This program is a simple assembly code that takes a single-digit integer as input, calculates the square of that number, and prints the result on the screen.

• NASM (Netwide Assembler)
• GNU linker (ld)

1. Assemble the code using NASM:

nasm -f elf32 square.asm -o square.o

2. Link the object file using ld to create the executable:

ld -m elf_i386 square.o -o square

3. Run the executable:

./square

The program will prompt you to enter a single-digit number. Enter the number and press Enter.

The program will display the square of the entered number.

Please note that this code only supports single-digit integers as input. For multi-digit integers or more complex operations, consider modifying the code accordingly.