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 10 Games that work without patching (Read 660 times)
ggn
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Games that work without patching
28.02.07 at 16:41:35
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Because today I tried to falcon fix games that seem to work without any patching whatsoever, I got the idea for this thread Smiley

Naturally, some (all?) of you have tried to run one game or another on Falcon without any tinkering required. What I have in mind is for you to share your experience with us, so we can possibly speed up and not do any uneccesary work Smiley

If you decide to post, please mention the hardware you used to run the game (falcon, mste etc), and if you tried it on a hard drive.

I'll make a start with Ultima 6 (found in D-Bug menu #58), which runs just by copying the files to your hard drive. (of course you have to install it to 4 disks first).

I'll test the other games I tried today and will report back with the results.

In the meantime I await your input Smiley
  
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CJ
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Re: Games that work without patching
Reply #1 - 28.02.07 at 18:12:48
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If we find any that work imemdiatly, should we re-package them in a future fixpack as an extractable folder?  We should definatly remove the colourflash on depack for them I think.

What do you all think?
  

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ggn
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Re: Games that work without patching
Reply #2 - 16.03.07 at 13:41:58
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So.... either none has read this thread, or hasn't tried playing games on the Falcon at all, or noone is interested/bothered to post.
Interesting.....
  
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karlm
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Re: Games that work without patching
Reply #3 - 22.03.07 at 22:57:04
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hang on GGN, doing testing for you:

Tried some old ones last night... A-HA's crack of Livingstone I Presume works no probs, PENGY works but the pallette is screwed, but mind you I was running it from vga mode true color, I will try some more ...

Nostalgia comes flooding in Smiley

Oh - did you only want Automation/Was Not Was/DBug/LSD cracks only?

cheers

karlm
  
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ggn
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Re: Games that work without patching
Reply #4 - 23.03.07 at 11:19:40
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Thanks Karl!

Well, TBH we really want to use our content, but there are some games that haven't been featured on either Automation or D-BUG menus. In fact I recently discovered some old falcon fixes by 3rd parties!

To summarize: If a game works simply by copying it to a hard drive and double clicking on it, just mention it here. If it's on Automation or D-Bug menus, even better Smiley
  
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karlm
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Re: Games that work without patching
Reply #5 - 26.03.07 at 04:41:09
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no problems then Smiley

how is SHW progressing with the Uber Automation CD btw?

cheers

karlm
  
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ggn
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Re: Games that work without patching
Reply #6 - 26.03.07 at 07:04:22
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karlm wrote on 26.03.07 at 04:41:09:
no problems then Smiley

how is SHW progressing with the Uber Automation CD btw?

cheers

karlm


While I can't speak for him, I think that this post might enlighten you a bit.
  
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karlm
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Re: Games that work without patching
Reply #7 - 28.03.07 at 02:26:31
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ggn - you got a prog for depacking the old LSD packer stuff?  been trying some more games and they seem to fail on the depack..... oh yeah NewDepack sees them but doesn't recognise the packer...

cheers

karlm
« Last Edit: 28.03.07 at 02:27:14 by karlm »  
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ggn
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Re: Games that work without patching
Reply #8 - 28.03.07 at 06:37:16
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karlm wrote on 28.03.07 at 02:26:31:
ggn - you got a prog for depacking the old LSD packer stuff?  been trying some more games and they seem to fail on the depack..... oh yeah NewDepack sees them but doesn't recognise the packer...

cheers

karlm


Well, on some automation menus the files seem to have been specially treated not to have the well known 'LSD!' header. So, you've got 2 ways to get past this:

a) Use the lsd depacker routine with your own shell and skip the header testing
b) Write a small utility that loads a file and adds the 4-byte 'LSD!' header and then saves it.

A third solution might be tinkering with New depack itself to ignore the header, but that would be pretty dangerous Smiley
  
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CJ
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Re: Games that work without patching
Reply #9 - 28.03.07 at 08:39:41
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Hi Karl! Welcome to the wonderful world of Falcon Patching!

Unpacking the files won't work for a couple of reasons.

(1) The trap #1 handler used for the ST wont work on the falcon (The stack frame is 2 bytes out, so it'll give address errors)

(2) Quite a lot of files are what we called "offset packed" - mostly .neo or .pi1 files.  Quite a lot of .pi1 files are read in 2 stages... read the first 34 bytes, then read the 32000 for the screen data.  Quite often just the 32000 bytes are packed.

In any case let us know how you get on!
  

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ggn
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Re: Games that work without patching
Reply #10 - 28.03.07 at 10:29:45
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Oh yes, now that CJ mentioned (1)....

The games that install a trap #1 handler (hmm, I think we should write some stuff about those in the hacking/coding section) usually call the real program after they're done. So, if you unpack the game and locate what file the loader is trying to execute (usually this can be found easily using a hex editor), then you can rename that to .prg (because it usually isn't) and try running it.

If the game was written cleanly (using the OS to reserve memory instead of using fixed addresses) then the game will work right away. Most likely those games are written in a higher level language like basic, modula, C (with asm routines) and so on.

Happy hunting, and don't hesitate to mention a game's name here... who knows, it might be in our WIP folders Smiley
  
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karlm
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Re: Games that work without patching
Reply #11 - 30.03.07 at 03:46:05
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thanks guys I thought it was as simple as that for the depack rout just wasn't sure what Ozz and the others had been buggering around with Smiley

I was just messing about initially with the single parted files, these will be a lot easier to test Smiley  If the depack rout fails, I can always try it on my ST or STe, so not a problem.

I guess if push comes to shove I could load the file into MonST, let it depack and then save out the depacked file ... but then I'm pusing into boundaries I forgot long ago Smiley

cheers

karlm

  
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ggn
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Re: Games that work without patching
Reply #12 - 30.03.07 at 06:58:50
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Hey Karl,

Single parted games are not your average programs that are packed using a executable file packer like ice or jam packer.

This is due to the philosophy applied to crack the game. Usually the game was loaded in memory (old games were loaded in 1 go), the protection was bypassed and then the memory was dumped to disk. Then the data was packed. All it was needed then was to write a small program that unpacked the data in the correct memory place, apply some patches (if needed), and then jump to the entry point of the game.

Now, why doesn't this work on Falcon?

Pretty simple really. To get the game work even in 1/2 meg machines, the game was loaded as low in memory as possible. Now, TOS on STF/Ms had a fairly low memory footprint, so you could easily load a game from $a000 or even lower AND still have access to all O/S calls (which older games were some times in need). When the STE came out, the memory footprint was slightly higher, so some games didn't work at all (I had to patch Zany golf and Predator myself for STE compatibility). The Falcon tends to have a fairly bigger footprint, and add to that the memory needed by the hard disk driver (which, in case of HDDriver or Cecile can be QUITE large!), and you have games that die on load! Oh, I forgot to mention that the loaders assumed they were loaded low in memory, so they can produce garbage while unpacking (imagine the loader starting at $12000 and unpacking 300k starting from $11000 Smiley ).

If I have some time over the weekend (grumble... release... mumble... fix pack... sigh...) I'll publish my standard routines that handle all these, along with some extra Falcon magic stuff Smiley (and explain them of course Cheesy )
  
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Snoopy
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Re: Games that work without patching
Reply #13 - 18.07.07 at 19:14:34
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Hi Dbug

Hardware used: 4MB Falcon 030 + Hard Disk

------------------------------------------------------
Batman (1mb) Pompey Pirates Disk 18
+ menu works
Works from Floppy, 'Playable'
doesn't appear to complete run from Hard Drive.
VGA slight flicker at base of playscreen
RGB Music but no SFX!
------------------------------------------------------

Jimmy White's Whirlwind Snooker (Works!)
- BBC/Medway Boys no menu (Hunter,Dragon Tower) on disk
Runs from floppy 'Playable'
Run from Hd, checks floppy for game save disk and runs if floppy present.'Playable'
------------------------------------------------------
Pro Powerboat Sim CodeMasters
Original, loads, runs until end of 1st level.
-----------------------------------------------------
Rainbow Islands, Pompey Pirates #26
loads until screen 'Cracked by Alien' Looks promising till then!
'Playable' under Backward, though not well on my VGA!
------------------------------------------------------
DISC - Loriciel - Cracked 1 disc
works under backward!
--------------------------------------------
Atari Power pack disk J - Bombuzal - Runs from floppy (030)
-----------------------------------------------------
Arkanoid + Joe Blade
Both 'Playable' from Floppy
L-S-D menu # ? runs from menu, doesn't appear to work renaming .LSD to either       .Tos or .PRG
---------------
Moonshine Racers - Backward best compatibility - runs
_________
Nigel Mansell's Grand Prix (demo) F030 runs

enjoy
Shocked)
Snoopy

« Last Edit: 15.11.07 at 20:21:41 by Snoopy »  
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ggn
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Re: Games that work without patching
Reply #14 - 19.07.07 at 06:29:07
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Snoopy wrote on 18.07.07 at 19:14:34:
Hi Dbug
Batman (1mb) Pompey Pirates Disk 18
+ menu works

doesn't appear to complete run from Hard Drive.
VGA slight flicker at base of playscreen
RGB Music but no SFX!

Jimmy White's Whirlwind Snooker
- BBC/Medway Boys no menu (Hunter,Dragon Tower) on disk
Runs from floppy
Run from Hd, checks floppy for game save disk and runs if floppy present.


Well, I don't have too much high hopes that games from CD menus will run, mostly because the games are packed there.

Snoopy wrote on 18.07.07 at 19:14:34:
Pro Powerboat Sim CodeMasters
Original, loads, runs until end of 1st level.


Could be a protection check there.

Snoopy wrote on 18.07.07 at 19:14:34:
Rainbow Islands, Pompey Pirates #26
loads until screen 'Cracked by Alien' Looks promising till then!


Yeah, this is a right bastard to get working unfortunately...

Snoopy wrote on 18.07.07 at 19:14:34:
New Zealand Story - Hit Squad
Loads loading screen!


You mean it crashes on loading?

Snoopy wrote on 18.07.07 at 19:14:34:
enjoy
Shocked)
Snoopy


Thanks Smiley
  
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