Arkanoid 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.

Arkanoid (bootleg, 1986)

Memory Area:arkanoid_map

Address Range	Length	Function	Description
0x0000-0xBFFF	49152	ROM
0xC000-0xC7FF	2048	RAM
0xD000-0xD001	2	Device Write	aysnd, ay8910_device, address_data_w
0xD001	1	Device Read	aysnd, ay8910_device, data_r
0xD008	1	Write	arkanoid_d008_w (/* gfx bank, flip screen, 68705 reset, etc. */)
0xD00C	1	Read Port	SYSTEM (/* 2 bits from the 68705 */)
0xD010	1	Read Port, Device Write	BUTTONS, watchdog, watchdog_timer_device, reset_w
0xD018	1	Read/Write	arkanoid_Z80_mcu_r, arkanoid_Z80_mcu_w (/* input from the 68705 */)
0xE000-0xE7FF	2048	RAM Write, Shared	arkanoid_videoram_w, videoram
0xE800-0xE83F	64	RAM, Shared	spriteram
0xE840-0xEFFF	1984	RAM
0xF000-0xFFFF	4096	Read NOP	(/* fixes instant death in final level */)

Memory Area:mcu_map

Address Range	Length	Function	Description
0x0000	1	Read/Write	arkanoid_68705_port_a_r, arkanoid_68705_port_a_w
0x0001	1	Read Port	MUX
0x0002	1	Read/Write	arkanoid_68705_port_c_r, arkanoid_68705_port_c_w
0x0004	1	Write	arkanoid_68705_ddr_a_w
0x0006	1	Write	arkanoid_68705_ddr_c_w
0x0008	1	Read/Write	arkanoid_68705_tdr_r, arkanoid_68705_tdr_w
0x0009	1	Read/Write	arkanoid_68705_tcr_r, arkanoid_68705_tcr_w
0x0010-0x007F	112	RAM
0x0080-0x07FF	1920	ROM

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:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	a75-03.rom	CRC(038b74ba) (Fluke: 9FA3)
0x0000-0x7FFF	32768	a75-03.rom	CRC(038b74ba) (Fluke: 9FA3)
0x8000-0xFFFF	32768	a75-04.rom	CRC(71fae199) (Fluke: FE26)
0x8000-0xFFFF	32768	a75-04.rom	CRC(71fae199) (Fluke: FE26)
0x10000-0x17FFF	32768	a75-05.rom	CRC(c76374e2) (Fluke: 226C)
0x10000-0x17FFF	32768	a75-05.rom	CRC(c76374e2) (Fluke: 226C)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	e1.6d	CRC(dd4f2b72),Hacked up Notice warning text (Fluke: 564D)
0x8000-0xFFFF	32768	e2.6f	CRC(bbc33ceb),== A75-02.IC16 (Fluke: 861E)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x01FF	512	a75-07.bpr	CRC(0af8b289),red component (Fluke: DC9B)
0x0000-0x01FF	512	a75-07.bpr	CRC(0af8b289),red component (Fluke: DC9B)
0x0200-0x03FF	512	a75-08.bpr	CRC(abb002fb),green component (Fluke: A976)
0x0200-0x03FF	512	a75-08.bpr	CRC(abb002fb),green component (Fluke: A976)
0x0400-0x05FF	512	a75-09.bpr	CRC(a7c6c277),blue component (Fluke: B574)
0x0400-0x05FF	512	a75-09.bpr	CRC(a7c6c277),blue component (Fluke: B574)