99 lines
3.5 KiB
Plaintext
99 lines
3.5 KiB
Plaintext
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Internal Changes from 3e2
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The device structure has changed: The state counter in all device
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structures has been moved to correspond to GENstates in the
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GENinstance structure.
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Also, a new per-device-type function has been added: XXXunsetup,
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which deallocates nodes and other resources created in the
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XXXsetup function. ("XXX" is the device abbreviation.)
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Internal Changes from 3d2
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FILE NAMES:
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Of the changes to spice3 between 3d2 and 3e1, the
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the most obvious is the new filenames. All filesnames
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have been converted to lowercase and are at most eight
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characters plus an optional dot and three character extension.
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This change was made to accomodate MS-DOS and other operating
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systems which limit the maximum file name length.
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ORGANIZATION
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The top level directory contains the installation "readme" file
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and a "makedefs" files used by the "build" command.
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"src/" contains all of the C source code. This used to be named
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"spice3" or "spice3d2" in previous releases.
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"src/lib" is the library or "toolkit" portion of Spice3. Within
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it are the following subdirectories:
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ckt/ All of the analysis code.
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ni/ Numerical algorithms (used by ckt routines).
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sparse/ Sparse matrix package (used by ckt and ni).
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misc/ Miscellaneous utility and portability routines.
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dev/ All of the device specific code, with a subdir for
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each device implementation.
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inp/ Input parsing; could be much smaller.
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fte/ The front end. Really bad.
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cp/ More front end -- "C shell".
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hlp/ The windowed help system.
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mfb/ Terminal independant graphics package.
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mfbpc/ MFB interface for the IBM PC.
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"src/bin" contains the source for all executable programs (the
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location for "main( )"). "main.c" is used by spice, nutmeg,
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bspice, and cspice (the latter two for MS-DOS). The function
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of "main.c" is altered by defining the pre-processor symbols
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SIMULATOR (for either spice, bspice, or cspice), BATCH for
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bspice, and BATCH and SPICE2 for cspice (no special defines
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give nutmeg). Each variant of the simulator uses "conf.c" (or
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"bconf.c" or "cconf.c", or "nconf.c" for nutmeg), which is
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automatically generated from "config.c". "config.c" is a
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template used to select devices and analyses. "tune.c"
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("tunepc.c") contains the compiled in pathnames.
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"examples/" contains several spice input files.
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"lib/" contains standard data files for spice, such as the help
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files and MFB capability files.
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"man/" contains UNIX style manual pages (ala "man(1)").
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"util/" contains utility scripts, such as "build" for running the
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recursive "make" and "delall.bat" for deleting the distribution on
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MS-DOS systems.
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All "Makefile"s have been replaced with "makedefs" (and optionally
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"depend" and "makeops"). "makedefs" is combined with other
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make definition files with the "build" script.
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SOURCE LEVEL CHANGES
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(Added features are listed in the "README" file).
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DEVICES: The interface to devices has, once again, changed.
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The change is small from 3d2. Table size values in the device
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information struction are now pointers to integers containing
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the table sizes. Per-analyses functions have been surrounded
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with "#ifdef AN_xx"/"#else"/"#endif" lines. Note that the
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"itf.h" files are stored only in the "include/" subdirectory.
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Adding devices to the master list is done in the file
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"src/bin/config.c", instead of "FTE/SPIinit.c".
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SPARSE MATRIX PACKAGE: the sparse matrix package in Spice3e1
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and later is a more efficient implementation than in earlier releases.
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The interface is the same.
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