From: Andreas Schwab <schwab@redhat.com>
To: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [RFC] Optimize __arch_swab32 and __arch_swab16
Date: Thu, 11 Aug 2011 10:45:42 +0200 [thread overview]
Message-ID: <m34o1ouyix.fsf@hase.home> (raw)
In-Reply-To: <OF9F5D0B06.A12659DA-ONC12578E9.002B23BB-C12578E9.002D304C__34569.7653633126$1313050887$gmane$org@transmode.se> (Joakim Tjernlund's message of "Thu, 11 Aug 2011 10:13:34 +0200")
Joakim Tjernlund <joakim.tjernlund@transmode.se> writes:
> unsigned short my__arch_swab16(unsigned short value)
> {
> __asm__("rlwimi %0,%0,16,0x00ff0000"
> : "+r" (value));
You are creating a value that does not fit in a short.
Andreas.
--
Andreas Schwab, schwab@redhat.com
GPG Key fingerprint = D4E8 DBE3 3813 BB5D FA84 5EC7 45C6 250E 6F00 984E
"And now for something completely different."
next parent reply other threads:[~2011-08-11 8:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <OF9F5D0B06.A12659DA-ONC12578E9.002B23BB-C12578E9.002D304C__34569.7653633126$1313050887$gmane$org@transmode.se>
2011-08-11 8:45 ` Andreas Schwab [this message]
2011-08-11 8:51 ` [RFC] Optimize __arch_swab32 and __arch_swab16 Joakim Tjernlund
2011-08-11 8:56 ` David Laight
2011-08-11 9:23 ` Joakim Tjernlund
2011-08-11 9:29 ` David Laight
2011-08-11 9:43 ` Joakim Tjernlund
2011-08-11 8:13 Joakim Tjernlund
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