R: Floppy disk: one drive per face

[Enrico email.it]

So this for to read 1st face A:

BEGIN MUP1  Mupid Seite 1 - SSSD 96 tpi 5.25"
DENSITY FM ,LOW
CYLINDERS 80
SIDES 1
SECTORS 10,256
SIDE1 0 0,2,4,6,8,1,3,5,7,9
BSH 4 BLM 15 EXM 1 DSM 96 DRM 127 AL0 0C0H AL1 0 OFS 3
END

And this for to read the other side B:

BEGIN MUP2  Mupid Seite 2 - SSSD 96 tpi 5.25"
DENSITY FM ,LOW
CYLINDERS 80
SIDES 2
SECTORS 10,256
SIDE2 0 0,2,4,6,8,1,3,5,7,9
SIDE1 0 0,2,4,6,8,1,3,5,7,9
ORDER CYLINDERS
BSH 4 BLM 15 EXM 1 DSM 96 DRM 127 AL0 0C0H AL1 0 OFS 3
END

Right?

Enrico

-----Messaggio originale-----
Da: cctalk [mailto:cctalk-bounces at classiccmp.org] Per conto di Christian
Corti via cctalk
Inviato: venerdì 6 novembre 2020 09:20
A: General Discussion: On-Topic and Off-Topic Posts
Oggetto: Re: Floppy disk: one drive per face

On Thu, 5 Nov 2020, "Enrico email.it" wrote:
> How should we configure 22disk to be able to do the same thing on the B
side
> of the same floppy disk?
>
> Inserting Side 2 in the definition table is not enough ....

Actually, it is almost that ;-)
I have a similar system, the fl100 floppy drive system, part of the 
Grundig ptc100 (i.e. Mupid 2)
A: is side 0, and B: is side 1. Here's my 22disk definition for this. 
Please note, the trick is to define a two-sided format for the second side 
and first describe side 2 ! The definition of side 1 will be ignored 
because the CP/M directory won't specify any block beyond the first side.
And of course, the track order is by cylinder, not by side.

BEGIN MUP1  Mupid Seite 1 - SSSD 96 tpi 5.25"
DENSITY FM ,LOW
CYLINDERS 80
SIDES 1
SECTORS 10,256
SIDE1 0 0,2,4,6,8,1,3,5,7,9
BSH 4 BLM 15 EXM 1 DSM 96 DRM 127 AL0 0C0H AL1 0 OFS 3
END

BEGIN MUP2  Mupid Seite 2 - SSSD 96 tpi 5.25"
DENSITY FM ,LOW
CYLINDERS 80
SIDES 2
SECTORS 10,256
SIDE2 0 0,2,4,6,8,1,3,5,7,9
SIDE1 0 0,2,4,6,8,1,3,5,7,9
ORDER CYLINDERS
BSH 4 BLM 15 EXM 1 DSM 96 DRM 127 AL0 0C0H AL1 0 OFS 3
END



Christian