reading the .sim file format to reading the .ext file format, which
is that .sim files use capacitance values of fF while .ext files
use capacitance values of (nominally) aF. So there was a conversion
factor of 1000 left over from the .sim file reading code that needed
to be removed, or else parasitic values come out to be 1000 times too
high.
the location of a node which was previously read as a port. But
the port location was not set when reading the port, only the
drivepoint, so the location is undefined and can cause a program
crash.
code which are relevant and need to be included. Current state
is that hierarchical extresist "basically works" but entry and
exit points through the hierarchy are not being examined, so
results are currently based on port positions and not actual
connections. Also, proper distribution of coupling caps has not
yet been worked on.
Rebased, fixing merge conflict.
"extresist" command continues to work as before. However, the
method now reads from .ext files instead of .sim files, so
generating ".sim" and ".nodes" files is no longer necessary.
In addition, the core code of "extresist" was put directly into
ExtCell.c so that full R-C extraction can be run using
"extract do resistance" followed by "extract all", without
needing to run "extresist" at all other than to set parameters
(e.g., "extresist tolerance 10").
R. Timothy Edwards