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From: Arnd Bergmann <arnd@arndb.de>
To: linuxppc-dev@ozlabs.org, will_schmidt@vnet.ibm.com
Cc: Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH] powerpc: emulate power5 popcntb instruction
Date: Fri, 18 Aug 2006 21:05:44 +0200	[thread overview]
Message-ID: <200608182105.45264.arnd@arndb.de> (raw)
In-Reply-To: <1155924687.9659.25.camel@farscape.rchland.ibm.com>

On Friday 18 August 2006 20:11, Will Schmidt wrote:
> +#define INST_POPCNTB           0x7c0000f4
> +

> +=A0=A0=A0=A0=A0=A0=A0/* Emulate the popcntb (Population Count Bytes) ins=
truction. */
> +=A0=A0=A0=A0=A0=A0=A0if ((instword & INST_POPCNTB) =3D=3D INST_POPCNTB) {
> +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0return emulate_popcntb_inst=
(regs, instword);
> +=A0=A0=A0=A0=A0=A0=A0}
> +

Is that the right check? The other similar traps check against a
mask of 0x7c0007fe.

	Arnd <><

  reply	other threads:[~2006-08-18 19:05 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-17 18:53 [PATCH] powerpc: emulate power5 popcntb instruction Will Schmidt
2006-08-17 19:24 ` Segher Boessenkool
2006-08-18 18:11   ` Will Schmidt
2006-08-18 19:05     ` Arnd Bergmann [this message]
2006-08-18 19:30       ` Kumar Gala
2006-08-19 19:10       ` segher
2006-08-19 20:19         ` Arnd Bergmann
2006-08-19 23:32           ` segher
2006-08-21 20:09             ` Will Schmidt
2006-08-24  6:36               ` Paul Mackerras
2006-08-24 15:53                 ` Segher Boessenkool
2006-08-25  9:59                   ` Gabriel Paubert
2006-08-25 12:57                   ` Paul Mackerras
2006-08-28 18:03                 ` Willschm
2006-08-29  6:43                   ` Segher Boessenkool
2006-08-30 18:11                     ` Will Schmidt
2006-08-18 19:42     ` Kumar Gala
2006-08-19 19:09       ` segher

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