Online Office Hours Content
Online (Zoom) office hours are recorded to the cloud and accessible through the
Zoom plug-in in Blackboard. (Using Blackboard ensures that only students enrolled in the course can access the recordings.
That's why I don't put direct links here.)
Thursday 10 Sep
- Don't double-click JLS.jar. Use the command line.
- Brief JLS Demo.
- Consider setting up an alias for JLS and DLUnit
- Walk through In-Class 6 (building a ripple carry adder)
- Why ripple-carry adder is O(n) in time and size
Monday 14 Sep
- Walk through In-Class 7 (propagation delay)
- Look at subtleties of propagation delay in ripple-carry adder.
- What the time reported by JLS mean (and what it doesn't)
Thursday 17 Sep
- JLS Install hints
- Walk through two Practice Quiz 2 questions
- Need fixed upper bound on fan-in when using big-O
- Diminishing returns when applying Carry-Lookahead or Carry-Select pattern
Monday 21 Sep
- Notes about Project 1, changes to quizzes, and upcoming test.
- Review of two's complement and walkthrough of IC-9
- Overflow is not the same as CarryOut (project 1)
- Discussion of how to use mux to build subtractor
- Walkthrough of problem 3 on IC-10 (max of three numbers)
Tuesday 22 Sep
- Walkthrough of IC-10 problem 4 (make signed multiplier from unsigned multiplier)
Thursday 24 Sep
- Walkthrough of IC-10 problems 5, 1, and 2.
- Walkthrough of IC-11 (begins about 35 minutes in).
Thursday 1 Oct
- Review of course resources / policies / tools / workflow
- Partial solution to change problem from HW 4b
- I messed up the first part. Be aware that I backtrack and provide a different solution.
- Partial solution to "add time" problem from HW 4b
Monday 5 Oct
- Walkthrough of Rock-Paper-Scissors quiz question (1:15)
- Walkthrough of "Index of Maximum" quiz question (11:15)
- Walkthrough of two's complement (20:45)
- Signed/Unsigned overflow (26:30)
- Walkthrough of Blackjack problem from homework 4b (32:45)
- Flip-flop timing diagram (practice quiz) (40:15)
Monday 12 Oct
- HW6a, Problem 2 --- Characteristic table of alternate SR latch (1:45)
- HW6a, Problem 5 --- Characteristic table of circuit using flip-flops (17:15)
- HW6a, Problem 6 --- Prepare timing diagram (23:20)
- HW7a, Problem 2 --- Countdown timer (31:00)
Thursday 15 Oct
- In-Class 13, problems 1 - 5
Monday 19 Oct
- In-Class 13, problems 6 (lone_teen)
Thursday 22 Oct
- Practice Quiz 7, problem 1 (sum previous four)
- Practice Quiz 7, problem 4 (using the in-browser assembler)
- In-Class 14 (assembly using branches)