!                Literal-Character Operator                     MASM Operator

!character

Forces the assembler to treat character literally.

Notes:     This operator can only be used in macro definitions
(including repeat blocks) or with conditional-assembly
directives.

!character, which is equivalent to , allows
you to incorporate special characters, such as ';' and
'&' into symbols.

See also: &
See also: <>
See also: %
See also: ;;

! Literal-Character Operator