nasm: nasm (NASM assembler) nasm: nasm: NASM is the Netwide Assembler, a free portable assembler for the Intel nasm: 80x86 microprocessor series, using primarily the traditional Intel nasm: instruction mnemonics and syntax. nasm: nasm: NASM was written by Simon Tatham and Julian Hall. nasm: nasm: Homepage: http://www.nasm.us nasm: nasm: