1. How many binary patterns can you create with 6 bits?

12

16

24

32

64

128

2. The first step in the Instruction Cycle is ________.

data write back

fetch

decode

execute

None of the above.

3. Which of the following are advantage of programming in assembly language? (Select all that apply.)

easy to learn compared to high-level languages

compact programs

highly portable

fastest code

direct hardware access

4. During which phase the instruction cycle is an instruction retrieved from memory?

Fetch

Decode

Execute

Re-write

None of the above.

5. Inside the CPU, which register keeps track of where the next instruction fetch comes from?

R0

R1

IR

PC

None of the above.

6. In the ARM chip, register ________ is the stack pointer.

7. Each register in the ARM Cortex CPU programmer's model is ________ bits wide

8. Which instruction would you use to load register R4 with 20000008 hexadecimal?

LDR R4, #20000008

MOV R4, #0x20000008

LDR R4, =0x20000008

None of the above.

9. Assume that R8 contains the value 20000000 hexadecimal. Which instruction would you use to load the 32 bit word addressed by R8 + 4 into R1?

LDR R8, R1

LDR R1, [R8, #4]

LDR [R8], R1

MOV R1, R8

None of the above.

10. Assume that R0 contains the hexadecimal value 20000000. If you want to store the 32 bit value in R5 at the address 20000008, without changing the value in R0, which instruction would you use?

STR R5, [R0]

STR [R0], R5

STR R0, [R5, #8]

MOV [R0], R5, #4

None of the above.

11. You are using R1 as a loop counter and you want to add one to the register content. Which instruction would you use?

MOVS R1, #1

ADDS R1, #1

ADD #1, R1

LDR R1, #1

None of the above.

12. Consider the width of the ARM registers and data bus. The natural size data type for the ARM Cortex family is ________ bits. (Please enter a number.)

13.If our CPU can execute one instruction every 32 ns, how many instructions can it execute in 0.1 s ?

2 000 000

48 000 148

9 225 100

3 125 000

none of the above.

14. If you were translating an if..else statement from pseudocode to ARM assembly language, and the logical operator used in the if was ==, which branch would you use following the CMP instruction?

BEQ

BLO

BGE

BNE

None of the above.

15. If you were translating an if..else statement from pseudocode to ARM assembly language, and the logical operator used in the if is >, which branch would you use following the CMP instruction?

BNE

BEQ

BLO

BLS

BHS