256k ROMs don't work - Githubissues

mdbergmann commented 8 years ago

Hi.

Sorry to open an issue for this. I'll gladly write to a mailing list or something else if available.

I'd really like to get iUAE running. Here is my problem:

downloaded the sources for 1.1.0.
added kick13.rom to bundle (it is found and read on emulator startup, rom was extracted from a real a500).
added workbench 1.34 adf to bundle.
build and run on iPad mini 4 all I get is a grey screen after a few seconds but nothing more. enabling the LEDs I see 5 LEDs. The red one is flashing in a certain frequency. Resetting doesn't help. Inserting an adf doesn't help. There is just this grey screen and the red LED flashing. I've enabled DEBUG_UAE4ALL and DEBUG_MEMORY but I couldn't really see any issues. I've removed the run script phase for the OpeniOSDev stuff. Is this required?

Cheers, Manfred

mithrendal commented 8 years ago

The removal of the runscript is correct. Did you try the dev branch?

mdbergmann commented 8 years ago

Yeah, I've tried the dev branch just now. Same problem.

simontoens commented 8 years ago

Does the same thing happen when you run in a simulator? Does this rom you are using work fine with other Amiga emulators (for example FS-UAE)?

mdbergmann commented 8 years ago

The exact same thing happens on the simulator, it's just a bit quicker until the grey screen comes up. The rom works fine on fs-uae.

I can see the grey screen on fs-uae as well, after it however would come the PAL white screen with the 1.3 disk hand. It seems it's stuck somewhere.

simontoens commented 8 years ago

hmmm weird, I don't have any good idea on how to debug this further, apart from trying a different rom...

mdbergmann commented 8 years ago

Can you send me a rom that works for you? Then we can confirm it's because of the rom. If that's really the problem then uae4all should really be tweaked to accept more roms.

mdbergmann commented 8 years ago

OK, I found a 1.3 ROM that works. But it's strange. My original A500 ROM is 256 kB this one I got elsewhere is 512kB. Also all the Cloanto ROMs for v1.0-1.4 are all 256kB in size. It looks like the rom loading code is not very mature.

Every though of using uae4all2?

simontoens commented 8 years ago

Glad you got it working at least. It is possible that the rom loading code is not using the latest from uae4all2 - it may be worthwhile to compare the code.

simontoens commented 8 years ago

@mdbergmann based in your findings, could you update this issue's title to something like: "256k roms don't work"?

emufreak commented 8 years ago

I made a quick research uae4all2 does support 256k roms. So it would be possible to port this

emufreak commented 8 years ago

@mdbergmann I fixed this in my latest commit to dev. Can you confirm?

mdbergmann commented 8 years ago

I can confirm that my extracted original A500 v1.3 256k rom does work now.

Thanks

mithrendal commented 8 years ago

Nice. Good work. 👍

emufreak / iAmiga

256k ROMs don't work #36