COA Quiz 22.01.2021 20-21 AY

format is usually used to store data.

• BCD

• Decimal

• Hexadecimal

• Octal

The 8-bit encoding format used to store data in a computer is

• ASCII

• EBCDIC

• ANCI

• USCII

The small extremely fast, RAM’s are called as

• Cache

• Heaps

• Accumulators

• Stacks

The instruction, Add #45,R1 does

• Adds the value of 45 to the address of R1 and stores 45 in that address

• Adds 45 to the value of R1 and stores it in R1

• Finds the memory location 45 and adds that content to that of R1

• None of the mentioned

In the case of, Zero-address instruction method the operands are stored in

• a) Registers

• b) Accumulators

• c) Push down stack

• d) Cache

The addressing mode which makes use of in-direction pointers is

• a) Indirect addressing mode

• b) Index addressing mode

• c) Relative addressing mode

• d) Offset addressing mode

In the following indexed addressing mode instruction, MOV 5(R1), LOC the effective address is

• EA = 5+R1

• EA = R1

• EA = [R1]

• EA = 5+[R1]

The addressing mode/s, which uses the PC instead of a general purpose register is

• a) Indexed with offset

• b) Relative

• c) Direct

• d) Both Indexed with offset and direct

The effective address of the following instruction is MUL 5(R1,R2).

• a) 5+R1+R2

• b) 5+(R1*R2)

• c) 5+[R1]+[R2]

• d) 5*([R1]+[R2])

addressing mode is most suitable to change the normal sequence of execution of instructions.

• a) Relative

• b) Indirect

• c) Index with Offset

• d) Immediate