magic conversion for making magic contact types from contact cuts
from the CIF/GDS input rules rather than the output rules. This
generally makes more sense, plus avoids conflicts where the output
rules may be set for CIF-DRC checks and may not be appropriate for
LEF input without changing the style.
an error message when reading uses from a .mag file. Also modified
the GDS write routine to provide an error message when an abstract
view points to a GDS file but the GDS file cannot be found.
both an abstract view (i.e., comes from a LEF file or otherwise
has been marked with the LEFview property) and a GDS_FILE
property expects to insert the contents of GDS_FILE into the GDS
output stream minus header and trailer, and with all internal
cells renamed by prefixing them with the top-level cell name to
avoid naming conflicts.
less confusing. Removed leading spaces in instance path which
could cause a failure to recognize that a path was not specified
for a use in an input file.
from the rigorous method of versioning in case files are relocated
and the use paths are no longer valid. Cells are then searched
for in the search paths in the traditional manner, albeit with a
stern warning. This should avoid most backwards-compatbility
issues.
written interprets the path of every use as either a full
absolute path or a path relative to the parent cell, given the
different ways that a parent cell's path could be specified
(absolute or relative).
the path component of the use def was interpreted as being relative
to the parent when reading the cell def but not when writing,
resulting in paths being interpreted incorrectly.
This correction allows a full path to be passed for the cellname
and will (correctly) break the path into cell name and path
components (previously was naming the cell with the full path).
To avoid name conflicts, the cell name gets modified if the path
cannot be resolved against an existing cell of the same name.
However, various updates are needed to match changes in magic
over the years, including handling of non-manhattan geometry,
and handling of added DRC rules such as surround and extend.
to be not quite right, and all sets of rules need to be updated
to match the latest DRC rule parsing. Also, plowing does not
handle contact types correctly.
enabling the "plow" command. At this time, however, not all
rules are being implemented correctly given the numerous changes
to the DRC handling since the last time "plow" was working. Fixes
are ongoing.
cause a crash. Corrected the implementation as well as implemented
an option for "subcircuit top auto" that generates a subcircuit
header or not depending on the presence or absense of ports in the
top level cell.
cells with abstract views on all leaf nodes using the "LEFview"
property to declare the cell view to be abstract. Such cells
were being misinterpreted as containing no active devices.
Tim Edwards
Tim Edwards