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Author Topic: Does anyone have an English language patch for Seiken Densetsu 2?  (Read 2437 times)

armtheangels

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So, in short, I'm trying to use my Retron 5 to play Secret of Mana in English with my Japanese SFC copy. Obviously there is the enhanced english patch available online, but it is intended for the US rom. I've tried everything I can to convert it to the JP rom, or run the English rom as an IPS patch intended for the JP rom but have been wholly unsuccessful. I'm not the most tech savvy, so I was hoping that someone might have some insight into an IPS patch already in existence, or another process to make one. Thanks in advance!

BlackDog61

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Re: Does anyone have an English language patch for Seiken Densetsu 2?
« Reply #1 on: January 23, 2016, 04:39:31 pm »
The following is just my opinion.
It's most likely not very easy to port a patch from one version of a ROM to another. You might get lucky, but you more likely could require ASM knowledge etc.
I wouldn't expect anyone to take this up, seeing as how there's another version already availablein English. But you can try to do it yourself, with a lot of time and proper motivation.

marioxb

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Re: Does anyone have an English language patch for Seiken Densetsu 2?
« Reply #2 on: January 25, 2016, 08:57:33 pm »
You can probably take both a Japanese and English rom and create an ips with the differences.

BlackDog61

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Re: Does anyone have an English language patch for Seiken Densetsu 2?
« Reply #3 on: January 27, 2016, 04:06:17 pm »
You can probably take both a Japanese and English rom and create an ips with the differences.
I fail to understand how that helps. Could you clarify?

To port a patch from a version of the ROM to another one, you need to:
- identify the list of changes from the patch. The patch file itself should give you that.
- identify which structures in the old ROM are modified by the patch
- look for the same logical structures in the new ROM (which can range from simple, stupid search to complex header identification and offsets calculations)
- hope that you can apply the same change, and if it doesn't work then try to understand the original logic and re-apply the logic (not the patch) to create a new change.

The diff between the E and J roms is only a partial view of all this.

Mauron

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Re: Does anyone have an English language patch for Seiken Densetsu 2?
« Reply #4 on: January 27, 2016, 09:38:41 pm »
It's not about porting the patch over, it's about making a patch between two different ROMs. You use the Japanese ROM as a base, and the English ROM (With any patches applied) as the modified ROM. The resulting IPS will contain ~90% of the ROM, but will work for the situation described here.
Mauron wuz here.

BlackDog61

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Re: Does anyone have an English language patch for Seiken Densetsu 2?
« Reply #5 on: January 28, 2016, 05:50:22 pm »
Oh. OK.
But why not take the English ROM directly then?
(I'll go sleep. ;))

tc

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Re: Does anyone have an English language patch for Seiken Densetsu 2?
« Reply #6 on: January 28, 2016, 05:59:44 pm »
Oh. OK.
But why not take the English ROM directly then?
(I'll go sleep. ;))

As far as I know Retron 5 doesn't support directly loading ROMs.
One needs to hack, patch, use a flash cart / repro, or other workarounds.

Creating a patch between the desired English ROM and a Japanese ROM is trivial to do.

azidahaka

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Re: Does anyone have an English language patch for Seiken Densetsu 2?
« Reply #7 on: January 29, 2016, 04:07:36 pm »
As far as I know Retron 5 doesn't support directly loading ROMs.
One needs to hack, patch, use a flash cart / repro, or other workarounds.

Creating a patch between the desired English ROM and a Japanese ROM is trivial to do.

There are workarounds to the rom issue, i read about them on the net so you can load anything.