NASM, also known as the Netwide Assembler, is an
Intel syntax assembler (as opposed to
GAS's
AT&T Syntax) that runs on many
platforms, such as
MS-DOS (
DJGPP),
Win32 (
Cygwin),
Linux (
RPM), etc.
It's license is under the
LGPL, and it's source is available via
CVS. The latest version NASM (0.98.38) can be found at http://nasm.
sourceforge.net or at http://
sourceforge.net/projects/nasm.
NASM's
syntax is closer to the actual
machine code than most other assemblers, as it has fewer redundant macros than
MASM or
TASM, and it will
assemble for almost any OS.
In addition, NASM will
compile into many different object
formats, such as MS (.OBJ),
COFF (.o), etc. It also supported by
RHIDE (Which calls to NASM to build the .o files, then uses GNU linker). It can also build
COM files and
SYS files on its own.
On the whole, NASM is a versatile compiler, especially for those who don't write in
AT&T Syntax Assembly and it also comes with its own
disassembler called NDISASM.
This writeup is under the GNU Free Documentation License