Author Topic: ThePenguin77 Removes the Last Traces of TI from his Calculator (Read 34369 times)

XVicarious · « **Reply #15 on:** June 28, 2011, 07:14:44 pm »

So about this eliminating the 8kb limit, how long until we can have say like an OS patch to remove this. I know we have Hot_Dog's Crabcake, but what about just completely patching the OS to remove it?

thepenguin77 · « **Reply #16 on:** June 28, 2011, 07:15:14 pm »

Well, since runer did a (no revision) we can safely assume that this works on all 84+'s and that you don't need to use the special sequence for anything besides port 14h.

Jkag, how about a boot code mod?

DJ Omnimaga · « **Reply #17 on:** June 28, 2011, 07:19:51 pm »

Yeah it's a boot code mode we're talking about here, right? (so the user doesn't have to patch his OS over and over, when re-installing it).

Also I think the difference between this and Crabcake was that Crabcake is one of (if not the) first successful released attempt to break the 8 KB limit, but it actually worked around it, while ThePenguin77 hack gets rid of it completely.

Nice job to Hot Dog on Crabcake and ThePenguin77 on this, and nice job to BrandonW/DrDnar too

fb39ca4 · « **Reply #18 on:** June 28, 2011, 07:21:23 pm »

What about the TI logo?
But seriously, nice job on squashing out the TI on your calc.

leafy · « **Reply #19 on:** June 28, 2011, 07:24:20 pm »

Well Crabcake doesn't require the user to do anything, it's built into the program itself.

XVicarious · « **Reply #20 on:** June 28, 2011, 07:28:01 pm »

well we could have two compiled versions of the game, one with Crabcake, another that is smaller (I believe Crabcake requires some space, albeit not a lot).
I still think its a good idea, its a limit that should have been taken off after TI decided selling apps/programs wasn't gonna work.

Hot_Dog · « **Reply #21 on:** June 28, 2011, 07:54:53 pm »

By the way guys, as a reminder, DO NOT ATTEMPT TO UNLOCK FLASH UNLESS YOU KNOW WHAT YOU ARE DOING.

Modifying the boot code is actually a good idea. However, I don't see it eliminating Crabcake for three reasons:

1. Crabcake is completely portable
2. There are some people who really shouldn't be messing with their boot code (or who don't WANT to mess up their boot code), namely beginners
3. There's always a chance that TI could write a boot 1.02, after which a new patch might have to be written.

thepenguin77 · « **Reply #22 on:** June 28, 2011, 08:03:12 pm »

Yeah, hot_dog, I don't think putting it in the boot code is a good idea, yet. We first need to know what kind of side effects this will have before we make it permanent. (Programs will no longer crash, they will freeze or go crazy.)

However, runer figured out an easy way mod the boot code that doesn't involve erasing it, you only overwrite what was previously there. In fact, it is simple enough that I wouldn't mind writing it in the boot code myself. (Not that I'm normal

)

TIfanx1999 · « **Reply #23 on:** June 28, 2011, 08:03:45 pm »

Wow, so many awesome advances recently! :O Great work thepenguin and anyone else who was involved with this!

Hot_Dog · « **Reply #24 on:** June 28, 2011, 08:05:05 pm »

Quote from: thepenguin77 on June 28, 2011, 08:03:12 pm

Yeah, hot_dog, I don't think putting it in the boot code is a good idea, yet. We first need to know what kind of side effects this will have before we make it permanent. (Programs will no longer crash, they will freeze or go crazy.)

Hmmm, that makes sense. It's for that reason that Crabcake relocks the C000-FFFF area upon shutdown

thepenguin77 · « **Reply #25 on:** June 28, 2011, 08:08:36 pm »

Quote from: Hot_Dog on June 28, 2011, 08:05:05 pm

Quote from: thepenguin77 on June 28, 2011, 08:03:12 pm
Yeah, hot_dog, I don't think putting it in the boot code is a good idea, yet. We first need to know what kind of side effects this will have before we make it permanent. (Programs will no longer crash, they will freeze or go crazy.)

Hmmm, that makes sense. It's for that reason that Crabcake relocks the C000-FFFF area upon shutdown

Wait, you mean you already implemented this? Because if that's the case, then you should save the previous values so that if a person has it permanently unlocked, crabcake won't relock it.

Edit:
Also with this, you don't to shut down the hooks.

Hot_Dog · « **Reply #26 on:** June 28, 2011, 08:11:51 pm »

Quote from: thepenguin77 on June 28, 2011, 08:08:36 pm

Quote from: Hot_Dog on June 28, 2011, 08:05:05 pm
Quote from: thepenguin77 on June 28, 2011, 08:03:12 pm
Yeah, hot_dog, I don't think putting it in the boot code is a good idea, yet. We first need to know what kind of side effects this will have before we make it permanent. (Programs will no longer crash, they will freeze or go crazy.)

Hmmm, that makes sense. It's for that reason that Crabcake relocks the C000-FFFF area upon shutdown

Wait, you mean you already implemented this? Because if that's the case, then you should save the previous values so that if a person has it permanently unlocked, crabcake won't relock it.

Edit:
Also with this, you don't to shut down the hooks.

Don't the hooks have problems when a different page is swapped using port $05 on a 15 Mhz? On the 15 Mhz calcs, RAM is never unlocked.

Whatever the case, I agree about saving the value in case someone permanently unlocked their flash

thepenguin77 · « **Reply #27 on:** June 28, 2011, 08:14:23 pm »

Oh, no. Nevermind. I thought that you had already implemented the port 25/26 thing in CrabCake. I meant save those values

And there's no reason to save the flash unlock state, flash gets relocked every time you archive/unarchive something or even run an app.

Hot_Dog · « **Reply #28 on:** June 28, 2011, 08:16:57 pm »

Quote from: thepenguin77 on June 28, 2011, 08:14:23 pm

Oh, no. Nevermind. I thought that you had already implemented the port 25/26 thing in CrabCake. I meant save those values

And there's no reason to save the flash unlock state, flash gets relocked every time you archive/unarchive something or even run an app.

Actually, if I implemented this, you're right, there's no need to worry about hooks. It would also save more space. My hesitation beforehand was I thought I would need to run boot pages, but as it turns out, I only need unlock flash, and crabcake already has the unlock flash code

squidgetx · « **Reply #29 on:** June 28, 2011, 08:32:00 pm »

Woah, that's crazy?

But no one's actually tried running anything >8kb yet with this, right? Like penguin said, there's a chance it would do some weird thing instead haha

Or am I interpreting it wrong?

Author Topic: ThePenguin77 Removes the Last Traces of TI from his Calculator (Read 34369 times)

XVicarious

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

thepenguin77

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

DJ Omnimaga

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

fb39ca4

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

leafy

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

XVicarious

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

Hot_Dog

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

thepenguin77

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

TIfanx1999

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

Hot_Dog

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

thepenguin77

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

Hot_Dog

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

thepenguin77

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator

Hot_Dog

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squidgetx

Re: ThePenguin77 Removes the Last Traces of TI from his Calculator