shithub: pokecrystal

ref: 2137f0be09d8ad5ff2d995725dee273b55dbcc04
dir: /home/delay.asm/

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

; Wait for the next VBlank, halting to conserve battery
.halt
	halt
	nop
	ld a, [wVBlankOccurred]
	and a
	jr nz, .halt
	ret

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