Path: utzoo!attcan!uunet!husc6!spdcc!ima!cfisun!lakart!dg
From: dg@lakart.UUCP (David Goodenough)
Newsgroups: comp.os.cpm
Subject: Re: Need help with brain-damaged bdos.
Message-ID: <187@lakart.UUCP>
Date: 27 Jul 88 16:12:50 GMT
References: <9936@e.ms.uky.edu>
Organization: Lake - The systems people
Lines: 27

From article <9936@e.ms.uky.edu>, by simon@ms.uky.edu (George Simon):
> Help!!!
> 	The version of cpm that it is running seems to be < 2.2, and 
> 	the bdos seem to be brain-damaged.
>
> 	(2) Bdos function 6 (direct console i/o) does not exist, but 
> 		the corresponding bios calls work ok.  Other bdos calls 
> 		may be ok, but I trust the bios much more.  The bdos also
							    ^^^^^^^^^^^^^
> 		refuses to return the version#.
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

This may be part of your problem: function 12 (0xc) in V2.0 and higher
gives back the version number - V1.X does not: it appears that you have
a very early version. To verify this try some tests of the random access
routines: if they fail you almost certainly have a pre 2.0 bdos.
 	
> 	Anyone got any other ideas?  I'd love to be able to do double-density,
> 	but I don't know if the WD1771 can do this.  I have heard that 

Sadly the 1771 only talks single density, and I don't know if the 1791 /
1793 would be a dropin replacement.
-- 
	dg@lakart.UUCP - David Goodenough		+---+
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