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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.
Operation Bear (bootleg (Bear Corporation Korea), 1987)
Memory Area:opwolf_sound_z80_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x7FFF16384ROM Bankz80bank
0x8000-0x8FFF4096RAM
0x9000-0x90012Device Read/Writeymsnd, ym2151_device,read,write
0x9002-0x9100255Read NOP
0xA0001Device Writetc0140syt, tc0140syt_device, slave_port_w
0xA0011Device Read/Writetc0140syt, tc0140syt_device, slave_comm_r, slave_comm_w
0xB000-0xB0067Writeopwolf_adpcm_b_w
0xC000-0xC0067Writeopwolf_adpcm_c_w
0xD0001Writeopwolf_adpcm_d_w
0xE0001Writeopwolf_adpcm_e_w
Memory Area:opwolfb_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM
0xF0008-0xF000B4Readopwolf_in_r (/* coins and buttons */)
0xFF000-0xFFFFF4096Read/Writecchip_r,cchip_w
0x100000-0x107FFF32768RAM
0x200000-0x200FFF4096RAM Device Write, Sharedpalette, palette_device, write, palette
0x380000-0x3800034Writeopwolf_spritectrl_w (// usually 0x4, changes when you fire)
0x380000-0x3800034Readopwolf_dsw_r (/* dip switches */)
0x3A0000-0x3A00034Readopwolf_lightgun_r (/* lightgun, read at $11e0/6 */)
0x3C0000-0x3C00012Write NOP(/* watchdog ?? */)
0x3E0000-0x3E00012Read NOP, Device Write 8-bittc0140syt, tc0140syt_device, master_port_w, 0xff00
0x3E0002-0x3E00032Device Read/Write 8-bittc0140syt, tc0140syt_device, master_comm_r, master_comm_w, 0xff00
0xC00000-0xC0FFFF65536Device Read/Writepc080sn, pc080sn_device, word_r, word_w
0xC10000-0xC1FFFF65536Write Only(/* error in init code (?) */)
0xC20000-0xC200034Device Writepc080sn, pc080sn_device, yscroll_word_w
0xC40000-0xC400034Device Writepc080sn, pc080sn_device, xscroll_word_w
0xC50000-0xC500034Device Writepc080sn, pc080sn_device, ctrl_word_w
0xD00000-0xD03FFF16384Device Read/Writepc090oj, pc090oj_device, word_r, word_w (/* sprite ram */)
Memory Area:opwolfb_sub_z80_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x88001Readz80_input1_r (/* read at PC=$637: poked to $c004 */)
0x90001Write NOP(/* unknown write, 0 then 1 each interrupt */)
0x98001Readz80_input2_r (/* read at PC=$631: poked to $c005 */)
0xA0001Write NOP(/* IRQ acknowledge (unimplemented) */)
0xC000-0xC7FF2048RAM, Sharedcchip_ram
 

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
0x0000-0x7FFF32768opwlfb.30CRC(0669b94c) (Fluke: A43B)
Memory Area:sub
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768opwlfb.09CRC(ab27a3dd) (Fluke: DAD1)
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