Compatibility: All
Expects: AH    03H
BH    video page number (0-based)
                                                                  
Returns: CH    cursor starting scan-line
CL    cursor ending scan-line
DH    current row (0-based)
DL    current column (0-based)
                                                                  
Info: This obtains the current cursor position and the size/shape of
the cursor for a specified video page.

BH specifies a video page (use 0 in most cases).  The BIOS maintains
the cursor position for each video page; they are saved starting
at 0040:0050.  The cursor size is saved only for the current
video page, so you may need to maintain it separately if you are
using a page-switching technique.

DH,DL and CH,CL return containing cursor information.

See Also: INT 10H 01H (set cursor size)
INT 10H 02H (set cursor position)
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INT 10H 03H: Query Cursor Position and Size