LSCROLL – For Spectacular Screen Displays

How would you like to be able to create a “Times Square” display which moves from right to left without upsetting other items on your ZX81 (or 8K ROM ZX80) screen? Would you like to display graphs or functions such as a sine wave on your screen when they need more than 32 columns of display? Or what about moving animated characters or graphs across the screen with great speed? You can easily do these and more with LSCROLL, a lateral, or horizontal, scrolling routine for your computer.