Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by Linards Ti » Sat, 23 Sep 2006 05:20:06


Hello,

Speaking of the Infocom games, I wonder if anybody has already
deciphered the nibble format that they used on the back side of the disk
for the Apple versions of their V4 and later games.

It's obviously a "one giant sector per track" format, not for copy
protection (which Infocom generally did in the form of package contents
that were needed to solve the game), but for getting more bytes onto
that disk surface.

It would be nice if one could create disk images of their V4, V5 and V6
games from an interpreter and a game file just like it's possible for V3.

--
Linards Ticmanis
 
 
 

Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by Andy McFad » Sat, 23 Sep 2006 13:18:11


It was easier to buy the "Lost Treasures" collections -- for the Apple II
or the PC -- and get the data files that way.

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Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by heuser.mar » Sat, 23 Sep 2006 23:11:56


Some years ago I bought the Masterpieces Collection for the PC, which
included all games excluding HHGTTG and Shogun (for copyright reasons).
It was published by Activision as a last hooray to milk some money from
the licence.

Complete documentation including manuals, maps and hints as PDF's.

Highly recommended for completists or people not being able to buy the
original games.

bye
Marcus
 
 
 

Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by Linards Ti » Sun, 24 Sep 2006 06:39:52


Hello Andy,

I didn't even know that Lost Treasures was released for Apple II as
well, I only knew the PC versions.

Did the Apple version come on floppies (if yes, which format?), or was
it a CD-ROM?

--
Linards Ticmanis
 
 
 

Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by Sean Fahe » Sun, 24 Sep 2006 06:46:21


Floppies, several.
 
 
 

Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by Andy McFad » Sun, 24 Sep 2006 07:26:51

ean Fahey < XXXX@XXXXX.COM > wrote:

I believe this is Lost Treasures volume 1:

Disk: ProDOS /Infocom2 (800KB)
Name Type Auxtyp Modified Format Length
------------------------------------------------------------------------------
*ZORK.I $F5 $8003 16-Jun-93 15:01 ProDOS 84992
*ZORK.II $F5 $8003 16-Jun-93 15:01 ProDOS 90112
*ZORK.III $F5 $8003 16-Jun-93 15:01 ProDOS 82944
*BEYOND.ZORK $F5 $8005 16-Jun-93 15:07 ProDOS 261388
*HITCHHIKER $F5 $8005 16-Jun-93 15:10 ProDOS 158413
Finder.Data FND $0000 22-Jun-93 09:38 ProDOS 155
------------------------------------------------------------------------------

Disk: ProDOS /Infocom3 (800KB)
Name Type Auxtyp Modified Format Length
------------------------------------------------------------------------------
*PLANETFALL $F5 $8003 16-Jun-93 11:18 ProDOS 109400
*STATIONFALL $F5 $8003 16-Jun-93 11:18 ProDOS 128936
*ENCHANTER $F5 $8003 16-Jun-93 14:59 ProDOS 111127
*SORCERER $F5 $8003 16-Jun-93 14:59 ProDOS 108683
*SPELLBREAKER $F5 $8003 16-Jun-93 11:18 ProDOS 128918
*MOONMIST $F5 $8003 16-Jun-93 11:18 ProDOS 128868
*STARCROSS $F5 $8003 16-Jun-93 11:18 ProDOS 83969
Finder.Data FND $0000 22-Jun-93 09:39 ProDOS 200
------------------------------------------------------------------------------

Disk: ProDOS /Infocom4 (800KB)
Name Type Auxtyp Modified Format Length
------------------------------------------------------------------------------
*DEADLINE $F5 $8003 16-Jun-93 11:18 ProDOS 108545
*WITNESS $F5 $8003 16-Jun-93 15:01 ProDOS 104664
*SUSPECT $F5 $8003 16-Jun-93 15:01 ProDOS 118693
*BALLYHOO $F5 $8003 16-Jun-93 14:59 ProDOS 128557
*SUSPENDED $F5 $8003 16-Jun-93 11:18 ProDOS 105985
*INFIDEL $F5 $8003 16-Jun-93 14:59 ProDOS 93696
*HORROR $F5 $8003 16-Jun-93 14:59 ProDOS 128987
Finder.Data FND $0000 22-Jun-93 09:42 ProDOS 185
------------------------------------------------------------------------------

There were two versions of the player; one could handle v5 games but (IIRC)
was more limited in other ways. Note the aux types are $8003 or $8005.

From /Infocom1:

*Lost2.sys16 S16+ $DB03 21-Jun-93 15:56 ProDOS 91518
*Lost1.sys16 S16+ $DB03 21-Jun-93 11:03 ProDOS 86833

I don't think there was a Lost Treasures 2 for the Apple II, but all you
had to do was buy it for another platform and copy the data files over.
Here's what I have on my hard drive (note the files are compressed
with HardPressed, so the sizes and file types are different):

_FUN:Games:Infocom DIR $0000 30-Sep-00 17:12 ProDOS 2048
_FUN:Games:Infocom:InfocomPro TXT $0000 19-Jan-92 18:59 ProDOS 5461
_FUN:Games:Infocom:InfoLoad SYS $2000 27-Jul-9
 
 
 

Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by russott » Sun, 24 Sep 2006 12:54:40

In article <4512f3f2$0$18495$ XXXX@XXXXX.COM >,


Once you know that, you pretty much know it all, except for the
interleave. Each track has 18 data fields (including the d5/aa/ad
and de/aa/eb). I believe they are uninterleaved, but I'm not sure. I
think there's already a program on the IF-archive to read them off a
.nib image; I know I wrote one at one point, which may or may not be
the one in the archive.
 
 
 

Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by Linards Ti » Fri, 29 Sep 2006 06:59:34


Thanks Matthew, I assume you mean "zcut". Yes, your code is there. I'll
see what I can do with it.

Best wishes,
--
Linards Ticmanis
 
 
 

Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by Linards Ti » Fri, 29 Sep 2006 07:02:19


Thanks Andy... looks though like these aren't really 5.25-friendly, as
they're too big to fit on one disk together with the game file.

(Yes, up till now I've been to cheap to get a CFFA card.)
--
Linards Ticmanis
 
 
 

Infocom V4+ nibble format (was 80 Cols. In Apple II Infocom Games)

Post by Andy McFad » Fri, 29 Sep 2006 14:33:51


See the InfoLoad/InfoSnarf stuff -- it's meant for playing the games
under ProDOS 8. Basically it can pull a copy of the Infocom interpreter
off, as well as the game.

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