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Conversion of MFM to FM Disk Image

spiceminer

Experienced Member
Joined
Mar 8, 2014
Messages
96
Location
Europe
Hi everybody,

I have recently bought a SKS KISS-II machine, which was the predecessor of the Triumph-Adler P1/2 series of computers https://www.old-computers.com/museum/computer.asp?st=1&c=484

Unfortunately, the disk images I have available are for the MFM type floppy controller with I assume 320 kb capacity. My machine has the old 1771 controller that supports FM only with 80kb single sided disks.

Is there any way to convert these MFM images to FM and write them to a PC that floppy controller supports FM?

Off course, the disk image to be converted should contain less than 80kb of data which should be the case.

Best regards
Stephan
 

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ldkraemer

Veteran Member
Joined
Mar 14, 2013
Messages
2,228
Location
Chaffee, MO
There is some interesting information here:
http://www.waltroper-aufbruch.de/Archiv/AlphatronicP2.php

Also Royal Alphatronic Information at:

http://www.retroarchive.org/hardware/Royal/index.html
Code:
Name                  Size      Format  Description
-------------         --------  ------  -----------------------------------------------------
cis-cobol.imd            98413  DSDD    CIS COBOL MASTER 4/28/86
cpm-utilities.imd       217218  DSDD    CP/M Utilities
cpm-zcpr-autoload.imd    18106  DSDD    CP/M 2.2 #34332 with ZCPR CCP
                                        Autoload MODSTART
cpm-zcpr.imd             18084  DSDD    CP/M 2.2 #34532 ZCPR CCP			
dbase-ii.imd            307258  DSDD    DBASE II (MASTER) 4/4/86		
micro-prolog.imd        297572  DSDD    MICRO-PROLOG (MASTER) 4/4/86					
zasm-zsid.imd            70614  DSDD    ZASM & ZSID (MASTER)

CONTENTS.txt - Directory listings for the disks listed above.

royal_alphatronic_manual.pdf  35MB      Royal Alphatronic PC Manual

dskbasic.td0             64140  DSDD    Disk BASIC v5.29 (Microsoft BASIC)
roycpm.td0              128877  DSDD    CP/M 2.2 Royal Alphatronic, Master Disk
roycpm2.td0             128877  DSDD    CP/M 2.2 Royal Alphatronic, Master Disk (Alt Serial Number)


Larry
 

spiceminer

Experienced Member
Joined
Mar 8, 2014
Messages
96
Location
Europe
Thanks a lot.

All disk images I can find for the P2 machine are MFM 160kb - I am looking for a FM image, 80kb, with the disk format routine on it.
 
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