INT 14 - I1541 - RECEIVE A BYTE FROM A DEVICE AX = 400Bh Return: CF clear if successful AL = byte received CL = last-byte flag 00h more bytes to follow 01h received byte is the last CF set on error AL = error number 80h EOI response required 81h talker not ready 82h clock not set 83h clock not released CL = 00h SeeAlso: AX=4000h,AX=400Ah