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Sharp X68000 Mouse Adapter
An original Sharp X68000 mouse is rare to find and usually very expensive. Unfortunately my Japan-picked X68000 also came without a mouse. But luckily there is a nice little PS/2-X68k mouse adapter project out there, that I copied on a prototyping PCB and fitted with a custom 3D printed case. It works fine and is specifically helpful to explore the graphical SX Windows user interface or for certain games. One thing that is noticeable though is a very odd acceleration behaviour of the mouse-pointer. I'm still unsure if this can be tuned somehow in the Assembly code of the PIC.
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