> David,
> I thought I made all indecis computing via shifts/adds.
> Can you gimme an example when array/struct index being computed via
> multiplication?
>
No, this was just a general warning. I haven't noticed anything other than
inline shift/adds for array indexing with msp430-gcc, but I presumed that if
hw multiplication would be the most efficient method of calculation, you
would use it (although that would probably imply an array of very large
structures of a very awkward size). However, I've seen this sort of thing
before with other compilers - multiplies turn up in array calculations, so I
suggest caution when using the -mhwmul-no-int flag.
mvh.
David
> Cheers,
> ~d
>
>
> On Tuesday 14 January 2003 12:00, David Brown wrote:
> > faster. Remember that other code, such as array index calculations,
could
> > use the hardware multiplier, so if you are using this flag it may make
> > sense to compile modules containing interrupt code with the flag
> > (-mdisable-hwmul) that disables the hardware multiplier entirely.
>
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