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.
Trail Blazer (Coinmaster, 1987)
Memory Area:coinmstr_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0xC000-0xDFFF8192RAM
0xE000-0xE7FF2048RAM Write, Sharedquizmstr_bg_w, videoram
0xE800-0xEFFF2048RAM Write, Sharedquizmstr_attr1_w, attr_ram1
0xF000-0xF7FF2048RAM Write, Sharedquizmstr_attr2_w, attr_ram2
0xF800-0xFFFF2048RAM Write, Sharedquizmstr_attr3_w, attr_ram3
Memory Area:trailblz_io_map
Address RangeLengthFunctionDescription
0x0000-0x00034Writequestion_w
0x00001Readquestion_r
0x00401Device Writecrtc, mc6845_device, address_w
0x00411Device Writecrtc, mc6845_device, register_w
0x0048-0x00492Device Writeaysnd, ay8910_device, address_data_w
0x00491Device Readaysnd, ay8910_device, data_r
0x0050-0x00534Device Read/Writepia0, pia6821_device, read, write (//?)
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
0x0060-0x00634Device Read/Writepia1, pia6821_device, read, write
0x0001Start 1Active Low
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008ContActive Low
0x0010PassActive Low
0x0020SelActive Low
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x0070-0x00734Device Read/Writepia2, pia6821_device, read, write
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Coin 3Active Low
0x0008Coin 4Active Low
0x0010OffActive High
0x0000OnActive High
0x0020Service 1Active Low
0x0040OffActive High
0x0000OnActive High
0x00C1-0x00C33Write NOP
 

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
0x0000-0x1FFF81921-2.45CRC(b4a807b1) (Fluke: 9EA1)
0x2000-0x3FFF81922-2.41CRC(756dd230) (Fluke: E101)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF163841-4.09CRC(7c34749c) (Fluke: BD7E)
0x4000-0x7FFF163842-4.06CRC(81a9809b) (Fluke: 518C)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0x9FFFF655360questions.bin
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3