Netwide Assembler (NASM) is an asssembler for the x86 CPU architecture portable to nearly every modern platform, and with code generation for many platforms.
It supports a range of object file formats, including Linux and *BSD a.out, ELF, Mach-O, 16-bit and 32-bit .obj (OMF) format, COFF (including its Win32 and Win64 variants.)
It can also output plain binary files, Intel hex and Motorola S-Record formats.
Its syntax is designed to be simple and easy to understand, similar to the syntax in the Intel Software Developer Manual with minimal complexity. It supports all currently known x86 architectural extensions, and has strong support for macros.
This is free and open source.
Website: www.nasm.us
Support: GitHub Code Repository
Developer: NASM Authors
License: 2-clause BSD license, also known as the simplified BSD license
NASM is written in Assembly and C. Learn Assembly with our recommended free books and free tutorials. Learn C with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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