"The log file appears blank when a VDMOS element is added".
The problen was caused by a crash during sensitivity analysis
caused by selecting parameters for wariation based on their
values. That is not repeatable between passes. The fix is to
remove that code, but it causes many more parameters to be used.
the terminal driver's treatment of the control-D (EOF) and escape
keys on Unix-like OSs. But escape has no special meaning, and treating
control-D as a line terminator was probably to prevent unexpected
session exit when connected through a modem without error-correction.
Removing the function allows "ngspice netlist &" to work correctly.
The function was called during initialisation, which caused an endless
loop of job-control stops when ngspice was started as a background process.
by using available high performance functions first.
Deprecated ftime() still acts as a backup function.
Solution is portable for today's operating systems and compilers.
in Verilog source code. Also add two parameters to d_cosim:
sim_args is used to pass string arguments to a Verilator simulation;
and lib_args is for future use. In vlnggen, also check for two causes
of failure: a verilator error may lead to creation of interfering header
files; and misleading instances of verilated_shim.cpp can cause an obscure
failure (reported by Diarmuid Collins).
Use a generic name for the generated DLL in MSVC.CMD.
Add controlled_exit() to errors when parsing functions.
Add verbose error messages, including line number and
name of the source file.
.lib file handlinmg with its recursive structure probably needs
testing and improvements.
More error messages may need this update.
called from an XSPICE code model's INIT call and has three effects:
the instance is treated as "hybrid" even when it does not use both
port types; its position in the hybrids array is adusted; and it
is explicitly notifed when called just befoore the end of an
analog time-step.
loading and parsing.
If set, it removes quoting tokens for params. This requires
that Skywater PDK does adequately stick to the ngspice syntax
to put params in between braces. As far as tests go, it does.
It also set the number of nodes for MSO devices to 4, so no lengthy
search is required.
KLU is selected by 'option klu'
If both 'option klu' and 'option sparse' are given,
the last one executed determines the solver.
'option sparse=0' de-selects spares, i.e. selects klu.
'option klu=0' de-selects klu, selects sparse.
'option klu=1' has the same meaning as 'option klu'.
'option sparse=1' has the same meaning as 'option sparse'.
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
Holger Vogt
Brian Taylor
Giles Atkinson
dwarning
Pascal Kuthe
Pascal Kuthe
Francesco Lannutti
Francesco Lannutti
holger