Zero Wing 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.

Zero Wing (Toaplan (Williams license), 1989)

Memory Area:toaplan1_sound_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0x87FF	2048	RAM, Shared	sharedram

Memory Area:zerowing_main_map

Address Range	Length	Function	Description
0x0000-0xFFFF	65536	ROM
0x40000-0x7FFFF	262144	ROM
0x80000-0x87FFF	32768	RAM
0xC0000-0xC0003	4	Write	toaplan1_tile_offsets_w
0xC0006-0xC0007	2	Write	toaplan1_fcu_flipscreen_w
0x400000-0x400001	2	Read Port	VBLANK
0x400002-0x400003	2	Write	toaplan1_intenable_w
0x400008-0x40000F	8	Write	toaplan1_bcu_control_w
0x404000-0x4047FF	2048	RAM Write, Shared	toaplan1_bgpalette_w, bgpalette
0x406000-0x4067FF	2048	RAM Write, Shared	toaplan1_fgpalette_w, fgpalette
0x440000-0x440FFF	4096	Read/Write	toaplan1_shared_r, toaplan1_shared_w
0x480000-0x480001	2	Write	toaplan1_bcu_flipscreen_w
0x480002-0x480003	2	Read/Write	toaplan1_tileram_offs_r, toaplan1_tileram_offs_w
0x480004-0x480007	4	Read/Write	toaplan1_tileram16_r, toaplan1_tileram16_w
0x480010-0x48001F	16	Read/Write	toaplan1_scroll_regs_r, toaplan1_scroll_regs_w
0x4C0000-0x4C0001	2	Read	toaplan1_frame_done_r
0x4C0002-0x4C0003	2	Read/Write	toaplan1_spriteram_offs_r, toaplan1_spriteram_offs_w
0x4C0004-0x4C0005	2	Read/Write	toaplan1_spriteram16_r, toaplan1_spriteram16_w
0x4C0006-0x4C0007	2	Read/Write	toaplan1_spritesizeram16_r, toaplan1_spritesizeram16_w

Memory Area:zerowing_sound_io_map

Address Range	Length	Function	Description
0x0000	1	Read Port	P1
0x0008	1	Read Port	P2
0x0020	1	Read Port	DSWA
0x0028	1	Read Port	DSWB
0x0080	1	Read Port	SYSTEM
0x0088	1	Read Port	TJUMP
0x00A0	1	Write	toaplan1_coin_w (/* Coin counter/lockout */)
0x00A8-0x00A9	2	Device Read/Write	ymsnd, ym3812_device, read, write

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:audiocpu

Address Range	Length	Label/Location	Description
0x0000-0x7FFF	32768	o15-13.rom	CRC(e7b72383) (Fluke: 93B2)

Memory Area:gfx2

Address Range	Length	Label/Location	Description
0x0000-0x001F	32	tp015_14.bpr	CRC(bc88cced),sprite attribute (flip/position) ?? (Fluke: 6597)
0x0020-0x003F	32	tp015_15.bpr	CRC(a1e17492),??? (Fluke: A37B)