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Re: Adding asm examples
On Sun, Nov 13, 2011 at 11:19:44PM +0000, Valeriy E. Ushakov wrote:
>
> > Some other people in this thread have expressed why they think this
> > would be valuable to them. Granted, in the current form, the code does
> > not cover their "use cases" yet. The most obvious of these is having an
> > example that shows how to write an asm function that can be called from C.
>
> As I said, cc -S is your friend here. It will give you infinite
> examples of exactly what you want, where you use C to express what you
> want. Throw in -fpic, -fomit-frame-pointer etc for more fun.
And -fverbose-asm
I've often used compiler genereated code to help understand how
an instruction set works.
Generally the code is easier to read with -O2 or -O3.
David
--
David Laight: david%l8s.co.uk@localhost
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