Cross Shooter 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.

Cross Shooter (Seibu Kaihatsu (J.K.H. license), 1987)

Memory Area:airraid_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0xBFFF	16384	ROM Bank, Write NOP	bank1, (// rld result write-back)
0xC000	1	Read Port	IN0
0xC001	1	Read Port	IN1
0xC002	1	Read Port	IN2
0xC003	1	Read Port	DSW2
0xC004	1	Read Port	DSW1
0xC500	1	Write	cshooter_c500_w
0xC700	1	Write	cshooter_c700_w
0xD000-0xD7FF	2048	RAM Device Write, Shared	airraid_vid, airraid_video_device, txram_w, txram
0xD800-0xD8FF	256	RAM Device Write, Shared	palette, palette_device, write, palette
0xDA00-0xDAFF	256	RAM Device Write, Shared	palette, palette_device, write_ext, palette_ext
0xDC00-0xDC0F	16	RAM Device Write, Shared	airraid_vid, airraid_video_device, vregs_w, vregs
0xDC11	1	Write	bank_w
0xDE00-0xDE0F	16	Read/Write	seibu_sound_comms_r,seibu_sound_comms_w
0xE000-0xFDFF	7680	RAM, Shared	mainram
0xFE00-0xFFFF	512	RAM, Shared	sprite_ram

Memory Area:airraid_sound_map

Address Range	Length	Function	Description
0x0000-0x1FFF	8192	Device Read	sei80bu, sei80bu_device, data_r
0x2000-0x27FF	2048	RAM
0x4000	1	Device Write	seibu_sound, seibu_sound_device, pending_w
0x4001	1	Device Write	seibu_sound, seibu_sound_device, irq_clear_w
0x4002	1	Device Write	seibu_sound, seibu_sound_device, rst10_ack_w
0x4003	1	Device Write	seibu_sound, seibu_sound_device, rst18_ack_w
0x4007	1	Device Write	seibu_sound, seibu_sound_device, bank_w
0x4008-0x4009	2	Device Read/Write	seibu_sound, seibu_sound_device, ym_r, ym_w
0x4010-0x4011	2	Device Read	seibu_sound, seibu_sound_device, soundlatch_r
0x4012	1	Device Read	seibu_sound, seibu_sound_device, main_data_pending_r
0x4013	1	Read Port	COIN
0x4018-0x4019	2	Device Write	seibu_sound, seibu_sound_device, main_data_w
0x401B	1	Device Write	seibu_sound, seibu_sound_device, coin_w
0x8000-0xFFFF	32768	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:airraid_vid:bg_clut

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	bg_clut

Memory Area:airraid_vid:fg_clut

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	fg_clut

Memory Area:airraid_vid:spr_clut

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	spr_clut

Memory Area:airraid_vid:tx_gfx

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	3.f11	CRC(67b50a47) (Fluke: 6392)
0x0000-0x00FF	256	63s281.d16	CRC(0b8b914b)

Memory Area:audiocpu

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	5.6f	CRC(30be398c) (Fluke: 9EC3)
0x8000-0xFFFF	32768	4.7f	CRC(3cd715b4) (Fluke: 6560)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	1.k19	CRC(71418952) (Fluke: A6FC)

Memory Area:maindata

Address Range	Length	Label/Location	Description
0x0000-0xFFFF	65536	2.k20	CRC(5812fe72) (Fluke: 8D84)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	6308.a13
0x0000-0x01FF	512	pr.c19