Int 2F/AX=1980h

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IBM ROM-DOS v4.0 - INSTALLATION CHECK

AX = 1980h

Return:
AL = FFh if ??? installed/supported

Note: Called at the very beginning of SHELLSTB.COM, which exits if AL is not FFh on return

See Also: AX=1981h - AX=1982h

Category: Uncatagorized - Int 2Fh - I

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