The disk image The article from December 1984 BYTE, RAR compressed PDF
The article was provided by Paul Santa-Maria (on planet earth from June 8, 1962 - June 19th, 2010, RIP) I've proofread this countless times. listing1 creates hires lookup table listing2 creates shift tables listing3 is assembly language code listing4 is divide by 7 tables listing5 puts all of the tables together listing6 is a demo to demonstrate the code I finally got it to work. make sure capslock is on, and use: -I- JKL to move the arrow around. press space bar to stop the arrow. Read the above PDF, it is a very interesting method to shift things around on the screen. The shape isn't preshifted, but there is a shift table that will shift ANY byte.