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Offline alberthrocks

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Re: Let's build our own calculator!
« Reply #120 on: August 06, 2010, 02:51:55 pm »
Grayscale is definitely on the list for OTZ80 todo. (Grayscale = 4 bit color / 16 levels, like Nspire)
100% pretty color is on the list for OTARM though. ;)

I'm hoping we can get TI backward compatibility, since I don't exactly want to leave years of work behind.
BTW, if you are suggesting software stuff, redirect them to SirCmpwn. His OS, KnightOS, is going to be on this calc. ;)

EDIT: For more info on the eZ80, lookie here: http://dkc1.digikey.com/us/en/tod/Zilog/eZ80Acclaim/eZ80Acclaim.html
« Last Edit: August 06, 2010, 02:55:22 pm by alberthrocks »
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Offline willrandship

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Re: Let's build our own calculator!
« Reply #121 on: August 06, 2010, 02:55:00 pm »
I was just thinking, how hard will it be to port KnightOS to ARM? The hardware would obviously be very different, but the kernel could be portable, couldn't it? I don't know much in this area.
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Offline alberthrocks

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Re: Let's build our own calculator!
« Reply #122 on: August 06, 2010, 02:58:13 pm »
@willrandship: oh no, we won't be doing that. Linux will be placed on the ARM based calc.
From there, we program in C, C++, etc. (or ASM for diehards) upwards.

Z80 asm is pretty much different than ARM asm, but I'm not too sure. Ask anyone who has programmed stuff for the Nspire. They can tell you. :)
« Last Edit: August 06, 2010, 02:59:11 pm by alberthrocks »
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Activity remains limited due to busyness from school et al. Sorry! :( Feel free to PM, email, or if you know me well enough, FB me if you have a question/concern. :)

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Offline meishe91

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Re: Let's build our own calculator!
« Reply #123 on: August 06, 2010, 02:58:59 pm »
Quote from: alberthrocks on August 06, 2010, 02:51:55 pm
Grayscale is definitely on the list for OTZ80 todo. (Grayscale = 4 bit color / 16 levels, like Nspire)
100% pretty color is on the list for OTARM though. ;)

I'm hoping we can get TI backward compatibility, since I don't exactly want to leave years of work behind.
BTW, if you are suggesting software stuff, redirect them to SirCmpwn. His OS, KnightOS, is going to be on this calc. ;)

EDIT: For more info on the eZ80, lookie here: http://dkc1.digikey.com/us/en/tod/Zilog/eZ80Acclaim/eZ80Acclaim.html

16-level grayscale is not 4 bit color. It is 8 bit grayscale. Sorry, but there is a difference.
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_player1537

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Re: Let's build our own calculator!
« Reply #124 on: August 06, 2010, 02:59:43 pm »
Quote from: meishe91 on August 06, 2010, 02:58:59 pm
Quote from: alberthrocks on August 06, 2010, 02:51:55 pm
Grayscale is definitely on the list for OTZ80 todo. (Grayscale = 4 bit color / 16 levels, like Nspire)
100% pretty color is on the list for OTARM though. ;)

I'm hoping we can get TI backward compatibility, since I don't exactly want to leave years of work behind.
BTW, if you are suggesting software stuff, redirect them to SirCmpwn. His OS, KnightOS, is going to be on this calc. ;)

EDIT: For more info on the eZ80, lookie here: http://dkc1.digikey.com/us/en/tod/Zilog/eZ80Acclaim/eZ80Acclaim.html

16-level grayscale is not 4 bit color. It is 8 bit grayscale. Sorry, but there is a difference.

4 bit greyscale?  I vote for color versus greyscale btw :D

Edit:  Haha, I'm a ninja :)
« Last Edit: August 06, 2010, 03:01:05 pm by _player1537 »
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Offline calc84maniac

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Re: Let's build our own calculator!
« Reply #125 on: August 06, 2010, 02:59:46 pm »
Quote from: meishe91 on August 06, 2010, 02:58:59 pm
Quote from: alberthrocks on August 06, 2010, 02:51:55 pm
Grayscale is definitely on the list for OTZ80 todo. (Grayscale = 4 bit color / 16 levels, like Nspire)
100% pretty color is on the list for OTARM though. ;)

I'm hoping we can get TI backward compatibility, since I don't exactly want to leave years of work behind.
BTW, if you are suggesting software stuff, redirect them to SirCmpwn. His OS, KnightOS, is going to be on this calc. ;)

EDIT: For more info on the eZ80, lookie here: http://dkc1.digikey.com/us/en/tod/Zilog/eZ80Acclaim/eZ80Acclaim.html

16-level grayscale is not 4 bit color. It is 8 bit grayscale. Sorry, but there is a difference.
Actually, it is 4-bit grayscale ;)
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Offline alberthrocks

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Re: Let's build our own calculator!
« Reply #126 on: August 06, 2010, 03:00:42 pm »
I'm confused with all of these different terms and such. :P
But yeah, just grayscale. :)

Color is almost impossible with the Z80, since it's kind of slow.
(Actually, there is an OS with color... but it really looks ugly. Better to have full color than partial.)

eZ80 chips cost around $7-$18, depending on the type needed. (Look down for the links)
http://digikey.com/PTM/PTMPartList.page?site=us&lang=en&ptm=6200&WT.z_ptm_structured=Buy%20Now%20Button
« Last Edit: August 06, 2010, 03:01:50 pm by alberthrocks »
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Activity remains limited due to busyness from school et al. Sorry! :( Feel free to PM, email, or if you know me well enough, FB me if you have a question/concern. :)

Don't expect me to be online 24/7 until summer. Contact me via FB if you feel it's urgent.


Proud member of ClrHome!

Spoiler For "My Projects! :D":
Projects:

Computer/Web/IRC Projects:
C______c: 0% done (Doing planning and trying to not forget it :P)
A_____m: 40% done (Need to develop a sophisticated process queue, and a pretty web GUI)
AtomBot v3.0: 0% done (Planning stage, may do a litmus test of developer wants in the future)
IdeaFrenzy: 0% done (Planning and trying to not forget it :P)
wxWabbitemu: 40% done (NEED MOAR FEATURES :P)

Calculator Projects:
M__ C_____ (an A____ _____ clone): 0% done (Need to figure out physics and Axe)
C2I: 0% done (planning, checking the demand for it, and dreaming :P)

Offline meishe91

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Re: Let's build our own calculator!
« Reply #127 on: August 06, 2010, 03:02:15 pm »
Quote from: calc84maniac on August 06, 2010, 02:59:46 pm
Quote from: meishe91 on August 06, 2010, 02:58:59 pm
Quote from: alberthrocks on August 06, 2010, 02:51:55 pm
Grayscale is definitely on the list for OTZ80 todo. (Grayscale = 4 bit color / 16 levels, like Nspire)
100% pretty color is on the list for OTARM though. ;)

I'm hoping we can get TI backward compatibility, since I don't exactly want to leave years of work behind.
BTW, if you are suggesting software stuff, redirect them to SirCmpwn. His OS, KnightOS, is going to be on this calc. ;)

EDIT: For more info on the eZ80, lookie here: http://dkc1.digikey.com/us/en/tod/Zilog/eZ80Acclaim/eZ80Acclaim.html

16-level grayscale is not 4 bit color. It is 8 bit grayscale. Sorry, but there is a difference.
Actually, it is 4-bit grayscale ;)

Really? Sorry, Wikipedia is just saying it is 8 bit grayscale.
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_player1537

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Re: Let's build our own calculator!
« Reply #128 on: August 06, 2010, 03:05:49 pm »
" show up to sixteen (4-bit) different shades, "
"with 8 bits per sampled pixel, which allows 256 different intensities "

;)

Besides that, I think color would be for the ARM if not both.
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Offline meishe91

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Re: Let's build our own calculator!
« Reply #129 on: August 06, 2010, 03:08:56 pm »
Quote from: _player1537 on August 06, 2010, 03:05:49 pm
" show up to sixteen (4-bit) different shades, "
"with 8 bits per sampled pixel, which allows 256 different intensities "

;)

Besides that, I think color would be for the ARM if not both.

Ah ok, haha I didn't actually read it all I just looked at the boldfaced words on the side :P
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Offline Happybobjr

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Re: Let's build our own calculator!
« Reply #130 on: August 06, 2010, 03:09:12 pm »
just a thought, maybe we could have a small back-light that you can turn off and on, i hate being in a classroom where i have trouble seeing  my screen
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Offline calc84maniac

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Re: Let's build our own calculator!
« Reply #131 on: August 06, 2010, 03:09:17 pm »
Quote from: _player1537 on August 06, 2010, 03:05:49 pm
" show up to sixteen (4-bit) different shades, "
"with 8 bits per sampled pixel, which allows 256 different intensities "

;)

Besides that, I think color would be for the ARM if not both.
Congratulations, you just took two phrases completely out of context :P

"Some early grayscale monitors can only show up to sixteen (4-bit) different shades"
"but today grayscale images (as photographs) intended for visual display (both on screen and printed) are commonly stored with 8 bits per sampled pixel, which allows 256 different intensities (i.e., shades of gray) to be recorded, typically on a non-linear scale."
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Offline meishe91

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Re: Let's build our own calculator!
« Reply #132 on: August 06, 2010, 03:11:08 pm »
Quote from: happybobjr on August 06, 2010, 03:09:12 pm
just a thought, maybe we could have a small back-light that you can turn off and on, i hate being in a classroom where i have trouble seeing  my screen

I like the idea. But that will probably be a much later addition because it's not a necessity.
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Re: Let's build our own calculator!
« Reply #133 on: August 06, 2010, 03:13:22 pm »
Quote from: calc84maniac on August 06, 2010, 03:09:17 pm
Quote from: _player1537 on August 06, 2010, 03:05:49 pm
" show up to sixteen (4-bit) different shades, "
"with 8 bits per sampled pixel, which allows 256 different intensities "

;)

Besides that, I think color would be for the ARM if not both.
Congratulations, you just took two phrases completely out of context :P

"Some early grayscale monitors can only show up to sixteen (4-bit) different shades"
"but today grayscale images (as photographs) intended for visual display (both on screen and printed) are commonly stored with 8 bits per sampled pixel, which allows 256 different intensities (i.e., shades of gray) to be recorded, typically on a non-linear scale."

Lol, sorry I was just picking out specific instances that we were talking about.


Quote from: meishe91 on August 06, 2010, 03:11:08 pm
Quote from: happybobjr on August 06, 2010, 03:09:12 pm
just a thought, maybe we could have a small back-light that you can turn off and on, i hate being in a classroom where i have trouble seeing  my screen

I like the idea. But that will probably be a much later addition because it's not a necessity.

I also like this idea.  Its annoying when we are going home, and its dark outside and my mom won't let me turn on one of the lights in the car.  I can't program in the dark sadly :(  (as in testing it for correct outputs and such)

Edit: woah, that sentance sucked, fixing it.
« Last Edit: August 06, 2010, 03:14:57 pm by _player1537 »
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Offline Happybobjr

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Re: Let's build our own calculator!
« Reply #134 on: August 06, 2010, 03:15:53 pm »
possibly have like a small switch on the back, i don't think one should be controlled through the calc,  that would require you seeing it for you to see ;P

also how would you create even lighting through out?


not like we need one to program ti-basic  on our 83 + series, but testing it. :P (i can program ti-basic with my eyes cosed :P)
« Last Edit: August 06, 2010, 03:17:00 pm by happybobjr »
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