[SeaBIOS] [PATCH 0/7] vgabios improvements

[Kevin O'Connor]

On Wed, Apr 16, 2014 at 06:56:57PM +0200, Gerd Hoffmann wrote:
> And we don't have a cursor I've noticed meanwhile.  That would be very
> helpful for editing your linux cmd line in the boot loader.  A blinking
> cursor is probably a bit unrealistic (need timer interrupt etc), but
> emulating a block cursor should be possible I think.

I was thinking something similar - just xor the character cell
underneath the cursor.  The only tricky part is to make sure to undo
the cursor manipulation during any scrolls or screen writes.

I was also thinking about hooking the timer interrupt to support
blinking, but like you, I concluded it wasn't worth the effort.

-Kevin