Added BITS_PER_BYTE constant

Author: kjetilkjeka

src/generate.rs

@@ -9,7 +9,7 @@ use syn;
 use syn::{Ident, Lit};
 
 use errors::*;
-use util::{self, ToSanitizedSnakeCase, ToSanitizedUpperCase, U32Ext};
+use util::{self, ToSanitizedSnakeCase, ToSanitizedUpperCase, U32Ext, BITS_PER_BYTE};
 use Target;
 
 /// Whole device generation

src/util.rs

@@ -9,6 +9,8 @@ use syn::{Ident, IntTy, Lit};
 
 use errors::*;
 
+pub const BITS_PER_BYTE: u32 = 8;
+
 /// List of chars that some vendors use in their peripheral/field names but
 /// that are not valid in Rust ident
 const BLACKLIST_CHARS: &'static [char] = &['(', ')', '[', ']'];