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.
Photo Finish (Jaleco / Casio, 1991)
Memory Area:lasso_audio_map
Address RangeLengthFunctionDescription
0x0000-0x01FF512RAM
0x5000-0x7FFF12288ROM
0xB0001Write Only, Sharedchip_data
0xB0011Writesound_select_w
0xB0041Readsound_status_r
0xB0051Device Readsoundlatch, generic_latch_8_device, read
0xF000-0xFFFF4096ROM, Regionaudiocpu, 0x7000
Memory Area:lasso_main_map
Address RangeLengthFunctionDescription
0x0000-0x03FF1024RAM
0x0400-0x07FF1024RAM Write, Sharedlasso_videoram_w, videoram
0x0800-0x0BFF1024RAM Write, Sharedlasso_colorram_w, colorram
0x0C00-0x0C7F128RAM, Sharedspriteram
0x1000-0x17FF2048RAM, Sharedshare1
0x18001Writesound_command_w
0x18011Write Only, Sharedback_color
0x18021Writelasso_video_control_w
0x18041Read Port1804
0x18051Read Port1805
0x18061Read Port, Write NOP1806, (/* game uses 'lsr' to read port */)
0x18071Read Port1807
0x8000-0xBFFF16384Mirror, ROM0x4000,
Memory Area:wwjgtin_audio_map
Address RangeLengthFunctionDescription
0x0000-0x01FF512RAM
0x4000-0x7FFF16384Mirror, ROM0x8000,
0xB0001Write Only, Sharedchip_data
0xB0011Writesound_select_w
0xB0031Device Writedac, dac_byte_interface, write
0xB0041Readsound_status_r
0xB0051Device Readsoundlatch, generic_latch_8_device, read
Memory Area:wwjgtin_main_map
Address RangeLengthFunctionDescription
0x0000-0x07FF2048RAM
0x0800-0x0BFF1024RAM Write, Sharedlasso_videoram_w, videoram
0x0C00-0x0FFF1024RAM Write, Sharedlasso_colorram_w, colorram
0x1000-0x10FF256RAM, Sharedspriteram
0x18001Writesound_command_w
0x18011Write Only, Sharedback_color
0x18021Writewwjgtin_video_control_w
0x18041Read Port1804
0x18051Read Port1805
0x18061Read Port1806
0x18071Read Port1807
0x1C00-0x1C023Write Only, Sharedlast_colors
0x1C04-0x1C074Write Only, Sharedtrack_scroll
0x4000-0xBFFF32768ROM
0xC000-0xFFFF16384ROM, Regionmaincpu, 0x8000
 

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
0x4000-0x7FFF16384ic59.binCRC(2ecb4d98) (Fluke: FD66)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048ic81.binCRC(0f170253) (Fluke: E344)
0x4000-0x47FF2048ic82.binCRC(c4cadee9) (Fluke: 693A)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF81923-ic47.binCRC(40594c59) (Fluke: 7EB1)
0x2000-0x3FFF81924-ic46.binCRC(d1921348) (Fluke: 915B)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x4000-0x7FFF16384ic2.binCRC(4d960b54) (Fluke: 365C)
0x8000-0xBFFF16384ic6.binCRC(a4ad21dc) (Fluke: 25A5)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F322.bprCRC(79adda5d) (Fluke: 5376)
0x0020-0x003F321.bprCRC(c1a93cc8) (Fluke: E444)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF81922-ic48.binCRC(a4a7df77) (Fluke: 01E6)
0x2000-0x3FFF81921-ic49.binCRC(e480fbba) (Fluke: CAA4)
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3