Out of bounds error

[ivan-pi]

~/FC8/build$ ./FC8-Xlib ../cartridges/oob_test_2.ch8 
 ../cartridges/oob_test_2.ch8                                                                                                                                                                                                                                    
Open display done.
At line 605 of file /Users/di75yas/FC8/src/FC8_vm-Xlib.f90
Fortran runtime error: Index '4096' of dimension 1 of array 'memory' above upper bound of 4095

This as an out of bounds access in the BCD instruction:

fc8/src/fc8_vm.F90

Line 629 in 225c1a0

memory(I+1) = int(d,byte)

(I was using an older version of the interpreter.)