Replaced the "hspice" directory with Conrad Ziesler's
"spiceparser". The use of routine AddNTermModule() has
broken the spice input for now, although once fixed, the
results should be much improved.
Also, changed the handling of expression parameters so
that expression parameter results may be numeric, and
evaluated results are saved in the PostScript output as
instance values. When traversing the hierarchy during
redisplay, commands invoking a "selected" element will
pick up the object instance being rendered. The
combination of these changes allows the implementation
of several useful features such as counter-rotation and
displaying the name of an object within the object.
From the CHANGES file:
254 v3.1 rev 19 8/12/03
Required reconfiguring without Tcl once to generate the
"Makefile.in" in the Xw directory; otherwise, automake 1.7
becomes a requirement.
253 v3.1 rev 18 8/6/03
A fix to the output, correcting the page numbering in the
PostScript page headers. The incorrect numbering can cause
some printers to lock up. . .
252 v3.1 rev 17 7/14/03
Thanks to Ted Roth for fixing my rather too-hasty fix of
revision 16. Also: Some fixes to the autoconf script (also
from Ted Roth), and autoconf script updated to work with the
latest versions of autoconf/automake/aclocal.
The source for version 3.1 contains the first official release of the
Tcl/Tk-based version of xcircuit. At this time , everything in the
original program has been implemented in the Tk GUI. The Tcl version
has the greatest amount of command-line control, and can be run
exclusively from the command line (e.g., from a script). A
command-line argument "-exec" has been added to facilitate running
xcircuit in "batch mode".
Starting with version 3.1 revision 10, XCircuit has been made an
official part of the EDA environment including Magic, IRSIM, Netgen,
and Tclspice. Revision 10 addresses interoperability among these
applications, including use of XCircuit in conjunction with Magic for
Layout-vs.-Schematic (LVS) verification. A Magic tutorial on using
XCircuit, Magic, and Netgen together for LVS is in the works. Note
that this EDA environment requires that all applications be compiled
with Tcl/Tk.
From this point, the embedded Python interpreter interface will not be
further developed, except for essential bug fixes and such.
increase in version number. From the XCircuit homepage:
Note that the March 28, 2001 version corrects a bug due to
dubious C syntax causing segmentation violations when xcircuit
was compiled without the debug option.
C Trivia question:
What does "x[a] = x[--a]" do?
Answer A: "x[a] = x[a - 1]; a--"
Answer B: "a--; x[a] = x[a]"
Answer C: either A or B, depending on your OS, compiler version,
and/or debug or optimizer switch.
