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Date: Sat, 2 Jan 2016 14:36:48 -0500
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From: DJ Delorie <dj AT delorie DOT com>
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Subject: Re: [geda-user] ideas on slotting and mechanisms for
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> For actual choice made later during design flow it could done with
> back annotation which may be a little bit complicated or forward
> annotate for documentation purpose.

Yes but you're avoiding the problem still - to do annotation of *any*
type you need to somehow know which gate is which.  There needs to be
some way of correlating "these pins on the chip which I assigned in
layout" with "this symbol in the schematic" and refdes is not unique
enough.