It is currently Sat Nov 18, 2017 5:21 am

All times are UTC - 7 hours





Post new topic Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Thu May 18, 2017 12:04 pm 
Offline
User avatar

Joined: Sun Mar 19, 2006 3:06 am
Posts: 584
Location: Gothenburg/Sweden
I wanted to see if it was possible getting VS Balloon Fight to play on a standard NES (at least in 1-player mode). Here's how far I've come:
* The game "boots". Press START to insert coins and SELECT to start the game
* Currently converted to MMC1, horizontal mirroring.
* Palette is currently not correctly patched, w.i.p.
However, I can't get control of the player. I've patched all $4016 & $4017 writes and adapted them for the NES but can't still get the player to move, and I've tried alot of things.
Some kind of guess is that it might be IRQ-related since there's no second CPU to trigger these, but it's a wild guess. Or it might be some other obvious bug I currently can't see. :)
So, if there's any skilled ROM-hackers here, feel free to check this out. If you've got any ideas about how to get things working, feel free to share ideas, credit will be given. :)

I've attached the IPS below, use it to patch a ROM with CRC32: ff89eddd


Attachments:
File comment: Patch to make VS Balloon Fight NES-compatible
vsbf.ips [444 Bytes]
Downloaded 62 times

_________________
http://nes.goondocks.se/
Top
 Profile  
 
PostPosted: Mon Aug 14, 2017 1:02 pm 
Offline
User avatar

Joined: Tue Feb 07, 2017 8:13 pm
Posts: 2
This would be awesome :D


Top
 Profile  
 
PostPosted: Mon Sep 25, 2017 2:39 pm 
Offline

Joined: Mon Jul 12, 2010 1:13 am
Posts: 28
Apologies for the necrobump, but I think this would be pretty great to have on real NES hardware, considering it's upcoming Switch release and the history of it being developed by a different team than Satoru Iwata's.


Top
 Profile  
 
PostPosted: Tue Sep 26, 2017 9:15 am 
Offline
User avatar

Joined: Sun Mar 19, 2006 3:06 am
Posts: 584
Location: Gothenburg/Sweden
I've put this project on hold (temporary?) but it would be nice with some help.. :)

_________________
http://nes.goondocks.se/


Top
 Profile  
 
PostPosted: Tue Sep 26, 2017 9:43 am 
Offline

Joined: Mon Jul 12, 2010 1:13 am
Posts: 28
VS Mach Rider would be pretty cool as well, considering it has a few extras over the NES original :)


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 4:37 am 
Offline
User avatar

Joined: Fri May 21, 2010 4:10 pm
Posts: 279
Any update on this oRBIT? This would be awesome to have working. Do you think the control issue is due to the player 1 and player 2 cpu not being able to communicate? Maybe find where that is and disable it?

I hope you do not give up on this! Love your work! :beer: :wink:


Top
 Profile  
 
PostPosted: Sun Oct 29, 2017 11:39 am 
Offline
User avatar

Joined: Sun Mar 19, 2006 3:06 am
Posts: 584
Location: Gothenburg/Sweden
Haven't checked it out for awhile.. I suspect there's something to do with that there's only one CPU but I am not sure..

_________________
http://nes.goondocks.se/


Top
 Profile  
 
PostPosted: Thu Nov 09, 2017 4:48 pm 
Offline
User avatar

Joined: Fri May 21, 2010 4:10 pm
Posts: 279
I have an idea but it's pretty stupid/maybe. I wonder if you could somehow make the game think the second player is connected and doing exactly what the first is doing so the 2 cpu's communicate. ( IIRC that is how the game worked) Sorry if that does not make sense, but i think you get the idea.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 7 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group