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1. What kind of dependence determines the ordering of an instruction so that the non-branch instruction is executed only when it should be? a. Control dependence |
2. What are the two properties critical to program correctness, and normally preserved by control dependence? a. Exception behavior and data flow |
3. What is an approach whereby the hardware rearranges the instruction execution to reduce the stalls? a. Static scheduling |
4. Are the loop iterations in the following code independent? a. Yes |
5. What is true about VLIW? a. Multiple instructions are executed per cycle that get scheduled by the compiler |
6. What does a register window seek to improve? a. The overhead for procedure calls and returns |
7. for (i=1; i<= 1000; i=i+1;) x[i] = x[i] + y[i]; is an example of what? a. Instruction fetch |
8. What is a technique used to generate additional parallelism? a. Trace scheduling |
9. This is resetting your computer so that the microprocessor runs faster than the manufacturer-specified speed. a. Thrashing |
10. This is the continuous and somewhat overlapped movement of instructions to the processor. a. Flow control |
11. This is the data path and physical interface between the processor and the L1 and L2 memory. a. Backlink |
12. This is a group of microchips designed to work as a unit to perform one or more related functions. a. Biochip |
13. This is computer object code that is processed by a program rather than by the hardware processor. a. Critical section routine |
14. This is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. a. Shared memory |
15. Big-endian is a …. a. A computer architecture that stores multiple-byte numerical values with the most significant byte (MSB) values first. |
16. Interrupts can be generated in response to a. Detected program errors such as arithmetic overflow or division by zero |
17. Cache memory refers to a. cheap memory that can be plugged into the mother board to expand main memory |
18. How many bits do you need for a logical memory size of 1024K? a. 13 |
19. Write the largest possible positive integer with two’s complement representation in 4 bits? a. 16 |
20. Write the largest possible positive integer with two’s complement representation in 8 bits? a. 256 |
Answers
1. a | 2. a | 3. b | 4. a | 5. d | 6. a | 7. b | 8. a | 9. d | 10. e |
11. b | 12. c | 13. d | 14. b | 15. a | 16. e | 17. b | 18. b | 19. d | 20. b |
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