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[Bug libc/6411] PowerPC: Extend fpu fenv operations to operate on 64-bit FPSCR
- From: "drepper at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 13 Aug 2008 05:33:54 -0000
- Subject: [Bug libc/6411] PowerPC: Extend fpu fenv operations to operate on 64-bit FPSCR
- References: <20080415211350.6411.rsa@us.ibm.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From drepper at redhat dot com 2008-08-13 05:33 -------
(In reply to comment #4)
> I understand your argument but I can't find any published information which
> would indicate that there is anything but a 1:1 correspondence between the
> fpu_control_t and the FPSCR's bits.
That's a non-standard header, there is no documentation. But it's an exported
header. Nobody is supposed to use the values of this type without the
functions/macros in this header. So there is no problem with using a different
representation.
> If this is the case then I'll just use some bits that correspond to the 32-bit
> FPSCR's exception enable bits that are marked 'reserved' in fpu_control.h for
> the DRN (Decimal Rounding control bits).
That is the intend of my comment.
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What |Removed |Added
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Status|ASSIGNED |WAITING
http://sourceware.org/bugzilla/show_bug.cgi?id=6411
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