From: Alessandro Rubini <rubini@unipv.it>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH V4 2/3] lib_generic memset: fill one word at a time if possible
Date: Sat, 10 Oct 2009 23:06:05 +0200 [thread overview]
Message-ID: <20091010210605.GA16493@mail.gnudd.com> (raw)
In-Reply-To: <OF174ADC43.E238E9B3-ONC125764B.0039E83E-C125764B.003AEEB3@tran smode.se>
> The above while can be slow if not the complier manages to turn into:
But the compiler is able, and Wolfgang already told that in another
thread. Yes, I checked my assembly. No, not all platforms and all
versions. like Wolfgang.
I think you may have a point, but unless you have a measured
misworking case to show, we'd better stop here.
/alessandro, who'll lift linux/arch/arm/lib/memcpy.S next time
next prev parent reply other threads:[~2009-10-10 21:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <OF174ADC43.E238E9B3-ONC125764B.0039E83E-C125764B.003AEEB3@trans mode.se>
[not found] ` <cover.1255168028.git.rubini@unipv.it>
2009-10-10 9:51 ` [U-Boot] [PATCH V4 1/3] lib_generic memcpy: copy one word at a time if possible Alessandro Rubini
2009-10-18 21:10 ` Wolfgang Denk
2009-10-10 9:51 ` [U-Boot] [PATCH V4 2/3] lib_generic memset: fill " Alessandro Rubini
[not found] ` <ab1169840f2a99906a81d8512922f5911dc9c0f1.1255168028.git.rubini@unipv.it>
2009-10-10 10:43 ` Joakim Tjernlund
[not found] ` <OF174ADC43.E238E9B3-ONC125764B.0039E83E-C125764B.003AEEB3@tran smode.se>
2009-10-10 21:06 ` Alessandro Rubini [this message]
2009-10-18 21:11 ` Wolfgang Denk
2009-10-10 9:51 ` [U-Boot] [PATCH V4 3/3] lcd: remove '#if 0' 32-bit scroll, now memcpy does it Alessandro Rubini
2009-10-18 21:11 ` Wolfgang Denk
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