Forum Rules and Etiquette

Our mission ...

This forum is part of our mission to promote the preservation of vintage computers through education and outreach. (In real life we also run events and have a museum.) We encourage you to join us, participate, share your knowledge, and enjoy.

This forum has been around in this format for over 15 years. These rules and guidelines help us maintain a healthy and active community, and we moderate the forum to keep things on track. Please familiarize yourself with these rules and guidelines.

Rule 1: Remain civil and respectful

There are several hundred people who actively participate here. People come from all different backgrounds and will have different ways of seeing things. You will not agree with everything you read here. Back-and-forth discussions are fine but do not cross the line into rude or disrespectful behavior.

Conduct yourself as you would at any other place where people come together in person to discuss their hobby. If you wouldn't say something to somebody in person, then you probably should not be writing it here.

This should be obvious but, just in case: profanity, threats, slurs against any group (sexual, racial, gender, etc.) will not be tolerated.

Rule 2: Stay close to the original topic being discussed
  • If you are starting a new thread choose a reasonable sub-forum to start your thread. (If you choose incorrectly don't worry, we can fix that.)
  • If you are responding to a thread, stay on topic - the original poster was trying to achieve something. You can always start a new thread instead of potentially "hijacking" an existing thread.

Rule 3: Contribute something meaningful

To put things in engineering terms, we value a high signal to noise ratio. Coming here should not be a waste of time.
  • This is not a chat room. If you are taking less than 30 seconds to make a post then you are probably doing something wrong. A post should be on topic, clear, and contribute something meaningful to the discussion. If people read your posts and feel that their time as been wasted, they will stop reading your posts. Worse yet, they will stop visiting and we'll lose their experience and contributions.
  • Do not bump threads.
  • Do not "necro-post" unless you are following up to a specific person on a specific thread. And even then, that person may have moved on. Just start a new thread for your related topic.
  • Use the Private Message system for posts that are targeted at a specific person.

Rule 4: "PM Sent!" messages (or, how to use the Private Message system)

This forum has a private message feature that we want people to use for messages that are not of general interest to other members.

In short, if you are going to reply to a thread and that reply is targeted to a specific individual and not of interest to anybody else (either now or in the future) then send a private message instead.

Here are some obvious examples of when you should not reply to a thread and use the PM system instead:
  • "PM Sent!": Do not tell the rest of us that you sent a PM ... the forum software will tell the other person that they have a PM waiting.
  • "How much is shipping to ....": This is a very specific and directed question that is not of interest to anybody else.

Why do we have this policy? Sending a "PM Sent!" type message basically wastes everybody else's time by making them having to scroll past a post in a thread that looks to be updated, when the update is not meaningful. And the person you are sending the PM to will be notified by the forum software that they have a message waiting for them. Look up at the top near the right edge where it says 'Notifications' ... if you have a PM waiting, it will tell you there.

Rule 5: Copyright and other legal issues

We are here to discuss vintage computing, so discussing software, books, and other intellectual property that is on-topic is fine. We don't want people using these forums to discuss or enable copyright violations or other things that are against the law; whether you agree with the law or not is irrelevant. Do not use our resources for something that is legally or morally questionable.

Our discussions here generally fall under "fair use." Telling people how to pirate a software title is an example of something that is not allowable here.

Reporting problematic posts

If you see spam, a wildly off-topic post, or something abusive or illegal please report the thread by clicking on the "Report Post" icon. (It looks like an exclamation point in a triangle and it is available under every post.) This send a notification to all of the moderators, so somebody will see it and deal with it.

If you are unsure you may consider sending a private message to a moderator instead.

New user moderation

New users are directly moderated so that we can weed spammers out early. This means that for your first 10 posts you will have some delay before they are seen. We understand this can be disruptive to the flow of conversation and we try to keep up with our new user moderation duties to avoid undue inconvenience. Please do not make duplicate posts, extra posts to bump your post count, or ask the moderators to expedite this process; 10 moderated posts will go by quickly.

New users also have a smaller personal message inbox limit and are rate limited when sending PMs to other users.

Other suggestions
  • Use Google, books, or other definitive sources. There is a lot of information out there.
  • Don't make people guess at what you are trying to say; we are not mind readers. Be clear and concise.
  • Spelling and grammar are not rated, but they do make a post easier to read.
See more
See less

Sept. 2021 edition of TRS8BIT now available

  • Filter
  • Time
  • Show
Clear All
new posts

    Sept. 2021 edition of TRS8BIT now available

    Hi everyone
    just to let you know the Sept. 2021 edition of TRS8BIT is now available from the downloads page at

    In this issue, E.T. Fonehume has a BASIC one-liner to run Kaprekar's Constant. Maurits Van Wijland upgrades a M4 from 16K to 64K in a very detailed article. Lawrence Kesteloot has an upgrade on TRS80-TOOL. 'Noel's Retro Lab' reviews a vintage chip tester in kit form. Ian Mavric sorts out 'contact fatigue' on a M3/4 bus and improves a heavy duty power supply. He also concludes his series of building the 'Super Micro Mk 2'. Pascal Holdry brings us news from France and finds there's a new type of enthusiast. Harold Finch sets us another brain-teaser. Paul T Metcalf shows a M1 using an MDHI monitor. There's also details of running trs80gp on a Raspberry Pi 400 (nothing less than a worlds first), a look at some of the Ebay (UK) bargains from the last 3 months and there's a bargain for someone in the 'For Sale & Wanted' feature. There's the usual feature of 'The Way We Were' and 'Assembler Bytes Back' and to end this veritable ‘feast-of-fun’, the final details of this year's competition. It's a must-read for any Tandy/TRS-80 enthusiast!

    I hope you all find something of interest

    Take care & stay safe

    Thanks Dusty!
    Deutsches TRS-80 Forum


      Originally posted by Dustym View Post
      There's also details of running trs80gp on a Raspberry Pi 400 (nothing less than a worlds first)
      Sorry to say, but SDLTRS runs on the Raspberry Pi since 2016 ...


        with models 2, 3, 4, 12, 16, 6000 too? Not forgetting the M1 with the fantastic Aculab Floppy Tape platform!!


          Originally posted by Dustym View Post
          Not forgetting the M1 with the fantastic Aculab Floppy Tape platform!!
          Where can I find the Aculab-ROM and some tape files to experiment?


            Originally posted by Jenz View Post
            Where can I find the Aculab-ROM and some tape files to experiment?
            The trs80gp documentation has instructions on how to use the Aculab emulation:

            Just run "trs80gp -m1 -aft". Then look under the Wafer -> Manual... menu for information on how to activate the BASIC command extensions and what they are. You can insert a blank tape image and write new files to it.

            That's all there is to it.


              There is an operators manual for the Aculab FT and other bits of FT information on the 'downloads' page at


                Originally posted by gp2000 View Post
                The trs80gp documentation has instructions on how to use the Aculab emulation
                I mean the ROM file that is already built into the trs80gp binary (like "esfrom.z80" for the Exatron in XTRS/SDLTRS) ...


                  Originally posted by Dustym View Post
                  There is an operators manual for the Aculab FT and other bits of FT information on the 'downloads' page at
                  Already known ... Latest XTRS and SDL(2)TRS emulates the Exatron Stringy Floppy, the Aculab seems to be very similar, so maybe some code can be "reused" ...