Assembly Code File Extension

Question

I'm just beginning to learn assembly code, and am still unsure about something; what file extension would assembly code source use?

Answer 1

You can (probably) use whatever you want. Some common ones are .s, .S, and .asm. Check your compiler/assembler documentation to find out if one is preferred for your system/toolchain. GCC and Clang, for example, will assume a file contains assembly code if you use a .s extension. If you use something else, you need to pass an appropriate -x flag to have the front-end do the right thing.