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Mail Archives: djgpp/2009/05/14/20:15:48

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From: "Charles Sandmann" <cwsdpmi AT earthlink DOT net>
Newsgroups: comp.os.msdos.djgpp
References: <83zldveryw DOT fsf AT gnu DOT org> <684bdd55-b464-4e61-b28e-28774dc6ced8 AT o27g2000vbd DOT googlegroups DOT com> <83y6tfem02 DOT fsf AT gnu DOT org> <_ZKdnV74euw2-2HUnZ2dnUVZ_uednZ2d AT earthlink DOT com> <83ws8zeb05 DOT fsf AT gnu DOT org> <Z4adna6AJcyQeWDUnZ2dnUVZ_t-dnZ2d AT earthlink DOT com> <d5126d62-422a-4cdd-989e-96fa0f99359a AT h23g2000vbc DOT googlegroups DOT com> <83skjldt35 DOT fsf AT gnu DOT org> <58b10f6a-eba5-4cc2-bef8-cc5fc4251e06 AT q2g2000vbr DOT googlegroups DOT com> <83fxfkdz2n DOT fsf AT gnu DOT org> <000b187c-f14b-4f37-81ca-0d93f4e1b2e1 AT g20g2000vba DOT googlegroups DOT com> <83eiv3e71o DOT fsf AT gnu DOT org> <Pine DOT LNX DOT 4 DOT 60 DOT 0905140216470 DOT 1746 AT dynamite DOT narpes DOT com> <b557d9b0-953a-4fa1-8c30-e46ec40f4943 AT r13g2000vbr DOT googlegroups DOT com>
Subject: Re: Please help resurrecting GDB for version 7.0 release
Date: Thu, 14 May 2009 19:04:17 -0500
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

>"Rugxulo" <rugxulo AT gmail DOT com> wrote in message 
>news:b557d9b0-953a-4fa1-8c30-e46ec40f4943 AT r13g2000vbr DOT googlegroups DOT com...
>How are you supposed to know that SSE is enabled? Either run, crash,
>recover ...

Establish error handler, try instruction, on fault you know it's
not legal, set flag, etc.  Really very easy to implement.

>I wish I was smart enough to make DJGPP (EMU387.DXE, perhaps?) emulate
>the CMOV.. instructions.

If you look at libc, and the interface to emu387, you could easily
implement this (probably all from C).  Contact me offline if you
need technical assistance.



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