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ngspice
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Tiny updates

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Holger Vogt 2022-10-16 10:45:23 +02:00
parent 51fbf2fbf3
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28
INTERNALS
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@ -22,17 +22,17 @@ CODE ORGANIZATION
and "sharedspice.c" used as entry for ngspice as a shared library. and "sharedspice.c" used as entry for ngspice as a shared library.
There are also main files for outdated ngnutmeg, nghelp, ngmultidec, There are also main files for outdated ngnutmeg, nghelp, ngmultidec,
ngproc2mod, and ngsconvert. ngproc2mod, and ngsconvert.
"src/ciderlib" hosts the code for the CIDER extension to ngspice, a "src/ciderlib" hosts the code for the CIDER extension to ngspice, a
2D process simulator offering connection between process and devices 2D process simulator offering connection between process and devices
to be simulated by ngspice. to be simulated by ngspice.
"src/xspice" contains the code for the XSPICE extension to ngspice, an "src/xspice" contains the code for the XSPICE extension to ngspice, an
interface to analog and digital code models for true mixed signal simulation. interface to analog and digital code models for true mixed signal simulation.
"src/misc" Miscellaneous utility and portability routines. "src/misc" Miscellaneous utility and portability routines.
"src/include" Header files for all *.c files of ngspice. "src/include" Header files for all *.c files of ngspice.
"src/spicelib" is the device library and analysis portion of ngspice. Within "src/spicelib" is the device library and analysis portion of ngspice. Within
it are the following subdirectories: it are the following subdirectories:
@ -40,7 +40,7 @@ CODE ORGANIZATION
each device implementation. each device implementation.
analysis/ All of the analysis code. analysis/ All of the analysis code.
parser/ To set up the matrix derived from the netlist. parser/ To set up the matrix derived from the netlist.
"src/maths" contains all maths functions of ngspice with "src/maths" contains all maths functions of ngspice with
ni/ Numerical algorithms (used by ckt routines). ni/ Numerical algorithms (used by ckt routines).
sparse/ Sparse matrix package (used by ckt and ni). sparse/ Sparse matrix package (used by ckt and ni).
@ -50,20 +50,20 @@ CODE ORGANIZATION
misc/ Various math support algorithms misc/ Various math support algorithms
deriv/ Various partial derivatives used by some device models (bjt, MOS1-9) deriv/ Various partial derivatives used by some device models (bjt, MOS1-9)
dense/ Matrix operations used by S-parameter simulation dense/ Matrix operations used by S-parameter simulation
"src/frontend" contains the code for interfacing ngspice to its input and output. "src/frontend" contains the code for interfacing ngspice to its input and output.
Files com_*.c contain the control language commands. outitf.c organizes the Files com_*.c contain the control language commands. outitf.c organizes the
output file structure, rawfile.c writes output files, parse.c is the control output file structure, rawfile.c writes output files, parse.c is the control
language function parser. svg and postscript output are handled as well. language function parser. svg and postscript output are handled as well.
inp.c, inpcom.c and subckt.c serve the main input handling functions: inp.c, inpcom.c and subckt.c serve the main input handling functions:
reading the netlist, parsing it, dealing with compatibility, expanding reading the netlist, parsing it, dealing with compatibility, expanding
subcircuits and preparing the internal circuit structure. subcircuits and preparing the internal circuit structure.
Furthermore it contains subdirs Furthermore it contains subdirs
help/ The windowed help system (outdated). help/ The windowed help system (outdated).
numparam/ Parser for .param and .func statements. numparam/ Parser for .param and .func statements.
parser/ More front end -- "C shell". parser/ More front end -- "C shell".
wdisp/ MS Windows GUI wdisp/ MS Windows GUI for plotting
trannoise/ random number and noise generator trannoise/ random number and noise generators
plotting/ plot interface to X11, gnuplot, and preparing output graphs plotting/ plot interface to X11, gnuplot, and preparing output graphs
(curves and grid), interpreter for 'plot' command (plotit.c) (curves and grid), interpreter for 'plot' command (plotit.c)