How to Run NASM on Windows

Last Updated: November 3, 2020

Learning assembly language can be difficult, but it might also be a requirement for certain curricula. To start learning, you can use CodeBlocks, a free C compiler, paired with nasm (netwide assembler).

Steps

1
Download codeblocks from Code Blocks Downloads.
2
Download nasm from netwide assembler.

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3
Install the codeblocks by running the setup.exe file you downloaded.
4
Extract and install nasm into the codeblocks folder, e.g., C:\Program Files\CodeBlocks\MinGW\bin.
5
Check whether the installation is working or not by the source code below for a test run. This is a Win32 console program that writes "Hello, World" on one line and; then exits. It needs to be linked with a C library.
6
Save the source code above as helloworld.asm in the location: C:\Program Files\CodeBlocks\MinGW\bin.
7
Run nasmpath.bat. Enter this command: nasm -f win32 helloworld.asm. It should produce a helloworld.obj file in the same directory.
8
Execute the object file by typing: gcc helloworld.obj. It should build a file named a.exe.
9
Type a.exe to run the test program and get your result. The words "Hello, World" should display on the screen.

Method 1

Method 1 of 1:

Code

        global  _main
        extern  _printf
        section .text
  _main:
        push    message
        call    _printf
        add     esp, 4
        ret
   message:
        db      'Hello, World', 10, 0