The Evaluator

CLtL2 Reference

Run-Time Evaluation of Forms

CLtL2 Reference 

function EVAL : (form) 

function CONSTANTP : (object &optional env)

The Common Lisp functions evalhook and applyhook are not supported in SubL.

The Top-Level Loop

CLtL2 Reference 

variable * 

variable ** 

variable ***

For convenience, the top-level readloop binds the following variables after each form is evaluated:

*	the last value returned
**	the previous value of *
***	the previous value of **