Category: sound/speech

INT 80 - SBSIM - "GETVOLUME" - GET SOURCE'S VOLUME

	BX = 0400h
	AX = sound source (see #03974)
Return: CF clear if successful
	    AX = volume
	CF set on error
	    AX = error code (see #03972 at INT 80/BL=00h)
SeeAlso: BX=0401h"SBSIM"