From: Dave Brolley <brolley@redhat.com>
To: Joern Rennecke <joernr@arc.com>
Cc: cgen@sources.redhat.com
Subject: Re: subword semantics
Date: Fri, 19 Jan 2007 15:30:00 -0000 [thread overview]
Message-ID: <45B0E3FA.2090801@redhat.com> (raw)
In-Reply-To: <20070119120733.GA2043@elsdt-razorfish.arc.com>
Joern Rennecke wrote:
>What are the actual semantics of subword?
>The documentation says that it is endian dependent, but the existing
>bi-endian ports always use word 0 to refer to the most significant part.
>
>
You are correct. The semantics are not endian dependent. Similar to the
way shift operators are not endian dependent. The documentation also
says that dependence on endianness was to be revisited. Perhaps that's
what happend, or perhaps the intent was to recommend caution when using
a (mem ...) expression as the operand of (subword ...)
Dave
prev parent reply other threads:[~2007-01-19 15:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-19 12:07 Joern Rennecke
2007-01-19 15:30 ` Dave Brolley [this message]
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