Yes. It's possible to do on the Acorn but few games at the time took the trouble to do so. It requires very accurate cycle counting. There have been a number of

Yes. It's possible to do on the Acorn but few games at the time took the trouble to do so. It requires very accurate cycle counting. There have been a number of recent demos that take things to the next level though, and someone has even got raster interrupts working on the Electron, which is frankly astonishing: https://www.youtube.com/watch?v=PUl1SGUSkbI https://www.youtube.com/watch?v=PUl1SGUSkbI