Donkey Kong 3 Memory Map

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Memory Map

The following is a memory map that was generated based on the MAME source code (.180). This information is only as accurate as the MAME driver is. If you see any errors, please let me know what that error is.

The Memory Area is related to where the information is from (CPU, Sound Board, etc..), and it may also reflect what it has in common with other hardware.

Donkey Kong 3 (Nintendo, 1983)

Memory Area:dkong3_io_map

Address Range	Length	Function	Description
0x0000	1	Device Read/Write	z80dma, z80dma_device, read, write (/* dma controller */)

Memory Area:dkong3_map

Address Range	Length	Function	Description
0x0000-0x5FFF	24576	ROM
0x6000-0x67FF	2048	RAM
0x6800-0x6FFF	2048	RAM
0x7000-0x73FF	1024	RAM, Shared	sprite_ram (/* sprite set 1 */)
0x7400-0x77FF	1024	RAM Write, Shared	dkong_videoram_w, video_ram
0x7C00	1	Read Port, Write Latch 8-bit	IN0, latch1
0x7C80	1	Read Port, Write Latch 8-bit	IN1, latch2
0x7D00	1	Read Port, Write Latch 8-bit	DSW0, latch3
0x7D80	1	Read Port, Write	DSW1, dkong3_2a03_reset_w
0x7E80	1	Write	dkong3_coin_counter_w
0x7E81	1	Write	dkong3_gfxbank_w
0x7E82	1	Write	dkong_flipscreen_w
0x7E83	1	Write	dkong_spritebank_w (/* 2 PSL Signal */)
0x7E84	1	Write	nmi_mask_w
0x7E85	1	Write	dkong_z80dma_rdy_w (/* ==> DMA Chip */)
0x7E86-0x7E87	2	Write	dkong_palettebank_w
0x8000-0x9FFF	8192	ROM	(/* DK3 and bootleg DKjr only */)

ROM Map for this game

This is the ROM map for the game. This should tell you what address the ROM is at, how big it is, what it's used for.

Memory Area:adrdecode

Address Range	Length	Label/Location	Description
0x0000-0x001F	32	dkc1-v.5e	CRC(d3e2eaf8) (Fluke: 3932)

Memory Area:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	dk3v.3n	CRC(415a99c7) (Fluke: C6FC)
0x1000-0x1FFF	4096	dk3v.3p	CRC(25744ea0) (Fluke: 6A8A)

Memory Area:gfx2

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	dk3v.7c	CRC(8ffa1737) (Fluke: 988D)
0x1000-0x1FFF	4096	dk3v.7d	CRC(9ac84686) (Fluke: 6CAA)
0x2000-0x2FFF	4096	dk3v.7e	CRC(0c0af3fb) (Fluke: 49DE)
0x3000-0x3FFF	4096	dk3v.7f	CRC(55c58662) (Fluke: C4E7)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	dk3c.7b	CRC(38d5f38e) (Fluke: 93B4)
0x2000-0x3FFF	8192	dk3c.7c	CRC(c9134379) (Fluke: 78B5)
0x4000-0x5FFF	8192	dk3c.7d	CRC(d22e2921) (Fluke: 08E4)
0x8000-0x9FFF	8192	dk3cj.7e	CRC(25b5be23) (Fluke: 1127)

Memory Area:n2a03a

Address Range	Length	Label/Location	Description
0xE000-0xFFFF	8192	dk3c.5l	CRC(7ff88885) (Fluke: D216)

Memory Area:n2a03b

Address Range	Length	Label/Location	Description
0xE000-0xFFFF	8192	dk3c.6h	CRC(36d7200c) (Fluke: 4FA6)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x01FF	512	dkc1-c.1d	CRC(df54befc),palette red & green component (Fluke: F7D7)
0x0200-0x03FF	512	dkc1-c.1c	CRC(66a77f40),palette blue component (Fluke: 7268)
0x0400-0x04FF	256	dkc1-v.2n	CRC(50e33434),character color codes on a per-column basis (Fluke: F652)