diff --git a/src/library/exec.rs b/src/library/exec.rs
index b2590bd..17aaffe 100644
--- a/src/library/exec.rs
+++ b/src/library/exec.rs
@@ -258,12 +258,12 @@ impl Lib {
                 ExecStep::Call(site) => {
                     #[cfg(feature = "log")]
                     eprintln!("{d}calling{z} {m}{site}{z}");
-                    return Jump::Instr(site.into());
+                    return Jump::Instr(site);
                 }
                 ExecStep::Ret(site) => {
                     #[cfg(feature = "log")]
                     eprintln!("{d}returning to{z} {m}{site}{z}");
-                    return Jump::Next(site.into());
+                    return Jump::Next(site);
                 }
             }
         }
diff --git a/src/library/lib.rs b/src/library/lib.rs
index 532dc78..01aad71 100644
--- a/src/library/lib.rs
+++ b/src/library/lib.rs
@@ -134,7 +134,7 @@ impl Display for Lib {
         writeln!(f, "ISAE:  {}", self.isae_string())?;
         writeln!(f, "CODE: {:x}", self.code)?;
         writeln!(f, "DATA: {:x}", self.data)?;
-        if self.libs.len() > 0 {
+        if !self.libs.is_empty() {
             writeln!(
                 f,
                 "LIBS: {:8}",
diff --git a/src/library/marshaller.rs b/src/library/marshaller.rs
index eb8abd0..2ad30b5 100644
--- a/src/library/marshaller.rs
+++ b/src/library/marshaller.rs
@@ -194,7 +194,7 @@ where
     fn write(&mut self, value: u32, bit_count: u5) -> Result<(), CodeEofError> {
         let mut cnt = bit_count.to_u8();
         let value = ((value as u64) << (self.bit_pos.to_u8())).to_le_bytes();
-        let n_bytes = (cnt + self.bit_pos.to_u8() + 7) / 8;
+        let n_bytes = (cnt + self.bit_pos.to_u8()).div_ceil(8);
         for i in 0..n_bytes {
             if self.bytecode.as_ref().len() >= u16::MAX as usize {
                 return Err(CodeEofError);