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From: dennison@telepath.com
Subject: Re: how to do bit-wise operation on none modular types?
Date: 1999/03/04
Message-ID: <7bmavt$i8h$1@nnrp1.dejanews.com>#1/1
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 <7bjjck$25t7@news1.newsguy.com> <7bk5u2$94p$1@remarQ.com>
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Date: 1999-03-04T00:00:00+00:00
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In article <7bk5u2$94p$1@remarQ.com>,
  fraser@synopsys.synopsys.com.com wrote:

> I've recently written a couple of virtual machines for two wildly different
> purposes, and there was a lot of bit fiddling going on, but I did it almost
> exclusively with "/" and "mod", even though I was looking at modular types.
> I suddenly wonder if I was wrong.  Oh, my.

If you found youself doing this type of operation:

  ((Fred / Mask) * Mask) mod (Mask * 2)

or perhaps several of these:
  if (Fred / Mask) mod 2 > 0 then

Then yes, you should have looked at modular types or packed arrays of
booleans.

T.E.D.

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