TIS-100 puzzles

binomial.lua

Calculate binomial coefficients

collatz.lua

Calculate the length of the Collatz sequence for a given number.
I think the description inside the puzzle should be clear enough.
If not, there is some background on this here:
https://en.wikipedia.org/wiki/Collatz_conjecture

gcd.lua

Calculate greatest common divisor of two numbers

isqrt.lua

Calculate the square root of a number, rounded down to an integer