the serial combination routine was disabled so as not to post a
non-working version, since the parallel/serial property networks
are not analyzed. This should be completed soon.
making any subcircuit serializable by using the new command option
"property (device) serial|parallel enable|disable". Note that as
of this commit, serial device detection is enabled but serial
networks are not collapsed for matching, which will tend to lead
to property errors in serial devices until this code is added,
which should be in a day or two.
as failing on certain compilers. This undoubtedly reflects some
change in gcc or the OS setup, but since modern compilers should
be able to figure out for themselves when to inline a subroutine
(or not), the inline hint is somewhat arcane and unnecessary.
'ignore class', but removes instances of the specified class whose
pins are shorted together. Currently requires that all pins must
be shorted together.
include calculations of effective width due to the addition of
width of multiple device instances in parallel. The original
behavior of splitting all "M=" devices into individual instances
has been effectively inverted, instead combining all parallel
devices of the same class into one, with multiple property
records for devices with non-matching properties (e.g., width,
length, etc.). Property matching combines devices with different
"critical properties" (e.g., FET gate width) if these are defined
in the setup using the "property merge" command.
Not yet done: Matching of multiple property records when
critial properties are not defined, handling of critical properties
that combine in parallel instead of simple addition, handling of
devices that combine in series, and the combination of non-critical
properties (e.g., source and drain area, although these are usually
removed from matching).
based on properties that can be traded with number of devices,
such as MOSFET width, by merging. This initial implementation
is somewhat limited, only dealing with properties that merge
by summing. Only devices that do not match at all in the other
circuit will be considered for merging. The feature includes
a command option "property ... merge ..." that allows control
over which devices can and cannot be merged.
variables to iterate over hash table contents. This led to the
inability to nest hash table iterators. Fixed by defining a
wrapper structure that holds the actual hash table plus the size
and iterator indexes. Not only does this solve the nesting
problem, but it also avoids the need to pass the hash table size
on every call, and that reduces the number of ways a hash table
subroutine can go wrong (e.g., cannot access the table out of
bounds simply by passing a size that is larger than was used to
initialize the table).
Tim Edwards