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Subject: Re: secret DJGPP documents?
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From: "Frank Sapone (emoaddict15 AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
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Date: Sun, 11 Oct 2015 13:16:56 -0400
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> 2) Under W95 they could not reliably get the 12MB(?) of memory they 
> needed,
>    on a 16MB system if it had been running a while, so I provided them 
> a hack
>    to page out other applications so they could lock the memory 
> required.   It was
>    a stupid little thing about how W95 didn't follow DPMI 
> expectations, frustrated
>    them for weeks (commercially they must run on 16MB system, many 
> systems
>    were architecturally limited to 16MB at the time).   It took me 
> about an hour
>    to develop a workaround.
Interesting, so the page in code is yours in Quake 1 (but possibly 
slightly tweaked)?
> 5) The ring 0 version of CWSDPMI was developed specifically for id.   
> They wanted
>    to use features of the newly released Pentium chips to time certain 
> sections of
>    their code (performance tuning).   This was required during 
> development but the
>    code, but was not needed for running.
My only other thought on it was specifically to avoid swap file access 
as well since Quake 1 avoids that entirely... or makes an effort to.
>
>> Is any of the correspondence saved?
>
> Someplace on all the stacks of backup media, I think every email I 
> have ever
> exchanged is stored someplace.  In the mid-90s I was using both the clio
> email address and one from my dial-up isp at the time neosoft. But
> digging through old media is not high on my current priorities.
I know it may be years (or never) but if you ever get around to this 
please email me or call out to me on here as I am very interested in 
id's development history.
>
>> I read some more ancient threads from Quake's heyday on here and it 
>> appeared that they wanted a Ring-0 version of CWSDPMI and some stuff 
>> with nearptrs.
>
> All correct.   I refused to be compensated for this (incompatible with my
> job terms at the time), but they figured out a way to say thanks that I
> would not refuse :-)
>
> (They shipped me a huge monitor and one of their P60 systems they
> replaced with a P90.  I was not going to spend several hundred $ to
> ship it back to them.   The monitor alone was around 80 lbs.  It was
> a huge surprise one day when I came home from work).
What kind of monitor?  I saw Carmack was using a huge 28" CRT somewhere 
around this time.
>
> Just yesterday we found the original Quake CD they sent me; my son
> had borrowed it about 10 years ago and it was in a stack of stuff being
> tossed out.
Was this is a regular Quake 1 retail CD or was it specifically different?

Thanks for the reply!
Frank