Trying to get a vt100 patched screen for cromix

[Christopher Mallery]

I used the Java program to create a floppy image with a patched version of screen on it.  I was able to mount the floppy and copy the .com file off the floppy.  So far so good, however when I run it I get an error like, "file is inaccessible" Sorry paraphrasing from another room.  I have no idea what the error means.  Any ideas?

Thanks!

[Mike Arnold]

Christopher, can you ascertain if the error message relates to loading screen or is it from screen itself? If the latter then screen has not been able to pick up the filename from the command line (eg screen file.txt and it cannot see "file.txt") or else it is trying to access the disk to create/edit file.txt and hitting an OS problem.
If the former then I guess that Cromix cannot find screen.bin where it expects it to be. If I am adding executables to a Cromix filing system I put them in /bin to ensure that they are in the default Cromix search area.

[Mike Arnold]

Oh, and then there are permissions which are the bane of any unix/Cromix user!

[Chris LaFond]

Can you list the disk, DIR?

can you copy other things unto the disk?

What if you reformatted the disk? Does that change the errors?

You should get an error code Disk Mode Error: Dev: maj dev: min dev; blk #, Cylinder cc, Sector SS Status=ee

Page 479 lists disk errors

https://www.hartetechnologies.com/manuals/Cromemco/Cromemco%20Cromix%20Instruction%20Manual.pdf

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[Richard Muse]

You will also get an access error if the permissions don't include e for executable. # access rewa.rewa.rewa lets everybody execute the program. Don't know if this is your issue but has happened to me more than once copying a program to cromix but not setting execute permission.

Just trying to hit the simple stuff.

R

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[Roger Hanscom]

Might I suggest a different approach?  Are you familiar with the great 68k emulator "com2x".  It runs 8080 code in the 68k environment.  You can run editors that are written for the 8080 -- many of the "standards" are.  I think word*, and wormaster are.  I have a version of wordmaster (my favorite) that runs VT100.  It is small and pretty fast, even though it is being emulated.  In addition, my version of wordmaster displays about 48 lines of text/code.  Why not use something like com2x to support editing?  Is there an emulator like com2x for Cromix?

Roger

[Christopher Mallery]

For some reason on my Cromix system I cannot run any .COM binary, such as asmb.com and link.com.  I get the same error as with screen:

# asmb.com
Error during loading of the program
File not accessible: "asmb.com"
#

Do I know have something setup correctly?

Thanks.

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[Mike Arnold]

Ah ha. Sounds like you are missing sim.bin or it is not in the /bin directory. Without it you cannot run CDOS programs.

[Christopher Mallery]

That is what I thought too, but sim seems to be there:

# sim
CDOS SIMULATOR version 02.67

# 

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[Mike Arnold]

Are you running Cromix+? Later versions require some additional files (called z80.sys or something). Also, do you have a Z80 in the processor board? I think that the XXU (?) had a 68030 but no Z80. In those systems you needed an IOP and it ran Z80 programs in there but I cannot remember what you had to do as system administrator to make it all work.

[Christopher Mallery]

Its original Comix on a ZPU.

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[Mike Arnold]

You might have come to the end of the road on this one if you are running Z80 Cromix. I am guessing a corrupt installation or similar. I think that 11.27 was the last (and stable) version. I can only suggest a clean installation. 

If you have no luck I can cut you an old school floppy with the basics of 11.27 but you'll need a real drive and the patience to wait for something to arrive by snail mail from the UK.

[Christopher Mallery]

bummer.  This install came from an 8" disk image off the github.  I'll see if I can find another 11.27

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[Roger Hanscom]

>> bummer.  This install came from an 8" disk image off the github.  I'll see if I can find another 11.27

Where are you located?  I can snail mail you a 5.25" HD boot floppy for Z80 Cromix if you want.  Yes, it is 11.27.  OR, I can email the required files to boot up Z80 Cromix from a flash floppy Gotek ... if you are set up for that.

Roger  (I'm in Washington, halfway between Seattle and the Canadian Border.)

[Christopher Mallery]

I am in Redmond. :) I am set up with HxC emulators on the machine, so disk images would work.

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[Roger Hanscom]

On Fri, Feb 28, 2025 at 12:56 PM Christopher Mallery <christoph...@gmail.com> wrote:

I am in Redmond. :) I am set up with HxC emulators on the machine, so disk images would work.

Wow!!  Right down the road from here.  I had no idea.

Today is too nice to stay inside, so give me a few hours and I'll zip up the contents of my flash floppy Gotek memory stick and post them here.

Roger

 

[Christopher Mallery]

So I have done some "debugging." 

I found another disk image in the github for 11.26 and it gives the same error.  The one thing that I am trying to rule out is something funny is happening with the disk image with the .com files on it.  My process is:

1. download asmb.com & associated files from the github.

2. Use Damian's tool to create a disk image (.IMD)

3. Use the HxC software to convert that .IMD into an .HFE

4. Mount the HFE on my HxC emulator

5. run asmb.com (from the disk or from /bin doesn't change the behavior)

6. Get the error.

I am currently trying to find a cromix disk image with asmb.com on it to see if my disk image juggling is the problem.

Thanks.

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[Christopher Mallery]

Its my disk juggling.  I just copied asmb.com from a cdos disk in the github and it works. 

[Chris LaFond]

I didn't realize I sent that email to Roger. Sorry about that.

To everyone else. Here are my Cromix hfe disk images, Maybe they are useful

Here are all my Cromix images for Z80

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[Christopher Mallery]

Well I successfully got a VT100 compatible screen.bin for Cromix on my machine.  That made for a fun day, lol.  Now I am looking for a VT100 compatible screen.com for CDOS.  I am looking at how to mod it myself, but I figured I'd ask if anyone has one. 

Thanks!

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[KDK KDK]

Go on the repository. There is a screen.com patched for vt100. Works for me

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[Christopher Mallery]

I found this one m\cromemco\code\editor\Screen Editor\collection\scvt100.com, but I get:

A.scvt100
Invalid jump to location 0008H

when I run it.  I haven't looked into it too hard yet.

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[Roger Hanscom]

Here are the files on my Z80 Cromix memory stick that I use to boot with.  The Gotek is A:, and B:->D: are 5.25" HD floppy drives.

Roger