NASM, short for the Netwide Assembler, is an assembly language compiler designed for the x86 architecture.
It was invented by Simon Tatham and Julian Hall in 1996.
NASM is an open-source assembler, meaning its source code is freely available for modification and distribution.
It supports two main versions: x86-64, which is designed for 64-bit systems, and a 32-bit version for compatibility with older systems.
The x86-64 version allows programmers to take advantage of modern 64-bit processors and their extended registers.
The 32-bit version is ideal for developing software for legacy hardware or operating systems.