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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.
Armed Formation (Nichibutsu, 1988)
Memory Area:armedf_map
Address RangeLengthFunctionDescription
0x0000-0x5FFFF393216ROM
0x60000-0x60FFF4096RAM, Sharedspriteram
0x61000-0x65FFF20480RAM
0x66000-0x66FFF4096RAM Write, Sharedarmedf_bg_videoram_w, bg_videoram
0x67000-0x67FFF4096RAM Write, Sharedarmedf_fg_videoram_w, fg_videoram
0x68000-0x69FFF8192Read/Write 8-bitarmedf_text_videoram_r,armedf_text_videoram_w,0x00ff
0x6A000-0x6AFFF4096RAM Device Write, Sharedpalette, palette_device, write, palette
0x6B000-0x6BFFF4096RAM, Sharedspr_pal_clut
0x6C000-0x6C7FF2048RAM
0x6C000-0x6C0012Read PortP1
0x0100Start 1Active Low
0x0200Start 2Active Low
0x0400Coin 1Active Low
0x0800Coin 2Active Low
0xf000UnknownActive Low
0x6C002-0x6C0032Read PortP2
0x0100Service 1Active Low
0x0400TiltActive Low
0xf800UnknownActive Low
0x6C004-0x6C0052Read PortDSW1
0x0003LivesActive High
0x00033Active High
0x00024Active High
0x00015Active High
0x00006Active High
0x000420kActive High
0x000040kActive High
0x000860kActive High
0x000080kActive High
0x000cBonus_LifeActive High
0x000c20k then every 60kActive High
0x000420k then every 80kActive High
0x000840k then every 60kActive High
0x000040k then every 80kActive High
0x0010Demo_SoundsActive High
0x0000OffActive High
0x0010OnActive High
0x0020CabinetActive High
0x0000UprightActive High
0x0020CocktailActive High
0x00c0DifficultyActive High
0x00c0EasyActive High
0x0080NormalActive High
0x0040HardActive High
0x0000HardestActive High
0xff00UnknownActive Low
0x6C006-0x6C0072Read PortDSW2
0x0003Coin_AActive High
0x00012C_1CActive High
0x00031C_1CActive High
0x00021C_2CActive High
0x0000Free_PlayActive High
0x000cCoin_BActive High
0x00042C_1CActive High
0x000c1C_1CActive High
0x00002C_3CActive High
0x00081C_2CActive High
0x0030Allow_ContinueActive High
0x0030NoActive High
0x00203 TimesActive High
0x00105 TimesActive High
0x0000YesActive High
0x0040Flip_ScreenActive High
0x0040OffActive High
0x0000OnActive High
0xff00UnknownActive Low
0x6D000-0x6D0012Writeterraf_io_w
0x6D002-0x6D0032Writearmedf_bg_scrollx_w
0x6D004-0x6D0052Writearmedf_bg_scrolly_w
0x6D006-0x6D0072Writearmedf_fg_scrollx_w
0x6D008-0x6D0092Writearmedf_fg_scrolly_w
0x6D00A-0x6D00B2Writesound_command_w
0x6D00C-0x6D00D2Write NOP(//watchdog)
0x6D00E-0x6D00F2Writeirq_lv1_ack_w
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0xF7FF63488ROM
0xF800-0xFFFF2048RAM
Memory Area:sound_portmap
Address RangeLengthFunctionDescription
0x0000-0x00012Device Writeymsnd, ym3812_device, write
0x00021Device Writedac1, dac_byte_interface, write
0x00031Device Writedac2, dac_byte_interface, write
0x00041Readsoundlatch_clear_r
0x00061Device Readsoundlatch, generic_latch_8_device, read
 

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 RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536af_10.romCRC(c5eacb87) (Fluke: 33B1)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF3276809.11cCRC(5c6993d5),characters
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536af_04.romCRC(44d3af4f),foreground tiles (Fluke: 950A)
0x10000-0x1FFFF65536af_05.romCRC(92076cab) (Fluke: 0268)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536af_14.romCRC(8c5dc5a7),background tiles (Fluke: C828)
0x10000-0x1FFFF65536af_13.romCRC(136a58a3) (Fluke: 095A)
Memory Area:gfx4
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072af_11.romCRC(b46c473c),sprites (Fluke: A037)
0x20000-0x3FFFF131072af_12.romCRC(23cb6bfe) (Fluke: 8EB9)
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