Mahjong Dunhuang 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.

Mahjong Dunhuang (Spirit, 1995)

Memory Area:dunhuang_io_map

Address Range	Length	Function	Description
0x0000	1	Write	dunhuang_pos_x_w
0x0001	1	Write	dunhuang_pos_y_w
0x0002-0x0004	3	Write	dunhuang_tile_w
0x0005-0x0007	3	Write	dunhuang_tile2_w
0x0008	1	Write	dunhuang_vert_clear_w
0x000C	1	Device Read	watchdog, watchdog_timer_device, reset_r
0x000F	1	Write	dunhuang_block_addr_lo_w
0x0010	1	Write	dunhuang_block_addr_hi_w
0x0012	1	Write	dunhuang_block_c_w
0x0015	1	Write	dunhuang_block_x_w
0x0016	1	Write	dunhuang_block_y_w
0x0017	1	Write	dunhuang_block_w_w
0x0018	1	Write	dunhuang_block_h_w
0x0019	1	Write	dunhuang_clear_y_w
0x001A	1	Write	dunhuang_horiz_clear_w
0x001B	1	Write	dunhuang_block_dest_w
0x0081	1	Device Write	ymsnd, ym2413_device, register_port_w
0x0083	1	Write	dunhuang_paloffs_w
0x0084	1	Read	dunhuang_service_r
0x0085	1	Read	dunhuang_input_r
0x0086	1	Write	dunhuang_rombank_w
0x0087	1	Write	dunhuang_layers_w
0x0088	1	Device Read	ay8910, ay8910_device, data_r
0x0089	1	Device Write	ymsnd, ym2413_device, data_port_w
0x008B	1	Write	dunhuang_paldata_w
0x0090	1	Device Write	ay8910, ay8910_device, data_w
0x0098	1	Device Write	ay8910, ay8910_device, address_w

Memory Area:dunhuang_map

Address Range	Length	Function	Description
0x0000-0x5FFF	24576	ROM
0x6000-0x7FFF	8192	RAM
0x8000-0xFFFF	32768	ROM Bank	bank1

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
0x0000-0x7FFFF	524288	rom3.u4	CRC(1ff5d35e) (Fluke: 88E0)
0x80000-0xBFFFF	262144	rom2.u5	CRC(384fa1d3) (Fluke: 736C)

Memory Area:gfx2

Address Range	Length	Label/Location	Description
0x0000-0x3FFFF	262144	rom4.u3	CRC(7db45227) (Fluke: 4D6A)
0x40000-0xBFFFF	524288	rom5.u2	CRC(d609880e) (Fluke: 4B9D)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x3FFFF	262144	rom1.u9	CRC(843a0117) (Fluke: 0EA2)

Memory Area:oki

Address Range	Length	Label/Location	Description
0x0000-0x1FFFF	131072	rom6.u1	CRC(31cfdc29) (Fluke: 6C88)