Is there such thing as a STOS packer?

STOS-related stuff in here please

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Is there such thing as a STOS packer?

Postby Heavy Stylus » Fri Nov 09, 2007 9:58 am

Klaz has been helping me to unpack some old PD games (most recently 'Slug') that he's identified as being packed by an 'unidentified' packer - i.e. one that isn't recognised by any depacking programs commonly available (Naughty Depacker, New Depacker, Pompey, etc.).

Klas has suggested that they may have been compressed using a special 'STOS Packer'... Has anyone heard of this? If so, any information on how to depack these files would be appreciated. (It'll save me asking Klaz to unpack the programs 'by hand' instead!)

Thanks in advance - James.
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Postby SkylineDave » Fri Nov 09, 2007 6:23 pm

indeed a STOS Packer was released, although im not sure whether it was commercial or PD. either way, it wasn't as good as the mainstream packers out there.
(in fact if i recall correctly wasnt STOS Packer an extension that allowed you to pack/unpack in code? furthermore didn't Yomo use this functionality?)
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Postby Heavy Stylus » Fri Nov 09, 2007 7:26 pm

OK - so now I know it exists, the question remains... is there away to unpack STOS packed programs?
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Postby Mug UK » Fri Nov 09, 2007 10:51 pm

After a quick perusal of the version you sent me H.S. It doesn't seem packed at all. All the text is viewable (and there's a lot of it!), as are the bitmaps etc.

As mentioned in the PM I sent to you with my findings, it might not be "unpackable" to patch it for STOS v2.06 because it's already been patched by some other tool from Goodman's PD library (STOSFIX3). This might fool the STOS patching tool that you're trying to use over the top of it.

What's needed here is a tool to recognise and "undo" the work that has been done by STOSFIX3 so that GENFIX can be used instead? Only my theory though.
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Postby Heavy Stylus » Sat Nov 10, 2007 2:33 am

Sob :cry:

Where the feck am I going to find something that can undo the damage caused by STOS 'Fix' 3...
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Postby exxos » Sat Nov 10, 2007 5:48 pm

There was STOS squasher which was an extension. Though it compressed mbk banks.

AFAIK, there was 2 versions of STOS FIX, one pumped all of the tables for all tos versions (14 I think?) the other one allowed you to just patch 4 of them. I think the prg files only had space for 4 tables, something like tos1.0, 1.2,1.4,1.6..

Not really sure what your exact problem is but stosfix should be able to defualt the tables back to ST ones. Or patch the prg to all 14 tos tables. It has been years since I used it so can't exactly remember.

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Postby Mug UK » Sun Nov 11, 2007 9:29 am

As a continuation of the above theory .. what's needed is a couple of "before & after" examples of STOSFIX3. I.e. get a non-patched STOS program, patch it with STOSFIX3 into a new file and then compare the original and the patched one.

Then a "de-fixer" can be worked on - again, in theory as it all depends on how much tweaking is done to the STOS .PRG file.
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