Basic Arithmetic Operation

Addition, Subtraction, & AND operation

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expt1g.asmLast updated: Sep 21, 2026

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Output Terminal

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Basic Arithmetic Operation

Explanation

1. Purpose

This 8085 assembly language program demonstrates how to perform basic arithmetic (addition and subtraction) and logical (bitwise AND) operations using registers. The calculations are performed sequentially, with the final result stored in the Accumulator.

2. Key Concepts

Accumulator (Register A): The central register where math/logic operations occur and results are stored.
Immediate Addressing (MVI): Loading a specific hexadecimal value directly into a register.
Arithmetic & Logic Instructions (ADD, SUB, ANA): Performing operations between Register B and the Accumulator.
Halt (HLT): Stopping program execution.

3. Code Walkthrough

| Line | Instruction

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Basic Arithmetic Operation

Explanation

1. Purpose

This 8085 assembly language program demonstrates how to perform basic arithmetic (addition and subtraction) and logical (bitwise AND) operations using registers. The calculations are performed sequentially, with the final result stored in the Accumulator.

2. Key Concepts

Accumulator (Register A): The central register where math/logic operations occur and results are stored.
Immediate Addressing (MVI): Loading a specific hexadecimal value directly into a register.
Arithmetic & Logic Instructions (ADD, SUB, ANA): Performing operations between Register B and the Accumulator.
Halt (HLT): Stopping program execution.

3. Code Walkthrough

| Line | Instruction