>On Jan 19, 3:44 pm, Roger Schmidt wrote:
> Hi all, got hold of a Spectra Video 328 with CPM 2.24 on on a disk,
> boots allright but the disk seems to have some bad sectors and some of
> the programs like ED dont work, might be bad sectors... is there anyway
> i could get hold of a boot disk for this machine that works? of if i
> could compile a new copy of the programs on the disk that dont work? the
> machine has a Z80 cpu, If anyone has any info about this machine i would
> be gratefull to hear from you!
>

David Dunfield's ImageDisk is a great tool for this purpose, because
it also stores the disk format. There's also a small util included for
converting the disk images to a raw data format used by emulators.

ImageDisk
http://www.classiccmp.org/dunfield/img/


Here are some disk images in a raw data format for use with emulators.

SVI-328 CP/M-80 v2.22 for single sided drives (SVI-905, SVI-605)
http://www.bluemsx.com/dev_download/.../dsk_CPMSS.zip

SVI-328 CP/M-80 v2.24 for double sided drives (SVI-605B)
http://www.bluemsx.com/dev_download/.../dsk_CPMDS.zip

SVI-328 Disk Basic 1.0 for double sided drives
http://www.bluemsx.com/dev_download/...iskBasicDS.zip

SVI-328 Z-CPR3 for double sided drives (requires 80 column card)
http://www.bluemsx.com/dev_download/.../dsk_ZCPR3.zip


For curiosa, the source code for the Spectravideo CP/M CBIOS can be
found here.
http://msx.retro8bits.com/msxsw.html


Reading and writing CP/M files can be done with for example 22Disk
which includes Spectravideo disk definition for double and single
sided drives. The format is also compatible with the Rank Xerox 820 II
SS/DS.

I can e-mail you disk images in IMD format for generating new disks.
The problem is often that the PC FDC can handle the first track which
is FM formatted. If you have a working SVI format program, you can
simply skip this track. Otherwise I can send you a fresh disk.

Btw. various info and manuals can be found at Roger Samdal's
Spectravideo page:
http://www.samdal.com/spectravideo.htm


/Tomas

gargamel.se@gmail.com wrote:
>
> For curiosa, the source code for the Spectravideo CP/M CBIOS can be
> found here.
> http://msx.retro8bits.com/msxsw.html
>
Unfortunately, none of the CBIOS download links work.

Was there ever a CP/M machine that used the 8272 floppy controller chip that
was used in the IBM PC controller? If so, is the CBIOS source available?

tnx!

g.

>On Jan 21, 6:38*pm, ge...@deltasoft.com (Gene) wrote:
> Unfortunately, none of the CBIOS download links work.
>
> Was there ever a CP/M machine that used the 8272 floppy controller chip that
> was used in the IBM PC controller? *If so, is the CBIOS source available?
>

Thanks, for pointing that out. The files are also available from
Roger Hanscom's CBIOS Boneyard page:

http://www.speakeasy.org/~rzh/bb.html

Spectravideo uses the Western Digital 1793 FDC. However there must a
quite a few CP/M machines that uses the PC FDC, out me head I know of
Amstrad CPC and Bondwell 2.

/Tomas

On Mon, 21 Jan 2008 17:38:40 -0000, geneb@deltasoft.com (Gene) wrote:

>gargamel.se@gmail.com wrote:
>>
>> For curiosa, the source code for the Spectravideo CP/M CBIOS can be
>> found here.
>> http://msx.retro8bits.com/msxsw.html
>>
>Unfortunately, none of the CBIOS download links work.
>
>Was there ever a CP/M machine that used the 8272 floppy controller chip that
>was used in the IBM PC controller? If so, is the CBIOS source available?
>
>tnx!
>
>g.

There were quite a few. Starting with the Compupro Disk1 and 1A.
Also a bunch of the single board Z80 systems (z80,64-256k of ram, PIO,
SIO and FDC on an S100 card). The bios for DISK1/1A can be found on
line.

Allison

Allison

> On Jan 21, 6:38 pm, ge...@deltasoft.com (Gene) wrote:
> Was there ever a CP/M machine that used the 8272 floppy controller chip that
> was used in the IBM PC controller? If so, is the CBIOS source available?

I meant the Bondwell 12/14/16 that has the NEC 765 controller (BW2
uses
the WD FDC).

I don't have any system disk and no CBIOS source on the net. The only
thing
is the BWFMT.LBR archive that contains utils for formatting Kaypro II
and
Osborne I disks. Only binarys so you have to disassemble them, the 765
FDC
uses I/O ports $20-$21.

/Tomas

>> Was there ever a CP/M machine that used the 8272 floppy controller chip that
>> was used in the IBM PC controller? If so, is the CBIOS source available?

>I meant the Bondwell 12/14/16 that has the NEC 765 controller (BW2
>uses the WD FDC).

>I don't have any system disk and no CBIOS source on the net. The only
>thing is the BWFMT.LBR archive that contains utils for formatting Kaypro II
>and Osborne I disks. Only binarys so you have to disassemble them, the 765
>FDC uses I/O ports $20-$21.

The Compupro DISK1(A) controllers use the 765/8272 - I have the system
disk images on my site. Browsing through the .IMD images the CP/M 2.2
disk appears to have the .ASM CBIOS source code on it- so that might be
a useful resource. The manual for the card is also available there.

The ImageDisk source code (also available on my site) has 'C' routines
for formatting with the 765 on a PC. I can also provide fairly simple 6809
code to format floppies using a 765 - neither of these exactly pertain to
CP/M, however if you end up writing your own, they might be useful
references.

Dave

--
dave06a@ Low-cost firmware development tools: www.dunfield.com
dunfield. Classic computer collection: www.classiccmp.org/dunfield
com Some stuff I have for sale: www.dunfield.com/sale

no.spam@no.uce.bellatlantic.net wrote:
>
> There were quite a few. Starting with the Compupro Disk1 and 1A.
> Also a bunch of the single board Z80 systems (z80,64-256k of ram, PIO,
> SIO and FDC on an S100 card). The bios for DISK1/1A can be found on
> line.
>

Tomas & Allison, thanks for the info.

g.

Hello,
I got a working boot disk with all the bells and whistles going today.
Ole was nice and sent me a IMD file of his cp/m disk, as IMD destroys
the boot sector, i worked around that to create a formated disk and
sysgen-ed it and then made a copy of Ole's IMD to another then i just
copied all the files from Ole's to my boot disk! Works like a charm!

Roger

gargamel.se@gmail.com skrev:
>> On Jan 19, 3:44 pm, Roger Schmidt wrote:
>> Hi all, got hold of a Spectra Video 328 with CPM 2.24 on on a disk,
>> boots allright but the disk seems to have some bad sectors and some of
>> the programs like ED dont work, might be bad sectors... is there anyway
>> i could get hold of a boot disk for this machine that works? of if i
>> could compile a new copy of the programs on the disk that dont work? the
>> machine has a Z80 cpu, If anyone has any info about this machine i would
>> be gratefull to hear from you!
>>
>
> David Dunfield's ImageDisk is a great tool for this purpose, because
> it also stores the disk format. There's also a small util included for
> converting the disk images to a raw data format used by emulators.
>
> ImageDisk
> http://www.classiccmp.org/dunfield/img/
>
>
> Here are some disk images in a raw data format for use with emulators.
>
> SVI-328 CP/M-80 v2.22 for single sided drives (SVI-905, SVI-605)
> http://www.bluemsx.com/dev_download/.../dsk_CPMSS.zip
>
> SVI-328 CP/M-80 v2.24 for double sided drives (SVI-605B)
> http://www.bluemsx.com/dev_download/.../dsk_CPMDS.zip
>
> SVI-328 Disk Basic 1.0 for double sided drives
> http://www.bluemsx.com/dev_download/...iskBasicDS.zip
>
> SVI-328 Z-CPR3 for double sided drives (requires 80 column card)
> http://www.bluemsx.com/dev_download/.../dsk_ZCPR3.zip
>
>
> For curiosa, the source code for the Spectravideo CP/M CBIOS can be
> found here.
> http://msx.retro8bits.com/msxsw.html
>
>
> Reading and writing CP/M files can be done with for example 22Disk
> which includes Spectravideo disk definition for double and single
> sided drives. The format is also compatible with the Rank Xerox 820 II
> SS/DS.
>
> I can e-mail you disk images in IMD format for generating new disks.
> The problem is often that the PC FDC can handle the first track which
> is FM formatted. If you have a working SVI format program, you can
> simply skip this track. Otherwise I can send you a fresh disk.
>
> Btw. various info and manuals can be found at Roger Samdal's
> Spectravideo page:
> http://www.samdal.com/spectravideo.htm
>
>
> /Tomas

Roger Schmidt wrote:

>Hello,
>I got a working boot disk with all the bells and whistles going today.
>Ole was nice and sent me a IMD file of his cp/m disk, as IMD destroys
>the boot sector, i worked around that to create a formated disk and
>sysgen-ed it and then made a copy of Ole's IMD to another then i just
>copied all the files from Ole's to my boot disk! Works like a charm!


This is the first I've heard of ImageDisk "destroying" boot sectors
If this is the case, could you please forward to me a copy of the
image and details on exactly what you have observed.

Is it possible that the image contains single-density boot tracks
and the system on which it was written (or read for that matter) cannot
do single-density? Did you get errors when recreating the disk?

Regards,
Dave

--
dave06a@ Low-cost firmware development tools: www.dunfield.com
dunfield. Classic computer collection: www.classiccmp.org/dunfield
com Some stuff I have for sale: www.dunfield.com/sale