Need help with computer architecture problems.

1a. During an instruction, the content of address 0000 F00F was an operand such that the final perand value is 000F000F. What type of addressing mode is this?

1b. During an instruction, the content of register Ax is an operand such that the final operand value is 0000100F. What type of addressing mode is this?

2. Given the following assembly instruction: MOV R2 DE

Note: R2 is a register, DE is a memory address

A. What is the addressing mode of the destination address?

B. What is the addressing mode of the source address?

3. Suppose a process page table contains the entries below:

page frame valid bit

0 1 1

1 ---- 0

2 0 1

3 3 1

4 ----- 0

5 ------ 1

6 2 1

7 ------ 1

A. Describes everything that happens if data in page 0 is required.

B. Describes everything that happens if data in page 4 is required.