Re: RFC: Generic Fixed-Point IIR Filter

[Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>]

On 03/26/2015 12:44 PM, Patrick Noffke wrote:
> 
> How is universal_fixed (likely) implemented on a 32-bit processor?  What
> happens if you multiply two fixed-point types that use all 32-bits for range
> and precision?  What if one type uses all the bits for the range and another
> uses all the bits for precision?

I refer you to ARM 3.4.1(7):

"The set of values of a universal type is the undiscriminated union of the set
of values possible for any definable type in the associated class." So
universal_fixed has to be able to handle any value of any fixed-point type
definition.

-- 
Jeff Carter
"Since I strongly believe that overpopulation is by
far the greatest problem in the world, this [Soylent
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Charleton Heston
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