* New: In cumulus/plugins.block.configuration, added class ConstantsConf
to store information and create instances of "zero" and "one" cells.
Added attribute in BlockConf class.
* Change: In cumulus/plugins.block.configuration, moved the cell cloning
and saving from block.spares.Spares to configuration.BlockConf as
it is a service that can be used by other modules than just spares.
Other modules may modificate the netlists also, like in XXXX.
* Change: In cumulus/plugins.chip.configuration, in various methods,
manage both cases when the layer is symbolic or real (difference
in accessing the underlying BasicLayers).
* Change: In cumulus/plugins.chip.configuration, less clutered display
of lambda length in trace mode (and use of 'L' as 'l' was too close
to '1').
* Bug: In cumulus/plugins.chip.corona.VerticalSide.addBlockages(),
as the clock are now on the *inner* rail(s), blockage must be on
the *outer* rails (power lines).
* New: In cumulus/plugins.chip.pads.Corner, add support for 45 degree
corners (cfg setting "chip.use45corners").
* New: In cumulus/plugins.chip.pads.Side.check(), correct computation
of the side's length. Was using the ioPadStep instead of the pad
cell width!
* Change: In cumulus/plugins.chip.pads.Corona._padAnalysis(), LibreSOCIO
pads uses Verticals for their ring wires (common sense would want
them *Horizontal*). So they must be included in the physical pin
detection, but in turn this cause havoc in pxlib... So create a
filtering according to the library name. This is *not* robust
but will do for now.
* New: In cumulus/plugins.chip.pad.core2chip.CoreToChip, rename
self.state into self.conf for clarity.
New method newEnableForNet(), to create "enable" nets on the
fly for emulated In/Out pads.
As it can edit the netlist (new "enable" nets) call the
BlockConf.rsave() method instead of direct saving through
AllianceFramework.
Raise NotImplementederror instead of ErrorMessage.
* New: In cumulus/plugins.chip.pad.core2chip.IoPad.createPad(),
on emulated In/Out I/O pad like for LibreSOC, generate on the fly
the right enable signal.
If an enable signal is given, it will be used (backward
compatible with the previous behavior).
* New: In cumulus/plugins.chip.pad.core2chip, support for real
LibreSOCIO pads in libresocio.py module.
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