TX-1 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.

TX-1 (Tatsumi (Atari / Namco / Taito license), 1983)

Memory Area:tx1_main

Address Range	Length	Function	Description
0x0000-0x0FFF	4096	Mirror, RAM	0x1000,
0x2000-0x2FFF	4096	Mirror, RAM	0x1000,
0x4000-0x4FFF	4096	Mirror, RAM, Shared	0x1000, , nvram
0x6000-0x6FFF	4096	Read/Write	tx1_crtc_r, tx1_crtc_w
0x8000-0x9FFF	8192	RAM, Shared	vram
0xA000-0xAFFF	4096	RAM, Shared	rcram
0xB000-0xB001	2	Read/Write	dipswitches_r, z80_busreq_w
0xC000-0xC001	2	Write	tx1_scolst_w
0xD000-0xD003	4	Write	tx1_slincs_w
0xE000-0xE001	2	Write	tx1_slock_w
0xF000-0xF001	2	Device Read, Write	watchdog, watchdog_timer_device, reset16_r, resume_math_w
0x10000-0x1FFFF	65536	Read/Write	z80_shared_r, z80_shared_w
0x20000-0x2FFFF	65536	Mirror, ROM	0xd0000,

Memory Area:tx1_math

Address Range	Length	Function	Description
0x0000-0x07FF	2048	RAM, Shared	math_ram
0x0800-0x0FFF	2048	Read/Write	tx1_spcs_ram_r, tx1_spcs_ram_w
0x1000-0x1FFF	4096	RAM, Shared	rcram
0x2000-0x22FF	768	RAM, Shared	objram
0x2400-0x27FF	1024	Write	tx1_bankcs_w
0x2800-0x2BFF	1024	Write	halt_math_w
0x2C00-0x2FFF	1024	Write	tx1_flgcs_w
0x3000-0x3FFF	4096	Read/Write	tx1_math_r, tx1_math_w
0x4000-0x7FFF	16384	Mirror, ROM	0xf8000,
0x5000-0x7FFF	12288	Read	tx1_spcs_rom_r

Memory Area:tx1_sound_io

Address Range	Length	Function	Description
0x0040-0x0041	2	Device Write	aysnd, ay8910_device, data_address_w

Memory Area:tx1_sound_prg

Address Range

Length

Function

Description

0x0000-0x1FFF

8192

ROM

0x3000-0x37FF

2048

RAM, Mirror, Shared

0x800, z80_ram

0x4000

Write

z80_intreq_w

0x5000-0x5003

Device Read/Write

ppi8255, i8255_device, read, write

0x0001	Coin 1	Active High
0x0002	Coin 2	Active High
0x0008	Gear Change	Active High
0x0010	Coin 3	Active High

0x6000-0x6003

Device Read/Write

tx1, tx1_sound_device, pit8253_r, pit8253_w

0x7000-0x7FFF

4096

Write

tx1_ppi_latch_w

0xB000-0xBFFF

4096

Read/Write

ts_r, ts_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:audio_cpu

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	8411-136027-157.11	CRC(10ae3075) (Fluke: 7004)

Memory Area:char_tiles

Address Range	Length	Label/Location	Description
0x0000-0x3FFF	16384	8411-136027-156.204	CRC(60f3c616) (Fluke: D5C8)
0x4000-0x7FFF	16384	8411-136027-155.174	CRC(e59a6b72) (Fluke: DD8D)

Memory Area:obj_luts

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	8411-136027-113.48	CRC(4b3d7956) (Fluke: 7AAB)
0x2000-0x5FFF	16384	8411-136027-118.281	CRC(de418dc7) (Fluke: A738)

Memory Area:obj_map

Address Range	Length	Label/Location	Description
0x0000-0x3FFF	16384	8411-136027-119.106	CRC(88eec0fb) (Fluke: 6A53)
0x4000-0x7FFF	16384	8411-136027-120.73	CRC(407cbe65) (Fluke: 3A5C)

Memory Area:obj_tiles

Address Range	Length	Label/Location	Description
0x0000-0x3FFF	16384	8411-136027-114.203	CRC(fc91328b) (Fluke: EDB4)
0x4000-0x7FFF	16384	8411-136027-116.258	CRC(5745f671) (Fluke: 6CF2)
0x8000-0xBFFF	16384	8411-136027-115.173	CRC(720e5873) (Fluke: C799)
0xC000-0xFFFF	16384	8411-136027-117.232	CRC(3c68d0bc) (Fluke: 0C19)

Memory Area:proms

Address Range	Length	Label/Location	Description
0x0000-0x00FF	256	136027-133.57	CRC(3b387d01) (Fluke: 9741)
0x0100-0x01FF	256	136027-134.58	CRC(f6f4d7d9) (Fluke: D7EC)
0x0200-0x02FF	256	136027-135.59	CRC(824e7532) (Fluke: 12C0)
0x0300-0x03FF	256	136027-133.36	CRC(3b387d01) (Fluke: 9741)
0x0400-0x04FF	256	136027-134.37	CRC(f6f4d7d9) (Fluke: D7EC)
0x0500-0x05FF	256	136027-135.38	CRC(824e7532) (Fluke: 12C0)
0x0600-0x06FF	256	136027-133.8	CRC(3b387d01) (Fluke: 9741)
0x0700-0x07FF	256	136027-134.9	CRC(f6f4d7d9) (Fluke: D7EC)
0x0800-0x08FF	256	136027-135.10	CRC(824e7532) (Fluke: 12C0)
0x0900-0x09FF	256	136027-124.85	CRC(5aeef5cc) (Fluke: 1F7D)
0x0A00-0x0AFF	256	136027-124.116	CRC(5aeef5cc) (Fluke: 1F7D)
0x0B00-0x0BFF	256	136027-124.148	CRC(5aeef5cc) (Fluke: 1F7D)
0x0C00-0x0DFF	512	136027-136.276	CRC(7b675b8b) (Fluke: E70E)
0x0E00-0x0FFF	512	136027-136.277	CRC(7b675b8b) (Fluke: E70E)
0x1000-0x10FF	256	136027-123.25	CRC(616a7a85) (Fluke: 40BC)
0x1100-0x12FF	512	136027-138.ic33	CRC(fafb6917) (Fluke: C807)
0x1300-0x14FF	512	136027-139.ic40	CRC(93deb894) (Fluke: 84AB)
0x1500-0x16FF	512	136027-140.ic49	CRC(aa5ed232) (Fluke: 1162)
0x1700-0x18FF	512	136027-141.ic50	CRC(6b424cea) (Fluke: A60E)

Memory Area:road

Address Range	Length	Label/Location	Description
0x0000-0x1FFF	8192	8411-136027-146.56	CRC(5635b8c1) (Fluke: 87F0)
0x2000-0x3FFF	8192	8411-136027-147.66	CRC(03d83cf8) (Fluke: 72DA)
0x4000-0x5FFF	8192	8411-136027-148.76	CRC(ad56013a) (Fluke: E601)