Int 14 Fn 6F02  - Hp Vectra Ex-bios - "f14_put_buffer" - Transmit Buffer   [S]

   AX = 6F02h
   CX = number of characters in buffer
   DX = port number (0-3)
   ES:DI -> buffer containing characters

Return: AH = line status (see #0230)
   AL = modem status (see #0231)
   CX = number of bytes actually sent
   ES:DI -> next byte to be transferred (unchanged if all bytes sent)
Desc:  send characters from the specified buffer until all characters have
     been sent or an error/timeout is encountered

Note:  supported by original HP Vectra AT and by ES/QS/RS series Vectras

See Also: AX=6F00h,AX=6F03h,AX=6F04h,INT 17/AX=6F02h