64 Column Mode Software for the Timex Sinclair 2068

How would you like to be able to place on the screen 24 rows of 64 characters in your own programs? Or how about plotting in an ultra-high resolution mode of 192 vertical pixels by 512 horizontal pixels? Sound enticing? Then read on…

Basically speaking, I have developed several small machine code routines which handle the available 64 column mode on the Timex Sinclair 2068. There are 5 routines which are labeled: INITIALIZE, PRINT, CLS, PLOT, and UNPLOT. In this article I will present the actual machine code along with how to use it in your own BASIC programs. The process of controlling the display is really easy, as you will soon see.