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AX = 00BCh BX = frequency in Hertz (18-32767) CX = duration in clock ticks (0000h or negative for continuous sound)
Notes: The FGDRIVER functions are rearranged with each major release, but their parameters do not change (see #03474 at AX=0000h). This call is ignored if asynchronous sound (AX=00A5h,AX=00A8h, AX=00AAh) is already in progress
See Also: AX=0059h - AX=0080h - AX=00BDh - AX=00C0h -
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