Mail Archives: djgpp-workers/2002/07/20/10:27:42
Hello.
Charles Sandmann wrote:
> The following patch to crt0.S seems to have fixed the problem:
>
> *** crt0.BAK Sun Jun 9 20:14:46 2002
> --- crt0.S Sun Jun 9 20:21:48 2002
> *************** brk_common:
> *** 475,478 ****
> --- 475,479 ----
> movw $0x0900, %ax /* disable interrupts */
> int $0x31
> + cli
> pushl %eax
>
>
> (Line numbers are vs 2.03, but it's just a single line insertion). This
> should be a no op - since the previous line disables and stores the
> previous state in AX; we then restore (enable) them with an equivalent call.
>
> Under Win2K the get interrupt state DPMI call shows the program starts
> with interrupts disabled (but they aren't) - the cli above seems to
> fix win2K's bad behavior when moving the arena but does not break
> win95 for example.
>
> Any comments? We ought to try and build something substantial (like
> emacs) with this fix above to crt0 and see if there is joy in W2K land
> again.
>
> I can't see how this above could break anything.
Unfortunately Emacs seems to bomb out (itself + bash session) under Windows NT
4, when executing this 'cli' instruction. I'm using month-old(ish) Emacs CVS
built against month-old(ish) DJGPP CVS with the above patch. I'm running
Windows NT 4 + SP5 under VMware 3.1.
Bye, Rich =]
--
Richard Dawe [ http://www.phekda.freeserve.co.uk/richdawe/ ]
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