Discussion

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Schedule
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Ask

• Alma 526
•   26 And now behold, I say unto you, my brethren,
  if ye have experienced a change of heart, and if
  ye have felt to sing the song of redeeming love,
  I would ask, can ye feel so now?

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Exam II

• 31 July 1 August (Tue Wed) in Testing Center
• 100 questions
• Chapters 9 through 15
• Good idea to have scratch paper on hand
• Study slides
• Study homework
• Study book

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Exam II Review
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Exam II Review
1. Explain how each of the following data
structures operates a. FIFO b. LIFO c. Random
Access d. Stack 2. What are the differences
between high-level and low-level
languages? 3. What are the differences between a
interpreter and a compiler?
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Exam II Review
4. What are a pre-processor and linker used
for? 5. What is the difference between syntax
and semantics? 6. What does a C program look like
and how does it function? 7. What are valid C
labels? 8. What is the difference between local
and global variables?
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Exam II Review

• 9. How big of a number can be stored in an
• a. int?
• b. short int?
• c. unsigned int?
• d. char?
• e. float?
• f. double?
• 10. What is the difference between logical
  operators and bit-wise operators?
• 11. What is operator precedence used for and
  which operators bind the tightest?
• 12. How is variable scope determined?

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Exam II Review
13. What does the following LC-3 function
do? START add r6, r6, -2 str r2, r6,
0 str r3, r6, 1 and r0, r0, 0 and r3, r3,
0 add r2, r2, 0 brzp L02 not r2,
r2 add r2, r2, 1 add r3, r3, -1 L02 add r2,
r2, 0 brz L04 add r2, r2, -1 add r0, r0,
r1 brnzp L02 L04 add r3, r3, 0
brz L06 not r0, r0 add r0, r0, 1 L06 ldr r2,
r6, 0 ldr r3, r6, 1 add r6, r6, 2 ret
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Exam II Review

• 14. How many iterations will a while loop
  perform?
• 15. A switch decision is based on what types of
  variables?
• 16. What is considered a Boolean true value?
• 17. What purpose does a function declaration
  serve?
• 18. How does one exit from a do-while construct?
• 19. What would be functionally equivalent to a
  switch statement?
• 20. When is the default case executed?

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Exam II Review

• 21. What does ( !( x 1 ) ) evaluate to?
• 22. What kind of errors are caught by the
  compiler?
• 23. What does the reserved word break do?

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Exam II Review

• 24. What is printed to the output?

int x 4 main() int y x int x 15
int i 0 for (i 0 i int x i printf(d d\n, x, y)
printf(d d\n, x, y)
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Exam II Review

• 24. What is printed to the output?

int x 4 main() int y x int x 15
int i 0 for (i 0 i int x i printf(d d\n, x, y)
printf(d d\n, x, y)
0 4 1 4 2 4 3 4 15 4
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Exam II Review

• 25. What is printed to the output?

int x main() int y x int x 2
int x 3 funct(x) printf(d d\n,
x, y) printf(d d\n, x, y)
void funct(int x) printf(d\n, x) x
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Exam II Review

• 25. What is printed to the output?

int x main() int y x int x 2
int x 3 funct(x) printf(d d\n,
x, y) printf(d d\n, x, y)
void funct(int x) printf(d\n, x) x
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3 3 0 2 0