Don't forget thepenguin77; he did a lot of the testing and helped get most of the information in my post here: http://ourl.ca/11891/224537
I played the minor role of beta testing FLASHY (I took my 84+SE 1.02->1.03->1.02), as did a couple others, who can speak for themselves. (I think DJ was among them, IIRC.)

The only thing I'm actually wondering about this is if TI will actually even care enough to attempt to prevent a boot code change by some new OS.

On TI-BANK, the news about Flashy says something implying they don,t believe we permanently unlocked the 84+ with Flashy, in reference to how they countered the key factoring, Nleash, etc, and that they might try to come with another alternative to prove us wrong. However, I am wondering what kind of alternative they could find...

On TI-BANK, the news about Flashy says something implying they don,t believe we permanently unlocked the 84+ with Flashy, in reference to how they countered the key factoring, Nleash, etc, and that they might try to come with another alternative to prove us wrong. However, I am wondering what kind of alternative they could find...

While it's true that TI can always do something to counter what we do, the fact remains that every 73/83+ and 84+ series calculator manufactured to date (and so far, still being manufactured) is permanently hackable. The only move they have is to modify the hardware, and if you've already bought it, you're in good shape.

Downgrading Pocket and emulating other calcs on it? Sweeeet, nice job BrandonW!

I don't think this allows us to emulate other calcs... You can't just take the boot code from another calc and expect it to work, because of all the small hardware differences.

Quote from: JosJuice on July 07, 2011, 07:35:53 am

Quote from: ephan on July 07, 2011, 06:21:40 am

Downgrading Pocket and emulating other calcs on it? Sweeeet, nice job BrandonW!

I don't think this allows us to emulate other calcs... You can't just take the boot code from another calc and expect it to work, because of all the small hardware differences.

Can't we emulate the 84+ and 83+ OSs?

The Pocket.fr is exactly like an 84+ hardware-wise, so you can just put the 84+ OS on it, and it'll work. The 83+ has some differences in hardware, plus the archive size is different, so it doesn't really work.

We could... sorta. It wouldn't be able to just run like any OS now, which can just run from flash. The boot code would have to read the flash drive and copy code to RAM, while also making the OS able to copy more code. Because you'll just be copying to RAM anyway, it would make a lot more sense just to make a minimal OS that did the same thing. No point in risking modification of the boot code. The closest you should ever get to that is making a very small mod that runs page $3C/$6C under certain conditions, and $3C/$6C could contain that code. Since $3C/$6C is a privileged page, (as is all of its sector, because $3F/$6F is more boot code...) you wouldn't need any other OS. To be honest, I still don't see much point in "booting from a flash drive"