shithub: pokecrystal

ref: 0a1b6b4f15da58f47b7a6fcf3b650b8e5c3a7b53
dir: /home/delay.asm/

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DelayFrame::
; Wait for one frame
	ld a, 1
	ld [wVBlankOccurred], a

; Wait for the next VBlank, halting to conserve battery
.halt
	halt ; rgbasm adds a nop after this instruction by default
	ld a, [wVBlankOccurred]
	and a
	jr nz, .halt
	ret

DelayFrames::
; Wait c frames
	call DelayFrame
	dec c
	jr nz, DelayFrames
	ret