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Message-ID: <alpine.LRH.2.02.2002080807590.3230@key0.esi.com.au>
Date: Sat, 8 Feb 2020 08:25:43 +1100 (AEDT)
From: Damian McGuckin <damianm@....com.au>
To: musl@...ts.openwall.com
Subject: Re: Considering x86-64 fenv.s to C
In considering an i386 architecture with XMM capability, there is an issue
with fegetenv()/feholdexcept() and fesetenv()/feupdateenv().
There is no __mxcsr field in the fenv_t structure.
So, there is no way to return the MXCSR using the first pair.
Do I just bury any MXCSR exceptions into the __status_word?
Regards - Damian
Pacific Engineering Systems International, 277-279 Broadway, Glebe NSW 2037
Ph:+61-2-8571-0847 .. Fx:+61-2-9692-9623 | unsolicited email not wanted here
Views & opinions here are mine and not those of any past or present employer
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