IT PhD Computer Journal

Assembler is a low-level programming language. Below it there is only machine code (zeros and ones).

Why learn assembler?

1. To understand how a computer works. Any programmer must know C. Any programmer who knows C must know Assembler.
2. The ability to reverse engineer software (we live in a copyist world). For me this is first of all the vintage games of the 90s, the sources of which have not survived.
3. ok. commercial development. If your device doesn’t have enough memory. – You write in asm. Microcontrollers, loaders, embedded software. If you need everything to run faster than lightning for a particular system – you also write directly to the processor, this is more efficient.
4. WebAssembly (wasm) 🙂 This is not a programming language, but a technology that is now taking over the web. You don’t have to write in assembler there, but it is useful to understand assembler for code optimization.
5. And analysis of all sorts of viral crap. Computer security and anti-virus labs are where assembler comes in handy.

Continue reading →

Hello World in assembly language. How much fun is in that! For starters, here’s what we’re going to dig into in asm, the classics:

#include <stdio.h>
int main(void)
{
    printf("Hello, world\n");
    return 0;
}

On GNU assembly it would be something like this:
Continue reading →