From: michael DOT mauch AT gmx DOT de (Michael Mauch)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: To RHIDE author...
Date: Sun, 26 Oct 1997 16:42:18 +0100
Organization: Gerhard-Mercator-Universitaet -GH- Duisburg
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On Sat, 25 Oct 97 12:44:59, "sl" <back AT you> wrote:

> 	I have been using RHIDE under OS/2 for a while now.. I have noticed
> to even when I give RHIDE the lowest cpu possible (IDLE_SECONDS=0,
> IDLE_SENSITIVITY=1) it will use 100% of my cpu slowing all other tasks to a
> halt. Turbo C++ uses up 5% of my cpu at best when I use it.. Is it possible
> for you to please make RHIDE "multitasking friendly"? While the user does not
> push a button you could use RELEASE_TIMESLICE() of some sort.. Please reply,

You are asking for permission to port the Linux version of RHIDE to OS/2
in your other posting - is that just to solve this problem?

If yes, at first please try inserting a call to __dpmi_yield() in the
rh_kbhit() function of the DOS version, it's in the file
tvision/gkey.cc:

int rh_kbhit()
{
  __dpmi_yield();  // new
  if (use_real_keyboard_bios)
    return kbhit();
  else
    return (_farpeekw(_dos_ds, 0x41a) != _farpeekw(_dos_ds, 0x41c));
}

Calling __dpmi_yield() before kbhit() works fine under Win95, maybe it
works fine under OS/2 as well.

Regards...
		Michael