Working copy of Galaxian and\or Space Invaders?

[nintendo2600]

Hey,

All the galaxians I find have a bad header, same goes for space invaders. Can anyone point me in the general direction to a site that has working copies of said games? Not asking for direct link to a ROM as that would be a no no of course. I just want to get ahold of images that are gonna work on real hardware with NROM-256.

Thanks!!

[tepples]

All the galaxians I find have a bad header, same goes for space invaders.

I believe some emulators have header editors that can strip the "DiskDude!" bullshit, and I seem to remember that more recent GoodNES versions can as well.

Can anyone point me in the general direction to a site that has working copies of said games?

DKOldies.com has authentic Game Paks, and if it's sold out, try eBay.

Not asking for direct link to a ROM as that would be a no no of course. I just want to get ahold of images that are gonna work on real hardware with NROM-256.

Dwedit reported that some of the "menu only" multicart ROMs have Galaxian built into them, due to the way the game maps memory: Galaxian uses only half of the PRG space on an NROM-128 board. If you just want to test your NROM-256 devcart or reproduction skills, you can try it out on something Free like LJ65.

[tokumaru]

Bad headers shouldn't be a problem when using devcarts, because you simply don't use the headers. If the games don't work, the problem must be somewhere else...

[Jeroen]

^^powerpak however, complains...alot. (depending on your rom set)

[nintendo2600]

All the galaxians I find have a bad header, same goes for space invaders.

I believe some emulators have header editors that can strip the "DiskDude!" bullshit, and I seem to remember that more recent GoodNES versions can as well.

Can anyone point me in the general direction to a site that has working copies of said games?

DKOldies.com has authentic Game Paks, and if it's sold out, try eBay.

Not asking for direct link to a ROM as that would be a no no of course. I just want to get ahold of images that are gonna work on real hardware with NROM-256.

Dwedit reported that some of the "menu only" multicart ROMs have Galaxian built into them, due to the way the game maps memory: Galaxian uses only half of the PRG space on an NROM-128 board. If you just want to test your NROM-256 devcart or reproduction skills, you can try it out on something Free like LJ65.

OK so if galaxian only uses half of the NROM-128 should I be doubling it up or someting to make it work right? I've tried making it and everytime there is garbled graphics. And I know it's not bad wiring as I've used the exact same board and the exact same chips succesfully with other code.

[Memblers]

Did you check the mirroring? That can mess up the background graphics.

[nintendo2600]

Did you check the mirroring? That can mess up the background graphics.

Ya I did check but I'll build another one and see what happens. Last time I build a galaxian cart was a while ago so it might have been something that simple or it might not.