Recap: Clean Exit
Part of the Fundamentals section of Coddy's Assembly journey — lesson 34 of 45.
You have learned about syscalls, the exit syscall, and exit codes. Now you will put everything together to write your first complete working program.
A complete program needs:
| Component | What it does |
|---|---|
section .text | Where your code goes |
global _start | Tells the linker where the program starts |
_start: | The label where execution begins |
| Exit syscall | Ends the program cleanly |
What makes a valid program:
Your program must have all of the above. The exit syscall uses mov rax, 60, sets rdi to an exit code, and calls syscall.
Why this matters:
You have moved from writing individual instructions to writing complete programs. Every program you write from now on will follow this same structure.
Challenge
Write a complete assembly program that exits with exit code 0 (success). Use the standard structure: section .text, global _start, _start:, and the exit syscall.
Try it yourself
; TODO: Write a complete program that exits with exit code 0
; Use section .text, global _start, _start:, and the exit syscall
All lessons in Fundamentals
1The Machine
What is CPUMemoryRegisters vs MemoryHow instructions workTwo-File PatternThe x86-64 Architecture