1. Suppose that SS= 53A2H, DS = 11D0H, BX = 12BOH, BP =12A0H and DI = 200H.
Determine the memory address accessed by each of the following instructions and also mention which type of addressing mode they belong:
a. MOV AL, [BP+2143H]
b. MOV [DI+2], AL
2. Write down the name with three example of all possible data addressing modes available with 8086 microprocessor.
3. Write down the differences between 8086 and 8088 microprocessor.
4. Suppose the initial physical address of a segment register is given by
OC5A:BECOH. Determine the physical address, top and base addresses of that segment register of 8086 microprocessor.
5. Draw the internal architecture of an 8086 microprocessor.
6. Show the schematic diagram of the following instructions after execution:
MOV CX, [1234H] PUSH CX POP BX
(Assume that SP = 1D50H and SS = 1000H before execution)
7. Mention whether the following instructions are right or not? If not, then explain why it is so. a)MOV [SI], [BP]
b) MOV CS, DS
C) MOV AL, BX
8. Suppose that DS = 2DEOH, SS = 3B41H, BP = 3CBOH and SI = 10EEH. Write
down the examples for the following addressing modes using the given registers and determine the physical address accessed by each of your given examples.
a) Base plus Index addressing mode
b) Indirect addressing mode
c) Register indirect addressing mode
9. Explain all the status flag registers in 8086 microprocessor and show all the flag registers in a diagram.
10. What is the significance of dividing the 8086 microprocessor into BIU and
EU? Explain in your words.
11. Explain the operations of BIU and EU of 8086 microprocessor.