Jump to content

Photo

ROM PAL to NTSC conversion needed or...?


6 replies to this topic

#1 Silntdoogood OFFLINE  

Silntdoogood

    Chopper Commander

  • 124 posts
  • Location:Earth

Posted Thu Nov 10, 2011 6:02 PM

I'm new to the home-brew editing/writing type people. I've been playing them for years, just not working on them. I would presume these are problems that have been confronted at some point, so linking to forums threads are acceptable answers.

I dug up a home-brew ROM that is only available in a PAL format. I've been running it in Stella, and it is no big problem. Large margins on the top and left of the screen, but no walking or anything. I am thinking of putting a cart together for this, to use on a real system. It's an NTSC system. I am not expecting this to work as well in this setting. Is there any easy conversion process to get the ROM from PAL to NTSC, or does it need re-coded from scratch?

#2 GroovyBee OFFLINE  

GroovyBee

    7800 Developer

  • 7,607 posts
  • Busy bee!
  • Location:North, England

Posted Thu Nov 10, 2011 6:05 PM

If its homebrew you might want to try and track down the original author before you start hacking it and making a cart out of it.

#3 Phredreeke OFFLINE  

Phredreeke

    Chopper Commander

  • 172 posts

Posted Thu Nov 10, 2011 6:23 PM

IIRC PAL to NTSC is harder than the other way around, as PAL has a longer VBLANK period.

There's no region lockout though so a PAL game will work on an NTSC 2600, but chances are your TV wont be able to sync to it, and if it does the colors will be wrong.

#4 Silntdoogood OFFLINE  

Silntdoogood

    Chopper Commander

  • Topic Starter
  • 124 posts
  • Location:Earth

Posted Thu Nov 10, 2011 7:31 PM

If its homebrew you might want to try and track down the original author before you start hacking it and making a cart out of it.


I am actively trying to track down the original author, in hopes there's already an NTSC build out there.

#5 GroovyBee OFFLINE  

GroovyBee

    7800 Developer

  • 7,607 posts
  • Busy bee!
  • Location:North, England

Posted Thu Nov 10, 2011 7:42 PM

I am actively trying to track down the original author, in hopes there's already an NTSC build out there.


It might help if you let people know what the game is called or provide some screenshots of it, if you don't know.

#6 Silntdoogood OFFLINE  

Silntdoogood

    Chopper Commander

  • Topic Starter
  • 124 posts
  • Location:Earth

Posted Fri Nov 11, 2011 2:53 PM


I am actively trying to track down the original author, in hopes there's already an NTSC build out there.


It might help if you let people know what the game is called or provide some screenshots of it, if you don't know.


Well, now I feel like an idiot. I was running it on the Puppy Arcade, and running that from a flash-drive install. I went to grab a screencap, and the flash-drive is now corrupt or in need of formatting.If I can recover the ROM, I'll post a screenie. I knew using a flash-drive as a primary shortened their life...but I didn't think I'd loose it this quickly. Hopefully it's something easy to fix...or I have a backup of the ROM somewhere. :(

#7 CPUWIZ OFFLINE  

CPUWIZ

    Rarity 11

  • 27,730 posts
  • Cartridge Recycler
  • Location:SoCal

Posted Fri Nov 11, 2011 3:19 PM

Flash drive corruption or not, what is the name of the game?




0 user(s) are browsing this forum

0 members, 0 guests, 0 anonymous users