Source-Changes archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: CVS commit: src/sys/arch/arm/ep93xx

On Tue, May 27, 2008 at 01:25:38AM +0900, HAMAJIMA Katsuomi wrote:
> > Are you sure that GCC doesn't do exactly that? For unsigned arithmetic,
> > GCC will normally use unsigned mul + shift and not a division. It would
> > be strongly prefered to not have inline assembly here.
> I do not understand your opinion, sorry. I attach disassembled delay().
> Please tell me details.

Hm. My MIPS is very basic, but it seems like it generates external calls
for the division and does not optimise it as it should. Can someone
confirm that?


Home | Main Index | Thread Index | Old Index