Changes

FBEE I/O port for X position is decoded as xxxx x0x1 1011 xxx0 xxx0(FBEE is normally used)FBEF I/O port for Y position is decoded as xxxx x0x1 1011 xxx0 xxx1(FBEF is normally used)FAEF I/O port for Buttons is decoded as xxxx x0x0 1010 xxx0 xxxx(FAEF is normally used)

In Spectrum interface A8 chooses buttons or directions. On CPC interface A8 alsochooses this.For CPC A4 must be 0, A11 must be 1 and A9 must be 1.