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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.
Mahjong Block Jongbou (SNK, 1987)
Memory Area:jongbou_sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x83FF1024RAM
Memory Area:jongbou_sound_portmap
Address RangeLengthFunctionDescription
0x00001Device Writeaysnd, ay8910_device, address_w
0x00011Device Read/Writeaysnd, ay8910_device, data_r, data_w
0x00021Device Writesoundlatch, generic_latch_8_device, clear_w
0x00061Write NOP
Memory Area:kyros_map
Address RangeLengthFunctionDescription
0x0000-0x1FFFF131072ROM(// main program)
0x20000-0x20FFF4096RAM, Sharedshared_ram (// work RAM)
0x40000-0x41FFF8192RAM, Sharedspriteram (// sprite RAM)
0x60000-0x600012RAM, Sharedvideoram (// MSB: watchdog, LSB: BGC)
0x80000-0x801FF512Read/Writekyros_alpha_trigger_r, alpha_microcontroller_w
0xC0000-0xC00012Read PortIN0
0x0fffUnknownActive High
0x1000Start 1Active High
0x2000Start 2Active High
0x4000Button 1Active High
0x8000Button 1Active High
0xE0000-0xE00012Read/Writekyros_dip_r, kyros_sound_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
0x0000-0x7FFF32768p7.i1CRC(88d74794) (Fluke: AC35)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536p6.l15CRC(1facee65) (Fluke: DF14)
0x10000-0x1FFFF65536p5.k15CRC(db0ad6bb) (Fluke: 3408)
0x20000-0x2FFFF65536p4.j15CRC(56842cfa) (Fluke: C081)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096alpha.mcu
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256r.k2CRC(0563235a) (Fluke: 80A3)
0x0100-0x01FF256g.k1CRC(81fc51f2) (Fluke: D0D0)
0x0200-0x02FF256b.k3CRC(6dfeba56) (Fluke: 0E0D)
0x0300-0x03FF256h.l9CRC(e6e93b0b) (Fluke: 31BB)
0x0400-0x04FF256l.l10CRC(51676dac) (Fluke: 3DB0)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192p3.i15CRC(8c09cd2a) (Fluke: 5B92)
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