0: @ 81297D0
-	ldr r0, _081297D8 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x16]
-	bx lr
-	.align 2, 0
-_081297D8: .4byte gUnknown_203B0E0
-	thumb_func_end sub_81297D0
-
-	thumb_func_start sub_81297DC
-sub_81297DC: @ 81297DC
-	ldr r0, _081297E4 @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x15]
-	bx lr
-	.align 2, 0
-_081297E4: .4byte gUnknown_203B0E0
-	thumb_func_end sub_81297DC
-
-	thumb_func_start sub_81297E8
-sub_81297E8: @ 81297E8
-	push {lr}
-	bl sub_81294EC
-	ldrb r1, [r0]
-	cmp r1, 0xFF
-	bhi _08129802
-	ldr r0, _08129808 @ =gUnknown_845A8AC
-	adds r0, r1, r0
-	ldrb r0, [r0]
-	cmp r0, r1
-	beq _08129802
-	cmp r0, 0
-	bne _0812980C
-_08129802:
-	movs r0, 0x3
-	b _0812980E
-	.align 2, 0
-_08129808: .4byte gUnknown_845A8AC
-_0812980C:
-	movs r0, 0
-_0812980E:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_81297E8
-
-	thumb_func_start sub_8129814
-sub_8129814: @ 8129814
-	ldr r0, _0812981C @ =gUnknown_203B0E0
-	ldr r0, [r0]
-	adds r0, 0x79
-	bx lr
-	.align 2, 0
-_0812981C: .4byte gUnknown_203B0E0
-	thumb_func_end sub_8129814
-
-	thumb_func_start copy_strings_to_sav1
-copy_strings_to_sav1: @ 8129820
-	push {r4,lr}
-	ldr r4, _081298A4 @ =gSaveBlock1Ptr
-	ldr r0, [r4]
-	ldr r1, _081298A8 @ =0x00003ad4
-	adds r0, r1
-	ldr r1, _081298AC @ =gUnknown_841B510
-	bl StringCopy
-	ldr r0, [r4]
-	ldr r1, _081298B0 @ =0x00003ae9
-	adds r0, r1
-	ldr r1, _081298B4 @ =gUnknown_841B516
-	bl StringCopy
-	ldr r0, [r4]
-	ldr r1, _081298B8 @ =0x00003afe
-	adds r0, r1
-	ldr r1, _081298BC @ =gUnknown_841B51E
-	bl StringCopy
-	ldr r0, [r4]
-	ldr r1, _081298C0 @ =0x00003b13
-	adds r0, r1
-	ldr r1, _081298C4 @ =gUnknown_841B524
-	bl StringCopy
-	ldr r0, [r4]
-	ldr r1, _081298C8 @ =0x00003b28
-	adds r0, r1
-	ldr r1, _081298CC @ =gUnknown_841B52B
-	bl StringCopy
-	ldr r0, [r4]
-	ldr r1, _081298D0 @ =0x00003b3d
-	adds r0, r1
-	ldr r1, _081298D4 @ =gUnknown_841B531
-	bl StringCopy
-	ldr r0, [r4]
-	ldr r1, _081298D8 @ =0x00003b52
-	adds r0, r1
-	ldr r1, _081298DC @ =gUnknown_841B535
-	bl StringCopy
-	ldr r0, [r4]
-	ldr r1, _081298E0 @ =0x00003b67
-	adds r0, r1
-	ldr r1, _081298E4 @ =gUnknown_841B53B
-	bl StringCopy
-	ldr r0, [r4]
-	ldr r1, _081298E8 @ =0x00003b7c
-	adds r0, r1
-	ldr r1, _081298EC @ =gUnknown_841B541
-	bl StringCopy
-	ldr r0, [r4]
-	ldr r1, _081298F0 @ =0x00003b91
-	adds r0, r1
-	ldr r1, _081298F4 @ =gUnknown_841B54B
-	bl StringCopy
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_081298A4: .4byte gSaveBlock1Ptr
-_081298A8: .4byte 0x00003ad4
-_081298AC: .4byte gUnknown_841B510
-_081298B0: .4byte 0x00003ae9
-_081298B4: .4byte gUnknown_841B516
-_081298B8: .4byte 0x00003afe
-_081298BC: .4byte gUnknown_841B51E
-_081298C0: .4byte 0x00003b13
-_081298C4: .4byte gUnknown_841B524
-_081298C8: .4byte 0x00003b28
-_081298CC: .4byte gUnknown_841B52B
-_081298D0: .4byte 0x00003b3d
-_081298D4: .4byte gUnknown_841B531
-_081298D8: .4byte 0x00003b52
-_081298DC: .4byte gUnknown_841B535
-_081298E0: .4byte 0x00003b67
-_081298E4: .4byte gUnknown_841B53B
-_081298E8: .4byte 0x00003b7c
-_081298EC: .4byte gUnknown_841B541
-_081298F0: .4byte 0x00003b91
-_081298F4: .4byte gUnknown_841B54B
-	thumb_func_end copy_strings_to_sav1
-
-	thumb_func_start sub_81298F8
-sub_81298F8: @ 81298F8
-	push {r4-r6,lr}
-	lsls r0, 24
-	lsrs r5, r0, 24
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 3
-	ldr r1, _0812991C @ =gTasks+0x8
-	adds r4, r0, r1
-	movs r1, 0
-	ldrsh r0, [r4, r1]
-	cmp r0, 0x7
-	bls _08129912
-	b _08129B08
-_08129912:
-	lsls r0, 2
-	ldr r1, _08129920 @ =_08129924
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_0812991C: .4byte gTasks+0x8
-_08129920: .4byte _08129924
-	.align 2, 0
-_08129924:
-	.4byte _08129944
-	.4byte _08129952
-	.4byte _08129AEC
-	.4byte _081299A0
-	.4byte _08129A8C
-	.4byte _08129AC4
-	.4byte _08129AD8
-	.4byte _08129A7C
-_08129944:
-	ldr r0, _08129978 @ =gReceivedRemoteLinkPlayers
-	ldrb r0, [r0]
-	cmp r0, 0
-	bne _0812994E
-	b _08129AE0
-_0812994E:
-	movs r0, 0x1
-	strh r0, [r4]
-_08129952:
-	bl GetLinkPlayerCount
-	lsls r0, 24
-	lsrs r0, 24
-	adds r2, r0, 0
-	strh r0, [r4, 0x8]
-	ldr r3, _0812997C @ =gUnknown_203B0E0
-	ldr r0, [r3]
-	ldrb r1, [r0, 0xD]
-	movs r5, 0x8
-	ldrsh r0, [r4, r5]
-	cmp r1, r0
-	beq _08129980
-	movs r0, 0x2
-	strh r0, [r4]
-	ldr r0, [r3]
-	strb r2, [r0, 0xD]
-	b _08129B08
-	.align 2, 0
-_08129978: .4byte gReceivedRemoteLinkPlayers
-_0812997C: .4byte gUnknown_203B0E0
-_08129980:
-	bl GetBlockReceivedStatus
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r4, 0x6]
-	cmp r0, 0
-	bne _08129998
-	bl sub_80FBA1C
-	cmp r0, 0
-	beq _08129998
-	b _08129B08
-_08129998:
-	movs r0, 0
-	strh r0, [r4, 0x2]
-	movs r0, 0x3
-	strh r0, [r4]
-_081299A0:
-	movs r1, 0x2
-	ldrsh r0, [r4, r1]
-	cmp r0, 0x4
-	bgt _081299DA
-	movs r2, 0x6
-	ldrsh r0, [r4, r2]
-	movs r3, 0x2
-	ldrsh r1, [r4, r3]
-	asrs r0, r1
-	movs r1, 0x1
-	ands r0, r1
-	cmp r0, 0
-	bne _081299DA
-	movs r2, 0x1
-_081299BC:
-	ldrh r0, [r4, 0x2]
-	adds r0, 0x1
-	strh r0, [r4, 0x2]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x4
-	bgt _081299DA
-	movs r5, 0x6
-	ldrsh r0, [r4, r5]
-	movs r3, 0x2
-	ldrsh r1, [r4, r3]
-	asrs r0, r1
-	ands r0, r2
-	cmp r0, 0
-	beq _081299BC
-_081299DA:
-	ldrh r1, [r4, 0x2]
-	movs r5, 0x2
-	ldrsh r0, [r4, r5]
-	cmp r0, 0x5
-	bne _081299E6
-	b _08129B04
-_081299E6:
-	strh r1, [r4, 0x4]
-	lsls r0, r1, 24
-	lsrs r0, 24
-	bl ResetBlockReceivedFlag
-	movs r1, 0x2
-	ldrsh r0, [r4, r1]
-	lsls r0, 8
-	ldr r1, _08129A0C @ =gBlockRecvBuffer
-	adds r0, r1
-	ldrb r0, [r0]
-	subs r0, 0x1
-	cmp r0, 0x4
-	bhi _08129A28
-	lsls r0, 2
-	ldr r1, _08129A10 @ =_08129A14
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_08129A0C: .4byte gBlockRecvBuffer
-_08129A10: .4byte _08129A14
-	.align 2, 0
-_08129A14:
-	.4byte _08129A28
-	.4byte _08129A2C
-	.4byte _08129A30
-	.4byte _08129A34
-	.4byte _08129A38
-_08129A28:
-	movs r0, 0x3
-	b _08129A3A
-_08129A2C:
-	movs r0, 0x3
-	b _08129A3A
-_08129A30:
-	movs r0, 0x4
-	b _08129A3A
-_08129A34:
-	movs r0, 0x5
-	b _08129A3A
-_08129A38:
-	movs r0, 0x6
-_08129A3A:
-	strh r0, [r4, 0xA]
-	ldr r5, _08129A68 @ =gUnknown_203B0E0
-	ldr r0, [r5]
-	adds r0, 0x39
-	movs r2, 0x2
-	ldrsh r1, [r4, r2]
-	lsls r1, 8
-	ldr r2, _08129A6C @ =gBlockRecvBuffer
-	adds r1, r2
-	bl sub_812963C
-	cmp r0, 0
-	beq _08129A70
-	ldr r0, [r5]
-	ldrh r1, [r4, 0x2]
-	strb r1, [r0, 0x16]
-	movs r0, 0xC
-	movs r1, 0x2
-	bl sub_8129C34
-	movs r0, 0x7
-	b _08129A72
-	.align 2, 0
-_08129A68: .4byte gUnknown_203B0E0
-_08129A6C: .4byte gBlockRecvBuffer
-_08129A70:
-	ldrh r0, [r4, 0xA]
-_08129A72:
-	strh r0, [r4]
-	ldrh r0, [r4, 0x2]
-	adds r0, 0x1
-	strh r0, [r4, 0x2]
-	b _08129B08
-_08129A7C:
-	movs r0, 0x2
-	bl sub_8129C8C
-	lsls r0, 24
-	cmp r0, 0
-	bne _08129B08
-	ldrh r0, [r4, 0xA]
-	b _08129B06
-_08129A8C:
-	ldr r6, _08129AB4 @ =gUnknown_203B0E0
-	ldr r0, [r6]
-	ldrb r0, [r0, 0x13]
-	cmp r0, 0
-	bne _08129AC0
-	movs r3, 0x4
-	ldrsh r0, [r4, r3]
-	cmp r0, 0
-	beq _08129AC0
-	bl GetLinkPlayerCount
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x2
-	bne _08129AB8
-	bl sub_80FA4A8
-	ldr r1, [r6]
-	movs r0, 0x1
-	b _08129ADE
-	.align 2, 0
-_08129AB4: .4byte gUnknown_203B0E0
-_08129AB8:
-	movs r5, 0x4
-	ldrsh r0, [r4, r5]
-	bl sub_80FBD6C
-_08129AC0:
-	movs r0, 0x3
-	b _08129B06
-_08129AC4:
-	ldr r0, _08129AD4 @ =gUnknown_203B0E0
-	ldr r1, [r0]
-	ldrb r0, [r1, 0x13]
-	cmp r0, 0
-	beq _08129AE0
-	movs r0, 0x2
-	b _08129ADE
-	.align 2, 0
-_08129AD4: .4byte gUnknown_203B0E0
-_08129AD8:
-	ldr r0, _08129AE8 @ =gUnknown_203B0E0
-	ldr r1, [r0]
-	movs r0, 0x3
-_08129ADE:
-	strb r0, [r1, 0x17]
-_08129AE0:
-	adds r0, r5, 0
-	bl DestroyTask
-	b _08129B08
-	.align 2, 0
-_08129AE8: .4byte gUnknown_203B0E0
-_08129AEC:
-	bl sub_80FBA1C
-	cmp r0, 0
-	bne _08129B08
-	ldr r0, _08129B10 @ =gUnknown_203B0E0
-	ldr r1, [r0]
-	ldrb r0, [r1, 0x13]
-	cmp r0, 0
-	bne _08129B04
-	ldrb r0, [r1, 0xD]
-	bl sub_80FB030
-_08129B04:
-	movs r0, 0x1
-_08129B06:
-	strh r0, [r4]
-_08129B08:
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08129B10: .4byte gUnknown_203B0E0
-	thumb_func_end sub_81298F8
-
 	thumb_func_start sub_8129B14
 sub_8129B14: @ 8129B14
 	push {r4,lr}
@@ -2497,7 +1737,7 @@ sub_812A804: @ 812A804
 	movs r0, 0x2
 	movs r1, 0xFF
 	bl FillWindowPixelBuffer
-	bl sub_81296F4
+	bl GetCurrentKeyboardPage
 	lsls r0, 24
 	lsrs r2, r0, 24
 	add r1, sp, 0xC
@@ -2774,7 +2014,7 @@ sub_812AA10: @ 812AA10
 	movs r2, 0xE
 	movs r3, 0x5
 	bl UnionRoomAndTradeMenuPrintOptions
-	bl sub_81296F4
+	bl GetCurrentKeyboardPage
 	lsls r0, 24
 	lsrs r0, 24
 	movs r1, 0xE
@@ -3388,7 +2628,7 @@ _0812AF18: .4byte gUnknown_203B0E8
 sub_812AF1C: @ 812AF1C
 	push {r4,r5,lr}
 	sub sp, 0x4
-	bl sub_81296F4
+	bl GetCurrentKeyboardPage
 	adds r4, r0, 0
 	lsls r4, 24
 	lsrs r4, 24
@@ -3470,7 +2710,7 @@ _0812AFBC: .4byte 0x01010000
 	thumb_func_start sub_812AFC0
 sub_812AFC0: @ 812AFC0
 	push {lr}
-	bl sub_81296F4
+	bl GetCurrentKeyboardPage
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x3
@@ -3520,7 +2760,7 @@ _0812B010:
 	lsrs r0, 16
 	cmp r0, 0x3
 	bls _0812B040
-	bl sub_81296F4
+	bl GetCurrentKeyboardPage
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x3
@@ -3692,7 +2932,7 @@ _0812B15C: .4byte gUnknown_845B068
 	thumb_func_start sub_812B160
 sub_812B160: @ 812B160
 	push {r4,lr}
-	bl sub_81296F4
+	bl GetCurrentKeyboardPage
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x3
diff --git a/data/strings.s b/data/strings.s
index e77730429..4102d3616 100644
--- a/data/strings.s
+++ b/data/strings.s
@@ -3123,10 +3123,10 @@ gUnknown_841B38A:: @ 0x841B38A
 gUnknown_841B39E:: @ 0x841B39E
 	.string "Input text.$"
 
-gUnknown_841B3AA:: @ 841B3AA
+gText_F700JoinedChat:: @ 841B3AA
 	.string "{DYNAMIC 0x00} joined the chat!$"
 
-gUnknown_841B3BE:: @ 841B3BE
+gText_F700LeftChat:: @ 841B3BE
 	.string "{DYNAMIC 0x00} left the chat.$"
 
 gUnknown_841B3D0:: @ 0x841B3D0
@@ -3161,34 +3161,34 @@ gUnknown_841B4D9:: @ 0x841B4D9
 	.string "If the LEADER leaves, the chat\n"
 	.string "will end. Is that okay?$"
 
-gUnknown_841B510:: @ 841B510
+gText_Hello:: @ 841B510
 	.string "HELLO$"
 
-gUnknown_841B516:: @ 841B516
+gText_Pokemon2:: @ 841B516
 	.string "POKéMON$"
 
-gUnknown_841B51E:: @ 841B51E
+gText_Trade:: @ 841B51E
 	.string "TRADE$"
 
-gUnknown_841B524:: @ 841B524
+gText_Battle:: @ 841B524
 	.string "BATTLE$"
 
-gUnknown_841B52B:: @ 841B52B
+gText_Lets:: @ 841B52B
 	.string "LET'S$"
 
-gUnknown_841B531:: @ 841B531
+gText_Ok:: @ 841B531
 	.string "OK!$"
 
-gUnknown_841B535:: @ 841B535
+gText_Sorry:: @ 841B535
 	.string "SORRY$"
 
-gUnknown_841B53B:: @ 841B53B
+gText_YaySmileEmoji:: @ 841B53B
 	.string "YAY{EXTRA 0xF9}$"
 
-gUnknown_841B541:: @ 841B541
+gText_ThankYou:: @ 841B541
 	.string "THANK YOU$"
 
-gUnknown_841B54B:: @ 841B54B
+gText_ByeBye:: @ 841B54B
 	.string "BYE-BYE!$"
 
 gUnknown_841B554:: @ 841B554
diff --git a/include/link_rfu.h b/include/link_rfu.h
index 9dac781b3..8e4da4d87 100644
--- a/include/link_rfu.h
+++ b/include/link_rfu.h
@@ -327,6 +327,8 @@ bool8 sub_80FCC3C(struct GFtgtGname *gname, u8 *uname, u8 idx);
 bool8 sub_80FCCF4(struct GFtgtGname *gname, u8 *uname, u8 idx);
 bool32 sub_80FBA1C(void);
 void sub_80FA4A8(void);
+void sub_80FB9D0(void);
+void sub_80FB030(u32 a0);
 
 #include "mevent_server.h"
 extern const struct mevent_server_cmd gMEventSrvScript_OtherTrainerCanceled[];
diff --git a/include/strings.h b/include/strings.h
index a57493a9b..81cbc63c1 100644
--- a/include/strings.h
+++ b/include/strings.h
@@ -1061,4 +1061,18 @@ extern const u8 gText_CommStandbyAwaitingOtherPlayer[];
 extern const u8 gText_RefusedBattle[];
 extern const u8 gText_BattleWasRefused[];
 
+// union_room_chat
+extern const u8 gText_F700JoinedChat[];
+extern const u8 gText_F700LeftChat[];
+extern const u8 gText_Hello[];
+extern const u8 gText_Pokemon2[];
+extern const u8 gText_Trade[];
+extern const u8 gText_Battle[];
+extern const u8 gText_Lets[];
+extern const u8 gText_Ok[];
+extern const u8 gText_Sorry[];
+extern const u8 gText_YaySmileEmoji[];
+extern const u8 gText_ThankYou[];
+extern const u8 gText_ByeBye[];
+
 #endif //GUARD_STRINGS_H
diff --git a/src/union_room_chat.c b/src/union_room_chat.c
index c171731c2..abd763367 100644
--- a/src/union_room_chat.c
+++ b/src/union_room_chat.c
@@ -1,5 +1,6 @@
 #include "global.h"
 #include "gflib.h"
+#include "dynamic_placeholder_text_util.h"
 #include "help_system.h"
 #include "link.h"
 #include "link_rfu.h"
@@ -10,6 +11,7 @@
 #include "quest_log.h"
 #include "save.h"
 #include "scanline_effect.h"
+#include "strings.h"
 #include "task.h"
 #include "data_8479668.h"
 #include "constants/songs.h"
@@ -1110,5 +1112,310 @@ u16 sub_812951C(void)
 
 void sub_8129560(u8 *arg0)
 {
-    arg0[0] = CHAR_SPACE;
+    arg0[0] = 0;
+}
+
+void sub_8129568(u8 *arg0)
+{
+    arg0[0] = 2;
+    StringCopy(&arg0[1], gSaveBlock2Ptr->playerName);
+    arg0[1 + (PLAYER_NAME_LENGTH + 1)] = gUnknown_203B0E0->unk13;
+}
+
+void sub_8129590(u8 *arg0)
+{
+    arg0[0] = 1;
+    StringCopy(&arg0[1], gSaveBlock2Ptr->playerName);
+    StringCopy(&arg0[1 + (PLAYER_NAME_LENGTH + 1)], gUnknown_203B0E0->unk1A);
+}
+
+void sub_81295C0(u8 *arg0)
+{
+    arg0[0] = 3;
+    StringCopy(&arg0[1], gSaveBlock2Ptr->playerName);
+    arg0[1 + (PLAYER_NAME_LENGTH + 1)] = gUnknown_203B0E0->unk13;
+    sub_80FB9D0();
+}
+
+void sub_81295EC(u8 *arg0)
+{
+    arg0[0] = 4;
+    StringCopy(&arg0[1], gSaveBlock2Ptr->playerName);
+    arg0[1 + (PLAYER_NAME_LENGTH + 1)] = gUnknown_203B0E0->unk13;
+}
+
+void sub_8129614(u8 *arg0)
+{
+    arg0[0] = 5;
+    StringCopy(&arg0[1], gSaveBlock2Ptr->playerName);
+    arg0[1 + (PLAYER_NAME_LENGTH + 1)] = gUnknown_203B0E0->unk13;
+}
+
+bool32 sub_812963C(u8 *arg0, u8 *arg1)
+{
+    u8 *tempStr;
+    u8 var0 = *arg1;
+    u8 *str = arg1 + 1;
+    arg1 = str;
+    arg1 += 8;
+
+    switch (var0)
+    {
+    case 2:
+        if (gUnknown_203B0E0->unk13 != str[8])
+        {
+            DynamicPlaceholderTextUtil_Reset();
+            DynamicPlaceholderTextUtil_SetPlaceholderPtr(0, str);
+            DynamicPlaceholderTextUtil_ExpandPlaceholders(arg0, gText_F700JoinedChat);
+            return TRUE;
+        }
+        break;
+    case 1:
+        tempStr = StringCopy(arg0, str);
+        *(tempStr++) = EXT_CTRL_CODE_BEGIN;
+        *(tempStr++) = EXT_CTRL_CODE_CLEAR_TO;
+        *(tempStr++) = 42;
+        *(tempStr++) = CHAR_COLON;
+        StringCopy(tempStr, arg1);
+        return TRUE;
+    case 5:
+        StringCopy(gUnknown_203B0E0->unk79, str);
+        // fall through
+    case 3:
+        if (gUnknown_203B0E0->unk13 != *arg1)
+        {
+            DynamicPlaceholderTextUtil_Reset();
+            DynamicPlaceholderTextUtil_SetPlaceholderPtr(0, str);
+            DynamicPlaceholderTextUtil_ExpandPlaceholders(arg0, gText_F700LeftChat);
+            return TRUE;
+        }
+        break;
+    }
+
+    return FALSE;
+}
+
+u8 GetCurrentKeyboardPage(void)
+{
+    return gUnknown_203B0E0->currentPage;
+}
+
+void sub_8129700(u8 *arg0, u8 *arg1)
+{
+    *arg0 = gUnknown_203B0E0->unk11;
+    *arg1 = gUnknown_203B0E0->currentRow;
+}
+
+u8 *sub_8129714(void)
+{
+    return gUnknown_203B0E0->unk1A;
+}
+
+int sub_8129720(void)
+{
+    u8 *str = sub_8129714();
+    return StringLength_Multibyte(str);
+}
+
+void sub_8129730(u32 *arg0, u32 *arg1)
+{
+    int diff = gUnknown_203B0E0->unk15 - gUnknown_203B0E0->unk14;
+    if (diff < 0)
+    {
+        diff *= -1;
+        *arg0 = gUnknown_203B0E0->unk15;
+    }
+    else
+    {
+        *arg0 = gUnknown_203B0E0->unk14;
+    }
+
+    *arg1 = diff;
+}
+
+u8 *sub_8129758(void)
+{
+    int i;
+    u16 numChars = sub_812951C();
+    u8 *str = gUnknown_203B0E0->unk1A;
+    for (i = 0; i < numChars; i++)
+    {
+        if (*str == CHAR_EXTRA_EMOJI)
+            str++;
+
+        str++;
+    }
+
+    return str;
+}
+
+u16 sub_8129788(void)
+{
+    u16 count;
+    u32 i;
+    u16 numChars = sub_812951C();
+    u8 *str = gUnknown_203B0E0->unk1A;
+    for (count = 0, i = 0; i < numChars; count++, i++)
+    {
+        if (*str == CHAR_EXTRA_EMOJI)
+            str++;
+
+        str++;
+    }
+
+    return count;
+}
+
+u8 *sub_81297C4(void)
+{
+    return gUnknown_203B0E0->unk39;
+}
+
+u8 sub_81297D0(void)
+{
+    return gUnknown_203B0E0->unk16;
+}
+
+int sub_81297DC(void)
+{
+    return gUnknown_203B0E0->unk15;
+}
+
+int sub_81297E8(void)
+{
+    u8 *str = sub_81294EC();
+    u32 character = *str;
+    if (character > 0xFF || gUnknown_845A8AC[character] == character || gUnknown_845A8AC[character] == 0)
+        return 3;
+    else
+        return 0;
+}
+
+u8 *sub_8129814(void)
+{
+    return gUnknown_203B0E0->unk79;
+}
+
+void copy_strings_to_sav1(void)
+{
+    StringCopy(gSaveBlock1Ptr->unk3AD4[0], gText_Hello);
+    StringCopy(gSaveBlock1Ptr->unk3AD4[1], gText_Pokemon2);
+    StringCopy(gSaveBlock1Ptr->unk3AD4[2], gText_Trade);
+    StringCopy(gSaveBlock1Ptr->unk3AD4[3], gText_Battle);
+    StringCopy(gSaveBlock1Ptr->unk3AD4[4], gText_Lets);
+    StringCopy(gSaveBlock1Ptr->unk3AD4[5], gText_Ok);
+    StringCopy(gSaveBlock1Ptr->unk3AD4[6], gText_Sorry);
+    StringCopy(gSaveBlock1Ptr->unk3AD4[7], gText_YaySmileEmoji);
+    StringCopy(gSaveBlock1Ptr->unk3AD4[8], gText_ThankYou);
+    StringCopy(gSaveBlock1Ptr->unk3AD4[9], gText_ByeBye);
+}
+
+void sub_81298F8(u8 taskId)
+{
+    u8 *buffer;
+    s16 *data = gTasks[taskId].data;
+
+    switch (data[0])
+    {
+    case 0:
+        if (!gReceivedRemoteLinkPlayers)
+        {
+            DestroyTask(taskId);
+            return;
+        }
+
+        data[0] = 1;
+        // fall through
+    case 1:
+        data[4] = GetLinkPlayerCount();
+        if (gUnknown_203B0E0->unkD != data[4])
+        {
+            data[0] = 2;
+            gUnknown_203B0E0->unkD = data[4];
+            return;
+        }
+
+        data[3] = GetBlockReceivedStatus();
+        if (!data[3] && sub_80FBA1C())
+            return;
+
+        data[1] = 0;
+        data[0] = 3;
+        // fall through
+    case 3:
+        for (; data[1] < 5 && ((data[3] >> data[1]) & 1) == 0; data[1]++)
+            ;
+
+        if (data[1] == 5)
+        {
+            data[0] = 1;
+            return;
+        }
+
+        data[2] = data[1];
+        ResetBlockReceivedFlag(data[2]);
+        buffer = (u8 *)gBlockRecvBuffer[data[1]];
+        switch (buffer[0])
+        {
+        default:
+        case 1: data[5] = 3; break;
+        case 2: data[5] = 3; break;
+        case 3: data[5] = 4; break;
+        case 4: data[5] = 5; break;
+        case 5: data[5] = 6; break;
+        }
+
+        if (sub_812963C(gUnknown_203B0E0->unk39, (u8 *)gBlockRecvBuffer[data[1]]))
+        {
+            gUnknown_203B0E0->unk16 = data[1];
+            sub_8129C34(12, 2);
+            data[0] = 7;
+        }
+        else
+        {
+            data[0] = data[5];
+        }
+
+        data[1]++;
+        break;
+    case 7:
+        if (!sub_8129C8C(2))
+            data[0] = data[5];
+        break;
+    case 4:
+        if (!gUnknown_203B0E0->unk13 && data[2])
+        {
+            if (GetLinkPlayerCount() == 2)
+            {
+                sub_80FA4A8();
+                gUnknown_203B0E0->unk17 = 1;
+                DestroyTask(taskId);
+                return;
+            }
+
+            sub_80FBD6C(data[2]);
+        }
+
+        data[0] = 3;
+        break;
+    case 5:
+        if (gUnknown_203B0E0->unk13)
+            gUnknown_203B0E0->unk17 = 2;
+
+        DestroyTask(taskId);
+        break;
+    case 6:
+        gUnknown_203B0E0->unk17 = 3;
+        DestroyTask(taskId);
+        break;
+    case 2:
+        if (!sub_80FBA1C())
+        {
+            if (!gUnknown_203B0E0->unk13)
+                sub_80FB030(gUnknown_203B0E0->unkD);
+
+            data[0] = 1;
+        }
+        break;
+    }
 }