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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.
ThunderJaws (Atari Games, 1990)
Memory Area:extra_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM
0x60000-0x7FFFF131072ROM
0x160000-0x16FFFF65536RAM, Sharedshare1
0x260000-0x26000F16Read Port260000
0xffffUnusedActive Low
0x260010-0x2600112Read Port260010
0x00ffUnusedActive Low
0x0100Button 1Active Low
0x0200Button 2Active Low
0x0c00UnusedActive Low
0x1000Joystick RightActive Low
0x2000Joystick LeftActive Low
0x4000Joystick DownActive Low
0x8000Joystick UpActive Low
0x260012-0x2600132Readspecial_port2_r
0x260030-0x2600312Device Read 8-bitjsa, atari_jsa_ii_device, main_response_r, 0x00ff
0x360000-0x3600012Writevideo_int_ack_w
0x360010-0x3600112Writelatch_w
0x360020-0x3600212Device Writejsa, atari_jsa_ii_device, sound_reset_w
0x360030-0x3600312Device Write 8-bitjsa, atari_jsa_ii_device, main_command_w, 0x00ff
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x9FFFF655360ROM
0xE0000-0xE0FFF4096Device Read/Write 8-biteeprom, atari_eeprom_device, read, write, 0x00ff
0x160000-0x16FFFF65536RAM, Sharedshare1
0x1F0000-0x1FFFFF65536Device Writeeeprom, atari_eeprom_device, unlock_write
0x260000-0x26000F16Read Port260000
0xffffUnusedActive Low
0x260010-0x2600112Read Port260010
0x00ffUnusedActive Low
0x0100Button 1Active Low
0x0200Button 2Active Low
0x0c00UnusedActive Low
0x1000Joystick RightActive Low
0x2000Joystick LeftActive Low
0x4000Joystick DownActive Low
0x8000Joystick UpActive Low
0x260012-0x2600132Readspecial_port2_r
0x260030-0x2600312Device Read 8-bitjsa, atari_jsa_ii_device, main_response_r, 0x00ff
0x2E0000-0x2E00012Device Writewatchdog, watchdog_timer_device, reset16_w
0x360010-0x3600112Writelatch_w
0x360020-0x3600212Device Writejsa, atari_jsa_ii_device, sound_reset_w
0x360030-0x3600312Device Write 8-bitjsa, atari_jsa_ii_device, main_command_w, 0x00ff
0x3E0000-0x3E0FFF4096RAM Device Write, Sharedpalette, palette_device, write, palette
0x3EFFC0-0x3EFFFF64Device Read/Writevad, atari_vad_device, control_read, control_write
0x3F0000-0x3F1FFF8192RAM Device Write, Sharedvad, atari_vad_device, playfield2_latched_msb_w, vad:playfield2
0x3F2000-0x3F3FFF8192RAM Device Write, Sharedvad, atari_vad_device, playfield_latched_lsb_w, vad:playfield
0x3F4000-0x3F5FFF8192RAM Device Write, Sharedvad, atari_vad_device, playfield_upper_w, vad:playfield_ext
0x3F6000-0x3F7FFF8192RAM, Sharedvad:mob
0x3F8000-0x3F8EFF3840RAM Device Write, Sharedvad, atari_vad_device, alpha_w, vad:alpha
0x3F8F00-0x3F8F7F128RAM, Sharedvad:eof
0x3F8F80-0x3F8FFF128RAM, Sharedvad:mob:slip
0x3F9000-0x3FFFFF28672RAM
 

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:gfx1
Address RangeLengthLabel/LocationDescription
0x10000-0x1FFFF65536136076-1025.5rCRC(839feed5) (Fluke: 2604)
0x10000-0x1FFFF65536136076-1025.5rCRC(839feed5) (Fluke: 2604)
0x20000-0x2FFFF65536136076-1029.3pCRC(fa887662) (Fluke: 0F06)
0x20000-0x2FFFF65536136076-1029.3pCRC(fa887662) (Fluke: 0F06)
0x30000-0x3FFFF65536136076-1033.6pCRC(2addda79) (Fluke: D344)
0x30000-0x3FFFF65536136076-1033.6pCRC(2addda79) (Fluke: D344)
0x50000-0x5FFFF65536136076-1026.9rCRC(216e72c8) (Fluke: 8C50)
0x50000-0x5FFFF65536136076-1026.9rCRC(216e72c8) (Fluke: 8C50)
0x60000-0x6FFFF65536136076-1030.10sCRC(dc51f606) (Fluke: 3861)
0x60000-0x6FFFF65536136076-1030.10sCRC(dc51f606) (Fluke: 3861)
0x70000-0x7FFFF65536136076-1034.10rCRC(f8e35516) (Fluke: 7DBC)
0x70000-0x7FFFF65536136076-1034.10rCRC(f8e35516) (Fluke: 7DBC)
0x90000-0x9FFFF65536136076-1027.13rCRC(621cc2ce) (Fluke: 8EF5)
0x90000-0x9FFFF65536136076-1027.13rCRC(621cc2ce) (Fluke: 8EF5)
0xA0000-0xAFFFF65536136076-1031.14sCRC(4682ceb5) (Fluke: F75E)
0xA0000-0xAFFFF65536136076-1031.14sCRC(4682ceb5) (Fluke: F75E)
0xB0000-0xBFFFF65536136076-1035.14rCRC(7a0e1b9e) (Fluke: 4253)
0xB0000-0xBFFFF65536136076-1035.14rCRC(7a0e1b9e) (Fluke: 4253)
0xD0000-0xDFFFF65536136076-1028.17rCRC(0cc20245) (Fluke: FB29)
0xD0000-0xDFFFF65536136076-1028.17rCRC(0cc20245) (Fluke: FB29)
0xE0000-0xEFFFF65536136076-1032.14pCRC(f639161a) (Fluke: 8FCC)
0xE0000-0xEFFFF65536136076-1032.14pCRC(f639161a) (Fluke: 8FCC)
0xF0000-0xFFFFF65536136076-1036.16pCRC(b342443d) (Fluke: DB22)
0xF0000-0xFFFFF65536136076-1036.16pCRC(b342443d) (Fluke: DB22)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536136076-1037.2sCRC(07addba6) (Fluke: 9E46)
0x0000-0xFFFF65536136076-1037.2sCRC(07addba6) (Fluke: 9E46)
0x10000-0x1FFFF65536136076-1041.2rCRC(1e9c29e4) (Fluke: 07CE)
0x10000-0x1FFFF65536136076-1041.2rCRC(1e9c29e4) (Fluke: 07CE)
0x20000-0x2FFFF65536136076-1045.34sCRC(e7235876) (Fluke: EB62)
0x20000-0x2FFFF65536136076-1045.34sCRC(e7235876) (Fluke: EB62)
0x30000-0x3FFFF65536136076-1049.34rCRC(a6eb8265) (Fluke: 28EC)
0x30000-0x3FFFF65536136076-1049.34rCRC(a6eb8265) (Fluke: 28EC)
0x40000-0x4FFFF65536136076-1038.6sCRC(2ea543f9) (Fluke: 7890)
0x40000-0x4FFFF65536136076-1038.6sCRC(2ea543f9) (Fluke: 7890)
0x50000-0x5FFFF65536136076-1042.6rCRC(efabdc2b) (Fluke: 0A31)
0x50000-0x5FFFF65536136076-1042.6rCRC(efabdc2b) (Fluke: 0A31)
0x60000-0x6FFFF65536136076-1046.7sCRC(6692151f) (Fluke: C667)
0x60000-0x6FFFF65536136076-1046.7sCRC(6692151f) (Fluke: C667)
0x70000-0x7FFFF65536136076-1050.7rCRC(ad7bb5f3) (Fluke: EBF6)
0x70000-0x7FFFF65536136076-1050.7rCRC(ad7bb5f3) (Fluke: EBF6)
0x80000-0x8FFFF65536136076-1039.11sCRC(cb563a40) (Fluke: DDE3)
0x80000-0x8FFFF65536136076-1039.11sCRC(cb563a40) (Fluke: DDE3)
0x90000-0x9FFFF65536136076-1043.11rCRC(b7565eee) (Fluke: D89F)
0x90000-0x9FFFF65536136076-1043.11rCRC(b7565eee) (Fluke: D89F)
0xA0000-0xAFFFF65536136076-1047.12sCRC(60877136) (Fluke: FA12)
0xA0000-0xAFFFF65536136076-1047.12sCRC(60877136) (Fluke: FA12)
0xB0000-0xBFFFF65536136076-1051.12rCRC(d4715ff0) (Fluke: 67DC)
0xB0000-0xBFFFF65536136076-1051.12rCRC(d4715ff0) (Fluke: 67DC)
0xC0000-0xCFFFF65536136076-1040.15sCRC(6e910fc2) (Fluke: 3B19)
0xC0000-0xCFFFF65536136076-1040.15sCRC(6e910fc2) (Fluke: 3B19)
0xD0000-0xDFFFF65536136076-1044.15rCRC(ff67a17a) (Fluke: 5781)
0xD0000-0xDFFFF65536136076-1044.15rCRC(ff67a17a) (Fluke: 5781)
0xE0000-0xEFFFF65536136076-1048.16sCRC(200d45b3) (Fluke: 29D0)
0xE0000-0xEFFFF65536136076-1048.16sCRC(200d45b3) (Fluke: 29D0)
0xF0000-0xFFFFF65536136076-1052.16rCRC(74711ef1) (Fluke: 2027)
0xF0000-0xFFFFF65536136076-1052.16rCRC(74711ef1) (Fluke: 2027)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536136076-1020.4mCRC(65470354),alphanumerics (Fluke: A493)
0x0000-0xFFFF65536136076-1020.4mCRC(65470354),alphanumerics (Fluke: A493)
Memory Area:jsa:cpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536136076-2015.1bCRC(d8feb7fb),Rev 2 program rom (Fluke: 265A)
0x0000-0xFFFF65536136076-2015.1bCRC(d8feb7fb),Rev 2 program rom (Fluke: 265A)
Memory Area:jsa:oki1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536136076-1016.7kCRC(c10bdf73) (Fluke: 4502)
0x0000-0xFFFF65536136076-1016.7kCRC(c10bdf73) (Fluke: 4502)
0x10000-0x1FFFF65536136076-1017.7jCRC(4e5e25e8) (Fluke: 9927)
0x10000-0x1FFFF65536136076-1017.7jCRC(4e5e25e8) (Fluke: 9927)
0x20000-0x2FFFF65536136076-1018.7eCRC(ec81895d) (Fluke: 8700)
0x20000-0x2FFFF65536136076-1018.7eCRC(ec81895d) (Fluke: 8700)
0x30000-0x3FFFF65536136076-1019.7dCRC(a4009037) (Fluke: AAB6)
0x30000-0x3FFFF65536136076-1019.7dCRC(a4009037) (Fluke: AAB6)
Memory Area:plds
Address RangeLengthLabel/LocationDescription
0x0000-0x0116279gal16v8a-136076-1070.12eCRC(0e96e51e) (Fluke: FAEF)
0x0000-0x0116279gal16v8a-136076-1070.12eCRC(0e96e51e) (Fluke: FAEF)
0x0200-0x0316279gal16v8a-136076-1071.13jCRC(ad7beb34) (Fluke: D7EC)
0x0200-0x0316279gal16v8a-136076-1071.13jCRC(ad7beb34) (Fluke: D7EC)
0x0400-0x0516279gal16v8a-136076-1072.5nCRC(2827620a) (Fluke: 8261)
0x0400-0x0516279gal16v8a-136076-1072.5nCRC(2827620a) (Fluke: 8261)
0x0600-0x0716279gal16v8a-136076-1073.2hCRC(a2fe4402) (Fluke: B5DF)
0x0600-0x0716279gal16v8a-136076-1073.2hCRC(a2fe4402) (Fluke: B5DF)
0x0800-0x0916279gal16v8a-136076-2074.3lCRC(0e8bc5d7) (Fluke: C6E1)
0x0800-0x0916279gal16v8a-136076-2074.3lCRC(0e8bc5d7) (Fluke: C6E1)
0x0A00-0x0B56343gal20v8a-136076-1075.2lCRC(e75e1e86) (Fluke: 3A55)
0x0A00-0x0B56343gal20v8a-136076-1075.2lCRC(e75e1e86) (Fluke: 3A55)
0x0C00-0x0D56343gal20v8a-136076-1076.1lCRC(f36f873a) (Fluke: 3FB0)
0x0C00-0x0D56343gal20v8a-136076-1076.1lCRC(f36f873a) (Fluke: 3FB0)
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