Various programs for the TI84 Plus CE calculator, written in TI-BASIC and C.

Files are stored as a src directory for viewable source code, and a bin directory containing compiled .8xp files

TI-BASIC programs are difficult to share in a plaintext, so i just put them in .tibasic files (equivalent to a .txt file, I just wanted to be quirky) You could put the .8xp files in TI Connect CE to view the code, but I made them less readable to reduce file size on the calculator.

NOTE: C Programs are made using CE C/C++ Toolchain, and probably require Libload to run.

A solution to this coding problem, all in TI-BASIC:

// Give the output of this code
// (assuming a little endian machine)

#include <stdio.h>

int main(int argc, char* argv[]) {
  unsigned long long x = {CAREFULLY CRAFTED MAGIC NUMBER};
  printf("%s\n", (char*) &x);
}

Basically just divides a big number by 256 a bunch and finds characters in a look up table, but works with arbitrarily large inputs, avoiding the automatic rounding at values >10^10, preserving exact integer values no matter how big the numbers are.

Performs arithmetic on arbitrarily large integers, using strings to store digits to avoid the calculator rounding values >10^10. This allows for large numbers to be calculated while maintaining the exact integer value for applications involving modulo (or some other reason for unrounded large integer values)

To use: Input positive integer values in both inputs, string conversion happens automatically

• STRIADD (StrIntAdd)
  • Adds two positive integers, maintaining exact unrounded values
• STRIDIV (StrIntDiv)
  • Divides a positive integer by a positive integer, giving the exact quotient and remainder
  • NOTE: Divisor is not stored as a string, so divisor values greater than 10^10 will result in a rounded answer!
• STRIMULT (StrIntMult)
  • Multiplies two positive integers, maintaining unrounded values
• STRISUB (StrIntSub)
  • Subtracts two positive integers, maintaining unrounded values
  • NOTE: result cannot be negative, if the second input is larger than the first, the answer will be incorrect!

Currently a WIP/library project, uses graphx to draw images with RGB dithering.

Build Instructions: Follow the section Building Programs on the toolchain wiki.

• Launch the compiler terminal
  • Windows: Open cedev.bat in your CEdev folder
  • Linux/MacOS Launch a terminal session
• Navigate to ..../ce-programs/ti-canvas
• Run make
• Profit. (compiles to bin/CANVAS.8xp)