diff options
Diffstat (limited to 'src/codegen/bitfield_unit.rs')
-rw-r--r-- | src/codegen/bitfield_unit.rs | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/src/codegen/bitfield_unit.rs b/src/codegen/bitfield_unit.rs deleted file mode 100644 index 73ec2bd6..00000000 --- a/src/codegen/bitfield_unit.rs +++ /dev/null @@ -1,102 +0,0 @@ -#[repr(C)] -#[derive(Copy, Clone, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)] -pub struct __BindgenBitfieldUnit<Storage> { - storage: Storage, -} - -impl<Storage> __BindgenBitfieldUnit<Storage> { - #[inline] - pub const fn new(storage: Storage) -> Self { - Self { storage } - } -} - -impl<Storage> __BindgenBitfieldUnit<Storage> -where - Storage: AsRef<[u8]> + AsMut<[u8]>, -{ - #[inline] - pub fn get_bit(&self, index: usize) -> bool { - debug_assert!(index / 8 < self.storage.as_ref().len()); - - let byte_index = index / 8; - let byte = self.storage.as_ref()[byte_index]; - - let bit_index = if cfg!(target_endian = "big") { - 7 - (index % 8) - } else { - index % 8 - }; - - let mask = 1 << bit_index; - - byte & mask == mask - } - - #[inline] - pub fn set_bit(&mut self, index: usize, val: bool) { - debug_assert!(index / 8 < self.storage.as_ref().len()); - - let byte_index = index / 8; - let byte = &mut self.storage.as_mut()[byte_index]; - - let bit_index = if cfg!(target_endian = "big") { - 7 - (index % 8) - } else { - index % 8 - }; - - let mask = 1 << bit_index; - if val { - *byte |= mask; - } else { - *byte &= !mask; - } - } - - #[inline] - pub fn get(&self, bit_offset: usize, bit_width: u8) -> u64 { - debug_assert!(bit_width <= 64); - debug_assert!(bit_offset / 8 < self.storage.as_ref().len()); - debug_assert!( - (bit_offset + (bit_width as usize)) / 8 <= - self.storage.as_ref().len() - ); - - let mut val = 0; - - for i in 0..(bit_width as usize) { - if self.get_bit(i + bit_offset) { - let index = if cfg!(target_endian = "big") { - bit_width as usize - 1 - i - } else { - i - }; - val |= 1 << index; - } - } - - val - } - - #[inline] - pub fn set(&mut self, bit_offset: usize, bit_width: u8, val: u64) { - debug_assert!(bit_width <= 64); - debug_assert!(bit_offset / 8 < self.storage.as_ref().len()); - debug_assert!( - (bit_offset + (bit_width as usize)) / 8 <= - self.storage.as_ref().len() - ); - - for i in 0..(bit_width as usize) { - let mask = 1 << i; - let val_bit_is_set = val & mask == mask; - let index = if cfg!(target_endian = "big") { - bit_width as usize - 1 - i - } else { - i - }; - self.set_bit(index + bit_offset, val_bit_is_set); - } - } -} |