INT 14 - 3com BAPI SERIAL I/O - WRITE BLOCK AH = A4h CX = length of buffer in bytes DH = session ID (00h for external session managment) ES:BX -> buffer containing data Return: AH = return code (00h,01h,03h,07h,0Ah,0Bh) (see #00394) CX = number of bytes actually sent SeeAlso: AH=19h,AH=86h,AH=A0h"BAPI",AH=A5h"BAPI"