toinet
Inscrit le: 15 Juin 2007
Messages: 326
Localisation: Paris, France
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 Post� le: Mar 04 Sep 2007, 21:54 Sujet du message: The Dam Busters (Accolade, 1985) |
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Ahem! What kind of game is it? Maybe a simulation one... If somebody cold help...
DISK STRUCTURE
The disk is a standard 16-sector one with track $22 that cannot be copied.
BOOT TRACE
Sort of... Boot your standard DOS 3.3 master disk, put the disk in drive and CATALOG it:
- LOAD HELLO just launches SPOCK BRAINS
- BLOCK SPOCK BRAINS (loaded at $2000)
- CALL -151
- 2000L
We find the following code:
| Code: |
JSR $2030
BEQ *+3
JMP $C600
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Hum... Easy, isn't it?
DISK COPY
Launch Locksmith 6.3 fast disk backup and copy the entire disk.
PROTECTION REMOVAL
- Launch Disk Fixer
- Insert the game
- Press D (Directory command)
- Select SPOCK BRAINS
- At offset $29, change 20 30 20 with EA A9 00
- Save the sector back to disk (T13/SB)
Please note that I have already seen that kind of protection but I cannot remember on which game...
Enjoy,
toinet |
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