Hi guys. I recently found a rom that had an unknown mapper and is not running anywhere. I know it's HiROM but I don't know how to deal with the basics of assembly. I would just like to set the correct address so that the rom has a mapper. This is any version of the Fievel game.
Sorry for my bad english...
Mapping unknown
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Re: Mapping unknown
There's nothing unusual about that game. HiROM 4 Mbit (512 kByte). No other chips. No SRAM.
There are 2 versions of the game.
An American Tail : Fievel Goes West [USA]
An American Tail : Fievel Goes West [Europe] PAL
perhaps the region is the problem? PAL vs NTSC
There are 2 versions of the game.
An American Tail : Fievel Goes West [USA]
An American Tail : Fievel Goes West [Europe] PAL
perhaps the region is the problem? PAL vs NTSC
nesdoug.com -- blog/tutorial on programming for the NES
Re: Mapping unknown
Yes, nothing unusual. When you use ROM Header it will return this in Header option.dougeff wrote: ↑Fri Nov 11, 2022 4:23 pm There's nothing unusual about that game. HiROM 4 Mbit (512 kByte). No other chips. No SRAM.
There are 2 versions of the game.
An American Tail : Fievel Goes West [USA]
An American Tail : Fievel Goes West [Europe] PAL
perhaps the region is the problem? PAL vs NTSC
Last edited by alex18sak on Sat Nov 12, 2022 1:22 pm, edited 1 time in total.
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Re: Mapping unknown
that just must be a bad ROM, or it has a header that it is not detecting? What is the file size?
Using the GoodSNES versions I get
so just bog standard 1MB HiROM with 1K SRAM.
Using the GoodSNES versions I get
Code: Select all
File: American Tail, An - Fievel Goes West (E) [!].sfc
Game: Fievel Goes West PAL
Game code: ����
Type: HiROM
Map Mode: $21
Rom Type: $00
File size: 1024 KB
ROM size: 1024 KB
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File: American Tail, An - Fievel Goes West (U)_.sfc
Game: Fievel Goes West USA
Game code: ����
Type: HiROM
Map Mode: $21
Rom Type: $00
File size: 1024 KB
ROM size: 1024 KB
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