The TRS-80 graphics book. (book reviews) Russ Lockwood.
This excellent tutorial on TRS-80 Model I, III, and 4 graphics provides a veritable goldmine of Basic and assembly language programming techniques.
Dennis F. Tanner, Director of Educational Product Development for Tandy, starts by creating graphics with SET/RESET/POINT programming, moves into using PRINT as a graphics instruction, and then examines POKE graphics and video memory. He covers compressed graphics using variable pointer instructions, program debugging under TRSDOS, and screen dumps to a printer. Additional chapters introduce assembly language graphics programming and discuss assembly language file handling.
The book includes dozens of short programs and numerous utilities to help programmers understand graphics concepts and programming logic.
By today's standards, TRS-80 Model I, III, and 4 graphics are somewhat crude, but this book can help TRS-80 owners wring the best possible graphics from their computers.
Review Grade: A