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Index > Windows > FPU preserved

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daluca



Joined: 05 Nov 2005
Posts: 86
daluca 14 Jan 2013, 22:38
Hi!
Is the state of the FPU preserved across Threads or tasks?
I mean, if I set a particular rounding mode for the FPU at the begining of my program(single thread),and I don't change it.
can I be sure that is not changed by windows or another program?

thanks!
Post 14 Jan 2013, 22:38
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HaHaAnonymous



Joined: 02 Dec 2012
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HaHaAnonymous 14 Jan 2013, 23:16
[ Post removed by author. ]


Last edited by HaHaAnonymous on 28 Feb 2015, 21:59; edited 1 time in total
Post 14 Jan 2013, 23:16
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
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revolution 15 Jan 2013, 10:21
daluca wrote:
Is the state of the FPU preserved across Threads or tasks?
I mean, if I set a particular rounding mode for the FPU at the begining of my program(single thread),and I don't change it.
can I be sure that is not changed by windows or another program?
Yes, of course it is fully preserved. If not then almost no program could work correctly.
Post 15 Jan 2013, 10:21
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