NAME
    casl2 - Simple implementation of CASL II assembler in Perl
    comet2 - Simple implementation of COMET II simulator in Perl

What is casl2?

    casl2 is simple implementation of CASL II assembler and COMET II
    simulator written in Perl. The CASL II assembler and the COMET II
    simulator are designed for users to study principle operations of
    computers. In particular, CASL II and COMET II are used in a
    qualifying examination called as Japan Information-Technology
    Engineers Examination so that these programs would be of value for
    people who would like to acquire this qualification.

    Since both the CASL II assembler and the COMET II simulator are
    written only in Perl version 5, these should work on almost all
    operating system including UNIX flavors, MS-DOS, Windows, and
    Macintosh.

    casl2 includes the following programs:

    casl2 - A simple implementation of CASL II assembler in Perl
    comet2 - A simple implementation of COMET II simulator in Perl

Availability
    The latest version of casl2 can be found at the following location.

    http://se.is.kit.ac.jp/~o-mizuno/

Copyright
    CASL assembler / COMET emulator
    Copyright (C) 1998-2000 Hiroyuki Ohsaki (oosaki@ist.osaka-u.ac.jp)
    CASL II assembler / COMET II emulator
    Copyright (C) 2001-2021 Osamu Mizuno (o-mizuno@kit.ac.jp)

    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
    Free Software Foundation; either version 2 of the License, or (at your
    option) any later version.

    This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
    Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    675 Mass Ave, Cambridge, MA 02139, USA.

System Requirements
    To use this program, you only need:

    - Perl version 5.002 or later
    The latest version of Perl can be obtained from various GNU archives
    around the world (e.g., from ftp://prep.ai.mit.edu/pub/gnu/).

    Unfortunately, casl2 does not work with Perl version 4 since it uses
    various features appeared in version 5 such as object-oriented
    programming feature. casl uses several Perl libraries (e.g.,
    Getopt/Std.pm and File/Basename.pm), which come with the Perl
    distribution and are installed by default. Make sure Perl in you system
    is installed correctly. Typically, these libraries reside in
    /usr/lib/perl5.

Installation
    casl2/comet2 uses standard Perl's MakeMaker module. Thus, just
    type the following commands.

      perl Makefile.PL
      make 
      make install

Feedback
    If you find any bugs, first check if a newer version exists. If not,
    please mail bug report or fixing patch to me. I appreciate your comments
    and/or suggestions.

References
    casl2(1), comet2(1)

Author
    Hiroyuki Ohsaki (oosaki@ist.osaka-u.ac.jp)
    Osamu Mizuno (o-mizuno at kit.ac.jp)