Reset src to master to be able to follow step-by-stp

src/memory/paging/entry.rs

@@ -1,46 +0,0 @@
-use memory::Frame;
-use memory::paging::PhysicalAddress;
-
-pub struct Entry(u64);
-
-impl Entry {
-    pub fn is_unused(&self) -> bool {
-        self.0 == 0
-    }
-
-    pub fn set_unused(&mut self) {
-        self.0 = 0;
-    }
-
-    pub fn flags(&self) -> EntryFlags {
-        EntryFlags::from_bits_truncate(self.0)
-    }
-
-    pub fn pointed_frame(&self) -> Option<Frame> {
-        if self.flags().contains(PRESENT) {
-            Some(Frame::containing_address(self.0 as usize & 0x000fffff_fffff000))
-        } else {
-            None
-        }
-    }
-
-    pub fn set(&mut self, frame: Frame, flags: EntryFlags) {
-        assert!(frame.start_address() & !0x000fffff_fffff000 == 0);
-        self.0 = (frame.start_address() as u64) | flags.bits();
-    }
-}
-
-bitflags! {
-    flags EntryFlags: u64 {
-        const PRESENT =         1 << 0,
-        const WRITABLE =        1 << 1,
-        const USER_ACCESSIBLE = 1 << 2,
-        const WRITE_THROUGH =   1 << 3,
-        const NO_CACHE =        1 << 4,
-        const ACCESSED =        1 << 5,
-        const DIRTY =           1 << 6,
-        const HUGE_PAGE =       1 << 7,
-        const GLOBAL =          1 << 8,
-        const NO_EXECUTE =      1 << 63,
-    }
-}