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From: "Hervé Poussineau" <hpoussin@reactos.org>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] FDC: simplify code [v3]
Date: Wed, 09 Apr 2008 08:11:13 +0200	[thread overview]
Message-ID: <47FC5E01.4080308@reactos.org> (raw)
In-Reply-To: <47FBED6E.4080503@bellard.org>

Fabrice Bellard a écrit :
> Hervé Poussineau wrote:
>> Hi,
>>
>> Attached patch prevents duplication of quite similar code in fdc.c, and
>> so, removes 300 lines and 8KB of code.
>> It first extracts implementation of FDC commands to separate methods,
>> and then uses a table to know which method to execute instead of a big
>> switch.
>>
>> This version is quite similar to v1 (I removed the lookup table added in
>> v2), except that I tried to minimize the time spent to search in the
>> command table by putting most used commands at the beginning. I don't
>> have any statistics to proove the order, that's only observation and
>> guess...
> 
> A lookup table could be generated dynamically from your table by using a
> few lines of code... You current solution is very slow, but you are
> saved by the fact that the FDC speed is not critical anyway.

Thanks for the idea. I'll submit a patch for this later.

Hervé

      reply	other threads:[~2008-04-09  6:11 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-07 19:45 [Qemu-devel] [PATCH] FDC: simplify code [v3] Hervé Poussineau
2008-04-08 22:10 ` Fabrice Bellard
2008-04-09  6:11   ` Hervé Poussineau [this message]

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