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Assembly Language: Difference between revisions

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Processors understands only machine language instructions, which are ones and zeros. But develop software unly using ones and zeros is too hard and complex. As the solution there are the assembly languages for each the instruction sets, instructions are represented with symbolic code and a more understandable form.
Processors understands only machine language instructions, which are ones and zeros. But develop software unly using ones and zeros is too hard and complex. As the solution there are the assembly languages for each the instruction sets, instructions are represented with symbolic code and a more understandable form.
=== Advantages of understanding the assembly language ===
You will know:
* How applications communicate with the operating system, processor and BIOS
* The ways, data is represented in memory and other external devices
* Access and execution of instructions by the processor
* Access and processing data by instructions
=== Advantages of the assembly language ===
Less RAM
Less execution time
Suitable for time-critical jobs


== External links ==
== External links ==
https://www.tutorialspoint.com/assembly_programming/index.htm
https://www.tutorialspoint.com/assembly_programming/index.htm

Revision as of 20:42, 8 November 2024

Only the x86 instruction set is mostly described here.

Basics

What is Assembly Language

Assembly language is a low-level programming language for a computer or other programmable device.

What is the difference between the Assembly language and high-level programming languages

Each assembly language is specific for a given computer architecture (instruction set).

High level programming language are mostly portable across multiple systems.

How is the source code of an high-level programming language converted to the executable machine code

Via a Compiler

How is the source code of an assembly language converted to the executable machine code

Via an Assembler

List examples of some assemblers

NASM, MASM.

Why Assembly languages exist?

Each computer has a microprocessor with arithmetical, logical and control activities.

Each family of processors has its own set of instructions.

Processors understands only machine language instructions, which are ones and zeros. But develop software unly using ones and zeros is too hard and complex. As the solution there are the assembly languages for each the instruction sets, instructions are represented with symbolic code and a more understandable form.

Advantages of understanding the assembly language

You will know:

  • How applications communicate with the operating system, processor and BIOS
  • The ways, data is represented in memory and other external devices
  • Access and execution of instructions by the processor
  • Access and processing data by instructions

Advantages of the assembly language

Less RAM

Less execution time

Suitable for time-critical jobs

External links

https://www.tutorialspoint.com/assembly_programming/index.htm