YREA-SLS/CHANGELOG.md

SLS Changelog

0.0.2-alpha

08 Dec 2025

• Added Rust Port
• Added Interpreter State Serialization to Rust port
  • Added #load <file> and #save <file> directives to the REPL
• Added Python Port
• Added Calculator app
  • Added sls_py.calc module
• Added RP2040 build target for the C implementation

0.0.1-alpha

01 Dec 2025

• Added executing a file
• Implemented the following builtin operators:
  • for
  • logb
  • max
  • min
  • rot
  • const
  • atan2
  • roll
  • while
  • type_of
  • eval
  • lambda
  • if
  • pick
  • dup
  • bitwise and
  • bitwise not
  • bitwise or
  • bitwise xor
  • boolean and
  • boolean not
  • boolean or
  • shl
  • shr
  • comparisons
  • ceil
  • floor
  • round
  • swap
  • seed
  • rand
  • acos
  • asin
  • atan
  • cos
  • ln
  • log
  • sin
  • sqrt
  • tan
  • abs
  • modulus
  • exponential
  • addition
  • subtraction
  • multiplication

SE Checkpoint 3

28 Nov 2025

github.com/SnowSE/final-project-KylerOlsen

Compare SE3250-Checkpoint2..SE3250-Checkpoint3

Report:

Since checkpoint 2, I completed token string parsing and started working on the REPL. The lexer and REPL are basically finished as much as I am going to do for this assignment. I did start to implement builtin functions and operators. Currently only depth, drop, and /

Plan:

By the final turn-in on December 6th, I plan on getting all arithmetic operations working. And the python and rust ports with help from AI.

Stuck:

I'm not really stuck on anything, but I am running out of time, plus I am worried about not having enough AI usage to do the ports. If I at least get the main structures of the ports, I hope it will be enough for me to finish.

SE Checkpoint 2

20 Nov 2025

github.com/SnowSE/final-project-KylerOlsen

Compare SE3250-Checkpoint1..SE3250-Checkpoint2

Report:

I completed my string type for the interpreter. floats, characters, identifiers, and boolean token lexing has been completed. integer tokens were working at checkpoint 1.

Plan:

By checkpoint 3 I plan to complete token string token parsing and basic arithmetic execution.

Stuck:

I'm not really stuck on anything, but I have been dropping things from the scope of this assignment. I do hope to add them when I have time in the future. These features moved to the backlog include:

• Unicode support
• Exponential literals
• Arrays and array functions
• Type tuples, function defs
• Structs, unions, etc.

SE Checkpoint 1

07 Nov 2025

intended user:
Programmers

detailed functional requirements:
A stack based language interpreter inspired by RPL, C, Rust, and Uiua (sls.purplecello.org)

motivation for wanting to work on the project:
It is cool, and I have had this idea for a while and learning new languages this semester has given me more ideas and motivation for this.

motivation for language selection:
C is a lower level language that can run on embedded systems and is well suited for writing language interpreters like Python and Lua.

non-functional requirements / constraints:
Efficient enough for use on a modern micro controller (ie. Raspberry Pi Pico, ESP32)