Dig Dug (Atari, 1983)

[toinet]

Dig Dug digs fruits, vegetables... and tunnels. The Thrill of the arcade game.

I am glad I have the manual as I have never understood that game, I have just discovered we could fire and destroy the evil denizens of the underground!!!


PROTECTION TYPE
On a standard DOS 3.3, volume 254 diskette:
- A change of markers (D5 AA 96, AA DE EB, D5 AA AD, AA DE EB)


DISK COPY
- Launch Advanced Demuffin 1.4
- Insert Dig Dug in disk 1, press P
- Insert a blank disk in drive 2
- Copy the disk with the standard parameters
=> You have a copiable diskette, not a bootable one


REMOVE THE PROTECTION
We now have to replace the right values in the RWTS
- Launch your favorite sector editor
- T0/S2/9E: AA => DE
- T0/S2/A3: DE => AA
- T0/S3/35: AA => DE
- T0/S3/3F: DE => AA
- T0/S3/91: AA => DE
- T0/S3/9B: DE => AA
- T0/S6/AE: AA => DE
- T0/S6/B3: DE => AA


That's it, you can make a backup copy of your diskette.

Toinet

[blk]

Nice game... but disappointing protection :'(
I cracked it this morning, too...
Same observations, same conclusions, same method.
Except the fact that I'm using Adv. Demuffin 1.1, then I had to extract original RWTS, move it in HGR memory space, reboot a dos3.3 disk to save it on a disk.
Then, I loaded this RWTS in Adv. Demuffin 1.1 to copy the original disk.
One funny detail : when booting the original DigDug disk, a simple CTRL-C at prompt gives you all control on the disk (all operating system commands seem to work fine) !
Can you believe it ? The loader is written in BASIC with no protection !
O_O'
_________________
hin hin ^^