Square Number in x86_64 Assembly

This program seems simple. It's only complex because it's made with x86_64 assembly.

C++ equivalent: std::cout << argv[1] << "^2 = " << argv[1] * argv[1];

Requirements

• An x86_64 compatible processor
• Linux operating system (i think idek)
• An assembler (e.g., nasm)
• A linker (e.g., ld)

Building the Program

1. Clone the repository or download the source file.

2. Assemble the code:

nasm -f elf64 -o main.o src/main.asm
nasm -f elf64 -o syscalls.o src/syscalls.asm
nasm -f elf64 -o len.o src/len.asm
nasm -f elf64 -o numbers.o src/numbers.asm

3. Link the object files

ld -m elf_x86_64 -o square main.o syscalls.o len.o numbers.o

4. Run the program

./square 5
5^2 = 25