CP/M resident commands

[frayj...@yahoo.com]

Hi all.

This may be a bit of a newbie question but I just cannot get an answer out of google.

I have an RC2014 with the 64K RAM/ROM option running CPM with the CF card.

The A: drive has download.com but most of the useful stuff is on the C: drive.

Is there a way to setup CPM to automatically search the C: drive regardless of the drive I am logged on to. IE If I am on the D: drive & try to do a pip command I don't have to explicitly type c:pip

I'm sure I saw something like this in my travels but I haven't been able to find it again.

Thanks

Alex 

[Douglas Miller]

CP/M 3 provides a "search path" that you can configure to locate commands on any of your drives. For CP/M 2.2 that depends on whether your CP/M "vendor" provided a custom CCP that adds a similar feature. I don't know if any of the Rc2014 CP/M 2.2 providers have added that feature.

[Phillip Stevens]

Alex wrote:

Is there a way to setup CPM to automatically search the C: drive regardless of the drive I am logged on to. IE If I am on the D: drive & try to do a pip command I don't have to explicitly type c:pip

There is a great replacement for the CCP that I like, called Microshell. It does the auto completion and directory searches etc, off CP/M 2.2. i.e. Using the standard CP/M as a base.

Just start it with sh from the command prompt. And exit when you’re done with -x. It is in the manual, but who reads those.

 http://www.z80.eu/microshell.

Hope that helps.

Phillip

[Fred Weigel]

I wrote R.COM for this (on CP/M 2)

https://github.com/ratboy666/r

It looks on A: user 0, but can be rebuilt to look elsewhere. If the COM file isn't there, tries COMMAND.LBR

CP/M 3 has search paths

Fred Weigel

[Karl Matthias]

Hi Pillip,

This sounds pretty interesting, but the link doesn't work, apparently. For those looking for it, I believe the link is http://www.z80.eu/microshell.html

Definitely will check it out!

[Stuart Smith]

ZCPR3/Zsystem provides search paths. 

On Fri, 13 May 2022, 21:33 Douglas Miller, <durga...@gmail.com> wrote:

CP/M 3 provides a "search path" that you can configure to locate commands on any of your drives. For CP/M 2.2 that depends on whether your CP/M "vendor" provided a custom CCP that adds a similar feature. I don't know if any of the Rc2014 CP/M 2.2 providers have added that feature.

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[Richard Deane]

With a larger system that runs romwbw you would be able to choose zsystem or cpm3 that has a path search.

Plain simple cpm22 doesn't have that feature. Perhaps an addon like Microshell might do it, I've not tried it for that as I tend just to use the above systems just for that feature.

You might be able to find a non-banked cpm3 system, but you would drop tpa size.

I would suggest enhancing to a 256k banked ram/rom system, then run romwbw.

Richard 

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[frayj...@yahoo.com]

Hi all 

I just thought I would put a link to this as it is related to what I originally asked.

https://techtinkering.com/articles/epex-an-environment-extension-for-cpm/

This guy has some great articles related to CPM. Well worth reading and much appreciated.

Thanks

Alex