INT 16 - KEYBOARD - AX PC - READ SHIFT KEY STATUS AH = 51h Return: AL = standard shift key states (see #00582,#00587) AH = Kana lock (00h off, 01h on) Note: also supported by K3PLUS v6.00+, but K3PLUS always returns AH=00h SeeAlso: AH=02h,AH=12h,AH=22h