Megatraveller slave

BlueAchenar · 30 December 2008, 23:30

I'm pleased to announce I'll be working in a WDHLoad slave for "MegaTraveller: The Zhodani Conspiracy" in January, right after (and if) the original disks get to me.

It's going to be my first. I'm expecting this to be great fun.

AmigaFriend · 30 December 2008, 23:34

Quote:

Originally Posted by BlueAchenar

I'm pleased to announce I'll be working in a WDHLoad slave for "MegaTraveller: The Zhodani Conspiracy" in January, right after (and if) the original disks get to me.

It's going to be my first. I'm expecting this to be great fun.

Great BlueAchenar!

Hope everything will go smooth

ppill · 30 December 2008, 23:47

Good luck with it

Seems like a nice game.

TCD · 31 December 2008, 01:31

Quote:

Originally Posted by BlueAchenar

I'm pleased to announce I'll be working in a WDHLoad slave for "MegaTraveller: The Zhodani Conspiracy" in January, right after (and if) the original disks get to me.

It's going to be my first. I'm expecting this to be great fun.

Go BlueAchenar, go BlueAchenar *now where are my pompoms...*

It's a nice game and a cool one for your first go at WHDLoad slave programming

Like I said best of luck and I'm sure if you stumbleover something there are a lot of folks here that will help you

Galahad/FLT · 31 December 2008, 02:12

Quote:

Originally Posted by BlueAchenar

I'm pleased to announce I'll be working in a WDHLoad slave for "MegaTraveller: The Zhodani Conspiracy" in January, right after (and if) the original disks get to me.

It's going to be my first. I'm expecting this to be great fun.

If I remember rightly, its RNC Copylock protected on the main executable file, all encrypted, I take it you are familiar with this protection?

BlueAchenar · 31 December 2008, 02:14

Quote:

Originally Posted by Galahad/FLT

If I remember rightly, its RNC Copylock protected on the main executable file, all encrypted, I take it you are familiar with this protection?

Not really, but one has to start somewhere.

I was hoping more for only some custom trackloader, but decrypting stuff is fun too.

Galahad/FLT · 31 December 2008, 02:41

Quote:

Originally Posted by BlueAchenar

Not really, but one has to start somewhere.

I was hoping more for only some custom trackloader, but decrypting stuff is fun too.

Megatraveller is a dos loading game, no custom loading at all.

BlueAchenar · 31 December 2008, 02:48

Quote:

Originally Posted by Galahad/FLT

Megatraveller is a dos loading game, no custom loading at all.

I wouldn't know that. I'm still waiting for the game disks.

Anyway, it seems RNC is a common protection scheme and the game decrypts itself so it might be boring but is doable.

Galahad/FLT · 31 December 2008, 02:55

Quote:

Originally Posted by BlueAchenar

I wouldn't know that. I'm still waiting for the game disks.

Anyway, it seems RNC is a common protection scheme and the game decrypts itself so it might be boring but is doable.

The way its implemented on Megatraveller actually isn't that common.

usually the RNC Copylock routine is called, it returns a serial key in D0, but this Copylock doesn't, the Copylock is built into the encrypted file, and if it doesn't sucessfully get the right serial key, then the file doesn't decrypt.

Of course the Copylock uses trace vector decoding, so you never see you code in the Copylock

BlueAchenar · 31 December 2008, 03:09

Quote:

Originally Posted by Galahad/FLT

The way its implemented on Megatraveller actually isn't that common.

usually the RNC Copylock routine is called, it returns a serial key in D0, but this Copylock doesn't, the Copylock is built into the encrypted file, and if it doesn't sucessfully get the right serial key, then the file doesn't decrypt.

Of course the Copylock uses trace vector decoding, so you never see you code in the Copylock

Hum, I see this is going to be really fun.

I've never cracked an Amiga game, only Windowze (don't quote me on this

).

Do you have any RNC Copylock docs (those that came with Xenon II for example)?

BlueAchenar · 31 December 2008, 03:25

And by the way... do you have the resourced sources to the games you've WHDified?

BlueAchenar · 01 January 2009, 23:30

I'm feeling a bit lazy today to work on the new compactflash driver, so I think I'll start working on this with the SPS images.

I should have the disks here by next week anyway and lots of other games with no WHDLoad slave to have more fun if I start getting the hang of it.

Galahad/FLT · 01 January 2009, 23:33

Quote:

Originally Posted by BlueAchenar

I'm feeling a bit lazy today to work on the new compactflash driver, so I think I'll start working on this with the SPS images.

I should have the disks here by next week anyway and lots of other games with no WHDLoad slave to have more fun if I start getting the hang of it.

Personally, if you've never cracked an encrypted Copylock before, I think you're taking on something you won't be able to do, but if you manage it, fair play.

BlueAchenar · 01 January 2009, 23:38

Quote:

Originally Posted by Galahad/FLT

Personally, if you've never cracked an encrypted Copylock before, I think you're taking on something you won't be able to do, but if you manage it, fair play.

If I can't, there are always other games.

And friendly people here to help.

BlueAchenar · 02 January 2009, 00:44

Are you sure this is encrypted Galahad? It doesn't seem to be, maybe I'm looking at the wrong executables.

Mad-Matt · 02 January 2009, 11:36

When I attempted to slave this game, I just tried to add the patches from the 'amiga patch list' to get past past protection. I never got the game stable (im not that skilled) so no idea if the protection fix worked. I may have been patching the loader instead of main exe, cant remember if I figured how to get slave to patch the right file.

http://www2.hu-berlin.de/angl/people/pdd/amipatch.html

BlueAchenar · 02 January 2009, 12:06

Quote:

Originally Posted by Mad-Matt

When I attempted to slave this game, I just tried to add the patches from the 'amiga patch list' to get past past protection. I never got the game stable (im not that skilled) so no idea if the protection fix worked. I may have been patching the loader instead of main exe, cant remember if I figured how to get slave to patch the right file.

http://www2.hu-berlin.de/angl/people/pdd/amipatch.html

Did you apply the patch to startup.exe? If this patch actually works you just did all the cracking work for me.

Galahad/FLT · 02 January 2009, 12:06

Quote:

Originally Posted by BlueAchenar

Are you sure this is encrypted Galahad? It doesn't seem to be, maybe I'm looking at the wrong executables.

I'm going from memory, was 20 years nearly since I last saw it!

BlueAchenar · 02 January 2009, 12:11

Quote:

Originally Posted by Galahad/FLT

I'm going from memory, was 20 years nearly since I last saw it!

Maybe you're mistaking it with MegaTraveller 2.

I almost completed resourcing startup.exe yesterday and no signs of encryption. Looks like I have a slave to do tonight after work.

From what I've read from WHDLoad docs, I just have to patch the executable to remove the protection and system I/O calls back to the slave. The only thing I still have to see how to do is that "trav" executes "startup.exe" and this last file is the one which needs to be patched and isn't supposed to be run directly. How would I go about patching it without running it and making "trav" execute it after the patch?

BlueAchenar · 02 January 2009, 12:29

How do I submit an Work In Progress entry to the WHDLoad site?

30 December 2008, 23:30	#1
BlueAchenar Not dead yet!!! :D Join Date: Feb 2008 Location: Aveiro / Portugal Age: 42 Posts: 690	Megatraveller slave I'm pleased to announce I'll be working in a WDHLoad slave for "MegaTraveller: The Zhodani Conspiracy" in January, right after (and if) the original disks get to me. It's going to be my first. I'm expecting this to be great fun.

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30 December 2008, 23:47	#3
ppill CON: artist Join Date: Feb 2006 Location: Poland Age: 43 Posts: 1,250	Good luck with it Seems like a nice game.

31 December 2008, 03:25	#11
BlueAchenar Not dead yet!!! :D Join Date: Feb 2008 Location: Aveiro / Portugal Age: 42 Posts: 690	And by the way... do you have the resourced sources to the games you've WHDified?

01 January 2009, 23:30	#12
BlueAchenar Not dead yet!!! :D Join Date: Feb 2008 Location: Aveiro / Portugal Age: 42 Posts: 690	I'm feeling a bit lazy today to work on the new compactflash driver, so I think I'll start working on this with the SPS images. I should have the disks here by next week anyway and lots of other games with no WHDLoad slave to have more fun if I start getting the hang of it.

02 January 2009, 00:44	#15
BlueAchenar Not dead yet!!! :D Join Date: Feb 2008 Location: Aveiro / Portugal Age: 42 Posts: 690	Are you sure this is encrypted Galahad? It doesn't seem to be, maybe I'm looking at the wrong executables.

02 January 2009, 11:36	#16
Mad-Matt Longplayer Join Date: Jan 2005 Location: Lincoln / UK Age: 44 Posts: 1,846	When I attempted to slave this game, I just tried to add the patches from the 'amiga patch list' to get past past protection. I never got the game stable (im not that skilled) so no idea if the protection fix worked. I may have been patching the loader instead of main exe, cant remember if I figured how to get slave to patch the right file. http://www2.hu-berlin.de/angl/people/pdd/amipatch.html

02 January 2009, 12:29	#20
BlueAchenar Not dead yet!!! :D Join Date: Feb 2008 Location: Aveiro / Portugal Age: 42 Posts: 690	How do I submit an Work In Progress entry to the WHDLoad site?

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