From: Avi Kivity <avi@qumranet.com>
To: Laurent Vivier <Laurent.Vivier@bull.net>
Cc: Rik van Riel <riel@surriel.com>,
"kvm-devel@lists.sourceforge.net"
<kvm-devel@lists.sourceforge.net>,
Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net>,
Mohammed Gamal <m.gamal005@gmail.com>,
Alexander Graf <alex@csgraf.de>
Subject: Re: Protected mode transitions and big real mode... still an issue
Date: Wed, 30 Apr 2008 02:20:56 +0300 [thread overview]
Message-ID: <4817AD58.6020707@qumranet.com> (raw)
In-Reply-To: <1209489733.4248.65.camel@frecb07144>
Laurent Vivier wrote:
>> Why dst.val is not 0x53e10 ?
>>
>
> I can answer myself to this one:
>
> emulate_2op_SrcB("sal", c->src, c->dst, ctxt->eflags);
>
> does nothing if dst.byte == 0
>
> So next question is the good question...
>
>
>> Why dst.byte is 0 ?
>>
>>
Because dst.bytes is only set if dst.type == OP_MEM, or ad hoc in the
instruction itself.
Better to set it unconditionally (and adjust in the instruction if
necessary).
--
Any sufficiently difficult bug is indistinguishable from a feature.
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next prev parent reply other threads:[~2008-04-29 23:20 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-29 13:02 Protected mode transitions and big real mode... still an issue Guillaume Thouvenin
2008-04-29 16:41 ` Anthony Liguori
2008-04-29 17:09 ` Laurent Vivier
2008-04-29 17:22 ` Laurent Vivier
2008-04-29 23:20 ` Avi Kivity [this message]
2008-04-29 18:17 ` Anthony Liguori
2008-04-29 16:56 ` David Mair
2008-04-29 18:16 ` Anthony Liguori
2008-05-01 19:13 ` Marcelo Tosatti
2008-05-03 8:26 ` Balaji Rao
2008-05-05 12:40 ` Guillaume Thouvenin
2008-05-05 12:44 ` Balaji Rao
2008-05-05 12:57 ` Anthony Liguori
2008-05-05 13:29 ` Mohammed Gamal
2008-05-06 13:38 ` Guillaume Thouvenin
2008-05-06 14:30 ` Anthony Liguori
2008-05-06 17:05 ` Mohammed Gamal
2008-05-14 7:29 ` Guillaume Thouvenin
2008-05-14 21:29 ` Marcelo Tosatti
2008-05-15 7:33 ` Avi Kivity
2008-05-15 7:49 ` Guillaume Thouvenin
2008-05-15 18:07 ` Mohammed Gamal
2008-05-07 5:57 ` Guillaume Thouvenin
2008-05-05 6:27 ` Guillaume Thouvenin
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