Category: vendor-specific BIOS extensions

INT 15 - Olivetti Quaderno - INITIALIZE DIGITAL SIGNAL PROCESSING???

	AX = 44C0h
	ES:DI -> new DSP procedure (exchanged with CMOS[28h])
	ES:SI -> ??? buffer
Return: ES:DI -> old DSP procedure
	ES:SI buffer filled with ten bytes from CMOS (addresses 14h-1Ch)
	  followed by 00h (addresses 15h-1Ch copied only if less than 21h)
Note:	this function is also supported by XBIOS.COM
SeeAlso: AX=44C9h