There's a problem of logic here. The Amiga's mouse actually had little logic in there, the Amiga itself decoded the signals into position-placement. PC mice send byte-signals down a serial line, and the CPU has to then first arrange them back into usable signals *then* decode the result. Means that a PC's mouse doesn't work like an Amiga's mouse. You need to make a logic chip to do the work that the CPU used to do in the PC and then translate that to the Amiga.
