4 ms·> Save it as fizzbuzz.S (that's a capital S as the extension) What's this about?by brundolf 5y ago> Save it as fizzbuzz.S (that's a capital S as the extension) What's this about?gen3 5y agoLowercase just runs it through the assembler, upper case also runs the C preprocessorsaagarjha 5y agoClang at least does not seem to care about the extension.