Int 2F Fn D201  - Quarterdeck Rpci - Qemm/qram V5.0+ - Get Hiram Memory C  [m]

   AX = D201h
   BX = 4849h ("HI")
   CX = 5241h ("RA")
   DX = 4D30h ("M0")

Return: BX = 4F4Bh ("OK")
   CX = segment of start of HIRAM chain
   DX = reserved block owner (QEMM/QRAM code segment)
Range: AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h

Note:  the HIRAM memory chain has the same format as the regular DOS 4.0
     memory chain (see #1314 at INT 21/AH=52h), except that XMS Upper
     Memory Blocks have the block header program name field set to
     "UMB"; blocks whose "owner" field is set to the reserved segment
     returned in DX are locked-out regions such as video memory and ROMs.

See Also: AX=12FFh/BX=0006h,AX=D200h