Ma Cheon Ru 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.

Ma Cheon Ru (SemiCom / AceVer, 1999)

Memory Area:hyperpac_map

Address Range

Length

Function

Description

0x0000-0xFFFFF

1048576

ROM

0x100000-0x10FFFF

65536

RAM, Shared

hyperpac_ram

0x300000-0x300001

Write

semicom_soundcmd_w

0x500000-0x500001

Read Port

DSW1

0x0001	Demo_Sounds	Active High
0x0001	Off	Active High
0x0000	On	Active High
0x000e	Coinage	Active High
0x0000	3C_1C	Active High
0x0002	3C_1C	Active High
0x0004	3C_1C	Active High
0x0006	2C_1C	Active High
0x000e	1C_1C	Active High
0x000a	2C_3C	Active High
0x000c	1C_2C	Active High
0x0008	1C_3C	Active High
0x0070	Difficulty	Active High
0x0020	Level 1	Active High
0x0010	Level 2	Active High
0x0000	Level 3	Active High
0x0070	Level 4	Active High
0x0060	Level 5	Active High
0x0050	Level 6	Active High
0x0040	Level 7	Active High
0x0030	Level 8	Active High
0x0100	Joystick Up	Active High
0x0200	Joystick Down	Active High
0x0400	Joystick Left	Active High
0x0800	Joystick Right	Active High
0x1000	Button 1	Active High
0x2000	Button 2	Active High
0x4000	Button 3	Active High
0x8000	Unknown	Active High

0x500002-0x500003

Read Port

DSW2

0x0001	Unknown	Active High
0x0001	Off	Active High
0x0000	On	Active High
0x0002	Picture	Active High
0x0000	Traditional	Active High
0x0004	Every 3 Rounds	Active High
0x0000	Every Round	Active High
0x0008	Unknown	Active High
0x0008	Off	Active High
0x0000	On	Active High
0x0010	Unknown	Active High
0x0010	Off	Active High
0x0000	On	Active High
0x0020	Unknown	Active High
0x0020	Off	Active High
0x0000	On	Active High
0x0040	Unknown	Active High
0x0040	Off	Active High
0x0000	On	Active High
0x0080	Free_Play	Active High
0x0080	Off	Active High
0x0000	On	Active High
0x0100	Joystick Up	Active High
0x0200	Joystick Down	Active High
0x0400	Joystick Left	Active High
0x0800	Joystick Right	Active High
0x1000	Button 1	Active High
0x2000	Button 2	Active High
0x4000	Button 3	Active High
0x8000	Unknown	Active High

0x500004-0x500005

Read Port

SYSTEM

0x00ff	Unknown	Active High
0x0100	Start 1	Active High
0x0200	Start 2	Active High
0x0400	Coin 1	Active High
0x0800	Coin 2	Active High
0x1000	Unknown	Active High
0x2000	Unknown	Active High
0x4000	Unknown	Active High
0x8000	Unknown	Active High

0x600000-0x6001FF

512

RAM Device Write, Shared

palette, palette_device, write, palette

0x700000-0x701FFF

8192

Device Read/Write

pandora, kaneko_pandora_device, spriteram_LSB_r, spriteram_LSB_w

0x800000-0x800001

Write

snowbros_irq4_ack_w (/* IRQ 4 acknowledge */)

0x900000-0x900001

Write

snowbros_irq3_ack_w (/* IRQ 3 acknowledge */)

0xA00000-0xA00001

Write

snowbros_irq2_ack_w (/* IRQ 2 acknowledge */)

Memory Area:hyperpac_sound_map

Address Range	Length	Function	Description
0x0000-0xCFFF	53248	ROM
0xD000-0xD7FF	2048	RAM
0xF000-0xF001	2	Device Read/Write	ymsnd, ym2151_device,read,write
0xF002	1	Device Read/Write	oki, okim6295_device, read, write
0xF008	1	Device Read	soundlatch, generic_latch_8_device, read

Memory Area:snowbros_map

Address Range

Length

Function

Description

0x0000-0x3FFFF

262144

ROM

0x100000-0x103FFF

16384

RAM

0x200000-0x200001

Device Write

watchdog, watchdog_timer_device, reset16_w

0x300000-0x300001

Read/Write

snowbros_68000_sound_r,snowbros_68000_sound_w

0x400000-0x400001

Write

snowbros_flipscreen_w

0x500000-0x500001

Read Port

DSW1

0x0001	Demo_Sounds	Active High
0x0001	Off	Active High
0x0000	On	Active High
0x000e	Coinage	Active High
0x0000	3C_1C	Active High
0x0002	3C_1C	Active High
0x0004	3C_1C	Active High
0x0006	2C_1C	Active High
0x000e	1C_1C	Active High
0x000a	2C_3C	Active High
0x000c	1C_2C	Active High
0x0008	1C_3C	Active High
0x0070	Difficulty	Active High
0x0020	Level 1	Active High
0x0010	Level 2	Active High
0x0000	Level 3	Active High
0x0070	Level 4	Active High
0x0060	Level 5	Active High
0x0050	Level 6	Active High
0x0040	Level 7	Active High
0x0030	Level 8	Active High
0x0100	Joystick Up	Active High
0x0200	Joystick Down	Active High
0x0400	Joystick Left	Active High
0x0800	Joystick Right	Active High
0x1000	Button 1	Active High
0x2000	Button 2	Active High
0x4000	Button 3	Active High
0x8000	Unknown	Active High

0x500002-0x500003

Read Port

DSW2

0x0001	Unknown	Active High
0x0001	Off	Active High
0x0000	On	Active High
0x0002	Picture	Active High
0x0000	Traditional	Active High
0x0004	Every 3 Rounds	Active High
0x0000	Every Round	Active High
0x0008	Unknown	Active High
0x0008	Off	Active High
0x0000	On	Active High
0x0010	Unknown	Active High
0x0010	Off	Active High
0x0000	On	Active High
0x0020	Unknown	Active High
0x0020	Off	Active High
0x0000	On	Active High
0x0040	Unknown	Active High
0x0040	Off	Active High
0x0000	On	Active High
0x0080	Free_Play	Active High
0x0080	Off	Active High
0x0000	On	Active High
0x0100	Joystick Up	Active High
0x0200	Joystick Down	Active High
0x0400	Joystick Left	Active High
0x0800	Joystick Right	Active High
0x1000	Button 1	Active High
0x2000	Button 2	Active High
0x4000	Button 3	Active High
0x8000	Unknown	Active High

0x500004-0x500005

Read Port

SYSTEM

0x00ff	Unknown	Active High
0x0100	Start 1	Active High
0x0200	Start 2	Active High
0x0400	Coin 1	Active High
0x0800	Coin 2	Active High
0x1000	Unknown	Active High
0x2000	Unknown	Active High
0x4000	Unknown	Active High
0x8000	Unknown	Active High

0x600000-0x6001FF

512

RAM Device Write, Shared

palette, palette_device, write, palette

0x700000-0x701FFF

8192

Device Read/Write

pandora, kaneko_pandora_device, spriteram_LSB_r, spriteram_LSB_w

0x800000-0x800001

Write

snowbros_irq4_ack_w (/* IRQ 4 acknowledge */)

0x900000-0x900001

Write

snowbros_irq3_ack_w (/* IRQ 3 acknowledge */)

0xA00000-0xA00001

Write

snowbros_irq2_ack_w (/* IRQ 2 acknowledge */)

Memory Area:sound_io_map

Address Range	Length	Function	Description
0x0002-0x0003	2	Device Read/Write	ymsnd, ym3812_device, read, write
0x0004	1	Device Read/Write	soundlatch, generic_latch_8_device, read, write (/* goes back to the main CPU, checked during boot */)

Memory Area:sound_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0x87FF	2048	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:cpu2

Address Range	Length	Label/Location	Description
0x0000-0xFFFF	65536	87c52.mcu	can't be dumped
0x0000-0x01FF	512	protdata.bin	CRC(d61f4f07)

Memory Area:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x7FFFF	524288	u75	CRC(0142c085)
0x80000-0xFFFFF	524288	u76	CRC(27fda507)
0x100000-0x17FFFF	524288	u77	CRC(4dfe0550)
0x180000-0x1FFFFF	524288	u78	CRC(f1b74978)

Memory Area:oki

Address Range	Length	Label/Location	Description
0x0000-0x3FFFF	262144	u14	CRC(28a62d23)

Memory Area:soundcpu

Address Range	Length	Label/Location	Description
0x0000-0xFFFF	65536	u35	CRC(79e965b4)