177 lines
7.8 KiB
Plaintext
177 lines
7.8 KiB
Plaintext
Changes
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Version 1.4
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-------------------------------------------------------------------
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For changes since 9/3/05, refer to the list of changes posted
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on the website at http://opencircuitdesign.com/netgen/.
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Version 1.3
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-------------------------------------------------------------------
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9/3/05 -- Added Xilinx .xnf output format.
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-------------------------------------------------------------------
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11/13/04 -- Changed the make process to GNU "autoconf" to match
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magic-7.3 and irsim-9.7.
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-------------------------------------------------------------------
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9/30/03 -- Fixed the "lvs" script such that it no longer suggests that
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circuits having passed "run converge" match uniquely! Script now
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checks the "verify equivalent" to check if the circuit passed the
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local connections test, and does a "run resolve" to check global
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connectivity, with a final call to "verify unique" to give a pass/
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fail answer. Note that by doing "run converge" first and then
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testing keeps the output short while obvious errors like transistor
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mismatch exist.
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Also: Changed the "varargs" method in dbug.c to "stdarg".
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9/22/03 -- Added capability to work with multiple transistors declared
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with the "M=" syntax in SPICE input decks.
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3/31/03 -- "make config" updates and a couple of bug fixes. Updated
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the Tcl script for interoperability with applications "Magic",
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"IRSIM", and "XCircuit".
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3/10/03 -- finished the preliminary new Tcl-based netgen, and updated
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the version number to 1.2. Added the tkcon console, worked out
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ctrl-C interrupts for both the console and the terminal-based modes,
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and extended the log file capability. Added scripted command "lvs"
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to do basically what the standalone command "netcomp" used to do.
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12/12/02 -- started work on new version 1.1, incorporating Tcl as an
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interpreter, changing the command structure to full-name commands
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with arguments, redesigning the make process to match that for
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magic version 7.2 and irsim version 9.6, and cleaning up 10 years'
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worth of accumulated obsolescence.
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Between 1991 and 2002 -- some functionality was added to the .sim
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file format to incorporate two-terminal devices (namely resistors
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and capacitors), and pseudo-three-terminal devices from magic's
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extractor (poly-poly caps and bipolar transistors). Each of these
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becomes a separate class for the netlist comparison. Added better
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handling of hierarchical and array node names passed down from
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magic. Ports (sort of) to IRIX and Linux. Changes largely
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undocumented.
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9/13/91 -- modified ntk.c to allow reading previously undefined
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instances. If a cell does not exist in the cell hash table,
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it is automatically created. To facilitate this operation, an
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explicit procedure ReopenCellDef() is used to avoid the complications
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of the AddToExistingDefinition flag.
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4/12/91 -- fixed some noise after #endif in netcmp.c and place.c.
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Fixed template of ReadNetgenFile in the case of USE_PORTABLE_FILE.
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Moved definition of HAVE_GETOPT to config.h under VMUNIX.
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Version 1.04 frozen.
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11/21/90 -- added 'spice' shell script to wrap spice decks around .ckt files
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produced by netgen. Also added sample spice.top and spice.bot files.
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11/20/90 -- added checks in NodeName for illegal indices into nodename_cache.
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Also repaired a serious bug in generating SPICE and ESACAP output.
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Made some mods (#ifdef mips) in netfile.c for brain-dead MIPS compiler.
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11/9/90 -- added UNIX man-page documentation: netgen.1, netcomp.1, ntk2adl.1
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Modified installation procedure to allow install to occur in a
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subdirectory (for different binaries/architectures).
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11/7/90 -- fixed actelCell() to correctly write out power and
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ground nets even when they are not connected to any logic inputs.
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10/25/90 -- modified Flatten to avoid coredumping on cells that
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had illegally changed the portlist of their instances (e.g., by
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re-opening definitions).
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Also added global variable: AddToExistingDefinition that controls
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whether subsequent CellDefs add to or replace previous definition.
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Default: 0.
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9/13/90 -- added ConnectAllNodes(cellname) to eliminate all disconnected
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(i.e., connected to node -1) nodes within a cell. Also added global flag
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NoDisconnectedNodes that, when true, causes EndCell() to automatically
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call ConnectAllNodes. Modified NETCOMP to set this by default.
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9/12/90 -- improved netcomp algorithm upon detection of illegal partition.
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Improved output format from netcomp (much more user-friendly).
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9/11/90 -- portability enhancements: removed all instances of
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variables "new","template", and "class" for C++ compatibility.
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Modified proto.h to provide correct definition of sprintf for SUNOS-4.0
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9/6/90 -- added makemake shell script to configure makefile.
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9/1/90 -- version 1.03 frozen.
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8/29/90 -- fixed up .EXT parser to correctly accept quoted names.
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Added .SIM input parser. Added GNU Public Licence and copyrights.
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Modified all cell readers to return the name of the top-level cell
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that has been read. Added CellDelete(), CellRename(), and CellCopy()
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functions.
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7/5/90 -- added VerboseOutput flag to control optional output of routines.
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added NoOutput flag to disable printing of stdout.
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4/22/90 -- added Str() procedure to generate temporary strings.
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Streamlined X_main_loop() to call Query() if not running X.
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4/5/90 -- added ESACAP output facility
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3/20/90 -- version 1.02 frozen.
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3/19/90 -- removed object hashing for IBMPC (for memory efficiency
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reasons (see objlist.h)). Improved makefile in tests subdirectory.
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3/5/90 -- arbitrary automorphism resolver added to netcmp
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2/12/90 -- unified X/non-X code (looks for DISPLAY environment variable).
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added .SIM output format
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1/25/90 -- added ability to read command files, from Query() and from X.
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1/23/90 -- added C-code netlist output format. added named parameter
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lists to Cell() procedure. Added Wire() procedure to wire-up an instance.
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12/14/89 -- functional X interface completed. All command-line functionality
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should be present.
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11/21/89 -- deleted all references to data.c and data.h. Modified
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print.c to call X hooks, and to provide Finsert function.
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10/26/89 -- version 1.01 frozen. New makefile target 'dist' uses
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contents of file 'manifest' to generate a distribution tape.
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Version 1.01 made available for anonymous FTP from hobiecat.
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10/25/89 -- modified ntk2adl to automatically operate on top-level
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cell (or, optionally, on cell named in optional second arguement).
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Modified dbug/dbug.c to not include <varargs.h> if IBMPC defined.
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10/24/89 -- stomped bug in FlattenCell. Added global variable
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EquivalenceTransistors to control equivalence of transistor
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source/drains in function Compare() only. Added Fwrap() to print.c.
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10/17/89 -- collected all public domain software into file pdutils.
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Unified 'makefile' between UNIX and MSDOS.
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Added internal support for random number generation.
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10/13/89 -- added routine ReadNetlist, replacing ReadNtk, ReadExt...
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Added NETGEN-internal netlist format: non-portable but fast.
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10/10/89 -- added netcmp module to perform graph isomorphism tests.
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Wrote stand-alone stub: netcomp.c
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9/20/89 -- added support for reading/writing SPICE decks.
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9/13/89 -- added caching of NodeName for each cell. This speeds
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up writing of all netlist formats, while slowing down creation
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of cells somewhat. New procedure NodeAlias replaces NodeName in
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most applications, as it correctly handles disconnected nodes.
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9/12/89 -- improved List() procedure to call LookupObject
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in the absence of wildcards. Removed duplicate call to List() in Cell().
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Sped up ReadNtk by 4x. Added timing command to Query();
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9/11/89 -- improved support for BSD: synthesized v*printf on VAX,
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provided emulation of SYSV string routines, fixed tolower() bug on BSD.
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Get CPU time through getrusage().
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9/7/89 -- Netgen 1.00 released to Mike Godfrey (version frozen)
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