This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: Processor-specific code

From: Robert Dewar <dewar at adacore dot com>
To: Richard Earnshaw <rearnsha at gcc dot gnu dot org>
Cc: Richard Henderson <rth at redhat dot com>,François-Xavier Coudert <Francois-Xavier dot Coudert at lcp dot u-psud dot fr>,Steve Kargl <sgk at troutmask dot apl dot washington dot edu>, fortran at gcc dot gnu dot org,gcc at gcc dot gnu dot org
Date: Fri, 15 Apr 2005 09:50:05 -0500
Subject: Re: Processor-specific code
References: <425E80A2.2060104@lcp.u-psud.fr> <20050414145534.GA29477@troutmask.apl.washington.edu> <425E8BD4.7060208@lcp.u-psud.fr> <20050414173506.GB21378@redhat.com> <1113575977.20842.2.camel@pc960.cambridge.arm.com>

Richard Earnshaw wrote:

Not all environments can change the rounding mode dynamically.  For
example, on the FPA co-processor for ARM, rounding is set by the
instruction selected -- so the concept of having an environment variable
to control this is meaningless.


Right, such a feature obviously does not apply to hardware that is this
far from the IEEE standard (which requires dynamic control). The Alpha
architecture has similar problems.

Follow-Ups:
- Re: Processor-specific code
  - From: Richard Earnshaw

References:
- Processor-specific code
  - From: FranÃois-Xavier Coudert
- Re: Processor-specific code
  - From: Steve Kargl
- Re: Processor-specific code
  - From: FranÃois-Xavier Coudert
- Re: Processor-specific code
  - From: Richard Henderson
- Re: Processor-specific code
  - From: Richard Earnshaw

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]