LazyBoy - Sound

%imacro Sound 1

Prefers: AX

Set the PC Speaker frequency in Hertz (up to 65535).

Examples:

        Sound   ax      ; Play PC Speaker using AX Hertz
        Sound   500     ; Play PC Speaker at 500 Hertz
        Sound   0       ; Same as NoSound.

The LazyBoy Library Manual - Sound

Part of the CRT group.