MENG 2530_Week 4 Review

The GPR registers are used for storing data and memory addresses.

• True

• False

The GPR registers in ARM are ____ .

• 8 bit

• 16 bit

• 32 bit

• Depends on uC

Write instructions to store byte value 0x95 into memory location with address 0x40.

Evaluate responses using AI:

OFF

“LDR R6, [R3]” puts the result in ____________?

• R6

• R3

• Address pointed by R3

• Address pointed by R6

What does “STRB R1, [R2]” do?

• It copies R2 into location pointed to by R1.

• It copies the lower byte of R2 into location pointed to by R1.

• It copies R1 into location pointed to by R2.

• It copies the lower byte of R1 into location pointed to by R2.

The value in "MOV R2, #value" is ___ bits wide.

• 32

• 16

• 8

• any size

Which of the followings is(are) illegal?

• MOV R2, #0x50000

• MOV R3, #0x50

• MOV R1, 255

• MOV 123, 0x50

Which of the following is (are) illegal?

• ADD R2, #20, R1

• ADD R1, R1, R2

• ADD R5, R16, R3

• ADD R2, R1, #20

A given ARM has 0x3FFF as the address of the last location of its on-chip ROM. What is the size of on-chip Flash for this ARM?

• 4K

• 8K

• 16K

• 32K