John's Mutant contains several projects. The current project is an ECMA-55 Minimal BASIC compiler for Linux systems using AMD64 compatible CPUs. You can download the MinimalBASIC compiler source in the Files section.
This project provides a tool-chain for compiling C code for the SPEAR2 processor. It comprises a C compiler (GCC), an assembler/linker, a macro assembler, a basic library and a simulator.