Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!hao!gatech!purdue!i.cc.purdue.edu!j.cc.purdue.edu!pur-ee!iuvax!franco
From: franco@iuvax.cs.indiana.edu
Newsgroups: comp.sys.atari.st
Subject: Re: ETRNL2 and new roms
Message-ID: <36500035@iuvax>
Date: 24 Feb 88 13:44:00 GMT
References: <432@cvaxa.sussex.ac.uk>
Organization: Indiana University CSCI, Bloomington
Lines: 39
Nf-ID: #R:cvaxa.sussex.ac.uk:432:iuvax:36500035:000:1757
Nf-From: iuvax.cs.indiana.edu!franco    Feb 24 08:44:00 1988


I can probably fix ETRNL2 to work with the new ROMS but I need
the following information to do so:

   1.  What are the locations of phystop, _memtop, drive_bits, _membot,
       hdv_BPB, hdv_rw, hdv_mediach

   2.  Have any changes been made to _kbshift ($B of TRAP $D)?  If so,
       what?  Is the bit vector the same?

If I get this info I will try to assemble a new ETRNL2 and send it to
people to test. 

Bonus:
   The new ETRNL2 will have a bug fixed: the first version did not
   clear the FAT and Root Directory when resizing so resizing downward
   according to the instructions given sometimes causes strange files 
   and folders to appear.  This is fixed in all but the first version 
   I posted and the new ETRNL2 will behave properly in this regard as 
   well.

   I put in a real media change option - this was a result of a program
   I wrote to dump a series of floppies to the RAMDISK on bootup.  I
   found that folders were unknown to the system without a media change
   on the "hard-drive" (so here seems to be another case for having
   hard disk media changes).  This media change option, by the way,
   can probably be used for hard-drives as well as the ramdisk without
   modification (I am not sure about the modification being unnecessary
   since I do not have the code in front of me).  However, to use it, 
   one must force the media change from software.  Thus, to do the 
   media change one must actually run a program to set a bit in the 
   ramdisk drivers (of course this can be done from a program for 
   checking free space etc. so the penalty won't look so bad).

Please send system info requested above to:

franco@iuvax.cs.indiana.edu

Please respond only if you really know the answers to the questions.