[comp.sys.cbm] Looking for a Chip Failure Workaround

jdb8@homxc.UUCP (J.BOBECK) (02/15/89)

The chip connected to port 2 continues to be blown out by use
of the joystick.  At $50 a pop to replace the chip, I'm approaching
the cost of a new machine.  

Does anyone out there know of some code, perhaps assembly language,
which could be used to make the games which read from the joystick
in port 2 read from port 1 instead.  I was thinking of maybe changing
a kernel vector address so that the program still looks at the same
slot of the vector, but the address is now pointing to port 1.