Here are some Nandlang examples.
Demonstrates the usage of an array to simulate a block of memory. Included are indexing functions. The indexN(array, index : ret) function takes in an array that is 2^N bytes and an index that is N bytes, and returns the value at that position. The setindexN(array, index, value : ret) function takes in an array that is 2^N bytes, an index that is N bytes, and a 1 byte value, and returns the array after the byte at the given index is set to value. There is also a zero function that initializes an block of memory to zeroes.
The example itself demonstrates how to ask the user to input a string, and then prints that string but reversed (which is why an array is required).
Demonstrates basic variable assignment and output.
A BrainF#$! intepreter. Uses for loops, recursion, and memory management.
Prints out the Fibonacci sequence. Demonstrates recursive functions.
Basic FuzzBuzz example. Also demonstrates recursion.
Very basic "Hello, World!" example. Shows how to print characters using putc().
Demonstrates how to take user input and print it back out using functions such as iogood(), getc(), and putc().
Shows how to implement basic math functions, such as subtraction, division, modulo, multiplication, and addition.
Simple test that I use to make sure I didn't mess up any stack code while programming.