Category: <b>vendor-specific BIOS extensions</b>
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<pre><b>INT 6F - HP Vectra EX-BIOS - "F_SND_TONE" - SOUND TONE WITH FREQ AND DURATION</b>

	AH = 3Eh
	BP = 0012h (driver ID of V_SYSTEM)
	BX = frequency in Hz (1-25000, 0 = off)
	DX = duration in 10-microsecond increments
Return: AH = status (see <a href=../../it/44/37.html>#03744</a>)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=3Ah/BP=0012h,AH=3Ch/BP=0012h,AH=40h/BP=0012h
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