Gameboy Advance V-Blank and H-Blank cycles written by Matt D. I have calculated that H-Blank takes 272 cycles and V-Blank takes 83799 cycles. Its based on these stats: * CPU is 16.78 MHz * H-Blank takes 16.212 us * V-Blank takes 4.994 us Given that the thumb and ARM instruction sets are RISC instructions, those cycles should translate into instructions.