Int 78 Fn 14  - Targa.dev - Send Scsi Command And Data (dma)               [d]

   AH = 14h
   DS:SI -> command bytes
   ES:BX -> data storage area
   DX:CX = number of data bytes to transfer

Return: AH = SCSI status byte (if early return mode is clear)
   CF clear if successful
       AL = SCSI message byte (if early return mode is clear)
   CF set on error
       AL = error code (see AH=00h)

Note:  this command sends data using DMA

See Also: AH=12h,AH=13h

Format of SCSI Command:
Offset Size    Description
 00h   BYTE    length of command
 01h   ??? command bytes