From 900b594039c416b79045a56d55a7485f1141443f Mon Sep 17 00:00:00 2001
From: Corwin Kuiper <corwin@kuiper.dev>
Date: Sun, 6 Jun 2021 18:27:15 +0100
Subject: [PATCH] use easily optimisable division for truncate

---
 agb/src/number.rs | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/agb/src/number.rs b/agb/src/number.rs
index 13fbbdf8..c710b983 100644
--- a/agb/src/number.rs
+++ b/agb/src/number.rs
@@ -222,14 +222,7 @@ impl<I: FixedWidthUnsignedInteger, const N: usize> Num<I, N> {
     }
 
     pub fn trunc(&self) -> I {
-        let fractional_part = self.0 & ((I::one() << N) - I::one());
-        let self_as_int = self.0 >> N;
-
-        if self_as_int < I::zero() && fractional_part != I::zero() {
-            self_as_int + I::one()
-        } else {
-            self_as_int
-        }
+        self.0 / (I::one() << N)
     }
 
     pub fn rem_euclid(&self, rhs: Self) -> Self {