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Third Party Tools

Featured Tools:

1.) EasySXB:

Created by: Joe Davisson

Website: http://joe.csoft.net/


EasySXB is a terminal emulator designed for use with the SXB line of 6502/65816-based board-level products from Western Design Center. A graphical interface is provided for quick access to monitor functions, such as changing registers or uploading programs.

The following products are currently supported:

* MENSCH Microcomputer (Use W65C265SXB option)
* W65C134SXB
* W65C265SXB

EasySXB Download

2.) Java Grinder:

Created by: Mike Kohn

Website: https://www.mikekohn.net/micro/java_grinder.php


Java Grinder is a tool that gives the ability to write programs in Java to run natively on microcontrollers, game consoles, and computers. Java Grinder is not a JVM, but instead translates byte-code from Java .class files into native assembly code much like a JIT or an “ahead of time” compiler. On the microcontrollers, there is a Java API to take advantage of the I/O ports, UART, SPI, and more. On the game console / computer side, there are Java API’s to manipulate the graphics and sound chips. Currently, the following CPUs / platforms are supported (click on links for videos):

3.) cc65:

Currently Supported by: Oliver Schmidt

Websites: http://cc65.github.io/cc65/ or  http://www.cc65.org/oldindex.php


cc65 is a complete cross development package for 65(C)02 systems, including a powerful macro assembler, a C compiler, linker, librarian and several other tools. It is based on a C compiler that was originally adapted for the Atari 8bit computers by John R. Dunning. The original C compiler is a Small C descendant but has several extensions, and some of the limits of the original Small C compiler are gone.

4.) Calypsi Tool Chain

Website: – www.calypsi.cc


Calypsi is a series of C compiler and assembly language cross-compiler tool chains. They support 6502/65C02/65816 and other processors. This tool suite supports Foenix Retro System products but could likely work with other platforms in the future.

Lists of other Development Tools:

6502.org is an amazing 65xx resource site.  Check out their Development Tools page for links to Emulators, Assemblers, Compilers, and more.