TRS-80 Programming Question

[DoctorPepper]

I have finally gone over the edge, and have decided I want to learn Z80/8080 Assembly Language programming, mainly for use on my TRS-80 Model IV/4P units running TRSDOS 6.2.

I am not a complete Assembly Language novice, I used to work in 8086 Assembly Language under MS-DOS many years ago. My question to the forum is: Does anyone know of a good turorial (preferably on-line) on Assembly Language programming for TRSDOS, and which assembler is the most recommended?

I'm sure there are other questions I'll have, namely things concerning linkers and the like.

As always, any and all help will be greatly appreciated.

(BTW, there's lots of good stuff on Ira's site (http://www.trs-80.com))

[kb2syd]

There are several books on Ira's site on this topic. Look under assembly language on http://www.trs-80.com/trs80-bk.htm

Anything published after 1980 would probably cover the model III
Anything published after 1983 would probably cover the model 4
For LS-DOS, the source code is available at: http://nemesis.lonestar.org/computers/tandy/software/os/logical_systems/lsdos6/src631/
and
the programmer's guide to LDOS/TRS-DOS version 6 is at:
http://www.tim-mann.org/trs80/doc/Guide.txt
(http://www.tim-mann.org/trs80/doc/prgguide.pdf) for the PDF version, or you can download it formatted for Scripsit (wheeeee!).

Did you find any other resources?

[DoctorPepper]

Thanks for the info. I've been downloading PDF books from Ira's site since yesterday afternoon. I also just won an eBay auction for a Z-80/8080 Assembly Language programming book, and will be looking for a few more.

I think I actually downloaded the LDOS/TRSDOS programmer's guide from Tim Mann's site a few weeks ago (I don't know why, I wasn't planning on this back then!), and now will check it out.

My main need is for a decent assembler. I was looking on Ira's site, under "assembler, model IV", and came up with a couple of possibilities. The one I'm leaning towards is the EDAS Editor/Assembler from Misosys. Does anyone know anything about EDAS?

[kb2syd]

For a modest fee, Ira will send a collection of DVDs with many of the scanned books. That's what I did.

EDAS looks like the way to go. Is the manual available online? If not, I can check and see if it is in my collection of TRS-80 manuals.

[DoctorPepper]

For a modest fee, Ira will send a collection of DVDs with many of the scanned books. That's what I did.

EDAS looks like the way to go. Is the manual available online? If not, I can check and see if it is in my collection of TRS-80 manuals.

Yes, if you do a search on "assembler" and "model IV", you will see EDAS. On the right side of the grid is a little book icon, which looks to be the manual.

[kb2syd]

Their are manuals on tim-mann.org for EDASM too.