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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 Janshin Plus (Dynax / Sigma, 1996)
Memory Area:janshinp_map
Address RangeLengthFunctionDescription
0x0000-0x5FFF24576ROM(// ROM)
0x6000-0x6FFF4096RAM(// RAM)
0x7000-0x7FFF4096RAM Bankbank2 (// RAM (Banked))
0x8000-0xFFFF32768ROM Bankbank1 (// ROM (Banked))
0xE000-0xE1FF512Writerongrong_palette_w
Memory Area:janshinp_portmap
Address RangeLengthFunctionDescription
0x00001Read PortDSW1
0x000050Active High
0x000153Active High
0x000256Active High
0x000359Active High
0x000462Active High
0x000565Active High
0x000668Active High
0x000771Active High
0x000875Active High
0x000978Active High
0x000a81Active High
0x000b84Active High
0x000c87Active High
0x000d90Active High
0x000e93Active High
0x000f96Active High
0x00301 2 4 8 12 16 24 32Active High
0x00001 2 3 5 8 15 30 50Active High
0x00202 3 6 8 12 15 30 50Active High
0x00101 2 3 5 10 25 50 100Active High
0x00c01Active High
0x00805Active High
0x004010Active High
0x000020Active High
0x00011Read PortDSW2
0x00031C_1CActive High
0x00021C_2CActive High
0x00011C_5CActive High
0x00001 Coin/10 CreditsActive High
0x000c1Active High
0x00082Active High
0x00043Active High
0x00005Active High
0x0030300Active High
0x0020500Active High
0x0010700Active High
0x00001000Active High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x00021Read PortDSW4
0x0001OffActive High
0x0000OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x00031Read PortDSW3
0x0007CutActive High
0x00061 TActive High
0x0005300Active High
0x0004500Active High
0x0003700Active High
0x00021000Active High
0x00011000Active High
0x00001000Active High
0x00001Active High
0x00082Active High
0x00300Active High
0x0020None?Active High
0x0010Many?Active High
0x0000Only One?Active High
0x0040OffActive High
0x0000OnActive High
0x0080StartActive High
0x0000Flip FlopActive High
0x00041Read PortDSWTOP
0x00015Active High
0x000010Active High
0x0002OffActive High
0x0000OnActive High
0x0000WeakActive High
0x0004NormalActive High
0x000cStrongActive High
0x0008Very StrongActive High
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x00081Writejanshinp_coincounter_w
0x00091Writehanakanz_keyb_w
0x000A1Read PortSYSTEM
0x0001Gamble PayoutActive Low
0x0002UnknownActive Low
0x0008Service 1Active Low
0x0010Service 2Active Low
0x0020Coin 2Active Low
0x0040Coin 1Active Low
0x0080Coin 3Active Low
0x000B-0x000C2Readsryudens_keyb_r
0x001C1Read NOP, Writesryudens_rambank_w (// ? ack on RTC int)
0x001E1Writemjflove_rombank_w
0x0020-0x00234Writeddenlovr_palette_base_w
0x0024-0x00274Writeddenlovr_palette_mask_w
0x0028-0x002B4Writeddenlovr_transparency_pen_w
0x002C-0x002F4Writeddenlovr_transparency_mask_w
0x00341Writeddenlovr_bgcolor_w
0x00351Writeddenlovr_priority_w
0x00361Writeddenlovr_layer_enable_w
0x00381Read NOP(// ? ack or watchdog)
0x0040-0x00412Writemjflove_blitter_w
0x00431Readrongrong_gfxrom_r
0x0050-0x005F16Device Read/Writertc, msm6242_device, read, write
0x00601Readhanakanz_rand_r
0x00701Writequizchq_oki_bank_w
0x00801RAM
0x00901Device Read/Writeoki, okim6295_device, read, write
0x0092-0x00932Device Writeym2413, ym2413_device, write
0x0094-0x00952Device Writeaysnd, ay8910_device, address_data_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:blitter
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288700j-3.13bCRC(d7289433)
0x80000-0xFFFFF524288700j-4.14bCRC(881e1f91)
0x100000-0x17FFFF524288700j-5.13dCRC(5a6bb6a9)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288700j-2.5cCRC(188bae18)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072700j-1.1cCRC(09b7a9b2) (Fluke: 576E)
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