Addressing modes-1

How many addressing modes are used by 8051?

• 2

• 3

• 4

• 5

In the following instruction, which is the source operand?

MOV A,#25H

• A

• 25H

• 25

• Both A & 25H

MOV R2,#26H uses the following type of addressing mode

• Immediate

• Register

• Direct

• Indirect

In immediate addressing mode, the data can be in any of the following

• Hexadecimal

• Decimal

• ASCII character

• Binary

• All of the above

The following is an illegal instruction

• MOV A,#25H

• MOV B,A

• MOV R2,#256

• MOV DPTR,#23FEH

The 8051 microcontroller allows data move between R5 and R2 directly

• True

• False

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