Comments for at&t assembler are:
# this is a comment
/* this is a comment */
According to the fourth result Google gave me
//
and /* */
comments are only supported in .S
files because GCC runs the C preprocessor on them before assembling. For .s
files, the actual assembler itself (as
) only handles #
as a comment character, for x86.
For some other ISAs, GAS uses other comment characters, for example @
for ARM.