X Multiply 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.

X Multiply (Irem, 1989)

Memory Area:m72_portmap

Address Range	Length	Function	Description
0x0000-0x0001	2	Read Port	IN0
0x0000-0x0001	2	Device Write	m72, m72_audio_device, sound_command_w
0x0002-0x0003	2	Read Port	IN1
0x0002-0x0003	2	Write	port02_w (/* coin counters, reset sound cpu, other stuff? */)
0x0004-0x0005	2	Read Port	DSW
0x0004-0x0005	2	Write	dmaon_w
0x0006-0x0007	2	Write	irq_line_w
0x0040-0x0043	4	Device Read/Write 8-bit	upd71059c, pic8259_device, read, write, 0x00ff
0x0080-0x0081	2	Write	scrolly1_w
0x0082-0x0083	2	Write	scrollx1_w
0x0084-0x0085	2	Write	scrolly2_w
0x0086-0x0087	2	Write	scrollx2_w

Memory Area:mcu_io_map

Address Range	Length	Function	Description
0x0000	1	Read/Write	mcu_port_r, mcu_port_w
0x0000	1	Read/Write	mcu_sample_r, mcu_low_w
0x0001	1	Write	mcu_high_w
0x0002	1	Read/Write	mcu_snd_r, mcu_ack_w
0xC000-0xCFFF	4096	Read/Write	mcu_data_r,mcu_data_w

Memory Area:sound_portmap

Address Range	Length	Function	Description
0x0000-0x0001	2	Device Read/Write	ymsnd, ym2151_device, read, write
0x0002	1	Device Read	soundlatch, generic_latch_8_device, read
0x0006	1	Device Write	m72, m72_audio_device, sound_irq_ack_w
0x0082	1	Device Write	m72, m72_audio_device, sample_w
0x0084	1	Device Read	m72, m72_audio_device, sample_r

Memory Area:sound_ram_map

Address Range	Length	Function	Description
0x0000-0xFFFF	65536	RAM, Shared	soundram

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:gfx2

Address Range	Length	Label/Location	Description
0x0000-0x1FFFF	131072	t53.a0	CRC(1a082494),tiles #1 (Fluke: 5714)
0x0000-0x1FFFF	131072	t53.a0	CRC(1a082494),tiles #1 (Fluke: 5714)
0x20000-0x3FFFF	131072	t54.a1	CRC(076c16c5) (Fluke: 9D0E)
0x20000-0x3FFFF	131072	t54.a1	CRC(076c16c5) (Fluke: 9D0E)
0x40000-0x5FFFF	131072	t55.a2	CRC(25d877a5) (Fluke: 5158)
0x40000-0x5FFFF	131072	t55.a2	CRC(25d877a5) (Fluke: 5158)
0x60000-0x7FFFF	131072	t56.a3	CRC(5b1213f5) (Fluke: 939D)
0x60000-0x7FFFF	131072	t56.a3	CRC(5b1213f5) (Fluke: 939D)

Memory Area:gfx3

Address Range	Length	Label/Location	Description
0x0000-0x1FFFF	131072	t57.b0	CRC(0a84e0c7),tiles #2 (Fluke: 747F)
0x0000-0x1FFFF	131072	t57.b0	CRC(0a84e0c7),tiles #2 (Fluke: 747F)
0x20000-0x3FFFF	131072	t58.b1	CRC(a874121d) (Fluke: 2BDB)
0x20000-0x3FFFF	131072	t58.b1	CRC(a874121d) (Fluke: 2BDB)
0x40000-0x5FFFF	131072	t59.b2	CRC(69deb990) (Fluke: 9CCB)
0x40000-0x5FFFF	131072	t59.b2	CRC(69deb990) (Fluke: 9CCB)
0x60000-0x7FFFF	131072	t60.b3	CRC(14c69f99) (Fluke: 7E40)
0x60000-0x7FFFF	131072	t60.b3	CRC(14c69f99) (Fluke: 7E40)

Memory Area:mcu

Address Range	Length	Label/Location	Description
0x0000-0x0FFF	4096	xmultipl_i8751h.bin	CRC(c8ceb3cd)

Memory Area:samples

Address Range	Length	Label/Location	Description
0x0000-0x1FFFF	131072	t52.v0	CRC(2db1bd80) (Fluke: CBE7)
0x0000-0x1FFFF	131072	t52.v0	CRC(2db1bd80) (Fluke: CBE7)

Memory Area:sprites

Address Range	Length	Label/Location	Description
0x0000-0x1FFFF	131072	t44.00	CRC(db45186e),sprites (Fluke: 68B5)
0x0000-0x1FFFF	131072	t44.00	CRC(db45186e),sprites (Fluke: 68B5)
0x20000-0x3FFFF	131072	t45.01	CRC(4d0764d4) (Fluke: EBE3)
0x20000-0x3FFFF	131072	t45.01	CRC(4d0764d4) (Fluke: EBE3)
0x40000-0x5FFFF	131072	t46.10	CRC(f0c465a4) (Fluke: 0BD2)
0x40000-0x5FFFF	131072	t46.10	CRC(f0c465a4) (Fluke: 0BD2)
0x60000-0x7FFFF	131072	t47.11	CRC(1263b24b) (Fluke: 0522)
0x60000-0x7FFFF	131072	t47.11	CRC(1263b24b) (Fluke: 0522)
0x80000-0x9FFFF	131072	t48.20	CRC(4129944f) (Fluke: 7297)
0x80000-0x9FFFF	131072	t48.20	CRC(4129944f) (Fluke: 7297)
0xA0000-0xBFFFF	131072	t49.21	CRC(2346e6f9) (Fluke: DD88)
0xA0000-0xBFFFF	131072	t49.21	CRC(2346e6f9) (Fluke: DD88)
0xC0000-0xDFFFF	131072	t50.30	CRC(e322543e) (Fluke: 268B)
0xC0000-0xDFFFF	131072	t50.30	CRC(e322543e) (Fluke: 268B)
0xE0000-0xFFFFF	131072	t51.31	CRC(229bf7b1) (Fluke: 972F)
0xE0000-0xFFFFF	131072	t51.31	CRC(229bf7b1) (Fluke: 972F)