Resolve some "???" comments

engine/battle/core.asm

@@ -2366,18 +2366,20 @@ WinTrainerBattle:
 	call BattleWinSlideInEnemyTrainerFrontpic
 	ld c, 40
 	call DelayFrames
+
 	ld a, [wBattleType]
 	cp BATTLETYPE_CANLOSE
 	jr nz, .skip_heal
 	predef HealParty
 .skip_heal
+
 	ld a, [wDebugFlags]
 	bit DEBUG_BATTLE_F, a
 	jr nz, .skip_win_loss_text
 	call PrintWinLossText
-
 .skip_win_loss_text
-	jp .GiveMoney
+
+	jp .give_money
 
 .mobile
 	call BattleWinSlideInEnemyTrainerFrontpic
@@ -2405,7 +2407,7 @@ WinTrainerBattle:
 	call ClearBGPalettes
 	ret
 
-.GiveMoney:
+.give_money
 	ld a, [wAmuletCoin]
 	and a
 	call nz, .DoubleReward
@@ -2678,7 +2680,8 @@ UpdateFaintedPlayerMon:
 	ld a, [wWhichMonFaintedFirst]
 	and a
 	ret z
-	ret ; ??????????
+	; code was probably dummied out here
+	ret
 
 AskUseNextPokemon:
 	call EmptyBattleTextbox
@@ -3160,7 +3163,8 @@ EnemySwitch_SetMode:
 	jp ShowSetEnemyMonAndSendOutAnimation
 
 CheckWhetherSwitchmonIsPredetermined:
-; returns carry if: ???
+; returns the enemy switchmon index in b, or
+; returns carry if the index is not yet determined.
 	ld a, [wLinkMode]
 	and a
 	jr z, .not_linked
@@ -3182,7 +3186,7 @@ CheckWhetherSwitchmonIsPredetermined:
 .check_wBattleHasJustStarted
 	ld a, [wBattleHasJustStarted]
 	and a
-	ld b, $0
+	ld b, 0
 	jr nz, .return_carry
 
 	and a

engine/battle/move_effects/spite.asm

@@ -4,7 +4,7 @@ BattleCommand_Spite:
 	ld a, [wAttackMissed]
 	and a
 	jp nz, .failed
-	ld bc, PARTYMON_STRUCT_LENGTH ; ????
+	ld bc, PARTYMON_STRUCT_LENGTH ; unused
 	ld hl, wEnemyMonMoves
 	ldh a, [hBattleTurn]
 	and a