MB86290A Datasheet, PDF (51/184 Pages) Fujitsu Component Limited. – Graphics Controller Hardware Specifications

5.4 Cursor
5.4.1 Cursor Display Function
MB86290A can display two hardware cursors simultaneously. Each cursor
is specified as 64 x 64 pixels, and the style pattern is set in the Graphics
Memory. Only the indirect color mode (8 bits/pixel) can be used and the C-
layer pallet is used for the color look-up. However, transparent color
management (transparent color code setting and management of code 0) is
different from ordinary C-layer pixels³alpha blending cannot be used for the
cursor color and the alpha bit in the color data registered to the color palette
is ignored.
5.4.2 Cursor Management
The display priority for hardware cursors is programmable. The cursor can
be displayed either on top or underneath the C layer using this feature. A
separate setting can be made for each hardware cursor. If part of a hardware
cursor crosses the display frame border, the part outside the border is not
shown.
However, with cursor 1 displayed over the C-layer and cursor 0 displayed
under the C-layer, the cursor 1 display has priority over the cursor 0 display.
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