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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.
Knight Boy (bootleg, 1986)
Memory Area:mexico86_m68705_map
Address RangeLengthFunctionDescription
0x00001Read/Writemexico86_68705_port_a_r,mexico86_68705_port_a_w
0x00011Read/Writemexico86_68705_port_b_r,mexico86_68705_port_b_w
0x00021Read PortIN0 (/* COIN */)
0x00041Writemexico86_68705_ddr_a_w
0x00051Writemexico86_68705_ddr_b_w
0x000A1Write NOP(/* looks like a bug in the code, writes to */)
0x0010-0x007F112RAM
0x0080-0x07FF1920ROM
Memory Area:mexico86_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank1 (/* banked roms */)
0xC000-0xD4FF5376RAM, Sharedvideoram
0xC000-0xE7FF10240RAM, Sharedshare1 (/* shared with sound cpu */)
0xD500-0xD7FF768RAM, Sharedobjectram
0xE800-0xE8FF256RAM, Sharedprotection_ram (/* shared with mcu */)
0xE900-0xEFFF1792RAM
0xF0001Writemexico86_bankswitch_w (/* program and gfx ROM banks */)
0xF0081Writemexico86_f008_w (/* cpu reset lines + other unknown stuff */)
0xF0101Read PortIN3
0xF0181Write NOP(/* watchdog? */)
0xF800-0xFFFF2048RAM, Sharedshare2 (/* communication ram - to connect 4 players's subboard */)
Memory Area:mexico86_sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xA7FF10240RAM, Sharedshare1
0xA800-0xBFFF6144RAM
0xC000-0xC0012Read, Device Writekiki_ym2203_r, ymsnd, ym2203_device, write
Memory Area:mexico86_sub_cpu_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x47FF2048RAM(/* sub cpu ram */)
0x8000-0x87FF2048RAM, Sharedshare2 (/* shared with main */)
0xC0001Read PortIN4
0xC0011Read PortIN5
0xC0021Read PortIN6
0xC0031Read PortIN7
0xC0041Writemexico86_sub_output_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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768a85-11.f6CRC(cc3539db) (Fluke: 7947)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536knightb.dCRC(53ecdb3f) (Fluke: 09DB)
0x10000-0x1FFFF65536a85-14.a3CRC(a9df0453) (Fluke: A95E)
0x20000-0x2FFFF65536knightb.bCRC(63ad7df3) (Fluke: 8CBC)
0x30000-0x3FFFF65536a85-12.a6CRC(91e58067) (Fluke: 4803)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x8000-0x17FFF65536a85-16.h18CRC(4094d750),banked at 0x8000 (Fluke: 9557)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048knightb.ucCRC(3cc2bbe4) (Fluke: 2075)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256a85-08.g15CRC(d15f61a8),all proms are 63S141AN or compatible type (Fluke: 6EC4)
0x0100-0x01FF256a85-10.g12CRC(8fc3fa86) (Fluke: 0CB3)
0x0200-0x02FF256a85-09.g14CRC(b931c94d) (Fluke: FAFB)
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