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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.
Metal Freezer (Seibu Kaihatsu, 1989)
Memory Area:metlfrzr_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank1
0xC000-0xCFFF4096RAM, Sharedvram
0xD000-0xD1FF512RAM Device Write, Sharedpalette, palette_device, write_indirect, palette
0xD200-0xD3FF512RAM Device Write, Sharedpalette, palette_device, write_indirect_ext, palette_ext
0xD400-0xD47F128Device Read/Writet5182, t5182_device, sharedram_r, sharedram_w
0xD6001Read PortP1
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x00c0UnknownActive Low
0xD600-0xD61F32RAM, Sharedvregs (// TODO: write-only, debug)
0xD6011Read PortP2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x00c0UnknownActive Low
0xD6021Read PortSTART
0x0001NoActive High
0x0000YesActive High
0x0002NoActive High
0x0000YesActive High
0x0004NoActive High
0x0000YesActive High
0x0008NoActive High
0x0000YesActive High
0x0010Start 1Active High
0x0020Start 2Active High
0x0040NoActive High
0x0000YesActive High
0x0080NoActive High
0x0000YesActive High
0xD6031Read PortDSW1
0x0001CabinetActive High
0x0000UprightActive High
0x0001CocktailActive High
0x0004Flip_ScreenActive High
0x0004OffActive High
0x0000OnActive High
0x0038Coin_AActive High
0x00005C_1CActive High
0x00204C_1CActive High
0x00103C_1CActive High
0x00302C_1CActive High
0x00381C_1CActive High
0x00181C_2CActive High
0x00281C_3CActive High
0x00081C_5CActive High
0x00c0Coin_BActive High
0x00802C_1CActive High
0x00002C_3CActive High
0x00c01C_1CActive High
0x00401C_2CActive High
0xD6041Read PortDSW2
0x0003DifficultyActive High
0x0002AActive High
0x0003BActive High
0x0001CActive High
0x0000DActive High
0x000cBonus_LifeActive High
0x000820k, 50k, 100kActive High
0x000c30k, 80k, 150kActive High
0x000450k, 100k, 200kActive High
0x0000100k, 200k, 400kActive High
0x0030LivesActive High
0x00201Active High
0x00102Active High
0x00303Active High
0x00004Active High
0x0040Level_SelectActive High
0x0040OffActive High
0x0000OnActive High
0x0080Demo_SoundsActive High
0x0080OffActive High
0x0000OnActive High
0xD7001Writeoutput_w
0xD7101Device Writet5182, t5182_device, sound_irq_w
0xD7111Device Readt5182, t5182_device, sharedram_semaphore_snd_r
0xD7121Device Writet5182, t5182_device, sharedram_semaphore_main_release_w
0xD7131Device Writet5182, t5182_device, sharedram_semaphore_main_acquire_w
0xD800-0xDFFF2048RAM
0xE000-0xEFFF4096RAM
0xF000-0xFFFF4096RAM, Sharedwram
 

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:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF327681.15jCRC(f59b5fa2)
0x10000-0x1FFFF655362.14jCRC(21ecc248)
Memory Area:plds
Address RangeLengthLabel/LocationDescription
0x0000-0x0148329pld3.14h.binCRC(8183f7f0)
0x0000-0x0148329pld8.4d.binCRC(f1e35034)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256n82s135n.9cCRC(7bbd52db)
0x0000-0x00FF256n8s129a.7fCRC(c849d60b)
Memory Area:t5182_z80
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF327683.4hCRC(36f88e54)
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