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IDENTIFICATION SERVEUR : 10.14.20.4 - CLIENT : 54.85.57.0 |
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toinet Site Admin
Inscrit le: 15 Juin 2007 Messages: 3062 Localisation: Le Chesnay, France
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Posté le: Ven 07 Fév 2020, 20:26 Sujet du message: Tennis Championship (JRD, 1985) |
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#1028 - A French tennis simulation on your Apple II. Fun and entertaining and in English You can play with all the great tennis champions of that era and on all kinds of fields.
Disk structure
This is a single-sided DOS 3.3 5.25" disk. At least, the way it loads files seems to tell that is a DOS 3.3 disk but we have no prompt. There is no T23.
Protection type
There is a change of the first prolog marker of the address field and a change of the epilog marker of the address field. On all tracks:
- D5/D4AA96 DCCB instead of D5AA96 DEAA
- D5AAAD DEAA which is standard
- The checksum is not correct. Its value must not be validated.
Don't forget that D5/2 = D4/2 = 6A. D5 is used on even tracks, D4 on odd tracks. Gato used the same technique.
What is funny is that the epilog marker is DCCB, CCB reminds me of the Clean Crack Band with Aldo Reset and Laurent Rueil. Was that done on purpose? The HELLO program contains a REM to ALDO on line 3.
How to copy
Boot my copy disk
Launch Advanced Demuffin
Code: |
Press P to bypass boot
Enter the monitor
B942:18
B954:4A C9 6A D0 EF
B98B:18 60 EA
Press ctrl-Y to return to the program
Copy your disk.
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How to crack
Boot my copy disk
Launch Disk Fixer
Code: |
T0/S3/91:DC -> DE
T0/S3/9B:CB -> AA
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The disk image is available at http://www.brutaldeluxe.fr/products/france/jrd/
Reboot and... enjoy,
LoGo
1/2020 |
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