+1 862 207 3288 computer science
Paper instructions:
CSCI 101: Intro to Computer Science
Assignment 5. Due: Mon, Jul 14
Solutions will be posted on Wed, Jul 16
Please save your work in a single text file hw5.txt and put on server before midnight of the day above. Check here for instructions how to upload the files.
(3×5=15 points) Convert the following binary numbers to decimal:
1111
101001
110011
(3×5=15 points) Convert the following decimal numbers to binary:
45
258
1111
(2×5=10 points)
Convert the following HEX number to decimal: CAB
Write your first name in ASCII code.
(2×10=20 points) Write PIPPIN programs to perform the following tasks:
Swap the contents of cells 5 and 6
Compute the absolute value |X| of a number stored in a cell X. The absolute value is defined as follows:
if X > 0, then |X| = X
if X < 0, then |X| = -X
For example, 5 > 0, so |5| = 5.
On the other hand, -3 < 0, so |-3| = -(-3) = +3.
(20 points) Write a PIPPIN program to compute X=(A+B)*(C+D), assuming A,B,C,D, and X are stored in cells 100, 101, 102, 103, and 104 respectively.
(2×10=20 points) Draw the parse trees for the following algebraic expressions:
((x + y) + z) * (x + z)
1 + (2*(1 + 2*(1 + x)))
You can use Paint to draw the parse trees, or just type them in the text mode. For example, following the second approach a parse tree for the expression (a + b) * c should look like this:
a b
\ /
+ c
\ /
*
Make sure to doublecheck that your file is on the server.
Check here for resolving possible problems with the server.
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