IRSIM is a tool for simulating digital circuits. It is a "switch-level"
simulator; that is, it treats transistors as ideal switches. Extracted
capacitance and lumped resistance values are used to make the switch a little
bit more realistic than the ideal, using the RC time constants to predict the
relative timing of events.
IRSIM shares a history with magic, although it is an independent program. Magic
was designed to produce, and IRSIM to read, the ".sim" file format, which is
largely unused outside of these two programs. IRSIM was developed at Stanford,
while Magic was developed at Berkeley. Parts of Magic were developed especially
for use with IRSIM, allowing IRSIM to run a simulation in the "background"
(i.e., a forked process communicating through a pipe), while displaying
information about the values of signals directly on the VLSI layout.
For "quick" simulations of digital circuits, IRSIM is still quite useful for
confirming basic operation of digital circuit layouts. The addition of
scheduling commands ("at", "every", "when", and "whenever") put IRSIM into the
same class as Verilog simulators.
To run irsim, users should set CAD_HOME to the base installation directory
where magic was installed, e.g. /usr/local. Alternatively, the system
administrator can create a dummy user named 'cad' with its home
directory set to the installation directory.
Remove WWW entries moved into port Makefiles
Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.
This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.
Approved by: portmgr (tcberner)
Add WWW entries to port Makefiles
It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.
Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.
There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.
(Only the first 15 lines of the commit message are shown above )
cad: remove 'Created by' lines
A big Thank You to the original contributors of these ports:
* AMAKAWA Shuhei <amakawa@jp.FreeBSD.org>
* Alexey Dokuchaev <danfe@FreeBSD.org>
* Anders Andersson <anders@hack.org>
* Bruce M Simpson <bms@FreeBSD.org>
* Christoph Moench-Tegeder <cmt@FreeBSD.org>
* David Yeske <dyeske@gmail.com>
* Diane Bruce <db@db.net>
* Joachim Strombergson <watchman@ludd.ltu.se>
* Johnny Sorocil <jsorocil@gmail.com>
* Julian Jenkins <kaveman@magna.com.au>
* Marc Fonvieille <blackend@FreeBSD.org>
(Only the first 15 lines of the commit message are shown above )
- Return my ports back to the pool. I was unable to make any fixes to
my ports in the past 3 weeks while ports were broken on any 10.x
machines, which means I'm unable to maintain them. So let people know
that there's no available support for them until things are back to
normal (which also means that anyone with spare time will be able
to fix them without getting approval).
- Add LDFLAGS to CONFIGURE_ENV and MAKE_ENV (as it was done with LDFLAGS)
- Fix all ports that add {CPP,LD}FLAGS to *_ENV to modify flags instead
PR: 157936
Submitted by: myself
Exp-runs by: pav
Approved by: pav
