Int 2F/AX=D200h/BX=5144h

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Quarterdeck RPCI - INSTALLATION CHECK

AX = D200h
BX = 5144h ("QD")
CX = 4D45h ("ME")
DX = 4D30h ("M0")

Return:
AL = FFh installed if BX,CX,DX registers were as specified on entry: BX = 4D45h ("ME") CX = 4D44h ("MD") DX = 5652h ("VR")

Range:
AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h

Notes: The Quarterdeck RPCI (Resident Program Communication Interface) is supported by QEMM v5.0+, QRAM, MANIFEST, VIDRAM, etc.. For AL <> 0, if the BX/CX/DX values don't match the identifier of a Quarterdeck product, it just chains to the previous INT 2F handler

See Also: AX=D201h/BX=4849h - AX=D201h/BX=4D41h - AX=D201h/BX=4D45h

See Also: AX=D201h/BX=5145h - AX=D201h/BX=5649h

Category: DESQview/TopView and Quarterdeck Programs - Int 2Fh - Q

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