Tips and Tricks (Main Menu)

This section of the web site covers tips and tricks, ranging from Level II through determining the geometry of a hard drive.

There is no rhyme or reason to why tips are or are not present; as I learn of them, they go here.

Unfortunately, there is some mixing and matching between the pages, and I hope to fix those at some point.

Hard Drive Tips and Tricks

Page includes How to Quickly Initialize, Determining Hard Drive Geometry, Using a Single Hard Drive with 2 Operating Systems, Initializing under Model 4 DOSs, Changing Minimum Cluster Size, Booting a Model 4P from a Hard Drive, and Changing TRSDOS 6.2.1 to Boot a Model 4P from a Hard Drive

String Packing and USR Routines

Page includes General Framework and Explanation, Graphic String Packing, Maching Language String Packing, and Multiple USR() Calls

Level II Tips and Tricks

Page includes and insane amount of information ... just visit the page to see what's what

NEWDOS/80 Tips and Tricks

Page includes Booting NEWDOS/80 v2.0 on a Model 4P, NEWDOS/80 v2.0 Other-DOS PDRIVE Settings, Setting HIMEM from NEWDOS/80 v2.0 BASIC, Make a /CMD File into a Model III Self-Booting Disk using NEWDOS/80, Trading Files Between LDOS6.2 and NEWDOS/80 v2, and Setting Tandy 15MB Drive to Run with NEWDOS80 v2.5

Other DOS Tips and Tricks

Page includes and insane amount of information ... just visit the page to see what's what

TRS-80 Graphics

Page includes General Overview, Character Sets (Regular, Japanese, and Dingbats), Graphic Worksheet, and Graphic Characters

Tape and File Formats/Structures

Page includes Tape Structures (Level I Tape Format, Level II BASIC File Tape Format, System Tape Format, Editor/Assembler Source Tape Format) and File Structures (CMD File Format, Editor/Assembler Source File Format, SuperSCRIPSIT Document Files, DSK/JV1/JV3 File Structure, DMK File Structure)

Bugs and Easter Eggs

Page includes a information on easter eggs, and bugs, buried in programs and ROMs.

Misc Tips and Tricks

Page includes a few articles on Tokenized BASIC, Vidtex Escape Sequences, More Pokes and Peeks, and a Disk Speed-Up Chart

Model III Tips and Tricks

Page includes Model III Poke and Passing and Getting Values from a USR Call

Model 4 Tips and Tricks

Determining GA or NGA Model, Model 4 POKEs, Model 4 PEEKs, Model 4 Keyboard PEEK Table, Directly Access Model 4 Video, Model 4 Graphics Board / Undocumented Ports, Model 4 Video Locations, Programming the Model 4 Function Keys, Changing the Model 4 Speed, Controlling the Model 4 Sound Card, and Model 4 BASIC Commands

Model 4P Tips and Tricks

Page includes Model 4P Bootup Options (Keypresses At Reset/Power On) and Model 4P Modem Commands