Cosmo Gang the Puzzle 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.

Cosmo Gang the Puzzle (Namco, 1992)

Memory Area:namcona1_main_map

Address Range	Length	Function	Description
0x0000-0x7FFFF	524288	RAM, Shared	workram
0x3F8000-0x3FFFFF	32768	Read/Write	mcu_mailbox_r, mcu_mailbox_w_68k
0x400000-0xBFFFFF	8388608	ROM, Region	maskrom, 0 (// data)
0xC00000-0xDFFFFF	2097152	ROM, Region	maincpu, 0 (// code)
0xE00000-0xE00FFF	4096	Device Read/Write 8-bit	eeprom, eeprom_parallel_28xx_device, read, write, 0x00ff
0xE40000-0xE4000F	16	Read/Write	custom_key_r, custom_key_w
0xEFFF00-0xEFFFFF	256	RAM Write, Shared	vreg_w, vreg
0xF00000-0xF01FFF	8192	RAM Write, Shared	paletteram_w, paletteram
0xF40000-0xF7FFFF	262144	Read/Write, Shared	gfxram_r, gfxram_w, cgram
0xFF0000-0xFFBFFF	49152	RAM Write, Shared	videoram_w, videoram
0xFFD000-0xFFDFFF	4096	RAM	(/* unknown */)
0xFFE000-0xFFEFFF	4096	RAM, Shared	scroll (/* scroll registers */)
0xFFF000-0xFFFFFF	4096	RAM, Shared	spriteram (/* spriteram */)

Memory Area:namcona1_mcu_io_map

Address Range	Length	Function	Description
0x0000	1	Read/Write	port7_r, port7_w
0x0000	1	Read/Write	port4_r, port4_w
0x0000	1	Read/Write	port8_r, port8_w
0x0000	1	Read/Write	port6_r, port6_w
0x0000	1	Read/Write	port5_r, port5_w
0x0010-0x001F	16	Read	portana_r

Memory Area:namcona1_mcu_map

Address Range	Length	Function	Description
0x0800-0x0FFF	2048	Read/Write	mcu_mailbox_r, mcu_mailbox_w_mcu (// "Mailslot" communications ports)
0x1000-0x1FFF	4096	Read/Write	snd_r, snd_w (// C140-alike sound chip)
0x2000-0x2FFF	4096	Read/Write	na1mcu_shared_r, na1mcu_shared_w (// mirror of first page of shared work RAM)
0x3000-0xAFFF	32768	RAM	(// there is a 32k RAM chip according to CGFM)
0x200000-0x27FFFF	524288	Read/Write	na1mcu_shared_r, na1mcu_shared_w (// shared work RAM)

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:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x07FF	2048	eeprom_cgangpzl	CRC(5f8dfe9e)