The computer world is hardware and software together, and the two complement each other. No computer can start without hardware or software. In order for software to communicate with computer hardware and execute user commands, we need to enable programming languages that have access to the hardware. These languages are hardware programming languages. In this article, we have tried to acquaint you a little with machine language.
Low level language
Computer programming takes place at two different levels. One with low-level languages and one with high-level languages. What do these names mean now? Why is one low level to one high level?
Low-level languages communicate directly with the computer processor and can execute basic programming commands. Such as Machine Languages and Assembly Languages.
High-level languages are more understandable to humans because they use commands similar to English words for their instructions. The main logic of designing high-level languages has been to make the programming process easier for programmers. Such as C, C ++, Java, Python and so on.
When designing computer hardware, a unique language is for the computer itself, which is machine language. It contains instructions, which can execute directly by the computer. This language generally contains a string of numbers that allows the computer to perform the main operations associated with it each time it starts.
Every computer directly understands only the language of its machine. Understanding machine language is tedious and difficult for humans because it bears little resemblance to ordinary mathematical symbols or human language, and its codes vary from computer to computer. For this reason, machine code is almost never for writing programs.
Scope of application of machine level languages
In machine language, instead of using English commands, the numbers zero and one or binary digits are for writing commands. Which often turn into hexadecimal devices for human observation and correction.
The question is, what is the use of it? To answer briefly, the use of machine language is CPU programming. but how?
A processor is millions of tiny switches that can turn on and off. If we turn off and turn on some of these special switches, we can ask the processor to do the job we want.
In this way, instead of turning these switches on and off manually, the machine language with zeros and ones allows us to turn the switches on and off. (Zero means off and one means on.) And this way we dictate our command to the processor.
Given its programming language was tedious for many programmers, and on the other hand there is a high probability of error in it, programmers designed a language called assembly. Assembly language is one level higher than machine language. The assembly uses mnemonic code for instructions. Many programmers use assembly language where it requires high speed and efficiency. The assembly works with CPU registers in its commands.
What are the similarities between machine and assembly languages?
Regarding the similarities between machine language and assembly language, it is that they are both low-level programming languages. Also, both depend on the processor architecture, meaning that each processor family has its own machine language and assembly.
So an Intel processor does not understand the language of the machine and the assembly of the powerPc processor, and vice versa. But there are some processors that interact well with other processors, such as AMD processors that are compatible with Intel processors.
Differences between machine and assembly languages
Despite the similarities between the two languages, there are some differences that is:
The processor execute Machine code directly, but you must translate assembly code into machine language to execute.
It is possible for humans to understand assembly codes. But the machine code is a computer language.
Assembly language uses short English letters in its instructions, but machine language instructions are strings of numbers zero and one.