linked model list modtab. The time used here grows approx.
quadratically with the number of models. If the numbers get large,
e.g. with the IHP Open PDK, setup time make simulation impractical.
Therefore the linked list modtab has been enhanced by a hash table
modtabhash, which allows linear search time and makes simulation
of a 200k transistor circuit with IHP PDK possible. Already
the setup time for 15k transistor circuits has been reduced.
That makes it possible to push ngspice into the background while
plot windows are open: the windows remain responsive.
Discussion on ngspice-users, starting 2023-09-01,
title: "`quit` in Interactive Mode."
Also restore terminal state when forcing exit with SIGINT (control-C).
that gives the location of the ngspice installation. That allows
binaries to be installed in a different directory to the one
compiled in. The spinit startup file is made location-independent
by passing a variable giving the location of loadable modules,
so this fixes Bug #615 -
"spinit contains arch dependent paths, but is installed as noarch DATA".
Let vec1 = cvector(50)
will generate a complex vector, with the real part values
increasing from 0 to 49, the imaginary values are set to 0.
Useful in ac loops to store result data.
Coded according to acan., AC analysis
MIF_NOI is not yet supported by any code model, so
MIF_AC is used (code models behave like in ac mode,
they are noiseless.
to a code model, there is no longer a reference to the value of the event
at the head of the free list. That allows all such free lists (with the
same data type) to be combined, probably improving performance.
This is in preparation for full implementation of inertial delay for
digital nodes.
This initial prototype is capable of performing DC, transient and AC
analysis. Not all features of OSDI are supported yet and there are still
some open questions regarding ngspice integration. However many usecase
already work very well and a large amount of CMC models are supported.
The biggest missing feature right now is noise analysis.
test: test case for diode DC working with SH
test: add transient analysis to osdi_diode test
test: added docu text to osdi_diode test
test: added test case directories
fix: bug in osdi_load
test: small change to netlist
fix: implement DEVunsetup
fix: correct behaviour for MODEINITSMSIG
test: osdi diode enable all analysis modes
removed netlist
ignoring test results
added the build of the diode shared object to the python test script
deleting old stuff and always rebuilding the shared object
added diode_va.c to the repo
preparing CI
Create .gitlab-ci.yml file
(testing) add res, cap and multiple devices test
feat: use osdi command to load files
Previously OSDI shared object files were loaded from fixed directories.
This was unreliable, inconvenient and caused conflicts with XSPICE.
This commit remove the old loading mechanism and instead introduces the
`osdi` command that can load (a list of) osdi object files (like the
codemodel command for XSPICE). A typical usecase will use this as a
precommand in the netlist:
.control
pre_osdi foo.osdi
.endc
If the specified file is a relative path it is first resolved relative
to the parent directory of the netlist. If the osdi command is invoked
from the interactive prompt the file is resolved relative to the current
working directory instead.
This commit also moves osdi from the devices folder to the root src
folder like xspice. This better reflects the role of the code as users
may otherthwise (mistakenly) assume that osdi is just another
handwritten model.
test: update tests to new command
fix: do not ignore first parameter
feat: implement log message callback
fix: don't generate ddt matrix/rhs in DC sweep
fix: missing linker script
update to osdi 0.3
(testing) simplify test cases, fix bug
(testing) multiple devices test improvement
(testig) node collapsing bugfix
test: increase tolerance in tests
feat: update to newest OSDI header
fix: temperature update dt behaviour
fix: ignored models
fix: compilation script
fix: allow hicum/l2 to compile with older c++ compilers
fix: set required compiler flags for osdi
fix: disable x by default
fix: add missing SPICE functions
fix: update diode to latest ngspice version
feat: implement python CMC test runner
doc: Add README_OSDI.md
fix: make testing script work with python version before 3.9
fix: free of undefined local variable
fix: do not calculate time derivative during tran op
update osdi version
fixes for compilation on windows
char* ngCM_Input_Path(const char* path);
to shared ngspice API
to send file path for code model input files (e.g. dsource).
Such path cannot be extracted automatically when netlist has
been sent by ngSpice_Circ
which finds a token, while scanning over (), like
they were white spaces. It also proceeds with s while
still finding (), (which gettok_noparens does not do).
by setting all variables to type int.
Remove redundant function declarations by remmoving some includes
in span.c and vsrcdefs.h
In tmalloc convert int to size_t
With this commit the patch provided by Alessio Cacchiatori the S-parameter is completed:
Noise simulation added with C matrix output
Y and Z matrix output enabled
To allow compiling with gcc, the dense.h inline functions have been put into denseinlines.h
Smithgrid and polar plots could not discern between xgridwidth and
xbrushwidth. This is now available, similar to straight line plotting.
Tested also for PS and SVG.
Add a function ft_getpnames_quotes()
It puts quotes " around tokens xxx, when these are enclosed as
V(xxx) and contain arithmetic characters. V(R*C) becomes
V("R*C"). After settig up the parse tree, the quotes are removed again.
Thus these math character remain part of the node name and are not
parsed as parts of an equation.
Add 2 evaluation functions specific for R and C respectively.
R has code letters L, R, K, M, G, T enabled. M here is Meg!
C has code letters p, n, u or µ, m, F. F here is unity, femto is
not available, m is still milli!
Two examples files show all cases.
When standard iteration, gmin stepping and source stepping fail,
try a transient simulation (like tran with uic option) to
determine the op. Implemented for AC and Tran simulation.
Replace the type of all boolean variables around the ABI by NG_BOOL.
NG_BOOL is typedefed to _Bool, when compiling shared ngspice. When
sharedspice.h is use externally NG_BOOL is typdefed to bool
Brian Taylor
Pascal Kuthe
Holger Vogt
Giles Atkinson
Pascal Kuthe
Francesco Lannutti
Francesco Lannutti
holger
Alessio Cacciatori