Microprocessor & Microcontroller Basics

Memory size of 8086 microprocessor

• 1MB

• 4KB

• 256 bytes

• 128bytes

The number of General Purpose Registers present in 8086 microprocessor

• 4

• 14

• 10

• 34

The starting address of the segment is called

• base address

• offset address

• effective address

• none of the above

CX is associated with which instruction

• add

• loop

• inc

• dec

NMI stands for

• Not memory instruction

• not maskable interrupt

• non maskable instruction

• none of the above

Address latch enable pin is used to

• multiplex address and data lines

• demultiplex address and data lines

MOV AX,[1234H] Type of addressing mode used

• Immediate addressing mode

• direct addressing mode

• register relative mode

• base index mode

NEG (Negate) instruction does the following instruction

• 2s complement

• 1s complement

MOV CX,[BX+DI] type of addressing mode

• register relative addressing mode

• base plus index addressing mode

(a)