Question

1. If SI = 1000H, what does MOV [SI], BH do?

• Reads byte of data from memory location 1000H into BH
• Writes byte of data from BH into memory location 1000H
• Illegal, only DI can be used between [ ] s
• Illegal, mixed sizes

2. Translate the statement “All your friends are perfect” into a logical expression. Let P(x) be “x is perfect” and F(x) be “x is your friend” and the universe of discourse be all the people.

• ∀xF(x) → ∃xP(x)
• ∀x(F(x) → P(x))
• ∀xF(x) ∧ ∀xP(x)
• ∃xF(x) ∨ P(x)

3. The instruction is MOV BL,DS:[1234H] will assemble as a ___ instruction

• 2byte
• 3byte
• 4byte
• 6byte

4. A two-input NOR gate with inverted inputs is the same with ___.

• AND
• NOR
• OR
• NAND

Answer 1

SOLUTION:

Question: If SI = 1000H, what does MOV [SI], BH do?

Answer: Option B) Writes byte of data from BH into memory location 1000H

Explantion:

The MOV instruction copies the data item referred to by its second operand (i.e. register BH) into the location referred to by its first operand (i.e. a register - source index)

Syntax: Mov destination , source

Question: Translate the statement “All your friends are perfect” into a logical expression. Let P(x) be “x is perfect” and F(x) be “x is your friend” and the universe of discourse be all the people.

Answer: Option B) ∀x(F(x) → P(x))

Explanation:

Let F(x) be "x is your friend";

P(x) be "x is perfect"

Result: ∀x(F(x) → P(x))

Question: The instruction is MOV BL,DS:[1234H] will assemble as a ___ instruction

Answer: A) 2 byte

Explanation: Default it takes 16 bits which is 2 byte( 1byte = 8 bits).

Question: A two-input NOR gate with inverted inputs is the same with ____

Answer: D) NAND

Explanation : Output of the Inverted NOR similisr to the output from the NAND gate.

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