Editing 4BoD (section)

==Instruction Set==
Instructions set (from documentation file by puarsliburf):

    OP  |A   |B   |Description
    0000           - NOP
    0001 AAAA      - Sets the accumulator to the value stored at memory position AAAA
    0010 AAAA      - Sets memory position AAAA to the value stored in the accumulator
    0011 AAAA      - Sets the accumulator to AAAA
    0100           - Sets the accumulator to the buttons that have been pressed
    	             - Ones place = left button
    	             - Twos place = right button
    	             - Fours place = up button
    	             - Eights place = down button
    0101           - Increments the accumulator (Do this 15 times to make a subtraction by overflow)
    0110           - Clears the screen
    0111           - Shifts the accumulator left
    1000           - Shifts the accumulator right
    1001 AAAA BBBB - Sets the accumulator to pixel position memory AAAA, memory BBBB
    1010 AAAA BBBB - Flips pixel position memory AAAA, memory BBBB
    1011 AAAA      - Sets a flag called AAAA (Flag 15 is forever 0, bug)
    1100 AAAA      - Jumps to flag memory position AAAA
    1101 AAAA      - Only perform next action if memory position AAAA is equal to the accumulator
    1110 AAAA      - Only perform next action if memory position AAAA is greater than the accumulator
    1111 AAAA      - Only perform next action if memory position AAAA is less than the accumulator