Path: utzoo!utgpu!watserv1!watmath!att!rutgers!ucsd!ucbvax!pnet01.cts.com!cwr
From: cwr@pnet01.cts.com (Will Rose)
Newsgroups: comp.os.cpm
Subject: ZCPR/ZDOS
Message-ID: <00939B874B0B7A00.00000111@dcs.simpact.com>
Date: 16 Jul 90 01:07:20 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 57

This is in response to Jay Sage's recent reply to Will Rose's recent message.
 
>>> I decided the best way to play it was to move the BDOS down, and put the
>>> ZCPR buffers between the BDOS and BIOS.
 
>>   Even if you could figure out how to do this, it does not result in the
>>best solution.  There are quite a few CP/M programs that calculate addresses
>>on the assumption that the BDOS is 0E00H below the BIOS entry point.  They
>>will fail after you have made your modification.
 
Thanks - just as well I didn't continue...  Where do you put the buffers,
then - under the fixed memory area and above the BIOS?  I passed on that one,
because I couldn't see how to move the BIOS.
 
>>> However, I couldn't find out how (where) the QX10 kept the location of
>>> the BDOS for use in eg. the  warm-boot code;
 
>>   Is it not kept on the system tracks of the diskette the way it is on
>>other CP/M computers?
 
Yes, but there are a lot of bytes out there, many of them different...
 
>>> I recently got a price for the current ZCPR/ZRDOS to run on a QX-10 from
>>> Jay Sage's company (~$140 total) and decided it just wasn't cost
>>> effective.  If you ran the new ZCPR with NOVADOS (is that possible?) it
>>> would only cost you ~$75; pricey, but might be worth it.
 
>>   There was apparently a major misunderstanding here.  The cost of NZCOM is
>>$70, and that provides a COMPLETE, automatically installing, and fully
>>reconfigurable (statically and dynamically) Z-System, INCLUDING the ZRDOS
>>disk operating system replacement code.
 
I should have said 'the current ZCPR/ZDOS  ... ($130 plus tax and postage
where applicable)'.  I use ZRDOS 1.7, and consider it a step back from CP/Ms
BDOS - I'm very tired of 'ZRDOS error no. ??' messages.  I  should have said
it auto-installed, too - sorry.
 
>>   The finest replacement DOS, in my opinion, is ZDOS (the ZSDOS/ZDDOS pair
>>of datestamping DOSs).
 
True - if you're upgrading, this is the one to have.  I very much want date-
stamping.  The Z-system would be especially useful, I imagine, on the Amstrad
(since this machine is also under discussion).  I never did like CP/M 3.0;
seems awkward to use somehow, tho' there's a lot of power in there.

Good luck - Will
 
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