... I wasn't actually calling the right generator

simulator/src/main.rs

@@ -1,4 +1,5 @@
 use board::Board;
+use pico_rng::PicoRng;
 use ruleset::Ruleset;
 use seen::Seen;
 
@@ -6,12 +7,19 @@ use crate::smart_dealer::Deal;
 
 mod board;
 mod ruleset;
+mod pico_rng;
 mod seen;
 mod smart_dealer;
 mod zobrist;
 
 
 fn main() {
+    let mut rng = PicoRng::srand(0x20000);
+    for _ in 0..10 { 
+        println!("{}", rng.rnd(0x10000));
+    }
+    return;
+
     let ruleset = Ruleset { 
         n_slots: 11, 
         n_suits: 5, 

simulator/src/pico_rng.rs

@@ -0,0 +1,26 @@
+pub struct PicoRng {
+    hi: u32,
+    lo: u32
+}
+
+impl PicoRng {
+    // https://www.lexaloffle.com/bbs/?tid=51113
+    pub fn srand(seed: u32) -> PicoRng {
+        let mut rng = if seed == 0 {
+            PicoRng { hi: 0x60009755, lo: 0xdeadbeef }
+        } else {
+            PicoRng { hi: seed ^ 0xbead29ba, lo: seed }
+        };
+        for _ in 0..0x20 {
+            rng.rnd(0x10000);
+        }
+        return rng
+    }
+
+    pub fn rnd(&mut self, n: u32) -> u32 {
+        self.hi = self.hi.rotate_left(0x10).wrapping_add(self.lo);
+        self.lo += self.hi;
+        return self.hi % n
+
+    }
+}