General:
    ✔ Add unit tests for each instruction and address mode @done(23-11-07 19:57)
    ☐ Fully implement clock cycle tracking
    ☐ Add a disassembler for debugging
        ☐ Debug data lookup for instructions

CPU:
    Signals:
        ✔ Clock @done(23-11-07 20:45)
        ✔ Reset @done(23-11-07 20:46)
        ☐ irq function
        ☐ nmi function

Addressing modes:
    ✔ IMP - Implied @done(23-11-07 14:01)
    ✔ IMM - Immediate @done(23-11-06 19:01)
    ✔ ZP0 - Zero Page @done(23-11-07 14:40)
    ✔ ZPX - Zero Page, X @done(23-11-07 14:40)
    ✔ ZPY - Zero Page, Y @done(23-11-07 14:40)
    ☐ REL - Relative
        ✔ Code @done(23-11-07 20:44)
        ☐ Test
    ✔ ABS - Absolute @done(23-11-07 20:25)
    ✔ ABX - Absolute, X @done(23-11-07 20:25)
    ✔ ABY - Absolute, Y @done(23-11-07 20:25)
    ☐ IND - Indirect
    ☐ IZX - Indirect, X
    ☐ IZY - Indirect, Y

Instructions:
    GROUP ONE:
        ✔ 000	ORA @done(23-11-06 18:55)
        ✔ 001	AND @done(23-11-07 13:43)
        ✔ 010	EOR @done(23-11-07 13:43)
        ✔ 011	ADC @done(23-11-06 19:59)
        ✔ 100	STA @done(23-11-07 15:04)
        ✔ 101	LDA @done(23-11-06 18:55)
        ✔ 110	CMP @done(23-11-09 13:24)
        ✔ 111	SBC @done(23-11-09 13:24)

    GROUP TWO:
        ✔ 000	ASL @done(23-11-30 17:31)
        ✔ 001	ROL @done(23-11-30 17:49)
        ✔ 010	LSR @done(23-11-30 18:12)
        ✔ 011	ROR @done(23-11-30 18:12)
        ☐ 100	STX
        ☐ 101	LDX
        ☐ 110	DEC
        ☐ 111	INC

    GROUP THREE:
        ☐ 001	BIT
        ☐ 010	JMP
        ☐ 011	JMP (abs)
        ☐ 100	STY
        ☐ 101	LDY
        ☐ 110	CPY
        ☐ 111	CPX

    CONDITIONALS:
        ☐ 10   BPL	
        ☐ 30   BMI	
        ☐ 50   BVC	
        ☐ 70   BVS	
        ☐ 90   BCC	
        ☐ B0   BCS 	
        ☐ D0   BNE	
        ☐ F0   BEQ

    INTERRUPT/SUBROUTINE:
        ☐ 00   BRK
        ☐ 20   JSR abs
        ☐ 40   RTI
        ☐ 60   RTS

    SINGLE-BYTE:
        ☐ 08  PHP
        ☐ 28  PLP
        ☐ 48  PHA 	
        ☐ 68  PLA 	
        ☐ 88  DEY 	
        ☐ A8  TAY 	
        ☐ C8  INY 	
        ☐ E8  INX    		 	 	 	 	 	

        ☐ 18  CLC 	
        ☐ 38  SEC 	
        ☐ 58  CLI 	
        ☐ 78  SEI 	
        ☐ 98  TYA 	
        ☐ B8  CLV 	
        ☐ D8  CLD 	
        ☐ F8  SED

        ☐ 8A  TXA 	
        ☐ 9A  TXS 	
        ☐ AA  TAX 	
        ☐ BA  TSX 	
        ☐ CA  DEX 	
        ☐ EA  NOP