yasm: yasm (modular assembler) yasm: yasm: The Yasm Modular Assembler is a portable, retargetable assembler yasm: written under the (2 or 3 clause) BSD license. yasm: Yasm currently supports the x86 and AMD64 instruction sets, yasm: accepts NASM and GAS assembler syntaxes, outputs binary, ELF32, yasm: ELF64, COFF, Win32, and Win64 object formats, and generates source yasm: debugging information in STABS, DWARF 2, and CodeView 8 formats. yasm: yasm: yasm: