Omnimaga
Calculator Community => Other Calculators => Topic started by: Stefan Bauwens on March 10, 2012, 09:23:03 am
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I made an article and added it to Omnimaga: http://www.omnimaga.org/index.php?action=articles;sa=view;article=87
Feel free to post here any comments/mistakes you may notice/etc.. here about it.
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I found a few things that maybe should be changed.
- In the comparison table, the speeds should be switched. The Prizm is the one that runs at 58MHz by default.
- "The speed on the CX appears to be faster than the PRIZM but I have read that for some things the PRIZM can be faster." is pretty ambiguous. Is it about math, interpreted languages, compiled languages, or a mix of them?
- nSpire and nDless should be spelled Nspire and Ndless, and PRIZM should probably be Prizm. (Though I'm just nitpicking now :P)
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I found a few things that maybe should be changed.
- In the comparison table, the speeds should be switched. The Prizm is the one that runs at 58MHz by default.
- "The speed on the CX appears to be faster than the PRIZM but I have read that for some things the PRIZM can be faster." is pretty ambiguous. Is it about math, interpreted languages, compiled languages, or a mix of them?
- nSpire and nDless should be spelled Nspire and Ndless, and PRIZM should probably be Prizm. (Though I'm just nitpicking now :P)
Okay thanks a lot. I changed that top thing just now since I saw it too.
I'll see what I'll do. :)
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PRIZM is fine imo, nSpire and nDless are not.
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Indeed, please write Nspire and Ndless :)
Compared to the TI-Z80 and TI-68k series, the programmability of both the Prizm and of the Nspire series is lower, even if the Prizm is much better than the Nspire series from that point of view.
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Yeah, sorry for that. But with all those games with the small n I believe I got confused. But I changed it already.
Lionel Debroux: That's actually really sad. D:
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The price for the CX can vary widely, and usually I'd say it's less than 160 dollars.
Amazon:195 (That's insanely expensive)
SchoolMart:138
Staples:160
J&R:150
Walmart:150
TechLine:138
Calculators Inc:138
Educational Electronics: 138
Those are all the retailers linked to by the TI website.
Edit: Those are CX CAS prices
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I don't think 150MHz is an accurate clock speed for the CX; that number comes from the highest setting that the non-CX Nspire allows. The OS clocks the CX to 120MHz, and as far as I can tell it can be clocked over 200MHz on most units (the one that I have maxes out at 246MHz)
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I don't think 150MHz is an accurate clock speed for the CX; that number comes from the highest setting that the non-CX Nspire allows. The OS clocks the CX to 120MHz, and as far as I can tell it can be clocked over 200MHz on most units (the one that I have maxes out at 246MHz)
So I should change it to 120mhz(can be overclocked to over 200) if I understand correctly?
Also Cyanophycean314, thanks for that. I just took a price from a quite poupular store(walmart) as example. Which is kinda inbetween, so quite ok I guess(?).
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We did some malloc tests on cemtech for the prizm, topic here (http://cemetech.net/forum/viewtopic.php?t=7539) in C, and found that the total memory allocatable is 131060 bytes, or 12 bytes shy of 128 KB. I'm not sure about allocating variables on the stack, though. This is only for the heap using malloc. So we can allocate more than 61KB.
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Ok, I'll change it to 128KB.
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Yeah, I think the 61KB limit was for stack-allocated variables.
I don't know the malloc limits for Nspire CX, but they're definitely over 4MB (because gbc4nspire successfully loads ROMs that large)
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61 KB is for user data, similar to the 24 KB available on the 83+/84+. BASIC has to work within this limit, but not native code.
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!Update. Replaces the specs table with a picture, since it otherwise looked screwed.
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!Update. Replaces the specs table with a picture, since it otherwise looked screwed.
You could have used the [table] code :P
This article is great, it is objective and really helps choosing the calc according to people's preferences, unlike some biaised article I saw on another website that purely advertised for one of the two calcs :)
edit: I gave you your 112th post rating :P
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For the battery on the Prizm you can have 4 AAA alkaline batteries OR 4 AAA Ni-MH batteries
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Doesn't the CX runs at 120 MHz by default and 150 only when overclocked?
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Doesn't the CX runs at 120 MHz by default and 150 only when overclocked?
No. It's the ClickPad/TouchPad...
CX/CM CPU runs at 132MHz by default, and up to 252 MHz when overclocked.
252MHz is the highest stable overclock ever performed to my knowledge, but not by me.
The best I got by myself is 240MHz.
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Oh right it was 132. Thanks for clarifying. In my case above 222 MHz nover warns me that it's not safe. (Actually I can got a bit higher and get away with no crash but around 246 it reboots)
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I should be getting my new CX in a few days when I go home for fall break, so I guess we'll get another overclock value to add to the list soon :D
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!Update. Replaces the specs table with a picture, since it otherwise looked screwed.
You could have used the [table] code :P
This article is great, it is objective and really helps choosing the calc according to people's preferences, unlike some biaised article I saw on another website that purely advertised for one of the two calcs :)
edit: I gave you your 112th post rating :P
Oh right XD.
Thanks a lot!
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Update: My new TI-Nspire CX CAS got really lucky and can clock its CPU up to 276MHz without crashing (282MHz is an instant crash). I have yet to see if 276MHz will cause occasional random crashes, but a simple test of gpSP-Nspire seems stable so far.
Edit: Okay, starting up Metroid Fusion in gpSP-Nspire causes a crash at 276MHz. Stable at 270MHz. As past cases have shown, the highest setting isn't fully stable.
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Update: My new TI-Nspire CX CAS got really lucky and can clock its CPU up to 276MHz without crashing (282MHz is an instant crash). I have yet to see if 276MHz will cause occasional random crashes, but a simple test of gpSP-Nspire seems stable so far.
Edit: Okay, starting up Metroid Fusion in gpSP-Nspire causes a crash at 276MHz. Stable at 270MHz. As past cases have shown, the highest setting isn't fully stable.
You can now emulate a Casio PRIZM on a TI-Nspire? O.O
Shockingly high, though. Mine is 246 max it seems with the current version of Nover. 242 with the previous ones. Above that it just reboots.
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Update: My new TI-Nspire CX CAS got really lucky and can clock its CPU up to 276MHz without crashing (282MHz is an instant crash). I have yet to see if 276MHz will cause occasional random crashes, but a simple test of gpSP-Nspire seems stable so far.
Edit: Okay, starting up Metroid Fusion in gpSP-Nspire causes a crash at 276MHz. Stable at 270MHz.
Great! Congratulations :)
Which AHB setting did you use?
May we have your Nspire CX hardware revision too ?
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Update: My new TI-Nspire CX CAS got really lucky and can clock its CPU up to 276MHz without crashing (282MHz is an instant crash). I have yet to see if 276MHz will cause occasional random crashes, but a simple test of gpSP-Nspire seems stable so far.
Edit: Okay, starting up Metroid Fusion in gpSP-Nspire causes a crash at 276MHz. Stable at 270MHz.
Great! Congratulations :)
Which AHB setting did you use?
May we have your Nspire CX hardware revision too ?
For my "stable" configuration I have 270MHz/270MHz/67MHz for base/cpu/ahb. On the back it says P-0112D (which I assume to be January 2012, revision D), and incidentally it came with OS 3.1.0.