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Re: [oc] "1/x" function



On Mon, 2002-12-09 at 21:23, Joachim Strömbergson wrote:
> Aloha!
> 

Hey Joachim ! Hi Gang !

Unfortunately the multiplier is not available for the 1/x function.
I'm building a small integer math unit: add, sub, mul and div. Instead
of the actual div function I was thinking to implement a 1/x function
and have a div be two operations 1/x followed by multiply (with proper
alignments, etc.)

Sure I can use a small second multiplier as well. Unfortunately I
don't have the books you are referring to. I think I need to update
my library ! What are the best (most useful for hardware
implementations) math books that people are using ?  - Opinion Poll
here !

Thanks !

> Well, if you have a multiplier, then an iterative soulution using the 
> multiplier as the base should be a good solution. A high Radix multiplier 
> would give you less iterations. See Parhami 16.5 or Wanhammar "DSP Integrated 
> Circuits".
> 
> -- 
> Med vänlig hälsning, Yours
> 
> Joachim Strömbergson - Alltid i harmonisk svängning.

-- 
rudi
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