From:	Charles Sandmann <sandmann AT new-orleans DOT NeoSoft DOT com>
Subject:	Re: DOS memory allocation
To:	iclone!mat AT sloth DOT swcp DOT com (Mat Hostetter)
Date:	Fri, 2 Dec 1994 08:23:29 -0600 (CST)
Cc:	djgpp AT sun DOT soe DOT clarkson DOT edu

> Perhaps _go32_dpmi_simulate_int() should abort if SP is not evenly
> divisible by four?  It's not clear that you ever want an SP *not*
> evenly divisible by four, and that would help catch some uninitialized
> SP bugs.  The overhead for this check is insignificant compared to
> everything else that happens.

Since this is DOS stack in the low memory area, division by 2 is wise
(not 4).  Note!  There are good reasons to provide your own
stack - if the call needs more than 30 words of stack space you must
provide your own stack (DPMI specification requirement).

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