1.2.4

Machine codes are written in what form?​

• Binary

• Opcodes such as ADD, MOV, SUB, etc.

• Mnemonics

• Binary only

Which type of programming language uses codes such as ADD, MOV and DEL?

• High-level programming language

• Assembly language

• Machine code​

• Human language

Consider the instruction: ADD AX, 08h. What represents the opcode?

• ADD

• AX, 08h

• 08h

• AX

Which of the following is NOT a register?

• Accumulator

• Program counter

• MAR

• Mnemonic

Which of the following register performs the calculations and stores the result?

• Accumulator

• Program counter

• MAR

• Mnemonic

In which of the following instruction operands are not specified?

• DAT

• STA

• INP

• ADD

Where is the input from the user stored first when the instruction INP is used?

• Accumulator

• Memory location

• Variable

• Data point

What is the function of instruction DAT?

• Stores variable in the memory location

• Labels a memory location.

• Copies data to a register.

• Moves data from one register to another.

What instruction is used to stop the execution of a program?

• STOP

• OUT

• HLT

• FIN

Which of the following refers to a branch instruction?

• BRP

• CMP

• LDA

• STA