Stage0 – A set of minimal C compiler bootstrap binaries

label (Architecture specific size/properties) and/or @label1>label2 %label1>label2 displacements may be implemented should the specific architecture require it for human readable hex2 source files (such as ELF headers). The stage2 is dependent on the availability of text source files and at least a functional macro assembler and can be used to build operating systems or other “Bootstrap” functionality that might be required to enable functional binaries; such as programs that set execute bits or generate dwarf stubs. The stage3 is dependent on the availability of text source files and at least a functional M2-Planet level C compiler, FORTH and a Minimal Garbage collecting Lisp and can be used to build more advanced tools that can be used in bootstrapping whole operating systems with modern tool stacks.

Source: github.com