A cross-assembler for the 6502 series of microprocessors.
Project maintained by michaelcmartin
Hosted on GitHub Pages — Theme by mattgraham
Ophis is an assembler for the 6502 microprocessor - the famous chip used in the vast majority of the classic 8-bit computers and consoles. Its primary design goals are code readability and output flexibility - Ophis has successfully been used to create programs for the Nintendo Entertainment System, the Atari 2600, and the Commodore 64.
A complete manual is available as PDF or online as HTML.
standalone Windows installer will be what most people
want. All you need is this file. It contains all the
examples and documentation. You will probably want to add
the install directory to your PATH to make it easier to
invoke from the command-line.
standalone script is for systems that have Python
installed and want to keep Ophis as a set of personal
files. It requires Python 2.3 or later to be installed on
the target machine. (Python 3 will not work - Python
3 is effectively a separate language.) This will be the most
convenient choice for most users on Mac and Linux.
- If you want to install with the distutils, a script is
part of the GitHub repository.