Announcement

Collapse

Forum 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.


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.


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.



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.


"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.

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

Compupro Mdrive-h driver for non-Compupro machines

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Compupro Mdrive-h driver for non-Compupro machines

    Just wondering if anybody out there has a copy of Mdrive.com for the Compupro Mdrive-H. This was the driver for S100 computers other than Compupro's own machines which had the driver incorporated into the BIOS. One made space for mdrive.com above CP/M and just loaded it. Very simple. I have Mform.com which formats the ramdrive but it would be nice not to have to rewrite the bios. I have several S100 computers and could then use the board on any of them.

    #2
    Mdrive/h

    Originally posted by cellarcat View Post
    Just wondering if anybody out there has a copy of Mdrive.com for the Compupro Mdrive-H. This was the driver for S100 computers other than Compupro's own machines which had the driver incorporated into the BIOS. One made space for mdrive.com above CP/M and just loaded it. Very simple. I have Mform.com which formats the ramdrive but it would be nice not to have to rewrite the bios. I have several S100 computers and could then use the board on any of them.
    Hello,
    I have an S100 machine I started building in 1976. The original was a 2Mhz 8080 and 12k static ram, bootleg MS 8k basic, ASR33 Teletype w/ Ptape rd/punch.
    Over the years it's morphed a bit..6Mhz z80, DiskJocley 2d with two 8inch SSDD drives, 64k ram, and a Compupro MDrive / H that's been sitting in a box since the 80s with no software. The system is working and I'd like to get the Mdrive/H integrated in. I need the 2 programs MDRIVE.COM and MFORM.COM. I was trying to write a basic program to check out the Mdrive and it looks like its alive but I'm fumbling something with the fifo type addressing. Compupro manual doesn't have any diagnostic suggestions.
    Anyway, it would be great if somebody can locate the MDRIVE.COM and MFORM.COM software.
    I don't think you have to rewrite the bios. I think you just need to "Sysgen" the CPM you have to make a "53k" system. I think the Mdrive.com uses the ram above the top of CPM 53k and patches the Cbios (i think).
    Anyway, I could use a copy of MDRIVE.COM and MFORM.COM...


    thanks,
    JeffG

    Comment


      #3
      Originally posted by cellarcat View Post
      Just wondering if anybody out there has a copy of Mdrive.com for the Compupro Mdrive-H. This was the driver for S100 computers other than Compupro's own machines which had the driver incorporated into the BIOS. One made space for mdrive.com above CP/M and just loaded it. Very simple. I have Mform.com which formats the ramdrive but it would be nice not to have to rewrite the bios. I have several S100 computers and could then use the board on any of them.
      INSTALLING M-DRIVE/H DRIVERS IN OTHER CP/M SYSTEMS
      To install the M-DRIVE/H drivers in other CP/M systems, copy the files
      "MDRIVE.COM" and "MFORM.COM" onto your system disk. You must now make some
      room for the new drivers above your current CP/M. Currently, the M-DRlVE/H
      drivers and buffers take about 1K (1024) bytes. This means that your must
      make a CP/M 1K less than the amount of memory available in your system. If
      you do not know how to move your CP/M down, see your system manual. The
      required program is usually called "MOVCPM".
      Once you have 1K of room at the top of memory, each time you boot your
      system, you must call the MDRIVE program. The format of the MDRIVE command is
      as follows:
      MDRIVE -DRIVE DESIGNATOR ADDRESS
      Where DRIVE DESIGNATOR is the let ter of the logical drive you want the
      memory drive to respond to (A-P), and ADDRESS is the address in hex of the end
      of your CP /M, or the TOP of your memory minus IK. See table I to determine
      what hex address you should use for different memory sizes.
      TABLE 1
      Amount of memory Hex address to use size CPM to make
      64K FCOO 63K
      60K ECOO 59K
      56K DCOO 55K
      52K CCOO 5IK

      Comment


        #4
        It is fairly easy to find the program MFORM.COM, but apparently MDRIVE.COM is not so easy to find. If you have access to the RLEE archive, you can find a number of copies of MFORM.COM there (look in the M/MORROW directory). There is also a CPMDRV.COM which may be a version of MOVCPM with the MDRIVE stuff included in the BIOS? I have not investigated that aspect of it fully in order to be able to say for sure.

        Roger

        Comment


          #5
          still can't find MDRIVE.COM anywhere.
          I'm trying to modify cbios with the Morrow suggested "skeleton mdrive bios" but I'm having trouble with the large modified cbios file.
          The CPM-80 built in assembler is reporting multiple errors for imbeded non print characters. I'm not very skilled with the CPM ed program.
          The next thing I'm going to try is the Microsoft M80 / L80

          Comment

          Working...
          X