Added a few more increment classes. Added more to the Memory interface.
Implemented memory setters in Memory.java
having issues pushing. this is a test.
Two abstract 16 and 8 bit Decrement opcode classes.
All 16 and 8 bit decrement opcodes.
Tests for 16 and 8 bit decrement opcodes. These are general tests for
now, ensuring basic functionality.
I think things are working again.
Completed memory class accessors. Added tests.
Refactored the decrement abstract classes. Added Dec (HL) class. Memory
is not implemented yet so this is not testable yet. Added a test to
decrement tests that needs to be implemented later.
Last of the increment opcodes implemented
Added a few opcode constants
Merge branch 'kevins_branch' into johns_branch
Pulled GameBoyRegisters fix from johns_branch