NASM homepage [docs] [download]
- The Netwide Assembler, NASM, is an 80x86 assembler designed for portability and modularity. It supports a
range of object file formats, including Linux a.out and ELF, NetBSD/FreeBSD, COFF, Microsoft 16-bit OBJ
and Win32. It will also output plain binary files. Its syntax is designed to be simple and easy to understand, similar
to Intel's but less complex. It supports Pentium, P6 and MMX opcodes, and has macro capability.