nasm_guide
this repository contains some examples and scripts, perhaps you can use it when learning nasm.
What is nasm?
nasm is a Assembly language compiler.
How to install nasm?
If you are using ubuntu, you can use this code.
sudo apt-get install nasm
Or use origin code to install, this is the offical website.
https://www.nasm.us/
And you can find offical docs in this website.
Fast Started
To compile a asm file:
Assume we edit a asm file like this:
global _start
section .data
message: db "hello,world",10
section .text
_start:
mov rax,1
mov rdi,1
mov rsi,message
mov rdx,13
syscall
end:
mov rax,60
xor rdi,rdi
syscall
And we name it with hello.asm. So, we shoule use this code to compile it.
nasm -f elf64 -o hello.o hello.asm
-f elf64 means we will get a elf64 format file. It can be run in linux-64bit. -o hello.o means the output file name.
In the last procedure, we have got a file named hello.o,it's can't be run now,To run it, we should use ld to link.
ld -o hello hello.o
We get a file named hello !
Run it!
./hello
We get a result !
hello,world
You can see some other example in folder examples