everdrive for SMS and GameGear

Just to let everybody knows I ordered mine ) Both, SMS and GG.

In 2 months more or less I should receive it (yes the brazil custom sucks).

 

Here is a hardware hack you can do, I found this by searching over an hour on the net. Unfortunately the source code link no longer works for the microcontroller.
http://members.iinet.net.au/~stinkyfist/reviletim/ggtv/ggtv.htm

Maybe KRIKzz can look at what chris mcovell from the previous link wrote about adapting GG games to the mega drive with software ( http://www.chrismcovell.com/segahacking/gg2sms.html ). I personally would pay extra for this "Special" os upgrade:

1. [SIZE=-1]Intercept the GG game's reading of the GG "Start" button and remap it to a button or combination of buttons on the Master System.[/SIZE]
2. [SIZE=-1]Modify the palette-writing routines so that they write at most 32 bytes (the size of the SMS palette), rather than 64, to the palette RAM. Palette fading, cycling, and other subroutines will also have to be modified.[/SIZE]
3. [SIZE=-1]Remap the GG's 12-bit palette down to the SMS' 6-bit palette. Adjustments will probably have to be made to make it look good.[/SIZE]
4. [SIZE=-1]Insert or reroute code so that the Pause interrupt vector at $0066 will deal with the Pause button on the SMS. Many GG games have code that just barrels past $0066 because this sort of interrupt doesn't happen often on the GG.[/SIZE]
5. [SIZE=-1]Edit out all writes/reads to the GG ports $00-$06. Writing to these ports can crash the system![/SIZE]
6. [SIZE=-1]...and undoubtedly something I've forgotten...[/SIZE]

[SIZE=-1]As you can see, this is not a task for absolute beginners. It involves a bit of hacking, and a bit of Z-80 programming and trickery. If anybody wants to try out this type of hack, you can see what you have to do. Good luck.[/SIZE]

 

yeah, I've saw it in the past when I was searching for the hacks but.. it's too much knowledge needed at least to me.

Hope someone, someday converted the whole set of GG to SMS.

 

You cannot do that by "OS upgrade", only way is to hack every game and do those modifications. This can't be done automatically as every game programs are different.

 

Are compatible the Light Phaser with the SMS Everdrive?
I try load SMS Light Phaser compatible games in my MD Everdrive, but don`t work. Detect the trigger but don`t sincronyze with screen..

Best regards

 

It works fine here.

The 3d glasses also work.

 

3D works with the Power Base Converter of course, not simply a Genesis/MD.

 

Are you using an LCD TV? Most light guns work only on CRT screens.

 

100Hz CRTs can also have issues.

 

Question, does anyone know of a tool that can patch SMS and GG ROM's directly with PAR (Pro Action Replay) codes? I have the "CCCGP" tool but both the SegaMasterSystem and GameGear are not supported. I'd buy a PAR but they are nearly impossible to find at any price.

I've also tried GGConv to swap the PAR codes to GG codes and then tried patching the ROM using ucon64 but without success as the GGConv application put out triple pairs yet

Trying to make a ROM permanently start on level 9 was a follows:
PAR=00C0-2309 -> GGConv -> 090-C0F-6E6
"ucon64 --sms --gg=090-C0F-6E6 alex.sms"

But the game starts on level 1 as it always has whereas loading the PAR code into fusion starts on level 9 as expected.

 

What's the current status of SG-1000 support on the Game Gear? Is it possible to set up SG-1000 games with the correct palette, as seen on other flashcarts (albeit with a fair amount of hassle)? Are games that use additional RAM supported, i.e. The Castle?

I'm getting my Game Gear recapped soon, so am starting to think about pulling the trigger on my third EverDrive (I have the Genesis and SNES models). Being able to play SG-1000 games with the correct palette on real hardware would be a big plus.

 

i don't have a cart right now for test, and i can't remember if i tested before, but if os will recognize sg1000 rom as sms rom and gg vdp has sg1000 support, then will work.

 

The GG VDP does have TMS9918 support, but I think it may need a palette setup command to display correctly. The thing I linked above (see here) alludes to the issue, but I'm not sure if any of that is specific to the Tototek stuff.

And: thanks for the super-quick reply!

 

everdrive gg not need some physical switch like this, because cart can control those line, and do all work automatically. switch need only if you will be use sms everdrive and master gear converter

 

Hmmm, OK, but how does that relate to the CRAM palette setup issues described (for example) here? Have those already been taken care of by the EverDrive-GG BIOS? It sounds like all the colors will be too dark to see if the defaults are left in place.

I apologize if the question is obtuse (dumb) or if I'm not understanding something.

 

well, i will check how sg1000 works on gg, and will try to fix palette problem if possible

 

Hope this is the appropriate thread.

I've updated to the latest OS for the Everdrive GG, but I can't seem to load Golden Axe Warrior (SMS). Is the game not compatible?

thanks.

 

http://www.youtube.com/watch?v=tE4dcU4-w-4

 

Hey, KRIKzz, any word on this? The EverDrive-GG is on my wishlist since my recapped/modded Game Gear is coming back soon, but knowing that the SG-1000 palette is all set would be a big help. ;-)

 

in lastest os i implemented palette init for sg1000, now sg1000 games works fine on gg