Identify some more unnamed labels

10 files changed, 47 insertions, 36 deletions

diff --git a/engine/gfx/color.asm b/engine/gfx/color.asm
index c6ce55aa..d03724f8 100644
--- a/engine/gfx/color.asm
+++ b/engine/gfx/color.asm
@@ -669,7 +669,7 @@ CGBCopyBattleObjectPals: ; unreferenced
 BattleObjectPals:
 INCLUDE "gfx/battle_anims/battle_anims.pal"
 
-Function9c39: ; unreferenced
+CGBCopyTwoPredefObjectPals: ; unreferenced
 	call CheckCGB
 	ret z
 	ld a, (1 << rOBPI_AUTO_INCREMENT) | $10
diff --git a/engine/items/tmhm.asm b/engine/items/tmhm.asm
index bc6f94c6..e7c622d7 100644
--- a/engine/items/tmhm.asm
+++ b/engine/items/tmhm.asm
@@ -435,7 +435,8 @@ TMHMPocket_GetCurrentLineCoord:
 	jr nz, .loop
 	ret
 
-Function2c89a: ; unreferenced
+PlaceMoveNameAfterTMHMName: ; unreferenced
+; Similar to a part of TMHM_DisplayPocketItems.
 	pop hl
 	ld bc, 3
 	add hl, bc
diff --git a/engine/overworld/load_map_part.asm b/engine/overworld/load_map_part.asm
index 32dc1226..4e8e228b 100644
--- a/engine/overworld/load_map_part.asm
+++ b/engine/overworld/load_map_part.asm
@@ -35,7 +35,8 @@ _LoadMapPart::
 	jr nz, .loop
 	ret
 
-Function153ba: ; unreferenced
+ForceApplyFlashlight1: ; unreferenced
+; See pokegold-spaceworld's ApplyFlashlight.force_1 in home/map.asm.
 	decoord 2, 2
 	ld bc, (SURROUNDING_WIDTH + 1) * 2
 	add hl, bc
@@ -66,7 +67,8 @@ Function153ba: ; unreferenced
 	jr nz, .loop
 	ret
 
-Function153dd: ; unreferenced
+ForceApplyFlashlight2: ; unreferenced
+; See pokegold-spaceworld's ApplyFlashlight.force_2 in home/map.asm.
 	decoord 4, 4
 	ld bc, (SURROUNDING_WIDTH + 1) * 4
 	add hl, bc
@@ -97,7 +99,8 @@ Function153dd: ; unreferenced
 	jr nz, .loop
 	ret
 
-Ureferenced_Function15400:
+ForceApplyFlashlight3: ; unreferenced
+; See pokegold-spaceworld's ApplyFlashlight.force_3 in home/map.asm.
 	decoord 6, 6
 	ld bc, (SURROUNDING_WIDTH + 1) * 6
 	add hl, bc
@@ -128,7 +131,8 @@ Ureferenced_Function15400:
 	jr nz, .loop
 	ret
 
-Function15423: ; unreferenced
+ForceApplyFlashlight4: ; unreferenced
+; See pokegold-spaceworld's ApplyFlashlight.force_4 in home/map.asm.
 	decoord 8, 8
 	ld bc, (SURROUNDING_WIDTH + 1) * 8
 	add hl, bc
diff --git a/engine/overworld/npc_movement.asm b/engine/overworld/npc_movement.asm
index bcc47a20..1fb8e63a 100644
--- a/engine/overworld/npc_movement.asm
+++ b/engine/overworld/npc_movement.asm
@@ -274,14 +274,14 @@ WillObjectBumpIntoSomeoneElse:
 	ld e, [hl]
 	jr IsNPCAtCoord
 
-Function70f4: ; unreferenced
+IsObjectFacingSomeoneElse: ; unreferenced
 	ldh a, [hMapObjectIndexBuffer]
 	call GetObjectStruct
-	call .CheckWillBeFacingNPC
+	call .GetFacingCoords
 	call IsNPCAtCoord
 	ret
 
-.CheckWillBeFacingNPC:
+.GetFacingCoords:
 	ld hl, OBJECT_NEXT_MAP_X
 	add hl, bc
 	ld d, [hl]
@@ -289,12 +289,13 @@ Function70f4: ; unreferenced
 	add hl, bc
 	ld e, [hl]
 	call GetSpriteDirection
-	and a
+	and a ; OW_DOWN?
 	jr z, .down
 	cp OW_UP
 	jr z, .up
 	cp OW_LEFT
 	jr z, .left
+	; OW_RIGHT
 	inc d
 	ret
 
@@ -326,32 +327,31 @@ IsNPCAtCoord:
 	ld hl, OBJECT_PALETTE
 	add hl, bc
 	bit BIG_OBJECT_F, [hl]
-	jr z, .got
-
+	jr z, .not_big
 	call WillObjectIntersectBigObject
-	jr nc, .ok
-	jr .ok2
+	jr nc, .check_current_coords
+	jr .continue
 
-.got
+.not_big
 	ld hl, OBJECT_NEXT_MAP_X
 	add hl, bc
 	ld a, [hl]
 	cp d
-	jr nz, .ok
+	jr nz, .check_current_coords
 	ld hl, OBJECT_NEXT_MAP_Y
 	add hl, bc
 	ld a, [hl]
 	cp e
-	jr nz, .ok
+	jr nz, .check_current_coords
 
-.ok2
+.continue
 	ldh a, [hMapObjectIndexBuffer]
 	ld l, a
 	ldh a, [hObjectStructIndexBuffer]
 	cp l
-	jr nz, .setcarry
+	jr nz, .yes
 
-.ok
+.check_current_coords
 	ld hl, OBJECT_MAP_X
 	add hl, bc
 	ld a, [hl]
@@ -366,7 +366,7 @@ IsNPCAtCoord:
 	ld l, a
 	ldh a, [hObjectStructIndexBuffer]
 	cp l
-	jr nz, .setcarry
+	jr nz, .yes
 
 .next
 	ld hl, OBJECT_LENGTH
@@ -380,7 +380,7 @@ IsNPCAtCoord:
 	and a
 	ret
 
-.setcarry
+.yes
 	scf
 	ret
 
@@ -473,7 +473,7 @@ IsObjectMovingOffEdgeOfScreen:
 	scf
 	ret
 
-Function71f2: ; unreferenced
+IsNPCAtPlayerCoord: ; unreferenced
 	ld a, [wPlayerStandingMapX]
 	ld d, a
 	ld a, [wPlayerStandingMapY]
@@ -484,16 +484,17 @@ Function71f2: ; unreferenced
 	ldh [hObjectStructIndexBuffer], a
 	call DoesObjectHaveASprite
 	jr z, .next
+
 	ld hl, OBJECT_MOVEMENTTYPE
 	add hl, bc
 	ld a, [hl]
 	cp SPRITEMOVEDATA_BIGDOLLSYM
-	jr nz, .not_snorlax
+	jr nz, .not_big
 	call WillObjectIntersectBigObject
 	jr c, .yes
 	jr .next
 
-.not_snorlax
+.not_big
 	ld hl, OBJECT_NEXT_MAP_Y
 	add hl, bc
 	ld a, [hl]
diff --git a/engine/overworld/overworld.asm b/engine/overworld/overworld.asm
index 43465f73..0d285d2a 100644
--- a/engine/overworld/overworld.asm
+++ b/engine/overworld/overworld.asm
@@ -433,21 +433,22 @@ endr
 .done:
 	ret
 
-Function1438a: ; unreferenced
+GetUsedSpriteTileB: ; unreferenced
 	ld a, c
 	jr GetUsedSprite
 
-Function1438d: ; unreferenced
+GetUsedSpriteFirst: ; unreferenced
 	ld a, c
-	ld b, 0
+	ld b, $00
 	jr GetUsedSprite
 
-Function14392: ; unreferenced
+GetUsedSpriteSecond: ; unreferenced
 	ld a, c
-	ld b, SPRITE_GFX_LIST_CAPACITY
+	ld b, $0c
 	jr GetUsedSprite
 
 GetUsedSprite:
+; Input: b = tile id, c = index
 	push bc
 	ld a, c
 	ldh [hUsedSpriteIndex], a
diff --git a/engine/pokemon/bills_pc_top.asm b/engine/pokemon/bills_pc_top.asm
index 3428d038..e4d82e41 100644
--- a/engine/pokemon/bills_pc_top.asm
+++ b/engine/pokemon/bills_pc_top.asm
@@ -139,7 +139,7 @@ BillsPC_DepositMenu:
 	and a
 	ret
 
-Functione4ed: ; unreferenced
+BillsPC_Deposit_CheckPartySize: ; unreferenced
 	ld a, [wPartyCount]
 	and a
 	jr z, .no_mon
@@ -206,7 +206,7 @@ BillsPC_WithdrawMenu:
 	and a
 	ret
 
-Functione548: ; unreferenced
+BillsPC_Withdraw_CheckPartySize: ; unreferenced
 	ld a, [wPartyCount]
 	cp PARTY_LENGTH
 	jr nc, .party_full
diff --git a/engine/pokemon/mail_2.asm b/engine/pokemon/mail_2.asm
index 0ddf8242..c728b533 100644
--- a/engine/pokemon/mail_2.asm
+++ b/engine/pokemon/mail_2.asm
@@ -690,7 +690,8 @@ MailGFX_PlaceMessage:
 .place_author
 	jp PlaceString
 
-Functionbb4c5: ; unreferenced
+InvertBytes: ; unreferenced
+; invert bc bytes starting at hl
 .loop
 	ld a, [hl]
 	xor $ff
diff --git a/engine/printer/printer.asm b/engine/printer/printer.asm
index 648b0168..a6e0f956 100644
--- a/engine/printer/printer.asm
+++ b/engine/printer/printer.asm
@@ -571,7 +571,9 @@ PlacePrinterStatusString:
 	ld [wPrinterStatus], a
 	ret
 
-Function847b9: ; unreferenced
+PlacePrinterStatusStringBorderless: ; unreferenced
+; Similar to PlacePrinterStatusString, but with different hlcoords
+; and ClearBox instead of TextBox.
 	ld a, [wPrinterStatus]
 	and a
 	ret z
diff --git a/engine/rtc/print_hours_mins.asm b/engine/rtc/print_hours_mins.asm
index 149e8cb1..83d23736 100644
--- a/engine/rtc/print_hours_mins.asm
+++ b/engine/rtc/print_hours_mins.asm
@@ -1,9 +1,10 @@
 Function1c0a0d: ; unreferenced
 ; Debug function?
+; Input: bc = value, de = destination
 	ld a, b
 	ld b, c
 	ld c, a
-	push bc
+	push bc ; de points to this on the stack for PrintNum
 	push de
 	ld hl, sp+2
 	ld d, h
diff --git a/engine/rtc/timeset.asm b/engine/rtc/timeset.asm
index 4cdfc41b..bcf58bad 100644
--- a/engine/rtc/timeset.asm
+++ b/engine/rtc/timeset.asm
@@ -193,7 +193,7 @@ DisplayHourOClock:
 	pop hl
 	ret
 
-Function907ba: ; unreferenced
+DisplayHoursMinutesWithMinString: ; unreferenced
 	ld h, d
 	ld l, e
 	push hl