pokecrystal-board/engine/delay.asm

24 lines
344 B
NASM
Raw Normal View History

2013-09-03 14:36:55 -07:00
DelayFrame: ; 45a
; Wait for one frame
ld a, 1
ld [VBlankOccurred], a
; Wait for the next VBlank, halting to conserve battery
.halt
halt ; rgbasm adds a nop after this instruction by default
ld a, [VBlankOccurred]
and a
jr nz, .halt
ret
; 468
DelayFrames: ; 468
; Wait c frames
call DelayFrame
dec c
jr nz, DelayFrames
ret
; 46f