More on logic
February 20th, 2007To read more about the content of today’s lecture, check out Appendix B.1-3 on the CD that came with your book.
Fluidic (water) computer!
February 16th, 2007In support of my claim that all you need are switches and wires! Water computer
Read Chapter 3
February 15th, 2007Sections 3.1 through 3.6
Quiz 1 Prep
February 12th, 2007I know you’re all wondering about the quiz on Thursday. Here are some warmup questions to help you prepare. You may bring your books and any written/printed notes you want. No computers, phones, or friends.
Come to class on Tuesday with your questions about anything we’ve covered and I’ll do my best to make all things clear.
I have gotten very positive reviews for the help some class members are giving to others and I commend you. I’ll certainly take such reports into account when assigning grades.
ASCII Chart
February 8th, 2007You may find this useful for problem set 4. You can read off the hex value for any ASCII character by taking the first nibble from the first column and the second nibble from the top row. So, for this assignment, you’ll need to convert an ASCII digit, say ‘4′ with code 0×34 to the numerical value 4. Simply subtract the code for ‘0′ from it. So subtracting 0×30 from an ASCII digit will give you the numerical value of the digit. Likewise, if you want to go from a small number, say 5, to its ASCII representation, simply add 0×30 to it. 5 + 0×30 = 0×35.
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
| 0 | NUL | SOH | STX | ETX | EOT | ENQ | ACK | BEL | BS | HT | LF | VT | FF | CR | SO | SI |
| 1 | DLE | DC1 | DC2 | DC3 | DC4 | NAK | SYN | ETB | CAN | EM | SUB | ESC | FS | GS | RS | US |
| 2 | SP | ! | “ | # | $ | % | & | ‘ | ( | ) | * | + | , | - | . | / |
| 3 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | : | ; | < | = | > | ? |
| 4 | @ | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O |
| 5 | P | Q | R | S | T | U | V | W | X | Y | Z | [ | \ | ] | ^ | _ |
| 6 | ` | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o |
| 7 | p | q | r | s | t | u | v | w | x | y | z | { | | | } | ~ | DEL |
Problem Set 4, More Programming
February 8th, 2007In problem set 4 you’ll wrestle with writing your own programs and think about the various representations for numbers. Feel free to work together in small teams on this assignment but the work you turn in should be your own. Include in the comments at the top of your program the names of the other students on your team. This is due before class on Thursday 1 March.
You should email your answers to our TA. Attach the files for the 3 problems to your email along with examples from the simulator running it.
Read in Chapter 2
February 8th, 2007Study sections 2.10 - 2.15
Assemblers and Compilers
February 8th, 2007Today we’ll look at the translation process from high-level languages to running programs. Lecture 8 slides.
Test 1 next Thursday
February 7th, 2007We’ll have our first test next Thursday on 15 February. It will cover the material in lectures 1 through 8. We’ll review for the test on Tuesday 13 February.
The test will be open book and notes.
Stacks and Procedures
February 6th, 2007Today we’ll look at how procedure calls are implemented in high-level languages. Lecture 7 slides.