INT 10 - Diamond Viper V330 - ??? AX = 4F0Bh ECX = ??? ??? Return: AL = 4Fh if function supported AH = status 00h successful ECX = ??? ??? 01h failed Note: in BIOS v1.62, ECX is in multiples of 10000 (decimal) for both input and output, and this function never fails