Interpreter for a minimal LISP-like language (in 1k lines of C)

To build and test the interpreter, just type:

make ./lisp <test.lisp 

The interpreter consists of four C files:

• gc.c: a simple copying garbage collector
• mem.c: primitives for the dynamic type system + runtime stack
• core.c: a library of stack machine functions
• lisp.c: the LISP interpreter itself, implemented using the stack machine

In the interest of keeping things simple, only the most basic functionality is implemented.