Rescue 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.

Rescue (bootleg (Free Enterprise Games), 1982)

Memory Area:rescuefe_map

Address Range	Length	Function	Description
0x0000-0x05FF	1536	ROM
0x0600-0x0FFF	2560	RAM	(// sets stack here)
0x1000-0x13FF	1024	RAM Write, Shared	galaxold_videoram_w, videoram
0x1400-0x143F	64	RAM Write, Shared	galaxold_attributesram_w, attributesram
0x1440-0x145F	32	RAM, Shared	spriteram
0x1460-0x147F	32	RAM, Shared	bulletsram
0x1480-0x14FF	128	RAM
0x4400-0x5DFF	6656	ROM
0x5E00-0x6BFF	3584	ROM	(// some right?)
0x8200-0x93FF	4608	ROM	(// wrong? (maybe some correct?))
0xA600-0xA6FF	256	ROM	(// wrong (taunt string) jumps to around a600 so something must map in this area?)
0xC160-0xC163	4	Device Read	ppi8255_0, i8255_device, read (// ?)
0xC180-0xC183	4	Device Write	ppi8255_0, i8255_device, write (// correct based on main set?)
0xC190-0xC193	4	Device Read	ppi8255_0, i8255_device, read (// ?)
0xC220-0xC223	4	Device Write	ppi8255_1, i8255_device, write (// ^)
0xC4AC-0xC4AF	4	Device Read	ppi8255_1, i8255_device, read (// ?)
0xEA01	1	Write	galaxold_nmi_enable_w
0xEA86	1	Write	galaxold_flip_screen_x_w
0xEA87	1	Write	galaxold_flip_screen_y_w
0xEA93	1	Write	scrambold_background_enable_w

Memory Area:scobra_sound_io_map

Address Range	Length	Function	Description
0x0010	1	Device Write	ay1, ay8910_device, address_w
0x0020	1	Device Read/Write	ay1, ay8910_device, data_r, data_w
0x0040	1	Device Write	ay2, ay8910_device, address_w
0x0080	1	Device Read/Write	ay2, ay8910_device, data_r, data_w

Memory Area:scobra_sound_map

Address Range	Length	Function	Description
0x0000-0x2FFF	12288	ROM
0x8000-0x8FFF	4096	Read/Write	scobra_soundram_r, scobra_soundram_w
0x8000-0x83FF	1024	Write NOP, Shared	soundram (/* only here to initialize pointer */)
0x9000-0x9FFF	4096	Write	scramble_filter_w

Memory Area:type1_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0x87FF	2048	RAM
0x8800-0x8BFF	1024	RAM Write, Shared	galaxold_videoram_w, videoram
0x8C00-0x8FFF	1024	RAM Write	galaxold_videoram_w (/* mirror */)
0x8C00-0x8FFF	1024	Read	galaxold_videoram_r (/* mirror */)
0x9000-0x903F	64	RAM Write, Shared	galaxold_attributesram_w, attributesram
0x9040-0x905F	32	RAM, Shared	spriteram
0x9060-0x907F	32	RAM, Shared	bulletsram
0x9080-0x90FF	128	RAM
0x9800-0x9803	4	Device Read/Write	ppi8255_0, i8255_device, read, write
0xA000-0xA003	4	Device Read/Write	ppi8255_1, i8255_device, read, write
0xA801	1	Write	galaxold_nmi_enable_w
0xA802	1	Write	galaxold_coin_counter_w
0xA804	1	Write	galaxold_stars_enable_w
0xA806	1	Write	galaxold_flip_screen_x_w
0xA807	1	Write	galaxold_flip_screen_y_w
0xB000	1	Device Read	watchdog, watchdog_timer_device, reset_r

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
0x0000-0x07FF	2048	gfx.5f	CRC(60f49e88)
0x0800-0x0FFF	2048	gfx.5h	CRC(9486e09e)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x05FF	1536	sub-1.bin	CRC(7a6e813e)
0x0000-0x07FF	2048	rb15csnd.2l	CRC(8b24bf17) (Fluke: D9FD)
0x0800-0x0FFF	2048	rb15dsnd.2m	CRC(d96e4fb3) (Fluke: D965)
0x5E00-0x6BFF	3584	sub-2.bin	CRC(28fcec83)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x001F	32	82s123.6e	CRC(40c6bcbd) (Fluke: 9B06)