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From: "Charles Sandmann" <cwsdpmi AT earthlink DOT net>
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References: <201304061704 DOT r36H4k48018021 AT delorie DOT com> <c46f36b4-f175-40b5-aeb9-2713a57fab95 AT googlegroups DOT com> <3728e704-b839-4ad6-998e-d3aab686b649 AT googlegroups DOT com> <Roidnc6h2rL7w-rMnZ2dnUVZ_t-dnZ2d AT earthlink DOT com> <12d60e38-9778-4463-b914-396c2a62273f AT googlegroups DOT com>
Subject: Re: ANNOUNCE: DJGPP port of GNU binutils 2.23.2 - stack size
Date: Mon, 20 May 2013 22:54:22 -0500
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>"RayeR" <glaux AT centrum DOT cz> wrote in message 
>news:12d60e38-9778-4463-b914-396c2a62273f AT googlegroups DOT com...
>Aha, so no way under DPMI 0.9 to implement classic grow-down stack?

Not and have it expand and have SS=DS=CS.  If SS can be independent we could 
move it and rebase it, but that breaks the
flat 32-bit model.

>But you can allocate block of memory at specific address range (or not?) - 
>near top of memory.

No, you cannot specify an address in DPMI 0.9 (except when mapping a 
hardware device).  You request a block of a specific size and DPMI 0.9 
returns it (wherever it wants, not necessarily anyplace near where your 
current blocks are).

>I know CWSDPMI support some functionality of DPMI 1.0 but not this?

The issue is that by 1998, about 99% of DJGPP users were using some other 
DPMI provider (mostly in Win95 or Win98), so coding to an enhanced standard 
unsupported by MS was futile.