Function 62h (98)        Get PSP Address                            ≥ DOS 3.0

    Returns the segment address of the Program Segment Prefix (PSP) for
    the current process.

       On entry:      AH         62h

       Returns:       BX         Segment of the PSP

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    Function 62h returns in BX the address of the PSP for the program that
    is currently running.