Exercise 5.41 - find-variable - lexical address from compile-time environment
the last changes to upstream code, plus one i missed from earlier - 5.38 still seems to run correctly
nope, had to tweak things slightly for 5.42
lexical addressing is working for the read direction! caught some bugs too
optimized as per problem description
Exercise 5.42 - lexical addresing in action - that is, putting the last 3 exercises together
optimized write as per problem description
hmm, this code didn't even run. never even tested it? hmmmmm
fixed some stupid old bugs in my untested answers
the object code doesn't lie - my current solution, which tries to desugar a let, tries to look up the value of '*unassigned*...
Exercise 5.43 - scanning out internal defines in the compiler too - not working with lexical addressing, and required a really questionable change to Exercise 4.16...