Merge #419

419: Round up when calculating register size in bytes r=therealprof a=Tiwalun

This fixes the issue in #418.

Co-authored-by: Dominik Boehi <dominik.boehi@gmail.com>

Author: bors[bot]

src/generate/peripheral.rs

@@ -323,13 +323,13 @@ impl FieldRegions {
         let mut indices = Vec::new();
 
         let field_start = field.offset;
-        let field_end = field_start + field.size / BITS_PER_BYTE;
+        let field_end = field_start + (field.size + BITS_PER_BYTE - 1) / BITS_PER_BYTE;
 
         // The region that we're going to insert
         let mut new_region = Region {
             fields: vec![field.clone()],
             offset: field.offset,
-            end: field.offset + field.size / BITS_PER_BYTE,
+            end: field_end,
             ident: None,
         };