6.001 - Spring 1998
Sections 8 & 10 (Boning)

Last updated 5/17/98.

Section Reminders, News, Etc.

Course-wide news and reminders
Correction: In a parenthetical comment on the May 1 recitation handout summary for the apply-dispatch contract (page 4), it says the arguments appear in reverse order in argl. They correctly appear in forward order, not reverse order. The code and discussion in the handout is correct other than this mistaken comment.
(If you are curious how this mistake got there - it comes from a previous version of EC-EVAL. In the older version, the arguments are processed one at a time but CONSed onto the front of argl. This had the nasty effect of leaving the actual argument values in argl in reverse order. In the newer EC-EVAL code (discussed in the book and the handout) ADJOIN-ARG is used to put argument values onto the end of argl -- which is much cleaner.)

Recitation #26 - May 8: Memory Management and Garbage Collection --
- Postscript handout | PDF handout
- Answers to May 8 microquiz
- Extra information - register machines for stop and copy, mark sweep garbage collectors (optional)
  Postscript handout | PDF handout
Recitation #24 - May 1: Recursive Machines and Explicit Control Evaluator --
- Postscript handout | PDF handout
Recitation #23 - April 29: Register Machines --
- Postscript handout | PDF handout
Recitation #22 - April 24: AMB (Backtracking) Evaluator --
- Postscript handout | PDF handout
Recitation #21 - April 22: Analyze Evaluator --
- Postscript handout | PDF handout
Recitation #18 - April 3: Concurrency --
- Microquiz Solutions | Recitation notes
Recitation #13 - March 18: Environment Diagrams --
Recitation #8 - Feb. 27:
- Quoting and Symbols Handout -- Postscript | PDF
- Partial solutions/discussion to handout
Recitation #7 - Feb. 25: Practice with Lists
Recitation #3 - Feb. 11: Postscript | PDF

Recitation Instructor: Prof. Duane Boning, Room 39-567, 253-0931, boning@mtl.mit.edu
Office Hours: Monday 11:00-12:00; Friday 10:00-11:00
Section 8 -- 1 pm, Room 34-303:
- Tutor: Mike Allen -- mallen@mit.edu
Section 10 -- 2 pm, Room 34-303:
- Tutor: Alex Lee -- alexjlee@mit.edu

If you would like to see some examples of environment diagrams, as well as their use with object oriented models, you might find the following interesting: Objects with State and the Environment Model (from my Spring '96 recitations which I put on the web).
The "Not so micro quiz" used in recitation on Friday, March 5 is available here. I will give your quizes back to your Tutor for tutorials on Monday and Tuesday. In the meantime, it would be very valuable for you to finish working through the problems -- they are all things you should be able to do without hesitation.
I have posted solutions so you can check your answers. You really should work through the procedures and problems on your own, and only use these solutions to check your answers.
Problem Set 2 Hints
Course-wide news and reminders