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rlar 3cd81295a8 DEVmodDelete(), change API, #2/2, complete the change 
Instead of searching and then deleting a given device-model,
  just delete the given model.

The search shall be done somewhere else.

Don't free the model struct itself,
  this shall be done by the invoker himself.

Don't free the device instrance list,
  this shall be done by the invoker himself.

As a consequence, most DEVmodDelete() functions
  collapse almost completely.

This change is of no consequence,
  because DEVmodDelete() is currently nowhere used.
 		2018-02-17 11:52:53 +01:00
..
cm declare free() / realloc() arguments `const void *' 2016-07-17 11:19:34 +02:00
cmpp xspice, implement "CALLBACK" 2017-04-12 20:02:35 +02:00
enh declare free() / realloc() arguments `const void *' 2016-07-17 11:19:34 +02:00
evt xspice, implement "CALLBACK" 2017-04-12 20:02:35 +02:00
examples src/xspice/examples/io_types.deck, bug fix, instance name 2016-02-07 17:33:25 +01:00
icm DEVmodDelete(), change API, #2/2, complete the change 2018-02-17 11:52:53 +01:00
idn remove all .cvsignore files 2012-10-26 18:30:14 +02:00
ipc xspice/ipc/ipcsockets.c, choke some warnings 2016-03-22 15:24:41 +01:00
mif DEVmodDelete(), change API, #2/2, complete the change 2018-02-17 11:52:53 +01:00
.gitignore .gitignore files 2012-02-26 16:19:58 +01:00
Makefile.am xspice/icm/table, introduce table2d/table3d 2017-04-30 17:00:15 +02:00
README fix file modes 2012-06-12 21:26:29 +02:00
xspice.c declare free() / realloc() arguments `const void *' 2016-07-17 11:19:34 +02:00

README 

ngspice Xspice code model support.
2012 05 06
--------------------------------------

Use configure the flag --enable-xspice to compile xspice support in,
when you run the ./configure script.
This creates a new command, "codemodel", which you can 
use to load a codemodel. 

The command codemodel attempts to load all the codemodels specified in the
arguments, eg 
"ngspice 1 ->codemodel /usr/lib/ngspice/analog.cm /usr/lib/ngspice/spice2poly.cm"

( note: the codemodel path must begin with ./ or / to work )

The codemodels are automatically compiled and then installed in
${prefix}/lib/ngspice/ when ngspice is installed.

To create your own codemodels:

* Unpack the ngspice source and compile as normal.

* cd src/xspice/icm

* make the directory structure for the new library:
 Create the nested library_name and module_name directories and copy the
 source code to the module_name directories

        src/xspice/icm/ <library_name> /
                modpath.lst udnpath.lst
                <module_name> / 
                        files:
                         cfunc.mod  ifspec.ifs ( for a device )
                         or
                         udnfunc.c ( or a user defined node )

* For each library create the files modpath.lst and udnpath.lst, which 
  contain a list of the user devices and nodes respectivily, in the location
  shown above.

* Edit src/xspice/icm/makedefs.in and alter the CMDIRS line to include
  your library directory.

* Run make in the src/xspice/icm directory. ( the makefile does the rest )

The codemodel can be then found in 
  src/xspice/icm/<library_name>/<library_name>.cm


-----------------------------------------
SPICE2 POLY codemodel support.

SPICE2 POLY attributes are now available for controlled sources.  

To use POLY attributes, configure and install ( make install ) 
ngspice with the --enable-xspice flag set as described above.  

After compilation of ngspice edit 
${prefix}/share/tclspice/scripts/spinit or 
${prefix}/share/ngspice/scripts/spinit 
( depending if you included tcl support or not )

and uncomment the 
"* codemodel /usr/lib/spice/spice2poly.cm" 
line and edit as required. ( the path to spice2poly.cm may be wrong )
( alternativily create a ~/.spiceinit file with the above codemodel line )

Then read in your SPICE netlist.  SPICE 2 POLY attributes in
controlled sources will be translated into .models invoking the
spice2poly codemodel.  You should be able to run ngspice and simulate
in the usual way!

Please direct questions/comments/complaints to the ngspice user's list 
or forum.