Roller Aces 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.

Roller Aces (Kaneko (Williams license), 1983)

Memory Area:rollrace_map

Address Range	Length	Function	Description
0x0000-0x7FFF	32768	ROM
0x8000-0x9FFF	8192	ROM	(/* only rollace2 */)
0xC000-0xCFFF	4096	RAM
0xD806	1	Read NOP	(/* looks like a watchdog, bit4 checked*/)
0xD900	1	Read/Write	fake_d800_r,fake_d800_w (/* protection ??*/)
0xE000-0xE3FF	1024	RAM Write, Shared	vram_w, videoram
0xE400-0xE47F	128	RAM Write, Shared	cram_w, colorram
0xE800	1	Device Write	soundlatch, generic_latch_8_device, write
0xEC00-0xEC0F	16	Read/Write NOP	(/* Analog sound effects ?? ec00 sound enable ?*/)
0xF000-0xF0FF	256	RAM, Shared	spriteram
0xF400	1	Write	backgroundcolor_w
0xF800	1	Read Port	P1
0xF801	1	Read Port, Write	P2, bkgpen_w
0xF802	1	Read Port, Write	SYSTEM, backgroundpage_w
0xF803	1	Write	flipy_w
0xF804	1	Read Port	DSW1
0xF805	1	Read Port	DSW2
0xFC00	1	Write	flipx_w
0xFC01	1	Write	nmi_mask_w
0xFC02-0xFC03	2	Write	coin_w
0xFC04-0xFC05	2	Write	charbank_w
0xFC06	1	Write	spritebank_w

Memory Area:rollrace_sound_map

Address Range	Length	Function	Description
0x0000-0x0FFF	4096	ROM
0x2000-0x2FFF	4096	RAM
0x3000	1	Device Read, Write	soundlatch, generic_latch_8_device, read, sound_nmi_mask_w
0x4000-0x4001	2	Device Write	ay1, ay8910_device, address_data_w
0x5000-0x5001	2	Device Write	ay2, ay8910_device, address_data_w
0x6000-0x6001	2	Device Write	ay3, ay8910_device, address_data_w

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
0x0000-0x0FFF	4096	8.6f	CRC(6ec3c545) (Fluke: 4FF0)
0x0000-0x0FFF	4096	8.6f	CRC(6ec3c545) (Fluke: 4FF0)

Memory Area:gfx1

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	w3.7m	CRC(f9970aae) (Fluke: 2FFA)
0x2000-0x3FFF	8192	w2.8m	CRC(80573091) (Fluke: F4D5)
0x4000-0x5FFF	8192	w1.9m	CRC(b37effd8) (Fluke: 0F23)

Memory Area:maincpu

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	w1.8k	CRC(c0bd3cf3) (Fluke: AA0A)
0x2000-0x3FFF	8192	w2.8h	CRC(c1900a75) (Fluke: D0F6)
0x4000-0x5FFF	8192	w3.8f	CRC(16ceced6) (Fluke: 3AB4)
0x6000-0x7FFF	8192	w4.8d	CRC(ae826a96) (Fluke: 6451)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	tbp24s10.7u	CRC(9d199d33) (Fluke: 371A)
0x0000-0x00FF	256	tbp24s10.7u	CRC(9d199d33) (Fluke: 371A)
0x0100-0x01FF	256	tbp24s10.7t	CRC(c0426582) (Fluke: D8E9)
0x0100-0x01FF	256	tbp24s10.7t	CRC(c0426582) (Fluke: D8E9)
0x0200-0x02FF	256	tbp24s10.6t	CRC(c096e05c) (Fluke: E248)
0x0200-0x02FF	256	tbp24s10.6t	CRC(c096e05c) (Fluke: E248)