28 February 2011, 20:43 | #341 | |
Registered User
Join Date: Feb 2008
Location: Federativnaya Respublika Germaniya
Posts: 4,994
|
Quote:
There are cracked versions by "Crack Inc". Maybe they released the game uncracked and later a crackfix, or someone else released a crack fix. Current Known sets: Bumpy's Arcade Fantasy (1992)(Loriciel)cracked Bumpy's Arcade Fantasy (1992)(Loriciel)[cr Crack Inc]uncracked Bumpy's Arcade Fantasy (1992)(Loriciel)[cr Crack Inc][a]cracked Bumpy's Arcade Fantasy (1992)(Loriciel)[cr Crack Inc][a2]cracked Bumpy's Arcade Fantasy (1992)(Loriciel)[cr Crack Inc][a3]uncracked Bumpy's Arcade Fantasy (1992)(Loriciel)[cr Crack Inc][t +1 SCX][a]cracked Bumpy's Arcade Fantasy (1992)(Loriciel)[cr Crack Inc][t +1 SCX]uncracked Some of this sets have also a so called "password option fix". Password protection is before level 2. |
|
25 May 2011, 23:04 | #342 | |
Registered User
Join Date: May 2011
Location: United Kingdom
Posts: 42
|
Quote:
That's what I did to create the protection. Anyone looking at the disk like the greetz? lol. |
|
25 May 2011, 23:12 | #343 |
Phone Homer
Join Date: Jun 2006
Location: 5150
Posts: 5,808
|
I think my memory was a bit hazzy Yeah I always said Mercs was Cool game.
I remember looking at the greetz with a hex editor but cant remember what it said Also saw the thread on TAME - Although I didnt use the Map editor I pinched the rather Nice NES style Mario Tiles - Did you Draw or Trace them? |
25 May 2011, 23:17 | #344 |
Registered User
Join Date: May 2011
Location: United Kingdom
Posts: 42
|
Grabbed them from the Mario ROM image. Then messed with them in the editor. I have a load more somewhere... When I next boot up the Amiga I'll have a bit of a hunt for goodies.
|
26 May 2011, 01:56 | #345 | ||
Da Digger :)
Join Date: Nov 2008
Location: Monza, Italy
Posts: 2,822
|
Quote:
Interesting! How do you do it? Along with the hardware hack/modification to the video port (have you a scheme?) do you need a special software copier or can it be done with some commercial copier such as X-Copy Pro or PowerCopy Pro ? Quote:
Are you the author of Mercs' protection? Are you the game programmer too? |
||
26 May 2011, 02:49 | #346 |
CaptainM68K-SPS France
|
Yes he is actually mercs coder
|
26 May 2011, 03:35 | #347 |
2 contact me: email only!
Join Date: May 2001
Location: Auckland / New Zealand
Posts: 3,187
|
Mercs has the following on the bootblock:
*** Boot block created with PutDisk by Dirty Mind! *** Hi to all those 'Hackers' out there!!! *** If you manage to hack this product, then please say 'Hi' to me on your scroll!!! - Dirty Mind of TES *** Greetings to Joanne & Joseph, S.A.E, Anarchy Automation, A-ha and anyone who can't fit in this bootblock!!! *** |
26 May 2011, 09:26 | #348 |
Registered User
Join Date: May 2011
Location: United Kingdom
Posts: 42
|
On the Video port of the Amiga - at least the A500 - you can supply an alternative master system clock on one of the pins. The pin is mentioned in the hardware manuals, you will have to look it up because I've no idea where I've put mine!
You can use this clock input to speed everything (!!!) up or slow everything down. Just supply an alternative clock source (a crystal or ttl clock) on this pin at this a little faster (get a few different crystals of ever slightly increasing Mhz values) - do this until things stop working, then go back to the cystal just before that one (the stable one). Don't leave it running too long on the clock that is too fast, you don't want to kill your Amiga. Now because everything is running slightly faster, when you write data to the disk the bitcell size (the diameter of a bit written to the disk) is actually slightly smaller. Because of this you can fit more bits in one revolution of a disk. I actually could have written all the tracks long (with an even longer track type) reliably with reliable reads on all the Amigas I tried - this included the boot track. But the Trace duplication equipment didn't like it... With that length, the Trace equipment was able to write the format and verify it - the reason why the who disk didn't use the extended tracks in the end is because someone thought it was risky going out of the official spec of the drives too much for the whole disk. What I was going to do in the end was put slightly extended tracks on the whole disk, and one big one. The main check would check the big one. Then there would be other random checks after level 3 for some info hidden on one of the other hidded long tracks. The good news is that I went off work for a week or so at the end of Mercs and someone decided to take the disks to be mastered early! They took the wrong (not final!) ST disks and the Amiga disks before I had implemented my plan! lol. I wrote a command line utility called PutDisk that allowed me to create the disks. On the game side it was in the bootloader and the game used Trap commands to 'talk' to it. That's why someone on this board saw trap commands in a disassembly and wrongfully assumed that there was no special Amiga coding in Mercs and that it was just a straight ST conversion. Someone else who obviously hadn't seen the game agreed with him. lol. Anyhow, with putdisk I could write any type of track I wanted, even ones with 'random' bits where I specified. Side note: To create random bits on a disk is quite easy, just make the clock and data (in mfm encoding) BOTH zero for a little while in the middle of a well formed track. When this happens the circuitry in the drive (the PLL) lowers it's spec for what is a 1 and raises what is a 0 this happens quickly until it finds 'noise' - the noise is the random bit. Dead easy and almost impossible to detect unless you read each track more than once when copying. Wasn't allowed to use that type of protection either. Anyhow... Despite what most people say about Tiertex, it was really great because a lot of amazing programers and graphic artists passed though it - sharing information and technical tricks that influenced Amiga and ST games in companies they moved too. You also had a good challenge - make an arcade conversion of a top arcade game on two different computers in half a year - can you do it? It's a shame that they had such tight deadlines - When a game comes out in the Arcades, you only have about 6 - 9 months to get it out before people lose interest. In that time you have to map out the entire game, create the graphics, music and sound, get a feel for the game and program it - We never had any graphics or help from Capcom or anyone - everything had to be reversed. When you work 9-5, it's not much time to get it done properly. Dirty Mind was my handle - so was Cat! on other stuff... Last edited by TCD; 26 May 2011 at 09:43. Reason: Back-to-back posts merged. Use the edit function. |
26 May 2011, 15:15 | #349 |
Da Digger :)
Join Date: Nov 2008
Location: Monza, Italy
Posts: 2,822
|
Wow!
Thanks, very interesting! |
26 May 2011, 15:42 | #350 |
Registered User
Join Date: May 2011
Location: United Kingdom
Posts: 42
|
lol - I see your head is now spinning!
|
27 May 2011, 15:22 | #351 | |
Da Digger :)
Join Date: Nov 2008
Location: Monza, Italy
Posts: 2,822
|
Quote:
Perhaps with a nice GUI... I bet Denis (dlfrsilver) would be enthusiastic! |
|
27 May 2011, 16:02 | #352 | |
move.l #$c0ff33,throat
Join Date: Dec 2005
Location: Berlin/Joymoney
Posts: 6,863
|
Now guess who's the one which ComputingData referred to here:
Quote:
I remember that I had a long discussion with him on IRC about that very topic, telling him that the code is actually quite ok and that trap instructions are no proof that is an ST port. |
|
27 May 2011, 17:16 | #353 |
Registered User
Join Date: May 2011
Location: United Kingdom
Posts: 42
|
lol.
The Trap system, like LineA and LineF are pretty useful for an independent sub-system (like a disk loader). I wouldn't use them for something time sensitive like a game loop. |
27 May 2011, 21:41 | #354 |
Da Digger :)
Join Date: Nov 2008
Location: Monza, Italy
Posts: 2,822
|
|
28 May 2011, 11:17 | #355 |
old bearded fool
Join Date: Jan 2010
Location: Bangkok
Age: 56
Posts: 779
|
Did anyone with the original Powercopy (dlfrsilver?) and dongle try dumping the parallel port data using a cheap logic analyzer or similar (non-intrusive) method while copying?
Since the dongle includes some logic, dumping that traffic should make it a lot easier to crack the software. |
28 May 2011, 11:23 | #356 |
CaptainM68K-SPS France
|
The software was brilliantly cracked by stingray lately !
|
28 May 2011, 11:26 | #357 |
old bearded fool
Join Date: Jan 2010
Location: Bangkok
Age: 56
Posts: 779
|
Great, missed that.
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Cracked versions of 3 games | brolly | request.Old Rare Games | 21 | 09 January 2015 16:57 |
new dumps of cracked games | dlfrsilver | project.TOSEC (amiga only) | 6 | 07 January 2013 00:52 |
Piracy/Cracked Games | russraine | Retrogaming General Discussion | 123 | 21 April 2012 19:00 |
Amiga games finally cracked | mike4466 | support.Games | 0 | 01 February 2010 14:08 |
Mysterious games to be cracked/fixed | oldpx | Games images which need to be WHDified | 22 | 21 September 2004 14:57 |
|
|