Joyful Road Memory Map

Contributors
Contributors
- Contributor Account
- Sign Up
On-Line Databases
On-Line Databases
Main
Main
Education
Education
My Restorations
My Restorations
- Restorations
- Conversions
Restoring Games
Restoring Games
Repairing Games
Repairing Games
Resources
Resources
Miscellaneous
Miscellaneous

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.

Joyful Road (SNK, 1983)

Memory Area:mnchmobl_map

Address Range	Length	Function	Description
0x0000-0x3FFF	16384	ROM
0x8000-0x83FF	1024	RAM
0xA000-0xA3FF	1024	Mirror, RAM, Shared	0x0400, , sprite_xpos
0xA800-0xABFF	1024	Mirror, RAM, Shared	0x0400, , sprite_tile
0xB000-0xB3FF	1024	Mirror, RAM, Shared	0x0400, , sprite_attr
0xB800-0xB8FF	256	Mirror, RAM, Shared	0x0100, , videoram
0xBABA	1	Write NOP	(/* ? */)
0xBC00-0xBC7F	128	RAM, Shared	status_vram
0xBE00	1	Write	mnchmobl_soundlatch_w
0xBE01	1	Write	mnchmobl_palette_bank_w
0xBE02	1	Read Port	DSW1
0xBE03	1	Read Port	DSW2
0xBE11	1	Write NOP	(/* ? */)
0xBE21	1	Write NOP	(/* ? */)
0xBE31	1	Write NOP	(/* ? */)
0xBE41	1	Write	mnchmobl_flipscreen_w
0xBE61	1	Write	mnchmobl_nmi_enable_w (/* ENI 1-10C */)
0xBF00-0xBF07	8	Write Only, Shared	vreg (/* MY0 1-8C */)
0xBF01	1	Read Port	SYSTEM
0xBF02	1	Read Port	P1
0xBF03	1	Read Port	P2

Memory Area:sound_map

Address Range	Length	Function	Description
0x0000-0x1FFF	8192	ROM
0x2000-0x3FFF	8192	Device Read	soundlatch, generic_latch_8_device, read
0x4000-0x4FFF	4096	Device Write	ay1, ay8910_device, data_w
0x5000-0x5FFF	4096	Device Write	ay1, ay8910_device, address_w
0x6000-0x6FFF	4096	Device Write	ay2, ay8910_device, data_w
0x7000-0x7FFF	4096	Device Write	ay2, ay8910_device, address_w
0x8000-0x9FFF	8192	Read, Device Write	munchmo_ay1reset_r, ay1, ay8910_device, reset_w
0xA000-0xBFFF	8192	Read, Device Write	munchmo_ay2reset_r, ay2, ay8910_device, reset_w
0xC000-0xDFFF	8192	Write	sound_nmi_ack_w
0xE000-0xE7FF	2048	Mirror, RAM	0x1800, (// is mirror ok?)

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
0x0000-0x1FFF	8192	mu.2j	CRC(420adbd4) (Fluke: 2647)

Memory Area:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	s1.10a	CRC(c0bcc301),characters (Fluke: 186F)
0x1000-0x1FFF	4096	s2.10b	CRC(96aa11ca) (Fluke: 449E)

Memory Area:gfx2

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	b1.2c	CRC(8ce3a403),tile layout (Fluke: 7922)
0x1000-0x1FFF	4096	b2.2b	CRC(0df28913),4x8 tiles (Fluke: 32C3)

Memory Area:gfx3

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	f1j.1g	CRC(93c3c17e),sprites (Fluke: CD1B)
0x2000-0x3FFF	8192	f2j.3g	CRC(b3fb5bd2) (Fluke: A2AC)
0x4000-0x5FFF	8192	f3j.5g	CRC(772a7527) (Fluke: 430F)

Memory Area:gfx4

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	h	CRC(332584de),monochrome sprites (Fluke: 0CB6)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	m1j.10e	CRC(1fe86e25) (Fluke: 22B6)
0x2000-0x3FFF	8192	m2j.10d	CRC(b144b9a6) (Fluke: 2E2E)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	a2001.clr	CRC(1b16b907),color prom (Fluke: 0396)