Donkey Kong (NES)/ROM map

The following article is a ROM map for Donkey Kong (NES).

PRG ROM is mapped from C000 to FFFF. All the addresses below correspond to this. In order to find the data in a .nes file simply subtract BFEF from the values below. A simple method is to change the first digit to 0, 1, 2 or 3 depending if it is C, D, E or F respectively. Then increase the result by 10 to compensate for the 8 byte header. I.E. C000 = 0010, D2F8 = 1308, etc.

DATA

Interrupt Vectors

• FFFA to FFFB = NMI Vector: C85F
• FFFC to FFFD = Reset Vector: C79E
• FFFE to FFFF = IRQ Vector: FFF0

Game Variables

• C014 to C027 = First element in the Array of demo Mario moves. Determines his direction
• C028 to C03B = Second element of above array. Determines how many times to repeat direction in first element
• C600 to C603 = Values of Bonus given
• D636 = Amount of time hammer has (4B)

Graphics

Backgrounds (Name Table Data)

• F8F5 to FA1A = Title Screen
• F58C to F71B = Zone 1
• F809 to F8D8 = Zone 2
• F743 to F7CC = Zone 3
• FA1B to FA1E = I-
• FA1F to FA24 = TOP
• FA25 to FA29 = II-
• FA2A to FA36 = (M)(BONUS)(L)
• FA37 to FA44 = ( )( )( )

Text

• C6AA to C6C1 = PLAYER I in middle of screen (two player mode)
• C6C2 to C6E0 = GAMER OVER in middle of screen with a blank line above and below

CODE

• EBBB to EBC3 = Changes 0096 (Mario's status) to FF (Dead) if no time is left
• EC16 to EC28 = Loads data for demo movement of Mario from ROM to RAM