Int 2F/AX=D201h/BX=4849h

Quarterdeck RPCI - GET QD HIMEM PRESENCE

AX = D201h
BX = 4849h ("HI")
CX = 4D45h ("ME")
DX = 4D51h ("MQ")

Return:
BX = 4F4Bh ("OK")
ES:DI -> HIMEM entry point
Range:
AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h

See Also: AX=D200h - AX=D201h/BX=5145h

Category: Memory Management - Int 2Fh - Q

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