From 96b0dc0c66bf7dfc860e78775ee8962a4ee32391 Mon Sep 17 00:00:00 2001
From: Philipp Oppermann <dev@phil-opp.com>
Date: Tue, 8 Dec 2015 22:47:39 +0100
Subject: [PATCH] Model page tables

---
 src/memory/paging/mod.rs   |  1 +
 src/memory/paging/table.rs | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 src/memory/paging/table.rs

diff --git a/src/memory/paging/mod.rs b/src/memory/paging/mod.rs
index d0e7145f..53ad489b 100644
--- a/src/memory/paging/mod.rs
+++ b/src/memory/paging/mod.rs
@@ -1,4 +1,5 @@
 mod entry;
+mod table;
 
 const ENTRY_COUNT: usize = 512;
 
diff --git a/src/memory/paging/table.rs b/src/memory/paging/table.rs
new file mode 100644
index 00000000..0a1935e2
--- /dev/null
+++ b/src/memory/paging/table.rs
@@ -0,0 +1,29 @@
+use memory::paging::entry::*;
+use memory::paging::ENTRY_COUNT;
+use core::ops::{Index, IndexMut};
+
+pub struct Table {
+    entries: [Entry; ENTRY_COUNT],
+}
+
+impl Table {
+    pub fn zero(&mut self) {
+        for entry in self.entries.iter_mut() {
+            entry.set_unused();
+        }
+    }
+}
+
+impl Index<usize> for Table {
+    type Output = Entry;
+
+    fn index(&self, index: usize) -> &Entry {
+        &self.entries[index]
+    }
+}
+
+impl IndexMut<usize> for Table {
+    fn index_mut(&mut self, index: usize) -> &mut Entry {
+        &mut self.entries[index]
+    }
+}