Microprocessor 8086 Architecture -Module I

Which is the microprocessor comprises?

• Register section

• One or more ALU

• Control unit

• All of the mentioned

A 16-bits address bus can generate _____addresses.

• 32767

• 25652

• 65536

• None of the mentioned

Which of the following is a 16-bit register?

• AL

• AX

• AH

• All of the mentioned

_______ register is used as a default counter in case of string and loop instructions.

• AX

• BX

• CX

• DX

The number of address and data lines of 8086_________.

• 8 and 8

• 16 and 16

• 20 and 16

• 16 and 20

_______ is the most important segment and it contains the actual assembly language instructions to be executed by the microprocessor.

• Data segment

• Code segment

• Stack segment

• Extra segment

Instruction Pointer (IP) contains offset address of ________ segment.

• Data segment

• Code segment

• Stack segment

• Extra segment

In 8086 the overflow flag is set when______.

• The sum is more than 16 bit

• Carry and sign flags are set

• Signed numbers go out of their range after an arithmetic operation

• During subtraction

The SP is indicated by ________

• single pointer

• stack pointer

• source pointer

• destination pointer

The register AX is formed by grouping ________

• AH & AL

• BH & BL

• CH & CL

• DH & DL