Update some routine labels, including unreferenced ones

home/gfx.asm

@@ -1,6 +1,6 @@
 ; Functions to copy data from ROM.
 
-Get2bpp_2::
+Get2bppViaHDMA::
 	ldh a, [rLCDC]
 	bit rLCDC_ENABLE, a
 	jp z, Copy2bpp
@@ -9,7 +9,7 @@ Get2bpp_2::
 
 	ret
 
-Get1bpp_2::
+Get1bppViaHDMA::
 	ldh a, [rLCDC]
 	bit rLCDC_ENABLE, a
 	jp z, Copy1bpp
@@ -31,7 +31,7 @@ FarCopyBytesDouble_DoubleBankSwitch::
 	rst Bankswitch
 	ret
 
-OldDMATransfer:
+UnreferencedOldDMATransfer:
 	dec c
 	ldh a, [hBGMapMode]
 	push af

home/map_objects.asm

@@ -574,12 +574,12 @@ _GetMovementByte::
 	ld a, h
 	ret
 
-SetVramState_Bit0::
+UnreferencedSetVramState_Bit0::
 	ld hl, wVramState
 	set 0, [hl]
 	ret
 
-ResetVramState_Bit0::
+UnreferencedResetVramState_Bit0::
 	ld hl, wVramState
 	res 0, [hl]
 	ret

home/math.asm

@@ -48,8 +48,8 @@ Divide::
 	pop hl
 	ret
 
-SubtractSigned::
-; Return a - b, sign in carry.
+UnreferencedSubtractAbsolute::
+; Return |a - b|, sign in carry.
 	sub b
 	ret nc
 	cpl

home/menu.asm

@@ -417,7 +417,7 @@ YesNoBox::
 PlaceYesNoBox::
 	jr _YesNoBox
 
-PlaceGenericTwoOptionBox::
+UnreferencedPlaceGenericTwoOptionBox::
 	call LoadMenuHeader
 	jr InterpretTwoOptionMenu
 

home/text.asm

@@ -128,7 +128,7 @@ SpeechTextbox::
 	ld c, TEXTBOX_INNERW
 	jp Textbox
 
-TestText::
+UnreferencedTestText::
 	text "ゲームフりーク！"
 	done
 

home/time.asm

@@ -256,7 +256,7 @@ SetClock::
 	call CloseSRAM ; unlatch clock, disable clock r/w
 	ret
 
-ClearRTCStatus::
+UnreferencedClearRTCStatus::
 ; clear sRTCStatusFlags
 	xor a
 	push af

home/trainers.asm

@@ -203,7 +203,7 @@ FacingPlayerDistance::
 	and a
 	ret
 
-CheckTrainerFlag::
+UnreferencedCheckTrainerFlag::
 	push bc
 	ld hl, OBJECT_MAP_OBJECT_INDEX
 	add hl, bc