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Re: Inline assembler fallback for _FPU_SETCW() missing in MINGW librarie


From: Thomas Morley
Subject: Re: Inline assembler fallback for _FPU_SETCW() missing in MINGW libraries (issue 577450043 by address@hidden)
Date: Sat, 1 Feb 2020 15:58:48 +0100

Am Sa., 1. Feb. 2020 um 12:39 Uhr schrieb David Kastrup <address@hidden>:
>
> Dan Eble <address@hidden> writes:
>
> > On Feb 1, 2020, at 05:05, David Kastrup <address@hidden> wrote:
> >>
> >> Frankly, I think that it would be better if our Windows executables just
> >> moved to 64bit but that seems like the more complicated option yet. And
> >> 32bit systems kept around a whole lot longer even after processors
> >> became 64bit-capable because they tended to require less memory.
> >
> > You provided a lot of good information in your post, but the
> > conclusion was not entirely clear.
> > Are you suggesting requiring SSE2 at this time?
>
> Yes.  It appears to get used anyway for 64bit executables, and it seems
> safe enough to demand it for 32bit executables.
>
> For SSE there would be the danger of libraries stomping over the
> registers that share memory with the FPU stack, but I think that SSE2 is
> not affected.
>
> --
> David Kastrup
>

Well, Arnold encountered the problem (iirc he will not be online
during the weekend) and there may several other older 32-bit OS
around.
What shoud those people do?

Cheers,
  Harm



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