Negative Space: Highway 10

It is our intention that this book provide the reader with more than a listing of program lines. We hope that it will be a teaching aid that will enable you to write better programs of your own. A wide range of programming styles and techniques are present, and some are better than others—try and find out as much as possible about program structure from these examples. We have loaded and run every program but have made no attempt to alter style—we leave that to you. Change lines, clean up subroutines, reduce lengths where possible, get rid of GOTO statements if you can—experiment! — Jim Perry and Chris Brown (80 Programs for the TRS-80)