MesaAsm Files

Dasm v1.0 Assembler & Disassembler for Mesa Electronics VHDL CPU

Zip file provided but the most current version is always in subversion.

Project page: http://sourceforge.net/projects/mesaasm/

I try to keep both linux and windows build working at the same state,
but linux development is the priority.  The code is 99% function but
it is still to be considered a work in progress. Only simple expressions
work, (BIGVAL >> 8) is ok ((BIGVAL >> 8) & 0xff) is not!

I am doing my best with the manual, please send me an email 
regarding any functional errors. Read the example .dasm files for more!!!

usb_lbp.dasm example is a work in progress.

Requires bison and flex to build dasm. disasm does 
not (currently) need bison or flex.

I installed bison-2.4.1-setup.exe and flex-3.5.4a-1.exe in that order to
C:\GnuWin32 and added to the path C:\GnuWin32\bin.  If you use DJGPP or
WinAVR packages that include Bison or Flex, this install version is 
more recent. I can't speak to any effects on other packages.

Linux (32 & 64 bit)
make
./dasm dis.dasm dis.lst

Windows XP Visual Studio 2005 command line shell, others should work.
nmake -f NMakefile
dasm dis.dasm dis.lst

To disassemble Mesa produced vhdl file:
disasm usbrom.vhd > usbrom.dasm

Read the bottom of the dissassembled output file for notes!

The disassembler assumes line 21 contains the '(' which starts the
hex contents!  This location may change at Mesa's chosing.  Dasm would
then require new prolog and epilog files for produce compatible output.

Credits:

Based on ideas from http://www.colinmackenzie.net (Your First CPU) very little
was actually borrowed.

Uses Marian Vittek, Bratislava, http://www.xref-tech.com/sglib for list management.

Source code portions copyright Mesa Electronics, used by permission and in accordance
with their stated licensing terms.


Dasm Assembler and Disassembler for Mesa Electronics VHDL CPU
Copyright (C) 2012 David Farrell

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, see <http://www.gnu.org/licenses/>.
    
See License.txt for GNU GENERAL PUBLIC LICENSE Version 2

David Farrell dfarrell at protoparts dot com

Released according to copyright notices container in the source files.

Mesa Electronics license agreement:

-- This program is is licensed under a disjunctive dual license giving you
-- the choice of one of the two following sets of free software/open source
-- licensing terms:
--
--    * GNU General Public License (GPL), version 2.0 or later
--    * 3-clause BSD License
-- 
--
-- The GNU GPL License:
-- 
--     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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-- 
-- 
-- The 3-clause BSD License:
-- 
--     Redistribution and use in source and binary forms, with or without
--     modification, are permitted provided that the following conditions
--     are met:
-- 
--         * Redistributions of source code must retain the above copyright
--           notice, this list of conditions and the following disclaimer.
-- 
--         * Redistributions in binary form must reproduce the above
--           copyright notice, this list of conditions and the following
--           disclaimer in the documentation and/or other materials
--           provided with the distribution.
-- 
--         * Neither the name of Mesa Electronics nor the names of its
--           contributors may be used to endorse or promote products
--           derived from this software without specific prior written
--           permission.
-- 
-- 
-- Disclaimer:
-- 
--     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
--     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
--     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
--     FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
--     COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
--     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
--     BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
--     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
--     CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
--     LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
--     ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
--     POSSIBILITY OF SUCH DAMAGE.
--