VTU Notes | 18EC35 | COMPUTER ORGANIZATION AND ARCHITECTURE

VTU 18EC35 Module-2 |

Module-2

4.9
2018 Scheme | ECE Department

Created by VtuNotes.in
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5 Modules

18EC35 | COMPUTER ORGANIZATION AND ARCHITECTURE | Module-2 VTU Notes

Summary:

A short summary of the concepts "Addressing Modes, Assembly Language, Basic Input and Output Operations, Stacks and Queues, Subroutines, Additional Instructions" for VTU (Visvesvaraya Technological University) notes:

1. Addressing Modes:

Addressing modes in computer architecture define how the CPU accesses data and instructions in memory. Common addressing modes include direct, indirect, immediate, and indexed addressing, each serving specific purposes in assembly language programming.

2. **Assembly Language**: Assembly language is a low-level programming language that represents machine code instructions using mnemonics and symbols. Programmers use assembly language to write programs that can be directly executed by the computer's CPU.

3. Basic Input and Output Operations:

Input and output (I/O) operations are fundamental for communication between a computer program and external devices. Assembly language provides instructions to perform basic I/O operations, such as reading from the keyboard and writing to the screen or files.

4. Stacks and Queues:

Stacks and queues are data structures used for organizing and manipulating data in a specific order. Assembly language provides instructions to manage and manipulate the stack and queue data structures, making it essential for efficient program execution.

5. Subroutines:

Subroutines, also known as functions or procedures, are reusable blocks of code that can be called from within a program. Assembly language supports subroutines through CALL and RET instructions, enabling modular and structured programming.

6. Additional Instructions:

Beyond the basic arithmetic and logical operations, assembly language often includes a set of additional instructions specific to the architecture. These instructions can vary from one CPU to another and provide extended functionality for programmers.

Understanding these concepts is crucial for students and developers working with low-level programming and computer architecture. They form the foundation for efficient and optimized program development in assembly language.

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