How to split file for UNROM repro?

A place that you can discuss reproduction of classic titles or "licensed-for-reproduction" homebrew for personal use.

Moderators: B00daW, Moderators

Forum rules
1. NO BLATANT PIRACY. This includes reproducing homebrew less than 10 years old, with the exception of free software.
2. No advertising your reproductions, with the exception of free software.
3. Be nice. See RFC 1855 if you aren't sure what this means.
Post Reply
Icitte
Posts: 7
Joined: Mon Dec 15, 2014 4:39 pm

How to split file for UNROM repro?

Post by Icitte » Tue Dec 16, 2014 5:55 pm

I am planning on a repro of duck tales 2 with wayne gretzky donnor card

Actually NEScartDB tell me that there is a ROM for the PRG but the CHR is SRAM

So, I think that I only need to change the PRG Chip but, when I split my ROM with NES mapper program they normally do 2 files

will the PRG file work for this kind of repro?

I am sorry for the questions but I am a beginner and since english is not my language I have some difficulty to understand everthin i am ready...

thanks

User avatar
tokumaru
Posts: 11520
Joined: Sat Feb 12, 2005 9:43 pm
Location: Rio de Janeiro - Brazil

Re: How to split file for UNROM repro?

Post by tokumaru » Tue Dec 16, 2014 7:49 pm

Yes, for any game that uses CHR-RAM you only need to replace the PRG-ROM chip. In this case, iNES ROM files are just the PRG-ROM data preceded by the 16-byte header, there's no CHR section at all.

Icitte
Posts: 7
Joined: Mon Dec 15, 2014 4:39 pm

Re: How to split file for UNROM repro?

Post by Icitte » Sat Dec 20, 2014 9:21 am

great tanx

User avatar
Snacks
Posts: 34
Joined: Mon Feb 04, 2013 10:47 pm
Location: NTDEC

Re: How to split file for UNROM repro?

Post by Snacks » Mon Nov 30, 2015 8:34 am

for unrom games, you just remove the header and done ;D
The 100 Mega Shock

wyndcrosser
Posts: 42
Joined: Mon Jul 30, 2012 1:44 pm

Re: How to split file for UNROM repro?

Post by wyndcrosser » Mon Nov 30, 2015 7:13 pm

So you REALLY shouldn't be making a repro of an expensive game. That's sketchy as balls, with a capital 'B'.

User avatar
rainwarrior
Posts: 7718
Joined: Sun Jan 22, 2012 12:03 pm
Location: Canada
Contact:

Re: How to split file for UNROM repro?

Post by rainwarrior » Mon Nov 30, 2015 7:49 pm

wyndcrosser wrote:So you REALLY shouldn't be making a repro of an expensive game. That's sketchy as balls, with a capital 'B'.
So... you only make repros of cheap games? Why?

Gered
Posts: 9
Joined: Mon Mar 16, 2015 11:03 am

Re: How to split file for UNROM repro?

Post by Gered » Tue Dec 01, 2015 9:15 am

wyndcrosser wrote:So you REALLY shouldn't be making a repro of an expensive game. That's sketchy as balls, with a capital 'B'.
There's absolutely nothing wrong with it, unless he turns around one day and decides to sell it without expressly indicating to potential buyers that is a reproduction and not an original.

User avatar
getafixx
Posts: 362
Joined: Tue Dec 04, 2012 3:28 pm
Location: Canada

Re: How to split file for UNROM repro?

Post by getafixx » Wed Dec 02, 2015 10:09 am

Still find it hard to believe that Ducktales 2 is going for $200-$400 on eBay right now... so ridiculous. Bunch of artificially inflated hype-train nonsense.

Ice Man
Posts: 432
Joined: Fri Jul 04, 2014 2:34 pm

Re: How to split file for UNROM repro?

Post by Ice Man » Thu Dec 03, 2015 2:02 am

What ebay are you at? o_O I bought mine for $40.

muckyfingers
Posts: 41
Joined: Sun Jan 06, 2013 9:56 pm

Re: How to split file for UNROM repro?

Post by muckyfingers » Thu Dec 03, 2015 5:53 am

Ice Man wrote:What ebay are you at? o_O I bought mine for $40.
Complete ones go for the crazy money, loose ones are expensive as well.

http://www.ebay.com/itm/Disneys-DuckTal ... Sw5VFWOReq

Ice Man
Posts: 432
Joined: Fri Jul 04, 2014 2:34 pm

Re: How to split file for UNROM repro?

Post by Ice Man » Thu Dec 03, 2015 1:33 pm

Wow, that's crazy. :(

Post Reply