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| Snes ROM help
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Duffy
msx friend
Berichten: 1 |  Geplaatst: 27 December 2006, 20:40 |
I have a prototype game for SNES that has four EPROMs on the PCB board. Since I could remove the EPROMs, I dumped the data with an EPROM programmer. Now, I have four splitted files because I had to dump each EPROM, so I wonder how you assemble the .bin-files into a single .rom file? Also, when I open each of the .bin files in Tile Layer Pro, I can see that the prototype version lacks a 16 squares long string of data in the beginning of every EPROM's data. It's hard to explain, but I first thought that this maybe could be some sort of header, or missing data that (in the final version) is there to compose the ROM into one. Besides that, all the data seems to be byte-for-byte identical. Hope anyone understands what I'm trying to say.. Thankful for any help!
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Sonic_aka_T
msx guru
Berichten: 2261 | Geplaatst: 27 December 2006, 20:45 |
I don't know a whole lot about the SNES, but I suppose you could concat the whole lot into one big file. (Or maybe use something like XVI32) What I wouldn't know is what a SNES header looks like and how SNES mappers behave. Perhaps it's better if you ask this on a SNES forum.  |
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SaebaMSX
msx freak
Berichten: 245 | Geplaatst: 27 December 2006, 21:07 |
Afaik every SNES copier of the old days added their own header, so I suppose that yours is free of them (complete RAW data). I don't know if these files contain other headers like in MSX (starting with AB and so on), I would need to check it.
Anyway, long time I'm not using my SWCDX2...
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Randam
msx lover
Berichten: 105 | Geplaatst: 28 December 2006, 23:45 |
A program called snestool can split any romfile in multiple files or the other way around. About using a program like tile layer for looking at the contents: probably the way to go if you want to see/ edit some gfx data 'quick and dirty', but not for headers. Try something like ultraedit or whatever tickles your fancy.
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Unicorn
msx lover
Berichten: 72 | Geplaatst: 29 December 2006, 00:05 |
@Randam
Interesting… Does a similar tool exist for the Megadrive/Genesis? For me it was the next best thing around with a Z80 in it!  |
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Unicorn
msx lover
Berichten: 72 | Geplaatst: 29 December 2006, 01:15 |
Never mind, I found it and it works like a charm!  |
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DamageX
msx freak
Berichten: 162 | Geplaatst: 29 December 2006, 03:39 |
What is the size of the ROMs? IIRC, SNES cartridges start at $8000 in the address space, so if you look around $7FFE in one of the ROMs you should spot the reset vector.
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snout
msx legend
Berichten: 4991 | Geplaatst: 29 December 2006, 12:32 |
{moved to 'related'}
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dhau
msx master
Berichten: 1047 | Geplaatst: 03 Januari 2007, 08:45 |
If you or any of your friends have a copier, such as Game Doctor SF7, it's much easier to dump your proto using it.
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