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Message
From: =?UTF-8?B?Sm9hY2hpbSBTdHLDtm1iZXJnc29u?=<Joachim.Strombergson@I...>
Date: Mon, 09 Dec 2002 15:23:15 +0100
Subject: Re: [oc] "1/x" function
Aloha!
Rudolf Usselmann wrote:
> I actually do have several math books that describe dividers. I
> was trying to see if there was a clever (very small & fast) way
> to build a 1/x function without pulling out my last gray hairs !
>
> The end result would be to build a divider using a 1/x and then
> multiply operations. The rational is that I already have a multi-
> plier, and I was hoping to be able to build a 1/x function in much
> smaller space and higher speed than a full divider.
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.
VP, Research & Development
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