Yeah, the TI-73 is another calculator on my list of calculators I want. 
I'd much rather have an 86 or 89 than a 73. It is possible to run a 73 OS on an 83 series calc, anyway (with some modifications to the OS).
600 posts!
600 posts!
The Tari wrote:
I'd much rather have an 86 or 80 than a 73.... 600 posts!
First, I agree, the 73 is low on my list. Secondly, congratulations!
I'm at 176.
Well, I think the 73 (Explorer ?) actually has flash ROM, that's better than the 80.
→ ÷ ∟ ≥ ≠ ≤ ± π Θ √ ≅ ℕ ∞ ∑ ► → ∟ ⌂ º ± Ω π
The Tari wrote:
I'd much rather have an 86 or 89 than a 73. It is possible to run a 73 OS on an 83 series calc, anyway (with some modifications to the OS).
600 posts!
And visa versa. The TI-83+ OS can be loaded onto a TI-73, since hardware-wise they're 100% identical.
600 posts!
Congrats on getting these calcs.
My sister in college has an 89 as well; but the chances of me getting it are 0. 
But, I've got an 84+ SE, so I'm not complaining.
But, I've got an 84+ SE, so I'm not complaining.
yeah, I might look at getting an 89 for college (being I take Calc 1 in the fall).
I am the eye of the river
>(<')
>(<')
Xphoenix wrote:
Well, I think the 73 (Explorer ?) actually has flash ROM, that's better than the 80.
Dude... the 80 was the 2nd TI graphing calculator in existence and had no archive to speak of.
I know. That's why the TI-73 Explorer is better; it has Flash ROM.
→ ÷ ∟ ≥ ≠ ≤ ± π Θ √ ≅ ℕ ∞ ∑ ► → ∟ ⌂ º ± Ω π
Looking at your post, it seemed that you meant that the 73 had better Flash ROM. I'm having a bad day.
LOL!
Well, it could also be interpreted that way, so it's partially my fault
But how do you have "better" Flash ROM?
Well, it could also be interpreted that way, so it's partially my fault
But how do you have "better" Flash ROM?
→ ÷ ∟ ≥ ≠ ≤ ± π Θ √ ≅ ℕ ∞ ∑ ► → ∟ ⌂ º ± Ω π
Larger, that's 'more' ROM, not 'better' ROM.
Longer-lasting, do you mean that you can write/read (or whatever you guys do in ASM) more times w/o messing the calc up?
Longer-lasting, do you mean that you can write/read (or whatever you guys do in ASM) more times w/o messing the calc up?
→ ÷ ∟ ≥ ≠ ≤ ± π Θ √ ≅ ℕ ∞ ∑ ► → ∟ ⌂ º ± Ω π
Bigger=better
Archiving and unarchiving tears at the archive. Not quickly, but it still does. Evil program:
Code:
Archiving and unarchiving tears at the archive. Not quickly, but it still does. Evil program:
Code:
"O->Str1
For(A,1,13
Str1+Str1
End
Ans->Str1
0
Repeat getKey
Archive Str1
Unarchive Str1
End
DelVar Str1Disp "Gone forever.
haveacalc wrote:
Archiving and unarchiving tears at the archive. Not quickly, but it still does.
You know, people always say that, but has anyone ever actually had repeated archiving/unarchiving actually do any real damage? (such as killing the ROM) Or is all of this still in the purely theoretical area with untested real world affects?
Kllrnohj wrote:
You know, people always say that, but has anyone ever actually had repeated archiving/unarchiving actually do any real damage? (such as killing the ROM) Or is all of this still in the purely theoretical area with untested real world affects?
I haven't spoken to anyone that has had this happen, but then again I haven't spoken to anyone dumb enough to try it. Flash DOES wear out over time, and you can kill it in these calculators, but not with the above BASIC program, because that will display a garbage collect message. You can use hooks to suppress this message and leave the calculator writing to Flash over and over, but it's probably not going to die anytime soon. The better thing to do would be to unlock Flash and keep erasing the same sector over and over.
It's pretty unlikely, but it's not a bad idea to keep it in mind.
While we're on that topic, how does reading and writing to the Flash ROM go? I would imagine there are two ports or something: one for getting or setting the address and one for reading and writing at that address.
Reading is the same as RAM. Writing requires that you unlock it first with port 14h (and writes to this port are only accepted from a privileged page (1Ch/3Ch/7Ch, 1Dh,3Dh,7Dh, 1Fh,3Fh,7Fh, 2Fh/6Fh, and possibly 1Eh/3Eh/7Eh). The actual writing process is kind of complicated...it's best to disassemble something like WriteFlashUnsafe or check the Flash chip documentation.
There's also the source to pongOS, which I found quite useful for information about the flash chip.
We know that Flash chips can only be erased x times in their usable lifetime (x varies), and I remember some discussion which resulted in the conclusion that the Flash chip would last 20 years at the rate of several garbage collects a day.
We know that Flash chips can only be erased x times in their usable lifetime (x varies), and I remember some discussion which resulted in the conclusion that the Flash chip would last 20 years at the rate of several garbage collects a day.
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