rough_plan

DMGEMU

--
    cpu
        data
            internal registers
            hardware registers
        code
            control clock cycles
            fetch code
                [MEMORY]
                [ASM]
            update hardware registers
                timer registers
                refresh time
                    [LCD]
--
    memory
        data
            memory area
            addresses values
        code
            obtain path to file (or actual FILE *f)
            read byte
            read array
                [read byte]
            write byte
                check location
                    is read-only?
                    corresponds to hardware register?
                [MBC] call effects (or bind them preventively)
            write array
                [write byte]
--
    asm
        data
            array of opcodes
                opcode
                mask
                function pointer
        code
            opcode functions
--
    lcd
        data
            byte stream
                bind it to the corresponding memory area
            video hardware registers
        code
            produce graphics
                compose graphics from data area and arrangement area
    oam
        data
            [LCD]
        code
            [MEMORY]