From ef1012f3b7e7bf974a5d24408d719ed8769c8425 Mon Sep 17 00:00:00 2001
From: Braiden Vasco <braiden-vasco@users.noreply.github.com>
Date: Sat, 4 Nov 2017 04:19:32 +0000
Subject: [PATCH] Add file "arch/paging.c"

---
 arch/Makefile |  1 +
 arch/paging.c | 22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 arch/paging.c

diff --git a/arch/Makefile b/arch/Makefile
index 8c2e73e..d624d62 100644
--- a/arch/Makefile
+++ b/arch/Makefile
@@ -10,6 +10,7 @@ OBJS += main.c.o
 OBJS += logger.c.o console.c.o kprintf.c.o
 OBJS += multiboot.c.o
 OBJS += memory.c.o
+OBJS += paging.c.o
 
 OBJS += protected.c.o protected.asm.cpp.o
 OBJS += exception.c.o exception.asm.cpp.o
diff --git a/arch/paging.c b/arch/paging.c
new file mode 100644
index 0000000..074502d
--- /dev/null
+++ b/arch/paging.c
@@ -0,0 +1,22 @@
+#define PAGES_PER_TABLE 1024
+#define TABLES_PER_DIR  1024
+
+struct page {
+    unsigned int present  : 1;
+    unsigned int rw       : 1;
+    unsigned int user     : 1;
+    unsigned int accessed : 1;
+    unsigned int dirty    : 1;
+    unsigned int unused   : 7;
+    unsigned int frame    : 20;
+};
+
+struct page_table {
+    struct page pages[PAGES_PER_TABLE];
+};
+
+struct page_dir {
+    struct page_table *tables[TABLES_PER_DIR];
+    unsigned int tables_phys[TABLES_PER_DIR];
+    unsigned int phys;
+};