Node: MMIX-Chars, Next: MMIX-Symbols, Up: MMIX-Syntax

### Special Characters

The characters `*` and `#` are line comment characters; each start a comment at the beginning of a line, but only at the beginning of a line. A `#` prefixes a hexadecimal number if found elsewhere on a line.

Two other characters, `%` and `!`, each start a comment anywhere on the line. Thus you can't use the `modulus` and `not` operators in expressions normally associated with these two characters.

A `;` is a line separator, treated as a new-line, so separate instructions can be specified on a single line.