Various updates to prepare for ngspice-47
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Holger Vogt
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2f9c8ad470
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1
AUTHORS
1
AUTHORS
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@ -10,6 +10,7 @@ The following people have contributed in some way:
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Vera Albrecht,
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Cecil Aswell,
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Giles Atkinson,
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Meisam Bahadori,
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Giles C. Billingsley,
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Phil Barker,
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Steven Borley,
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2
COPYING
2
COPYING
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@ -1,6 +1,6 @@
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Ngspice Licensing
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Copyright (c) 2025 by ngspice team
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Copyright (c) 2026 by ngspice team
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All rights reserved.
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license for this document: CC-BY-SA v4.0
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2
FAQ
2
FAQ
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@ -256,7 +256,7 @@
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The latest version released is:
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ngspice-46 (released on March 29, 2026)
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ngspice-47 (released on August 9th, 2026)
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2.2. What are the latest features in the current release?
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49
INSTALL
49
INSTALL
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@ -57,7 +57,8 @@ This file describes the procedures to install ngspice from sources.
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ngspice as a standard executable (command-line input, file and graphics
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output):
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bison, flex, X11 headers and libs, Xaw, Xmu, Xext, Xft, FontConfig,
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Xrender, freetype headers and readline.
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Xrender, freetype headers and readline. Soundfile (*.wav) support requires
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libsndfile and libsamplerate.
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Typically one needs the headers (e.g. libX11-devel) and the libs (e.g. libX11-6)
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of the packages mentioned above.
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@ -81,14 +82,14 @@ This file describes the procedures to install ngspice from sources.
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For compiling ngspice as a shared library, see section 1.4.
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1.2 Install from tarball (e.g. ngspice-46.tar.gz)
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1.2 Install from tarball (e.g. ngspice-47.tar.gz)
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This covers installation from a release distribution (for example
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ngspice-46.tar.gz, the so called tar ball).
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ngspice-47.tar.gz, the so called tar ball).
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After downloading the tar ball to a local directory, unpack it by command:
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$ tar -zxvf ngspice-46.tar.gz
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$ tar -zxvf ngspice-47.tar.gz
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Now change directories in to the top-level source directory (where this
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INSTALL file can be found).
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@ -535,6 +536,42 @@ This file describes the procedures to install ngspice from sources.
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ngspice/visualc. Code models are not made (see above how to generate them), and
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ngspice.dll is not installed to anywhere, but (for release) may be found in
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ngspice\visualc\sharedspice\ReleaseOMP.x64.
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Compiling with fftw support using vngspice-fftw.sln (or sharedspice.sln with
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ReleaseOPM-fftw configuration) requires 64 bit fftw downloaded from
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https://fftw.org/pub/fftw/fftw-3.3.5-dll64.zip and expanded into a directory
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called fftw-3.3-dll64, which has to be at the same level as the ngspice directory.
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So a development tree for VS looks like:
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D:\Spice_dev\
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fftw-3.3-dll64\
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fftw3.h
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...
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flex-bison\
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win_bison.exe
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...
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libsamplerate\
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bin\
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...
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libsndfile\
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bin\
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...
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ngspice\
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src\
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...
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visualc\
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src\
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include\
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ngspice\
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config.h
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...
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vngspice.sln
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vngspice.vcxproj
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...
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Editing config.h will allow disabling of features, e.g. removing soundfile support by
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undefining flags HAVE_LIBSNDFILE and HAVE_LIBSAMPLERATE.
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3.3 make ngspice with pure CYGWIN
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@ -581,6 +618,7 @@ This file describes the procedures to install ngspice from sources.
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5. Install XQuartz, libtool, autoconf, automake, readline, ncurses
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6. Install OpenMP from mac.r-project.org (a sufficiently modern OpenMP,
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required by the ngspice OSDI interface).
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7. You might also install libsndfile and libsamplerate from Homebrew.
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4.2 Compile scripts for the bash terminal
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1. standard ngspice executable
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@ -607,7 +645,7 @@ This file describes the procedures to install ngspice from sources.
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sudo port install autoconf automake libtool bison flex ncurses
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readline fontconfig freetype libomp xorg-libXaw
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4. Use one of the scripts provided: compile_macos_clang.sh or compile_macos_gcc.sh
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gcc may be installed from Homebre at https://formulae.brew.sh/formula/gcc, with the
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gcc may be installed from Homebrew at https://formulae.brew.sh/formula/gcc, with the
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advantage that it supports OpenMP.
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5. Or run the commands manually: Configure NGSPICE invoking "./configure".
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A complete set of features is:
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@ -647,6 +685,7 @@ Resulting dependencies of ngspice
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/usr/lib/libSystem.B.dylib
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/usr/local/lib/gcc/11/libgcc_s.1.dylib
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5.4 About compilers
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A compile script compile_macos_clang.sh contains all necessary steps for compiling
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with the Xcode clang/llvm compiler. This compiler however does not support -fopenmp.
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2
NEWS
2
NEWS
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@ -1,4 +1,4 @@
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Ngspice-47, June ??, 2026
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Ngspice-47, August 9th, 2026
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============
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- New features:
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+ Update periodic state sim (PSS) and examples
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@ -36,3 +36,6 @@ to LDFLAGS
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Linux Ubuntu 24.04 has the libraries libsndfile0 and libsamplerate0 available automatically.
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You may need to install (with apt) the development header files libsndfile0-dev and libsamplerate0-dev.
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If libsndfile or libsamplerate are not available, ngspice will compile without wave support. ngspice
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will emit an error message if soundfile handling is requested.
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