Depends on your specific purpose/environment, perhaps. If you want ARM, FASM can also do that: https://arm.flatassembler.net/ https://arm.flatassembler.net/ I

Depends on your specific purpose/environment, perhaps. If you want ARM, FASM can also do that: https://arm.flatassembler.net/ https://arm.flatassembler.net/ I mostly use NASM for x86-based OS kernel experiment because sadly FASM won't run on recent Macs, since it's written in 32 bit asm.