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Assembly Tutorial - Getting Started

📅 2026-06-12 | 📂 Assembly

Assembly Basics

; x86-64 Hello World (NASM)
section .data
    msg db "Hello, World!", 10

section .text
    global _start
_start:
    mov rax, 1          ; sys_write
    mov rdi, 1          ; stdout
    mov rsi, msg
    mov rdx, 13
    syscall
    mov rax, 60         ; sys_exit
    xor rdi, rdi
    syscall

Summary

Assembly is the lowest-level programming language
Directly maps to machine instructions