Well that's just a screen shot of the directory listing of the GEOS disk from the 64's default "OS", the BASIC interpreter. That 3 block file also contains information that only GEOS sees, the actual executable 6502 code is likely in the 500 bytes, if that. The user manual for the mouse actually contains an assembler listing of the driver. It ain't big.
The 64, of course, was never designed with a mouse in mind, so Commodore engineers used the analog paddle inputs to encode the mouse XY motion. So the "driver" really just reads the A/D converters for the paddles and fudges some kind of motion information out of it.
It works quite well. The 64 only has a 320x200 display, so it's not like you need a gaming 1000DPI 1ms mouse.
I think you don't have an argument. That's what I think. BTW, which religion is presently occupying territories and bombing children and shooting food aid seekers?
Good, service guarantees citizenship and the way things are going, the Greatestest and Bestest Democraciest Peaciest and Freedomest Country in the Whole Wide Universe will need some cannon fodder highly qualified personnel.
I know. But it's a religious thing, so any random dude with a mental illness, other than religion itself, can take Holy Action (tm).