Assembly Code File Extension

assembly file-extension
Zach Brantmeier picture Zach Brantmeier · Oct 3, 2013 · Viewed 22.5k times · Source

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

Answer

Carl Norum picture Carl Norum · Oct 3, 2013

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.

Related questions

What's the purpose of the LEA instruction?

For me, it just seems like a funky MOV. What's its purpose and when should I use it?

Read More
Is it possible to "decompile" a Windows .exe? Or at least view the Assembly?

A friend of mine downloaded some malware from Facebook, and I'm curious to see what it does without infecting myself. I know that you can't really decompile an .exe, but can I at least view it in Assembly or attach …

Read More
How do you get assembler output from C/C++ source in gcc?

How does one do this? If I want to analyze how something is getting compiled, how would I get the emitted assembly code?

Read More