Specify the ldh instruction, don't turn ld into ldh

engine/menus/start_sub_menus.asm

@@ -50,7 +50,7 @@ StartMenu_Pokemon::
 	ld hl, wTopMenuItemY
 	ld a, c
 	ld [hli], a ; top menu item Y
-	ld a, [hFieldMoveMonMenuTopMenuItemX]
+	ldh a, [hFieldMoveMonMenuTopMenuItemX]
 	ld [hli], a ; top menu item X
 	xor a
 	ld [hli], a ; current menu item ID
@@ -239,21 +239,21 @@ StartMenu_Pokemon::
 	ld bc, wPartyMon2 - wPartyMon1
 	call AddNTimes
 	ld a, [hli]
-	ld [hDividend], a
+	ldh [hDividend], a
 	ld a, [hl]
-	ld [hDividend + 1], a
+	ldh [hDividend + 1], a
 	ld a, 5
-	ld [hDivisor], a
+	ldh [hDivisor], a
 	ld b, 2 ; number of bytes
 	call Divide
 	ld bc, wPartyMon1HP - wPartyMon1MaxHP
 	add hl, bc
 	ld a, [hld]
 	ld b, a
-	ld a, [hQuotient + 3]
+	ldh a, [hQuotient + 3]
 	sub b
 	ld b, [hl]
-	ld a, [hQuotient + 2]
+	ldh a, [hQuotient + 2]
 	sbc b
 	jp nc, .notHealthyEnough
 	ld a, [wPartyAndBillsPCSavedMenuItem]
@@ -454,10 +454,10 @@ StartMenu_TrainerInfo::
 	call GBPalWhiteOut
 	call ClearScreen
 	call UpdateSprites
-	ld a, [hTilesetType]
+	ldh a, [hTilesetType]
 	push af
 	xor a
-	ld [hTilesetType], a
+	ldh [hTilesetType], a
 	call DrawTrainerInfo
 	predef DrawBadges ; draw badges
 	ld b, SET_PAL_TRAINER_CARD
@@ -471,7 +471,7 @@ StartMenu_TrainerInfo::
 	call ReloadMapData
 	call LoadGBPal
 	pop af
-	ld [hTilesetType], a
+	ldh [hTilesetType], a
 	jp RedisplayStartMenu
 
 ; loads tile patterns and draws everything except for gym leader faces / badges
@@ -648,7 +648,7 @@ StartMenu_SaveReset::
 
 StartMenu_Option::
 	xor a
-	ld [hAutoBGTransferEnabled], a
+	ldh [hAutoBGTransferEnabled], a
 	call ClearScreen
 	call UpdateSprites
 	callab DisplayOptionMenu
@@ -737,10 +737,10 @@ SwitchPartyMon_InitVarOrSwapData:
 	inc d
 .noCarry2
 	ld a, [hl]
-	ld [hSwapTemp], a
+	ldh [hSwapTemp], a
 	ld a, [de]
 	ld [hl], a
-	ld a, [hSwapTemp]
+	ldh a, [hSwapTemp]
 	ld [de], a
 	ld hl, wPartyMons
 	ld bc, wPartyMon2 - wPartyMon1