Int 2F Fn 5206  - Jam.sys V1.10+ - "read" - Physical Read Data From Jam A  [k]

   AX = 5206h
   DL = drive number (0-default, 1-A:, etc.)
   DS:BX -> disk transfer packet (see #2522)

Return: AH = status (00h,01h,04h,06h,07h,08h,0Dh) (see #2521)
   AL = host drive error code (see #2285 at INT 2F/AX=0802h)
Program: JAM.SYS is a main component of the JAM Real-Time Data Compression
     Utilities by George A. Reznik and friends (JAM Software).

See Also: AX=5207h

Format of disk transfer packet:
Offset Size    Description (Table 2522)
 00h   DWORD   sector number
 04h   WORD    number of sectors to read(write)
 06h   DWORD   transfer address