Divide plus and plus D

Talk on the DivIDE Plus Hard disk interface for the Sinclair ZX Spectrum, including manual updates and FAQs
Rorschack
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Re: Divide plus and plus D

Post by Rorschack » Sun Jan 26, 2014 6:00 pm

Yes - although the problem is that I don't know if any of the emulators can read from within a +divIDE virtual disk image to let you get them onto the PC side...
+DivIDE should work with all DISCiPLE and +D software which doesn't call routines in G+DOS directly. At the moment it is not 128K mode compatible - it does work in 48K mode on an original 128K.
... and there is another problem: reading DivIDE plus manual I found that +divIDE works only in 48k mode. It is a very big problem because I have many 128 only games which will not be converted: those games were multiloading in 48k mode but loaded all the code blocks ie game levels in 128 memory. So we have to use HxC virtual floppy discs

Rorschack
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Re: Divide plus and plus D

Post by Rorschack » Mon Jan 27, 2014 10:03 am

So we have to use HxC virtual floppy discs
I contacted Jean Francois Del Nero (who produces HxC floppy emulator): he says that the floppy emulator "is already working" with plusD.
Do you know compatibility issued with plusD and Lotharek's HxC floppy disc emulator? In HxC floppy disc emulator compatibility list PlusD does not appear (only Spectrum +3 disc appears)

RWAP
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Re: Divide plus and plus D

Post by RWAP » Mon Jan 27, 2014 1:05 pm

Unfortunately, I do not know if there is a compatability issue with the HxC - it should be possible to use the Load RAW Image option in the HxC software - see the image:
HxC - PlusD Raw Image Settings.gif
HxC - PlusD Raw Image Settings.gif (64.79 KiB) Viewed 64590 times
That should work - but may need some fine tuning. Unfortunately, whilst I have (and stock) HxC Floppy Disk Emulators, I do not have a PlusD interface to try this with!
Rich Mellor
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Rorschack
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Re: Divide plus and plus D

Post by Rorschack » Wed Jan 29, 2014 6:00 pm

That should work - but may need some fine tuning. Unfortunately, whilst I have (and stock) HxC Floppy Disk Emulators, I do not have a PlusD interface to try this with!
All right, I'll buy this floppy disc emulator

http://lotharek.pl/product.php?pid=122

... and I'll be your guinea pig. Let's start experimenting plusD compatibility!!!
PLease, ler me know if I have chosen the right model

PS are you sure about previous settings? Please, remember that I'll connect a Shugart FDD as FDD 1 and HxC Floppy emulator as FDD 2 (... and I know I'll face very big problems!!!)

RWAP
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Re: Divide plus and plus D

Post by RWAP » Tue Feb 04, 2014 10:09 pm

Ooo - that looks nice - yes, it is the right thing to get - I sell the original bare interfaces:

http://www.sellmyretro.com/offer/detail ... es%29-2227

The cased version does look nice though :)
Rich Mellor
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geosiou
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Re: Divide plus and plus D

Post by geosiou » Wed Mar 12, 2014 8:35 am

Dear Rorschack,
let us all know your experience with the HxC Floppy Disk Emulator you are buying! I was thinking about the same model exactly!
As far as I understood you can really set the floppy images up, by really formating them (FORMAT d1) from the Plus D itself! Or there is something more to do with the HxCFloppyEmulator software before that?
I like the option to format from the Plus D itself since I use BetaDOS and especially its option to format the disk with larger directories so as to hold more than 80 files! Nearly all my 3.5'' disks have about 160 - 240 files on them. It is nothing special as far as tracks and sectors are concerned; the disk is again formated with 80 tracks/side and 10 sectors/tracks. It is just that BetaDOS devotes more than 4 (G+DOS case) of the disk's tracks for the directory; up to 12 for 240 files/disk. Of course since the tracks and sectors are the same, this means there is less space left for the actual files' data, ie:

4 tracks directory = 4x20 filenames = 80 filename "slots" - Space left on disk = 800KB unformatted - 4 tracks x 10 sectors x 0.5 Kbytes/sector = 780KB (like G+DOS)
12 tracks directory = 12x20 filenames = 240 filename "slots" - Space left on disk = 800KB unformatted - 12 tracks x 10 sectors x 0.5 Kbytes/sector = 740KB.

I'm writing all these to show that the tracks and sectors are the same as G+DOS format and there is nothing "low level" special (like extra track formating) that BetaDOS does...
The only thing I'm wondering is that if HxCFloppyEmulator disk images can't be formatted by the real FORMAT command from the Plus D (G+DOS or BetaDOS) and need to be low level set up AND (soft) FORMATTED from PC and its HxCFloppyEmulator software, maybe even if there is support for G+DOS, there is not for BetaDOS.
Unless the case is that HxCFloppyEmulator software is just needed to setup floppy images for 2 sides, 80 tracks/side and 10 sectors/track and then the Plus D DOS comes into play to actual (soft) FORMAT those images! Then I suppose BetaDOS would work with whatever soft FORMAT I like.

Please share your experience with HxCFloppyEmulator as I'm really interested in this solution for my Spectrum. DEVIDE is not for me as it can't be used with Plus D together, and I really need it for its printer output. Also it would be too difficult to convert all my Plus D version software (Campion, WordMaster, Typeliner, Headliner, Art Studio, Artist II, Beta Basic etc.) to work with +DEVIDE since most of them use Plus D's machine code CC to load/save/cat/print.

Thank you in advance!

Rorschack
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Re: Divide plus and plus D

Post by Rorschack » Tue Apr 01, 2014 12:35 pm

Hi My Friends,
I have stopped (for a short time) to investigate about +D and HxC FDD emulator for personal problems... but here is a Spectrum user who managed to make HxC to work

https://www.youtube.com/watch?v=vDlMhCo ... e=youtu.be

In WOS forum I required him to share HxC dip switches configuration... I hope he'll help all of us.
Until now there is not a way to store plusD images in a fast way (I think)

Lydirr
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Re: Divide plus and plus D

Post by Lydirr » Sat Jul 15, 2017 8:29 am

RWAP wrote:
Tue Jan 21, 2014 8:17 pm
Unfortunately, you cannot currently use them both.

If you are interested in helping test and maybe even develop some code, I will pass your details to the +DivIDE Firmware author. He had developed a version about 18 months ago which allowed the two units to work together, but there were some issues - I forget what they were....
Interesting, where can I learn more about combining them?

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Re: Divide plus and plus D

Post by RWAP » Sat Jul 15, 2017 10:37 am

Unfortunately, time has moved on and we no longer sell either the PlusD or the DivIDE Plus.

Rudy Biesma was looking into getting the two units working together, but he never managed to get the system reliable enough to release it - his details appear on his website - http://www.biehold.nl/rudy/index.htm
Rich Mellor
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