9.8.4.1 Special Characters .......................... The character '#' is a line comment character. It starts a comment if and only if it is placed at the beginning of a line. A ';' character starts a comment anywhere on the line, causing all characters up to the end of the line to be ignored. A '@' character is handled as a line separator equivalent to a logical new-line character (except in a comment), so separate instructions can be specified on a single line.