Message-ID:	<390DBE89.2BA84777@nortelnetworks.com>
Date:	Mon, 01 May 2000 13:27:37 -0400
X-Sybari-Space:	00000000 00000000 00000000
From:	"Ian Chapman" <ichapman AT nortelnetworks DOT com>
Organization:	Nortel
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Newsgroups:	comp.os.msdos.djgpp
To:	djgpp AT delorie DOT com
Subject:	Re: 3rd Try: Maybe an asm problem? (Problems linking)
References:	<Pine DOT SUN DOT 3 DOT 91 DOT 1000501192424 DOT 11979G AT is>
Reply-To:	djgpp AT delorie DOT com

Hi all,
	this thread is a bit above the level that I think about.  If I have:
cin >> buf; // do I need to worry about __dpmi_yield?

	I guess it should be used by people writing cin type functions not
users.

		Regards Ian.

Eli Zaretskii wrote:
> 
> On Mon, 1 May 2000, Alexei A. Frounze wrote:
> 
> > Okay, why not to freeze up DOS programs, due to task switch (it's possible to
> > know when a task switch occurs)?
> 
> When the task switch occurs, you don't need to do anything, because the
> CPU is taken away from the DOS program.
> 
> __dpmi_yield is used when the calling program *does* have the CPU, but
> doesn't have anything to do with that CPU time.

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