Search

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.
Gun Dealer (Dooyong (Tecmo license), 1990)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank1
0xC0001Read PortDSW0
0xC0011Read PortDSW1
0xC0041Read PortIN0
0xC0051Read PortIN1
0xC0061Read PortIN2
0xC010-0xC0134Writeyamyam_fg_scroll_w (/* Yam Yam only */)
0xC0141Writegundealr_flipscreen_w
0xC0161Writeyamyam_bankswitch_w
0xC020-0xC0234Writegundealr_fg_scroll_w (/* Gun Dealer only */)
0xC400-0xC7FF1024RAM Write, Sharedgundealr_paletteram_w, paletteram
0xC800-0xCFFF2048RAM Write, Sharedgundealr_bg_videoram_w, bg_videoram
0xD000-0xDFFF4096RAM Write, Sharedgundealr_fg_videoram_w, fg_videoram
0xE000-0xFFFF8192RAM, Sharedrambase
Memory Area:main_portmap
Address RangeLengthFunctionDescription
0x0000-0x00012Device Read/Writeymsnd, ym2203_device, read, write
 

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:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF655363.6pCRC(01f99de2) (Fluke: 5894)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF1310722.6bCRC(508ed0d0) (Fluke: 66BB)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF655361.3jCRC(1d951292) (Fluke: D623)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF25682s135.7l
0x0100-0x01FF25682s129.7i
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3