4 ms·
The Atari 2600 doesn't use IRQs or NMIs. You have to sync with the frame by setting a timer, making sure your code doesn't run over it, and spinlocking on it u
by tenebrisalietum 5y ago
The Atari 2600 doesn't use IRQs or NMIs. You have to sync with the frame by setting a timer, making sure your code doesn't run over it, and spinlocking on it until it expires.
However, the CPU can tell the video chip to make the CPU halt until the beginning of the next scanline though.
That's the only platform I know of that's anything like interruptless.