Re: A83: OT: Off topic, but interesting


Re: A83: OT: Off topic, but interesting

In accordance with the prophecy, Nathan Gaylinn uttered:

> Linus Akesson wrote:

>> In accordance with the prophecy, Nathan Gaylinn uttered:
>>> Is it possible to have a rom chip w/ the same i/o set up as the ram chip
>>> in a TI calc? What changes would have to be made? I know this is out
>>> there, but the implications are wonderful, a plug in cartridge w/ an
>>> entire calc's ram stored in it permanently! Is this possible? Has this
>>> been considered before? I want input. What do you guys think?
>>> --
>>> "What, behind the rabbit?"-King Arthur
>>> The Heat Index
>>> (\\_
>>> o(_;
>> Am I getting this right? Are you suggesting a ROM chip for $8000-$ffff?
>> Because how would you be able to use your calc without RAM? And even if you
>> had RAM installed at all the fixed RAM locations and ROM in user space, you
>> wouldn't be able to calculate anything on the home screen, because where
>> would the input buffer go? And the floating point / operator stacks?
>> "Memory is necessary for all operations of reason."
>>                                    -- Blaise Pascal
>> Linus
>> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>>    "Television has changed the American child from in irresistable force
>>    into an immovable object."
>>                                                     -- Laurence J. Peter
>> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>>, visit (PGP key available).

> No, that's not quite what I mean. I know the calc needs the ram, what I am
> suggesting is completely replacing the ram chip w/ a comparable rom chip (if one
> exists) so that all the normal functions of the ram are carried out on the new
> rom and all the normal old rom functions still happen on the old rom. I have NO
> idea if this is possible, so don't go yelling at me saying "You can't do that!"
> Because I just don't know, it's just a thought.

Well, I wasn't yelling, really... =) But are you refering to some kind of
non-volatile RAM? A chip with, say, 32 different banks of 32kb RAM, one of
which can be available to the calc at a time. Then you'd be able to turn off
your calc and switch to another bank. You wouldn't be able to share or
transfer anything between the banks through the calculator though, you'd have
to link cable transfer stuff into the correct bank every time.

            He may look like an idiot and talk like an idiot but
            don't let that fool you.  He really is an idiot.
                                                 -- Groucho Marx
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