What is wrong with this post(Idle dos box/giveup time slice)?

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#1319

From: Joakim Hernberg
Date: Sun, 30 Aug 1992 11:26

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 > From: mg@elan (Michael Golan)
 > Organization: Princeton University, Dept. of Computer
 > Science

 > I posted this about 10 days ago. Only got one followup
 > that didnt answer my questions at all.

The preferred way is:

    mov    ax, 1680h
    int    2Fh
;
;Returns:
;
; al = 0   supported
; al = 80h not suppported

Unfortunately this does not work in an image booted DOS session,
the following undocumented inteface has been found though:

    hlt
    dw     0CA35h

Supposedly dx:ax should specify time to sleep, with 0:0
specifying the remainder of the current slice.  I have not
been able to verify this though...

I would appreciate a copy of the results in case someone
investigates this undocumented MVDM interface.

 > [I need a DOS system call, not the on in OS2 API]

Well, how about them apples ;-)

   Joakim Hernberg
   jbh@fido.lu

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From: Joakim.Hernberg@p4.f17.n270.z2.fidonet.org (Joakim Hernberg)
Newsgroups: comp.os.os2.programmer
Subject: What is wrong with this post(Idle dos box/giveup time slice)?
Message-ID: <715294798.F00001@fast.fido.de>
Date: 30 Aug 92 11:26:00 GMT
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