NASM是一个为可移植性与模块化而设计的一个 80x86 的汇编器。它支持相当多的目标文件格式，包括 Linux和 NetBSD/FreeBSD , a.out , ELF , COFF ,微软16位的 OBJ 和 Win32 。它还可以输出纯二进制文件。它的语法设计得相当的简洁易懂，和 Intel 语法相似但更简单。它支持 Pentium , P6 , MMX , 3DNow! ,

SSE and SSE2 指令集-NASM is a modular designed for portability and an 80x86 assembler. It supports quite a few object file formats, including Linux and the ' NetBSD/FreeBSD' , ' a.out' , ' ELF' , ' COFF' , Microsoft 16-bit ' OBJ'　and ' Win32' . It can also output plain binary files. Its syntax is designed to be fairly easy to read, and Intel syntax is similar but simpler. It supports the ' Pentium' , ' P6' , ' MMX' , ' 3 DNow! ' ,'　SSE ' and'　SSE2 ' instruction set