TRSDOS Commented
| Title | TRSDOS Commented |
|---|---|
| Publisher | Soft Sector Marketing |
| Publication Date | 1982 |
| Pages | 256 |
TRSDOS Commented was among a rare set of books that detailed the TRSDOS for the TRS-80 Model III. Published by Soft Sector Marketing with decoding by Rick Papo, it offered an extensive disassembly and commentary on the Model III TRSDOS, excluding Disk BASIC.
The book includes five main parts:
- Useful undocumented TR routines
- Descriptions of TRSDOS internal structures
- Three patches for disk drive behavior
- Complete disassembly of TRSDOS code
- Data sheets for the Western Digital disk controller
Notably, the book displays disassembled code without the raw machine code bytes and attempts to clarify self-modifying code by showing the effective instruction rather than static source machine code.
Soft Sector Marketing notes that the book is an educational effort and contains no intent to infringe on Tandy's copyrights.
The book's style helps programmers better understand TRSDOS at the assembler level and provides practical guidance on system internals.
TRSDOS Commented was printed once in April 1982, with later unavailability due to the publisher's closure, making it a sought-after and rare resource.
Categories: Books