prjxray/minitests/pip-switchboxes/README

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Some small tests with PIPs. Lists all the PIPs in a regular CLB and INT tile.
None of the PIPs in the CLB are "real". Some are 1:1 connections that are
"always on" and the others are simply implemented by permuting the LUT init
values.
Probably only works for with the Artix 7 settings because contains
hardcoded slice addresses.