Quiz 07 ISA

Which of the following is a Machine Instruction?

• MOV

• ORG

• END

• OPN

Which of the following can be a machine instruction?

• MPY X,Y

• MPY X

• MPY X,Y,Z

• MPY

If the instruction format has an 8 bit opcode, What is the maximum number of instructions that the machine can execute?

• 64

• 256

• 128

• 512

Which of the following stores the output in memory address X?

• SUB X,Y

• SUB X

• SUB Z, Y, X

• SUB Y,X

Which of the following is/are control related instructions?

• Jump

• Branch

• Store

• Copy

If a computer has 1KB memory and 6 bit opcode, what is the minimum number of bits required for the full instruction?

• 12 bits

• 8 bits

• 16 bits

• 24 bits

If X = 11011 and Y = 10011 and Z = 01100, which gives the correct execution?

• AND Z,X,Y

• NAND Z,X,Y

• AND X,Y,Z

• NAND X,Y,Z

Instruction format contains .......

• Instruction length

• number of addresses

• size of various fields

• size of the memory

The instruction set is the programmer’s means of controlling the processor.

• True

• False

The programmer requirements must not be considered in designing the instruction set.

• True

• False