From:	Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Terminate and Stay resident in CWSDPMI
Date:	Tue, 15 Oct 2002 00:26:52 CDT
Organization:	Rice University, Houston TX
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> Did you try v2tk/djgpptsr.zip?  Comment the section on space saving and
> uncomment the line about resetting exceptions, and it will at least build.

Here's a patch to have it work (at least under 2.03):

*** djgpptsr.old        Sun Aug 18 18:36:46 1996
--- djgpptsr.c  Tue Oct 15 00:10:16 2002
*************** short __djgpp_ds_alias;
*** 32,35 ****
--- 32,37 ----
  void __djgpp_exception_setup(void) { return; }
  int __djgpp_set_ctrl_c(int enable) { return 0; }
+ void abort(void) { __exit(-1); }
+ void _exit(int status) { __exit (status); }
  /* End undocumented way to make exception handling disappear */

*************** void int8(void)
*** 41,45 ****
  }

! void main(void)
   {
     __dpmi_regs regs;
--- 43,47 ----
   }

! int main(void)
   {
     __dpmi_regs regs;
*************** void main(void)
*** 54,56 ****
--- 56,59 ----
     regs.x.dx = (256) / 16;            /* paragraphs */
     __dpmi_int(0x21, &regs);
+    return 0;
   }

Someday maybe I'll get around to refreshing the zip, it's only 6 years old ...

> It seems to work fine on Windows 95 & 98; it was tested on DOS some time back.
> It even ran under Windows 2000, but I never saw the cursor change (so
> interrupts aren't getting there?)

Correction - it works on Windows 2000 - sometimes.  The problem seems to be
in the peek/poke of the video buffer which sometimes needs a kick to work
properly.  I've seen this before with symify (it can't find the traceback)
under Win2K.  Sometimes running a DOS app which pokes the video buffer 
wakes it up.  But the TSR portion seems to work just fine (the upper right
hand corner changes background color about once a second).

I didn't try XP, but DOS, Win 95, Win98 and Win2K is a fairly wide range of
platforms to test with.

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