Python wrapper for ATasm, a 6502 cross-assembler using MAC/65 syntax
Python wrapper for ATasm, a mostly Mac/65 compatible 6502 cross-assembler
From the ATasm readme:
ATasm is a 6502 command-line cross-assembler that is compatible with the original Mac/65 macroassembler released by OSS software. Code development can now be performed using "modern" editors and compiles with lightning speed.
pyatasm is a python wrapper that uses the (slightly modified) C code from ATasm. It provides the front end to the assembler and returns the bytes (and other metadata) from the assembly.
- python 2.7 (but not 3.x yet) capable of building C extensions
pyatasm is available through PyPI:
pip install pyatasm
or you can compile from source:
git clone https://github.com/robmcmullen/pyatasm.git cd pyatasm python setup install
Your version of python must be able to build C extensions, which should be automatic in most linux and on OS X. You may have to install the python development packages on linux distributions like Ubuntu or Linux Mint.
Windows doesn’t come with a C compiler, but happily, Microsoft provides a cut-down version of their Visual Studio compiler just for compiling Python extensions! Download and install it from here.
If you check out the pyatasm source from the git repository or you want to modify pyatasm and change the .pyx file, you’ll need Cython. The .pyx file is compiled to C as a side effect of using the command:
python setup.py sdist
A simple example:
#!/usr/bin/env python from pyatasm import Assemble asm = Assemble("tests/works.m65") if asm: print asm.segments print asm.equates print asm.labels else: print asm.errors
Because pyatasm is a very thin wrapper around ATasm (and very little ATasm code was changed) it needs to creates files to do its work. These files will be created in the same directory as the source file, so the directory must be writeable.
The segments attribute will contain a list of 3-tuples, each tuple being the start address, the end address, and the bytes for each segment of the assembly. A segment is defined as a contiguous sequence of bytes. If there is change of origin, a new segment will be created.
pyatasm, python wrapper for ATasm
ATasm is Copyright (c) 1998-2014 Mark Schmelzenbach pyatasm is Copyright (c) 2016 Rob McMullen (firstname.lastname@example.org)
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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
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