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Author Topic: A new z80 calc... in color?  (Read 68054 times)

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Offline Juju

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Re: A new z80 calc... in color?
« Reply #30 on: November 08, 2012, 02:10:20 pm »
Linux on the 84+ all of my yes.
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Offline Keoni29

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Re: A new z80 calc... in color?
« Reply #31 on: November 08, 2012, 02:15:18 pm »

Judging from the analyzation I can conclude that they used the standard 83+ font. My guess is that it's scaled up 3 times. With that given we can calculate the resolution which is estimated at:
normal char width=4pixels
times 3
times 39 char that fit on the screen here
4*39*3= approximately 468 pixels wide

Now: if the aspect ratio of the image is correct we can easily estimate the height wich is about 355 pixels

From a programmers perspective I would say that the resolution is approximately:
480*320

Edit: it might just be a font twice as big. then the res is most likely the same as an nspire
« Last Edit: November 08, 2012, 02:19:30 pm by Keoni29 »
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Offline aeTIos

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Re: A new z80 calc... in color?
« Reply #32 on: November 08, 2012, 02:17:08 pm »
the heckO.o
Adriweb said it was 320*240 and I'm tempted to believe that since that's also the nspire res so I bet it's the same screen (not sure tho)
edit: which is not possible.
« Last Edit: November 08, 2012, 02:17:34 pm by aeTIos »
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Offline Keoni29

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Re: A new z80 calc... in color?
« Reply #33 on: November 08, 2012, 02:20:22 pm »
Edited. It might be the same size as the nspire. The picture is not very clear. If the font it just 8 pixels wide then it's nspire size.
The thin graph lines might just be image compression.
« Last Edit: November 08, 2012, 02:20:50 pm by Keoni29 »
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Offline calc84maniac

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Re: A new z80 calc... in color?
« Reply #34 on: November 08, 2012, 02:23:43 pm »
That's definitely not the same font. Just look at the N.
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Offline Adriweb

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Re: A new z80 calc... in color?
« Reply #35 on: November 08, 2012, 02:25:24 pm »
Well I quite believe it's 320x240.
Weird that you found differently, but I may be wrong ^^
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Offline Keoni29

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Re: A new z80 calc... in color?
« Reply #36 on: November 08, 2012, 02:27:44 pm »
Quote from: calc84maniac on November 08, 2012, 02:23:43 pm
That's definitely not the same font. Just look at the N.
That's just windows scaling it big time. The shape of the other letters match.
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Offline calc84maniac

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Re: A new z80 calc... in color?
« Reply #37 on: November 08, 2012, 02:30:49 pm »
No, I mean, a capital N in the normal small font is like:

XX
X X
X X
X X
X X
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Offline Keoni29

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Re: A new z80 calc... in color?
« Reply #38 on: November 08, 2012, 02:33:55 pm »
Ah I see what you mean. Still it's 3 pixels wide plus one empty space in between chars. That's just obvious. The scale determines what the resolution is. Yes it might be a different font. That means that they might rewrite the GUI entirely.
« Last Edit: November 08, 2012, 02:34:08 pm by Keoni29 »
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Offline willrandship

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Re: A new z80 calc... in color?
« Reply #39 on: November 08, 2012, 02:42:53 pm »
They already have to rewrite the entire gui. It's currently based around drawing routines that are extremely pixel-based, and for a very specific resolution.
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Offline ben_g

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Re: A new z80 calc... in color?
« Reply #40 on: November 08, 2012, 02:56:06 pm »
I wonder if they have also increased the memory size. Well, they kinda have too, since a 320*240 graphic buffer is, assuming a very common 16bpp, 153600 bytes. This is way more than will fit in RAM. In fact, it's so much larger that this calc will probably have more RAM memory than the old 84+ has flash.
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Offline Keoni29

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Re: A new z80 calc... in color?
« Reply #41 on: November 08, 2012, 02:57:58 pm »
Why are they even calling this a ti84+? Because otherwise teachers will ban it from exams?
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Offline ElementCoder

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Re: A new z80 calc... in color?
« Reply #42 on: November 08, 2012, 02:58:01 pm »
Now this reminds me why calculators are epic :P I want this 0.0
[edit]^ maybe because it would be too much work to add another calc to the chart of approved calcs because of all the tests etc?
« Last Edit: November 08, 2012, 02:59:36 pm by ElementCoder »
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Offline willrandship

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Re: A new z80 calc... in color?
« Reply #43 on: November 08, 2012, 03:05:05 pm »
Crazy thought: They give it 32 MB and the old CPU, to use up all the chips left over from making non-CX nspires, but they're using the color screens from the CX, and the 84+ enclosure.
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Offline Keoni29

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Re: A new z80 calc... in color?
« Reply #44 on: November 08, 2012, 03:10:41 pm »
No since this will probably have an internal battery and the screen area is different. The main black part is made up out of 3 sections whereas the original 84+SE has 2 main parts

So they will be producing different enclosures. However TI recycled old hardware in the past, so it might be possible.
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