From 633e438712883bda5dabae706d91387c40fa81ed Mon Sep 17 00:00:00 2001
From: Maxwell Jeffress <maxwelljeffress@proton.me>
Date: Thu, 11 Dec 2025 14:24:11 +1100
Subject: [PATCH] Update README, new tests

---
 README.md               |  8 ++++----
 tests/function.grnd     | 13 +++++++++++++
 tests/recursivefib.grnd | 24 ++++++++++++++++++++++++
 tests/uhoh.grnd         |  8 ++++++--
 4 files changed, 47 insertions(+), 6 deletions(-)
 create mode 100644 tests/recursivefib.grnd

diff --git a/README.md b/README.md
index fabf90a..7cd9ef5 100644
--- a/README.md
+++ b/README.md
@@ -76,12 +76,12 @@ build
     - [x] Maths
     - [x] Comparisions
     - [ ] Type conversions
-    - [ ] Functions
+    - [x] Functions
         - [x] Define functions
         - [x] Call functions
-        - [ ] Return values (type checked)
-        - [ ] Arguments for functions
-        - [ ] Jumping within functions
+        - [x] Return values (type checked)
+        - [x] Arguments for functions
+        - [x] Jumping within functions
     - [ ] Custom data structures
     - [ ] Working with external libraries
 
diff --git a/tests/function.grnd b/tests/function.grnd
index c7a01fb..e61f5ce 100644
--- a/tests/function.grnd
+++ b/tests/function.grnd
@@ -2,5 +2,18 @@ fun !dingus -string
 return "dingle"
 endfun
 
+fun !jumpy
+    set &x 0
+    @loop
+    equal $x 10 &cond
+    if $cond %endloop
+    add 1 $x &x
+    println $x
+    jump %loop
+    @endloop
+endfun
+
 call !dingus &e
 println $e
+
+call !jumpy &x
diff --git a/tests/recursivefib.grnd b/tests/recursivefib.grnd
new file mode 100644
index 0000000..df24554
--- /dev/null
+++ b/tests/recursivefib.grnd
@@ -0,0 +1,24 @@
+fun !fib -int -int &n -function &fib
+    # Base case: fib(0) = 0, fib(1) = 1
+    lesser $n 2 &isBase
+    if $isBase %baseCase
+    
+    # Recursive case: fib(n) = fib(n-1) + fib(n-2)
+    subtract $n 1 &nMinus1
+    call !fib $nMinus1 $fib &fib1
+    
+    subtract $n 2 &nMinus2
+    call !fib $nMinus2 $fib &fib2
+    
+    add $fib1 $fib2 &result
+    return $result
+    
+    @baseCase
+    return $n
+endfun
+
+# Main program
+println "Computing fib(30) recursively..."
+call !fib 30 $fib &answer
+println "Result:" $answer
+end
diff --git a/tests/uhoh.grnd b/tests/uhoh.grnd
index 781fde2..200ebeb 100644
--- a/tests/uhoh.grnd
+++ b/tests/uhoh.grnd
@@ -1,3 +1,7 @@
-fun !dingle -int -function &in
-    call !in &tmp
+fun !dingle -int -function &in -int &counter
+    add 1 $counter &counter
+    println "We are" $counter "iterations deep"
+    call !in $in $counter &out
 endfun
+
+call !dingle $dingle 0 &out