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toinet Site Admin
Inscrit le: 15 Juin 2007 Messages: 2928 Localisation: Le Chesnay, France
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Posté le: Mer 24 Mai 2017, 8:12 Sujet du message: Le homard infernal (COPIC/SAARI, 1980-1981) |
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#923 - This is a real time business simmulation. Programmed by COPIC, published by SAARI (you know, the French accounting/hardware company) in 1980-1981. I guess the difference between the 1980 and 1981 versions is the operating system it is running on. The version I have runs under DOS 3.3
Disk structure
This is a nearly standard DOS 3.3 single-sided disk. 35 tracks, 254 is the volume number. The disk cannot be copied with Locksmith Fast Disk Backup.
Protection type
A boot trace of the RWTS and a nibble editor analysis with Copy II plus show a change of the first epilog marker of the address and data fields:
- address field: D5AA96 DFAAEB instead of DEAAEB
- data field: D5AAAD DFAAEB instead of DEAAEB
In both the read and write routines. So, we'll have to perform four changes (two for the read, two for the write)
How to copy
Boot my copy disk and launch Advanced Demuffin 1.4. From now, you have two options:
- press B to boot and grab the original RWTS (put le homard infernal disk in drive 1), or
- bypass the boot and enter the monitor:
Code: |
B930:18 60 EA
B98B:18 60 EA
Press control-Y
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Copy the entire disk
How to normalize
Boot my copy disk and select Disk Fixer
Perform the following changes on the disk:
Code: |
- T0/S2/9E: DF -> DE
- T0/S3/35: DF -> DE
- T0/S3/91: DF -> DE
- T0/S6/AE: DF -> DE
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The disk image is available at http://www.brutaldeluxe.fr/crack/
Reboot and... enjoy,
LoGo
5/2017 |
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