====== Hardware Cursor ======

The cursor is 64×64, stored in local memory at [[registers:host-registers:native_cursorbase|CursorBase]], aligned to 1024 bytes. Each scan line has two 64-bit planes, interleaved in memory. Bit 63 is the left-most pixel.

^ Cursor line ^ Plane 0 offset ^ Plane 1 offset ^
| Bottom | 0 | 8 |
| Next line upward | 16 | 24 |
| Top | 1008 | 1016 |

Command2 selects disabled, three-color, two-color highlight or two-color X Windows cursor mode. Cursor palette index/data registers supply colors.

CXLR/CXHR and CYLR/CYHR form twelve-bit X and Y positions. Write the low and high components, finishing with CYHR at I/O +0xBF to commit the group. Once a frame begins, it uses the cursor position from that frame's start.

Position (0,0) puts the cursor off-screen. Position (1,1) places the cursor's bottom-right pixel at the display's top-left pixel. Disable the hardware cursor when switching to VGA as specified in the context procedure.

[[registers:host-registers:native_command2|Command2]] · [[registers:host-registers:native_cxlr|CXLR]] · [[registers:host-registers:native_cxhr|CXHR]] · [[registers:host-registers:native_cylr|CYLR]] · [[registers:host-registers:native_cyhr|CYHR]]

Sources: [[https://verite.3d32.org/_media/source/v2200spec.pdf#page=52|Technical Spec, p.52]], [[https://verite.3d32.org/_media/source/v2200spec.pdf#page=56|Technical Spec, p.56]]