pokecrystal-board/home/delay.asm
2015-06-23 12:24:51 -06:00

23 lines
345 B
NASM

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