From: Axel Friedrich <lists@...>
Date: 2012-12-10T23:15:34+09:00
Subject: Binary Fixed-Point in Ruby? (Improved FixedPt?)

Hi,

does anybody have/know of an alternative or improved version of FixedPt
("http://rubyforge.org/projects/fixedpt/)?

FixedPt handels fixed-point binaries (not decimals).

For example, this should work:

fi = FixedPt.new(0.1,5,7)

p fi.bin
gives: "11111"
but should give something like: "01100"

and

p fi.to_f
gives: 0.2421875
but should give something like.: 0.1016


I run the ruby-version of FixedPoint (not the compiled version).
I want to use it for checking the fixed-point formats of calculations
done with hardware.

http://en.wikipedia.org/wiki/Fixed-point_arithmetic

Kind regards,
Axel

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