diff --git a/src/cmp.rs b/src/cmp.rs
index 46607b9..5e60d1d 100644
--- a/src/cmp.rs
+++ b/src/cmp.rs
@@ -396,11 +396,13 @@ macro_rules! fixed_cmp_all {
         fixed_cmp_int! { $Fix($NBits), i32 }
         fixed_cmp_int! { $Fix($NBits), i64 }
         fixed_cmp_int! { $Fix($NBits), i128 }
+        fixed_cmp_int! { $Fix($NBits), isize }
         fixed_cmp_int! { $Fix($NBits), u8 }
         fixed_cmp_int! { $Fix($NBits), u16 }
         fixed_cmp_int! { $Fix($NBits), u32 }
         fixed_cmp_int! { $Fix($NBits), u64 }
         fixed_cmp_int! { $Fix($NBits), u128 }
+        fixed_cmp_int! { $Fix($NBits), usize }
         #[cfg(feature = "f16")]
         fixed_cmp_float! { $Fix($NBits), f16 }
         fixed_cmp_float! { $Fix($NBits), f32 }
diff --git a/src/traits.rs b/src/traits.rs
index 67d5604..a9d548d 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -45,6 +45,11 @@ where
     Self: Not<Output = Self> + Shl<u32, Output = Self> + Shr<u32, Output = Self>,
     Self: AddAssign + SubAssign + MulAssign + DivAssign,
     Self: BitAndAssign + BitOrAssign + BitXorAssign + ShlAssign<u32> + ShrAssign<u32>,
+    Self: PartialOrd<i8> + PartialOrd<i16> + PartialOrd<i32>,
+    Self: PartialOrd<i64> + PartialOrd<i128> + PartialOrd<isize>,
+    Self: PartialOrd<u8> + PartialOrd<u16> + PartialOrd<u32>,
+    Self: PartialOrd<u64> + PartialOrd<u128> + PartialOrd<usize>,
+    Self: PartialOrd<f32> + PartialOrd<f64>,
 {
     /// The primitive integer underlying type.
     type Bits;