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» Exclusive: C Programming on the TI-84 Plus CE
» Doors CSE 8.2 Released
» GraphnCalc83: A Review of a Faithful TI-83 Lookalike for iOS
» Projects of the Month: April 2015
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Exclusive: C Programming on the TI-84 Plus CE
Published by KermMartian on May 27, 2015 at 9:40:08 PM CST | Discuss this article (18)
Since the introduction of the TI-84 Plus CE at the beginning of this year, there has been speculation in the community that the new device would support easy C programming. The z80 processor in the older TI-83 Plus/TI-84 Plus was ill-suited to C programming, but the ez80 in the new calculator is even targeted by a C compiler available from Zilog for free. Our suspicions were further confirmed by the presence of IEEE754 floating-point routines embedded within the calculator's software; the TI-OS has never contained such support before. Finally, we saw demos of very well-made C applications for the TI-84 Plus CE at the T^3 2015 conference, so it was only a matter of time before the community got the ability to create C programs.
Of course, actually putting together the tooling and documentation to teach people to create TI-84 Plus CE programs in C is no mean feat, and happily, Cemetech programmer extraordinaire MateoConLechuga has put in that effort. Today, Mateo shared an in-depth tutorial on C programming for the TI-84 Plus CE with us, and it's just as thorough and helpful as we'd expect from someone who has earned the "Cemetech Expert" rank. Mateo has outlined the steps to install Zilog's C compiler, set up the necessary project settings to create TI-84 Plus CE programs, converting compiled binaries to .8xp programs, and even included a sample program that prints and manipulates strings and numbers. Mateo ends with thoughts and questions on how things like graphics, file manipulation, and so on should work, so I encourage you to visit the topic, try the tutorial, and contribute to the discussion. Congratulations to Mateo for getting this important chapter in the community's programming efforts underway!
Compiling C for the TI-84 Plus CE
Doors CSE 8.2 Released
Published by KermMartian on May 19, 2015 at 11:14:45 AM CST | Discuss this article (6)
Since version 8.0 in November 2013, Doors CSE has been a mainstay on many TI-84 Plus C Silver Edition graphing calculators. This powerful shell is an App that sits on top of the TI-OS, allowing users to create and run powerful TI-BASIC and assembly programs while leaving the math and science capabilities of the calculator untouched. Over the year and a half since Doors CSE 8.0 was released, Patrick "tr1p1ea" Prendergast and I have been working hard to field feature requests and bug reports to improve Doors CSE. The release of Doors CSE 8.1 last July brought features like a special Apps folder that allows you to list and run Apps on your calculator, more xLIBC hybrid TI-BASIC functions, and many fixes for minor bugs. Now, I'm happy to present Doors CSE 8.2, the next iteration of Doors CSE for the TI-84 Plus C Silver Edition.
Doors CSE 8.2 focuses on improving Doors CSE's interaction with the TI-OS and with other Apps. But what exactly is Doors CSE 8? Doors CSE lists and can run all of your TI-BASIC and Assembly games and programs. It lets you organize your programs into folders, and archive, lock, copy, rename, delete, and hide them. It gives you extra features like an enhanced TI-BASIC editor, a clock, lowercase letters, and much more. Doors CSE 8 also contains the powerful xLIBC library by Patrick Prendergast and Celtic 2 CSE, which will make color TI-BASIC programs and games more powerful, useful, and fun. Here's what's new:
Download & More Information
Download Doors CSE 8.2
Doors CSE 8 Wiki and Documentation
How to Put Doors CSE and Programs on your TI-84+CSE
GraphnCalc83: A Review of a Faithful TI-83 Lookalike for iOS
Published by comicIDIOT on May 1, 2015 at 10:09:24 PM CST | Discuss this article (9)
I was provided a gift code and invited to look at a TI-83/84 "Work-alike" clone, GraphnCalc83, for iOS. The app is a universal binary so it supports both the iPad and the iPhone/iPod. I'll be reviewing this app on an iPhone 6 on iOS8, I did use it on an iPad as well.
Read the full review >>
The Bottom Line
The app is remarkable. The developer set out to create a graphing calculator for iOS that does its best to emulate TI-83 programs. While I can't recommend this app as a substitute for a physical calculator, due to the extreme differences and lack of complete support for TI-83+ programs. I can recommend this app to those that can't afford a graphing calculator and have a desire to learn coding but do have access to an iOS device like an iPod or iPad. I'd like to see iCloud integration to a degree, of course the more integrated the better but save/share and retrieve would suffice. The app doesn't even support "File Sharing" under iTunes, which means the only way to get your programs off and on your digital calc is to e-mail them. If File Sharing is supported, retrieving and sending programs would be as simple as dragging and dropping to/from the File Sharing window or clicking the appropriate buttons. If this application takes off it'd be amazing if we'd eventually see a centralized way to share programs with others similarly to ticalc.org.
In brief, it's not for everyone but for those with an iOS device and a need for a graphing calc with programming capabilities this is a must. You can check it out on the App Store here (USD $5.99).
Projects of the Month: April 2015
Published by tifreak8x on May 3, 2015 at 8:45:10 PM CST | Discuss this article (8)
Another month has passed, which means it's time for our monthly Projects of the Month (POTM) article. The end of the academic semester, final exams and projects, AP exams, and SATs and ACTs are upon us, which means that people have been mostly busy with their education and jobs. Fortunately, some of our members have been particularly good at time management, juggling their personal programming projects in the midst of their other responsibilities. We're happy to showcase some of the most promising projects discussed on Cemetech this month.
Thanks to all of our members who have worked hard and shown us their creativity and perseverance this month. We can't wait to see where these and many other projects go in the coming month, as school winds down and free time ramps up. Who knows; perhaps a new Cemetech programming contest might even be on the horizon for the summer?
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