Atari - Some games dumping incorrectly [Updated with better info] about cartreader HOT 5 CLOSED

I can confirm that there currently is an issue with the F6 code. The bank switch register area needs some additional code like what was done for the F8 carts. I have a working code fix but I'm waiting to test an F4 cart to see if that mapper also needs a similar fix.

I cannot duplicate the reported errors with F8 carts Ms. Pac-Man and RealSports Baseball. Both test carts that I picked up dump properly and match the known dumps.

Dumps of Pitfall II will not match the known dump. The register area at 0x1000 is random on boot. I chose to output 0xFFs in this area as each read will produce a different output. The "missing" 255 bytes tacked on the end of the known dump is some RNG data generated by the DPC chip. The RNG aka "poly" bytes do not exist in the ROM so they are not included in the dump.

from cartreader.

You might have a better chance asking skaman in the Arduino forum thread since those issues need a deeper understanding of the Atari code and I'm not sure if someone else here has worked with Atari yet.

from cartreader.

I reached out to skaman and pointed them here. I'm talking with them and providing some info to help look into it. Definitely seems to be an issue though, feel it would be useful to keep it here for others to be aware of until it is resolved.

from cartreader.

I included this in a message to Skaman, but just to note my findings here (and if anyone else wants to share theirs). I have 2 copies of RealSports Baseball, and two OSCR HW5 dumpers (vselect being the only difference), running the latest 12.6.
They always get this error, in the same place, on either cart, in either OSCR. I also have a Maxflash dumper from AtariMax and RealSports Baseball as well as Ms. Pac-Man dump fine from it. Only the OSCR gives me the issue with these 3 carts.

from cartreader.

My Ms. Pacman dumps just fine as skaman suggests, and likely my Pitfall II does too.

I'm getting an md5sum of Ms. Pacman as this:
87e79cd41ce136fd4f72cc6e2c161bee
And my (10240 byte) Pitfall II is giving this as its md5sum:
37ea16edda0bc46f5527c3890ea121ca

Both are playable on the MiSTer and tested to open (but not control) in stella.
I used my OSCRv3 (by the way, thanks for the hold button tip for fast game selection scrolling!) with the current unreleased git clone from 10/07/2023.

from cartreader.