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Forum Index : Microcontroller and PC projects : Any CP/M People out there ?

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BobDevries

Senior Member

Joined: 08/06/2011
Location: Australia
Posts: 266
Posted: 05:35am 07 Oct 2011
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Looks like I have a steepish (re-)learning curve ahead of me.

I'm also building a N8VEM ZETA SBC. Still waiting on parts, drat it. Futurlec seems to be very slow.

Regards,
Bob Devries
Dalby, QLD, Australia
 
ksdesigns

Senior Member

Joined: 25/06/2011
Location: United States
Posts: 143
Posted: 05:39am 07 Oct 2011
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Glad you got it going .. updated link fixed file
on the b: driver there is a program called speed.com you can set the sim speed
speed 0 is full out no delays
ken

---==[HERE">==--- Edited by ksdesigns 2011-10-08
 
BobDevries

Senior Member

Joined: 08/06/2011
Location: Australia
Posts: 266
Posted: 10:37pm 07 Oct 2011
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morning, Ken.

Just a quick couple of questions...

What is the programme needed to copy files to/from a CP/M disk image file?

Is it possible to use different sized (i.e. from a different emulator) disk image files on the Maximite CP/M emulator?

Regards,
Bob Devries
Dalby, QLD, Australia
 
ksdesigns

Senior Member

Joined: 25/06/2011
Location: United States
Posts: 143
Posted: 11:44pm 07 Oct 2011
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To copy files use PIP like pip c:=pip.com
http://userweb.port.ac.uk/~msm/interests/chistory/documents/ cpm-22-manual/ch1.html#Section_1.6.4
have not tried other disk images yet
ken
 
BobDevries

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Joined: 08/06/2011
Location: Australia
Posts: 266
Posted: 11:51pm 07 Oct 2011
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Hi Ken,

sorry, I didn't make that clear. Are you able to copy files to/from the disk image file in Windows? I have seen something called CPMTOOLS, but I don't know enough about CP/M disk formats for that to be useful.

Regards,
Bob Devries
Dalby, QLD, Australia
 
ksdesigns

Senior Member

Joined: 25/06/2011
Location: United States
Posts: 143
Posted: 11:59pm 07 Oct 2011
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Right sorry ya use cpmtools and cpmcp but dont you mkfs.cpm to make blank images it does not seem to work correct ..
get the z80pack 1.17 and use for format command in there to make blank images
ken

 
ksdesigns

Senior Member

Joined: 25/06/2011
Location: United States
Posts: 143
Posted: 12:11am 08 Oct 2011
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Forgot one more thing with cpmtools you will need to tell it the disk format
with -f ibm-3740
ken
 
BobDevries

Senior Member

Joined: 08/06/2011
Location: Australia
Posts: 266
Posted: 12:22am 08 Oct 2011
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Thanks Ken, that's made it clearer.

Does that only apply to the images in DRIVEA and DRIVEB, or is CPMTOOLS smart enough to work out the rest?

I have a disk image which has DBASEII on it. The image is 1113536 bytes long. The first $66C3 (26307) bytes are all $E5, and then there's a directory entry. First byte = $00 (user number, I think?) then the filename.

Is it possible to get the files off it? I tried to make it drivei.cpm, but no go.

Is it possible to change the drive statistics from the command line in CP/M?

Regards,
Bob Devries
Dalby, QLD, Australia
 
ksdesigns

Senior Member

Joined: 25/06/2011
Location: United States
Posts: 143
Posted: 12:31am 08 Oct 2011
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i have a wordstar disk that's the same just start working on it to figure out the format
http://www.autometer.de/unix4fun/z80pack/index.html
lots of dsk images there
 
BobDevries

Senior Member

Joined: 08/06/2011
Location: Australia
Posts: 266
Posted: 01:17am 08 Oct 2011
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Ken,

I worked out that the dbase.dsk image file was from the ALTAIR32 emulator. I loaded that up, and I can access the disk image.

STAT DSK: gives the following parameters:


B: Drive Characteristics
2040: 128 Byte Record Capacity
255: Kilobyte Drive Capacity
256: 32 Byte Directory Entries
256: Checked Directory Entries
128: Records/ Extent
8: Records/ Block
32: Sectors/ Track
6: Reserved Tracks


Hope that helps.

Regards,
Bob Devries
Dalby, QLD, Australia
 
mookster1
Regular Member

Joined: 10/06/2011
Location: New Zealand
Posts: 81
Posted: 07:22am 08 Oct 2011
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Hi all,

I love old tech (but have never used it because I'm under 20!) and eagerly installed CP/M, but I'll be going back to MMBASIC until I can figure out how to use it (I'll get the Windows emulator for it and have a play.) At the moment I'm trying to write Conway's Game Of Life in MMBASIC, which will be pretty neat when I finally do it.
Capacitance is futile - roll on 2012!
 
bamchch
Newbie

Joined: 06/10/2011
Location: New Zealand
Posts: 4
Posted: 09:01am 10 Oct 2011
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Hi Ken

I have formated an 8GB CD Sim card, copied drivea.cpm, drive b.cpm drivec.cpm and drivei.cpm over to the card.

I have 'flashed' the maximite with your Hex code and installed teh CD Sim card.

On power up, the good news is that it works!

I get your banner, and can 'DIR' drive A: and see files there, however when I enter:

user 8 for example, I cannot see drive I, or any of the other files on the CD Card.

Any thoughts as to what I'm doing wrong?

I have checked the CD card again, and the .cpm files are on the card.

All assistance apprecaited.

Kind regards
Brendan
 
ArtBecker
Regular Member

Joined: 25/08/2011
Location: Philippines
Posts: 47
Posted: 02:30pm 10 Oct 2011
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Try using a 2GB or smaller card, formatted for FAT16.

Once that works, you can try larger cards, SDHC, and the FAT32 filesystem.
 
BobDevries

Senior Member

Joined: 08/06/2011
Location: Australia
Posts: 266
Posted: 09:20pm 10 Oct 2011
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Brendan,

a short time ago I reported the same problem to Ken, and he replied that he had inadvertently included a blank drivei.cpm file. He provided a link to a replacement.

Have a read a few messages back up the list.

Regards,
Bob Devries
Dalby, QLD, Australia
 
jaromir
Newbie

Joined: 14/10/2011
Location: Slovakia
Posts: 1
Posted: 06:05am 14 Oct 2011
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Hello guys,

you may be interested in my PC/M emulator, running on PIC32.
Core of emulator consists of PIC32 and SPI FLASH - in fact it is all what you need to get CP/M running. There is also one PIC16 scanning keyboard and another one PIC18 making VT100 compatible terminal for 240x128 pixel LCD. This all makes relativley low power CP/M device intended to form kind of "CP/M laptop".
A few more details and link to photogallery is avaliable at http://jaromir.xf.cz/, but there are no sources yet - it is a bit messy now. If somebody would be interested, I may send it by e-mail, but at your own risk.
 
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