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Help: Dumping Cartridges for dummies


28 replies to this topic

#26 santosp OFFLINE  

santosp

    Dragonstomper

  • 755 posts
  • Location:Athens - Greece

Posted Wed May 23, 2018 8:19 PM

I made a video to show how its done


Nir

 

Nir your video not appear anymore online. I hope to not reported as illegal from some heat head!


Edited by santosp, Wed May 23, 2018 8:19 PM.


#27 Marsupilami OFFLINE  

Marsupilami

    Chopper Commander

  • Topic Starter
  • 125 posts
  • looking 4 Atari FR/DE/BX/IT software
  • Location:Brittany, France, Europe

Posted Wed May 23, 2018 9:48 PM

I convert the .rom file to .car, and load it on eclaireXL within cartridge loader.

The cartridge load normally, and choosing the "I" option I see in my screen "Gerat nicht angeschlossen - Prufen!" message.

Not some error.

Thanks @santop. That's the "error" message it should gives (the one with the real cartridge on a real 800xl).

But it's not the message i have in Altirra so i guess Altirra (windows version) is a bit sensitive with the .ROM file.

At least your test shows that my dump is good :)


Edited by Marsupilami, Wed May 23, 2018 9:56 PM.


#28 phaeron OFFLINE  

phaeron

    River Patroller

  • 2,458 posts
  • Location:USA

Posted Wed May 23, 2018 10:30 PM

Thanks @santop. That's the "error" message it should gives (the one with the real cartridge on a real 800xl).

But it's not the message i have in Altirra so i guess Altirra (windows version) is a bit sensitive with the .ROM file.

At least your test shows that my dump is good :)

 

The crash with the garbage at the bottom appears to be a bug in the cartridge that manifests if you have the H: device enabled in the emulator and have also enabled the non-default option to also install it as D:.

 

The bug is that the cartridge's init routine checks for a D: device, and if it finds one, attempts to patch it. Problem is, it revectors D: in HATABS to garbage in the middle of the ROM, which causes a crash. This is done at the same time that E: is patched, so it was probably a remnant of an early attempt at putting DOS on-cart. If you boot DOS off of a disk, this doesn't happen because DOS adds the D: device after cartridge init has occurred. But if it's already there... kaboom.



#29 ndary OFFLINE  

ndary

    Moonsweeper

  • 499 posts
  • Location:Israel

Posted Wed May 23, 2018 10:45 PM

 

Nir your video not appear anymore online. I hope to not reported as illegal from some heat head!

 

not sure why the link changed.. here is the new link:

 

Nir






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