shithub: pokered

ref: b509b48a7f5a9a80225b9c030d7334b26b521c62
dir: /engine/battle/unused_stats_functions.asm/

; does nothing since no stats are ever selected (barring glitches)
DoubleSelectedStats: ; 39680 (e:5680)
	ld a, [H_WHOSETURN]
	and a
	ld a, [wPlayerStatsToDouble]
	ld hl, wBattleMonAttack + 1
	jr z, .notEnemyTurn
	ld a, [wEnemyStatsToDouble]
	ld hl, wEnemyMonAttack + 1
.notEnemyTurn
	ld c, 4
	ld b, a
.loop
	srl b
	call c, .doubleStat
	inc hl
	inc hl
	dec c
	ret z
	jr .loop

.doubleStat
	ld a, [hl]
	add a
	ld [hld], a
	ld a, [hl]
	rl a
	ld [hli], a
	ret

; does nothing since no stats are ever selected (barring glitches)
HalveSelectedStats: ; 396a7 (e:56a7)
	ld a, [H_WHOSETURN]
	and a
	ld a, [wPlayerStatsToHalve]
	ld hl, wBattleMonAttack
	jr z, .notEnemyTurn
	ld a, [wEnemyStatsToHalve]
	ld hl, wEnemyMonAttack
.notEnemyTurn
	ld c, 4
	ld b, a
.loop
	srl b
	call c, .halveStat
	inc hl
	inc hl
	dec c
	ret z
	jr .loop

.halveStat
	ld a, [hl]
	srl a
	ld [hli], a
	rr [hl]
	or [hl]
	jr nz, .nonzeroStat
	ld [hl], 1
.nonzeroStat
	dec hl
	ret