Lpc2000

At 12:56 PM 4/9/06 +0100, Stephen Pelc wrote:
> > Robert Adsett <subscriptions@...>
>
> > Indeed, I've yet to see a good reason to use inline
> > assembler on any processor and that's doubly true for the
> > ARM.
>
>When you need efficient access to ideas not supported by the
>programming language. These are usually things like the state of
>the Carry and Overflow flags. Using assembler rather than high
>level kluges can improve performance by factors of 2..5,
>depending on CPU.
>
>A client of ours performs financial calculations using 128 bit
>integers. The difference between their app and the competition's
>floating point app for part of the Hong Kong airport
>construction was US dollars 10,000,000. The on-screen
>recalculation performance was important, so they coded the quad-
>integer routines.

OK, but how is that an argument for making the assembler inline?  I do see 
uses for assembler, I am just of the opinion, informed by my experiences, 
that inline assembler causes more problems than it fixes.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,   be 
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