36 lines
1.5 KiB
Plaintext
36 lines
1.5 KiB
Plaintext
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ngparse -- ngspice changes
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==========================
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ngparse replaces the slow part of ngspice's frontend (.lib/.inc extraction,
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numparam substitution, .subckt expansion). It links in as a static library
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(libngparse.a) driven by a thin glue layer; ngspice's own parser is untouched.
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It is the default in an --enable-ngparse build; --no-ngparse falls back to the
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old frontend for a run. Without --enable-ngparse the glue is a no-op.
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All changes live on branch jfisher/ng_parse. Seven files -- 2 new, 5 modified.
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NEW
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src/frontend/ngparse_glue.c
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The glue. Decides whether ngparse should handle a source, reads ngspice's
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ngbehavior (to pass PSpice mode through), calls the ngparse ABI, and
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writes the expanded deck to a temp netlist. A no-op without USE_NGPARSE.
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src/include/ngspice/ngparse_glue.h
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Glue interface.
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MODIFIED
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src/frontend/inp.c
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The seam: in inp_spsource(), just before inp_readall(), divert it to read
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ngparse's expanded deck instead of the original file. Kept shallow so the
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rest of inp_readall (compat passes, numparam, renumbering) still runs.
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src/main.c
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Adds --no-ngparse (and a redundant --ngparse) plus the --help line.
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configure.ac
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Adds --enable-ngparse and --with-ngparse-dir; checks for libngparse.a and
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ngparse.h; defines USE_NGPARSE.
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src/frontend/Makefile.am
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Builds ngparse_glue.c; adds the ngparse include path.
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src/Makefile.am
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Links libngparse.a into ngspice and libngspice.
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Enabling, PSpice mode, and measured results: see install.txt and comparison.txt.
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