[OpenBIOS] Help with some code

[Tarl Neustaedter]

  You should get in the habit of putting stack diagram comments on every line 
of code - it will help you keep track of what you are playing with. By 
convention, a stack diagram starting with $ indicates a addr,len string 
pointer, which you should use in this code for clarity.

As best I can tell without stack diagrams, you are generating strings of the 
form "foo: set-foo foo ! ; foo", and it's probably barfing on "foo:" . I'm not 
sure what this is supposed to accomplish.

Replace the "eval" with a "type" and you should be able to see what it's 
generating.