How to fix the region bug?

I looking the sonic 1 (original) and various hacks of this game, and if this plays in EUR region the music is too slow because the sound driver is processed by the 68k.


How to fix this speeds?

 

This thread is pointless.


After "google searching" and doing my "research", I have came to a conclusion that the sound driver has to be written on the Z80, or better yet, programmed in such a way that the music plays at a faster tempo in EUR region.


And that took me 5 minutes to find out.

 

It plays at a slower tempo in EUR regions actually.


But still to the point, whats stopping you playing the game in USA/JAP mode? Especially since most hacks nowdays are based off their American variations.

 

It's actually not even a bug, it's just a different way how the different regions work. If you absolutley want to "fix" it, you could find out the region and slowing down the sound driver a bit (not sure if this is possible or a good idea at all, though).

 

If cannot fix this, how to lock the EUR region on my game?

 

The region is being set by the emulator, not the game. There's no way to lock it or something.

 

Reread my post again please, if you read it carefully, you'll see that I was "suggesting" to program it to "increase" the tempo value in EUR to make the tempo play "Faster", so that it would appear to play at the same speed as NTSC. I did not say that it already "does" play at a faster tempo =P

 

Some games, if plays in EUR region, shows the message "THIS GAME IS PRODUCED ONLY FOR NTSC GENESIS/MEGADRIVE SYSTEMS"

 

I don't know if I'm right about this but doesnt that message only appears on real hardware??

 

Some games, that is. You don't even have region lock on Sonic 1-3.

 

Ahh, sorry about that.


I failed once again.

 

Ok, I need to increase the tempo if is the EUR region, but how to make this check? =P

 

We know, but why? No one plays in PAL on GENS/Kega.

 

Even though I always play on NTSC I still don't think it's a problem that the people who play on PAL should have a problem playing a game.

 

I never said i had a problem with PAL. I was just asking why HCKTROX wanted to speed up the function despite being underused.

 

Oh c'mon


How to make this check? i want to make my game as much bug-free as possible =P

 

PAL speed isn't a bug.

 

You check the Hardware's I/O ports for the region code.


I wont tell you how to do this in MC68 assembly, because you'll have lots more fun researching this yourself =)

To say it's a bug is similar to saying that the spike behaviour in Sonic 1 is a bug, although the later Sonic games were corrected for speed on the PAL systems, it is still unknown if it is infact a bug, or not. On the plus side to using PAL, you have overclocking which means the processor can perform more operations without lag, so you could say that NTSC has a bug where it lags with less operations.


Which is why it's best not to bring it up as a "bug" in the first place. So, not a bug, just the processor using less electricity.

 

Ok. I now changed the regions, when if the emulator is in "auto-detect" mode, uses the japan version