[Drakon]

This existing patch here breaks when you clear a stage or die.  So you can't get past more than 1 stage without the graphic tiles pooping out:



http://www.romhacking.net/hacks/145/

I fixed it:

http://www.mediafire.com/?a9a49q9882iko5p

I cleared the whole game start to finish.  I don't like the game enough to bother getting it to run on real hardware (it would be too much work to bother with).  But hey, enjoy this fixed patch atleast.

[Spikeman]

I can't find anywhere in ram where it keeps track of the current rombank which is a huge problem with getting it to run on real hardware.

It stores this at 0xA24E

Might be some more useful info here: http://tasvideos.org/forum/viewtopic.php?t=2046&start=140

[Drakon]

As I feared....0a24e doesn't always update.  Anyway I just reprogrammed the rom so it runs on a mbc5 memory bank controller.

[Spikeman]

As far as I know the only times it doesn't update are during the vblank handler. And in normal play it the Vblank handler shouldn't occur again within the original handler. However, the unmodified game already has a glitch were if there are too many objects on the screen the vblank handler can occur again inside a vblank handler call, and cause a crash. So, I can forsee issues with adding a waitloop if the code takes too long in the vblank handler. We may have to do some modification of the original code to fix that bug.

[Drakon]

I can't do anything with this game until some of the code in bank 0 is relocated, that sort of job is above me so I'll have to wait for you to get some free time haha.  I managed to convert the original marioland 2 rom to run as a mbc5 game.  Once we get space for bankswitching I'll convert the colour rom for mbc5 which will require replacing a lot of mbc1 bankswitches.  And then....hopefully it'll run on the real thing.

[tigrou]

dont know if it will help you but have a look here : http://magicstone.de/rhwiki/article/Super_Mario_Land_2

[Drakon]

I cleared the game in full colour.  It looks beautiful but I don't really find it fun enough to bother getting it running on real hardware.  Oh well atleast I made the existing patch actually playable.

[MathUser2929]

What you've done should at least be uploaded to RHDN. Either as a addendum or as a new version of the existing hack.

[Drakon]

I don't know how to submit stuff.  Here's the zip if you want to haha:

http://www.mediafire.com/?a9a49q9882iko5p

Metroid 2 is ready to go as well:

http://www.mediafire.com/?0h2vy4wbh8ah81b

[Da_GPer]

I noticed that Metroid 2 gives a red background instead of black and Mario Land 2 has all weird colors and messed up graphics, no matter if you used the 1.0, 1.1, or 1.2 ROM.

[MathUser2929]

I got the same problem on SML2 also.

[Drakon]

I just downloaded and used the patch it works fine for me.  Not my fault they don't let me dicuss or post here either roms or where to get them.

[B.B.Link]

I just downloaded and used the patch it works fine for me.  Not my fault they don't let me dicuss or post here either roms or where to get them.

But you can at least tell us either the full rom name (ex. "Super Mario Land 2 - 6 Golden Coins (UE) (V1.0) [!].gb") or if it needs a header or not.

[Drakon]

All gameboy roms have a header that's how the gameboy tells if it's gb or gbc.

My rom is "Super Mario Land 2 - 6 Golden Coins (USA, Europe).gb"

[Da_GPer]

All gameboy roms have a header that's how the gameboy tells if it's gb or gbc.

My rom is "Super Mario Land 2 - 6 Golden Coins (USA, Europe).gb"

I searched for that exact file, and after downloading and patching it, it gave the same messed up colors and graphics that the others did.

[Hiei-]

A bit off-topic but a colored version of Zelda would be nice.

I know the DX version is in color but it don't use the full capacity of colors of the GameBoy Color to be retrocompatible with the previous systems so it don't use as much colors that the GameBoy Boy Color games that aren't retrocompatible.

[Dwedit]

Zelda DX definitely used the full palette of colors available, it just didn't use the second bank of VRAM.  You also get different tile graphics depending on whether it is played on a GBC or an original Game Boy.

[KingMike]

It must've used the extra bank in the Color Dungeon, though.
I've seen someone force their way in in monochrome mode in a video. Glitched tiles everywhere, as I remember.

[Drakon]

I searched for that exact file, and after downloading and patching it, it gave the same messed up colors and graphics that the others did.

What can I say.  I re-downloaded the rom.  Downloaded my patch.  Applied it, loaded it into bgb, it runs fine.

[caninis]

The problem is not a rom-patching issue, it's an emulator issue

Startup bgb and go into options, & choose exceptions
Select "Troubleshoot broken PD roms", and unselect all options relating to emulate as in reality

The patch does not work on a real gameboy, so the emulator must be designed to function accordingly