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Index > OS Construction > fasm port to FAMOS now operational

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neville



Joined: 13 Jul 2008
Posts: 507
Location: New Zealand
neville
Oh, ignore that last Q, I've just seen your screenshot which wasn't visible before I logged in...
Post 30 Oct 2008, 19:16
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neville



Joined: 13 Jul 2008
Posts: 507
Location: New Zealand
neville
Hmm, that's weird. It actually looks like its *almost* working Wink
But your CD Boot Catalogue is definitely screwed up somewhere. See how you go with ASN11 as above....

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FAMOS - the first memory operating system
Post 30 Oct 2008, 19:26
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windwakr



Joined: 30 Jun 2004
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Location: Michigan, USA
windwakr
Ya, it says el torito and at 47h it says 14h


Last edited by windwakr on 30 Oct 2008, 22:35; edited 2 times in total
Post 30 Oct 2008, 19:49
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neville



Joined: 13 Jul 2008
Posts: 507
Location: New Zealand
neville
Great, & I'm actually surprised - I thought maybe you didn't have El Torito. So again, are we talking about a real burnt CD here, or not ???

OK so that 14h is actually the last byte of a dword pointing to your Boot Catalogue. I know, its at an odd offset, not even word aligned let alone dword aligned but that's the spec...

So assuming the 14h is followed by 3 00 bytes, now set ASN=14h and ?R again. You should see the root directory of your CD, some of which will be recognisable ASCII. Maybe a screenshot of this would really help here.

I also forgot to include the instructions for the Snoopy game as a text document in FAMOS, so here it is:
Code:
 SNOOPY'S ADVENTURE - FAMOS version by Neville Watkin
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  .----.
                                June 2007           _.'__    `.
 Keyboard controls:                             .--(#)(##)---/#\
 ~~~~~~~~~~~~~~~~~                            .' @          /###\
     Z = walk left                            :         ,   #####
     X = walk right                            `-..__.-' _.-\###/
 Space = walk in (if possible)                       `;_:    `"'
     G = jump (left or right)                      .'"""""`.
     V = pick up / put down object                /,  JOE  ,\
 Enter = use object / display object info        //  COOL!  \\
                                                 `-._______.-'
   Esc = return to FAMOS                         ___`. | .'___
                                                (______|______)


 The Characters:
 ~~~~~~~~~~~~~~
 Snoopy, Woodstock, Charlie Brown, Linus, Lucy, Sally, Pattie, Marcie,
         Schroeder, ... and a cute frog (which Snoopy can out-jump!)


 Objective:
 ~~~~~~~~~
 The objective is to find Linus' blanket and return it to him.  Other objects
 to be found, and somehow used, along the way include:
         slingshot, dog bowl, brick, cookie jar, hosepipe, typewriter,
         letter, pump, umbrella, apple, key, bust, heavy parcel, scissors,
         rubber ring, scorepad, watch, soccer ball, whistle, coin, kite.

   Note: it is possible to catch the frog in the cookie jar!


 Hints:
 ~~~~~
 1. Woodstock tries to help, so follow his lead!
 2. Some objects may have more than one use ...
 3. Keep an eye on the sportsground scoreboard!


 NW    

This will come in handy when (not if ) you get this game going!

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Post 30 Oct 2008, 21:23
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windwakr



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windwakr
No, this is not a real burnt disc, I'm running an .iso in virtual pc


EDIT: pic not needed now.

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Last edited by windwakr on 30 Oct 2008, 22:35; edited 1 time in total
Post 30 Oct 2008, 21:55
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neville



Joined: 13 Jul 2008
Posts: 507
Location: New Zealand
neville
Ok, I've just realised that last post about reading ASN14h is wrong... hang 10, I'll post new instructions in a few minutes...

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Post 30 Oct 2008, 22:13
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windwakr



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windwakr
It looks like it was the iso maker, I switched to freeware program imgburn and I can see all the files in the media access and load them now.
Post 30 Oct 2008, 22:32
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neville



Joined: 13 Jul 2008
Posts: 507
Location: New Zealand
neville
This is strange. I think the problem is to do with the CD "floppy" emulation. Your ASN14h is definitely not a Boot Catalogue - its actually a data sector - the contents of AUTORUN.BAT in fact ... So it's weird that ASN11h seems OK...

So now I know WHAT is happening, but not yet WHY.

Can you give me screenshots of ASN11 (Boot Record Vol Desc) and also ASN10h which has to be the Primary Volume Descriptor? That should help me to see what's going on.

And could you read ASN0 again. It should contain all o's. If not, a screenshot of that might help too.

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Post 30 Oct 2008, 22:35
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neville



Joined: 13 Jul 2008
Posts: 507
Location: New Zealand
neville
windwakr wrote:
It looks like it was the iso maker, I switched to freeware program imgburn and I can see all the files in the media access and load them now.

OK great, good luck with Snoopy!

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Post 30 Oct 2008, 22:41
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