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-rw-r--r--include/09.paging/deo1 (renamed from include/09.paging/paging00.c)0
-rw-r--r--include/09.paging/deo2 (renamed from include/09.paging/paging01.c)1
-rw-r--r--include/09.paging/deo31
-rw-r--r--include/09.paging/deo412
-rw-r--r--include/09.paging/deo5 (renamed from include/09.paging/paging03.c)0
-rw-r--r--include/09.paging/deo64
-rw-r--r--include/09.paging/deo77
-rw-r--r--include/09.paging/deo83
-rw-r--r--include/09.paging/deo9 (renamed from include/09.paging/paging05.c)0
-rw-r--r--include/09.paging/paging.c46
-rw-r--r--include/09.paging/paging02.c12
-rw-r--r--include/09.paging/paging04.c15
12 files changed, 73 insertions, 28 deletions
diff --git a/include/09.paging/paging00.c b/include/09.paging/deo1
index c45e28b..c45e28b 100644
--- a/include/09.paging/paging00.c
+++ b/include/09.paging/deo1
diff --git a/include/09.paging/paging01.c b/include/09.paging/deo2
index 0789338..b56d18e 100644
--- a/include/09.paging/paging01.c
+++ b/include/09.paging/deo2
@@ -1,3 +1,2 @@
extern void loadPageDirectory(uint32_t*);
extern void enablePaging();
-uint32_t page_directory[1024] __attribute__((aligned(4096)));
diff --git a/include/09.paging/deo3 b/include/09.paging/deo3
new file mode 100644
index 0000000..cbfbd25
--- /dev/null
+++ b/include/09.paging/deo3
@@ -0,0 +1 @@
+uint32_t page_directory[1024] __attribute__((aligned(4096)));
diff --git a/include/09.paging/deo4 b/include/09.paging/deo4
new file mode 100644
index 0000000..6905d35
--- /dev/null
+++ b/include/09.paging/deo4
@@ -0,0 +1,12 @@
+void set_pd()
+{
+ //set each entry to not present
+ for(size_t i=0;i<1024;i++)
+ {
+ // This sets the following flags to the pages:
+ // Supervisor: Only kernel-mode can access them
+ // Write Enabled: It can be both read from and written to
+ // Not Present: The page table is not present
+ page_directory[i] = 0x00000002;
+ }
+}
diff --git a/include/09.paging/paging03.c b/include/09.paging/deo5
index 57f997d..57f997d 100644
--- a/include/09.paging/paging03.c
+++ b/include/09.paging/deo5
diff --git a/include/09.paging/deo6 b/include/09.paging/deo6
new file mode 100644
index 0000000..4e670bb
--- /dev/null
+++ b/include/09.paging/deo6
@@ -0,0 +1,4 @@
+void set_pt(size_t num,uint32_t address)
+{
+ // holds the physical address where we want to start mapping these pages to.
+ // in this case, we want to map these pages to the very beginning of memory.
diff --git a/include/09.paging/deo7 b/include/09.paging/deo7
new file mode 100644
index 0000000..5898f28
--- /dev/null
+++ b/include/09.paging/deo7
@@ -0,0 +1,7 @@
+ //we will fill all 1024 entries in the table, mapping 4 megabytes
+ for(size_t i=0;i<1024;i++)
+ {
+ // As the address is page aligned, it will always leave 12 bits zeroed.
+ // Those bits are used by the attributes ;)
+ page_table[num][i] = (address + i * 0x1000) | 3; // attributes: supervisor level, read/write, present.
+ }
diff --git a/include/09.paging/deo8 b/include/09.paging/deo8
new file mode 100644
index 0000000..b842a0c
--- /dev/null
+++ b/include/09.paging/deo8
@@ -0,0 +1,3 @@
+ page_directory[num] = ((uint32_t)page_table[num]) | 3;
+ // attributes: supervisor level, read/write, present
+}
diff --git a/include/09.paging/paging05.c b/include/09.paging/deo9
index d99797b..d99797b 100644
--- a/include/09.paging/paging05.c
+++ b/include/09.paging/deo9
diff --git a/include/09.paging/paging.c b/include/09.paging/paging.c
new file mode 100644
index 0000000..f08530d
--- /dev/null
+++ b/include/09.paging/paging.c
@@ -0,0 +1,46 @@
+#include<types.h>
+
+extern void loadPageDirectory(uint32_t*);
+extern void enablePaging();
+
+uint32_t page_directory[1024] __attribute__((aligned(4096)));
+
+void set_pd()
+{
+ //set each entry to not present
+ for(size_t i=0;i<1024;i++)
+ {
+ // This sets the following flags to the pages:
+ // Supervisor: Only kernel-mode can access them
+ // Write Enabled: It can be both read from and written to
+ // Not Present: The page table is not present
+ page_directory[i] = 0x00000002;
+ }
+}
+
+uint32_t page_table[1024][1024] __attribute__((aligned(4096)));
+
+void set_pt(size_t num,uint32_t address)
+{
+ // holds the physical address where we want to start mapping these pages to.
+ // in this case, we want to map these pages to the very beginning of memory.
+
+ //we will fill all 1024 entries in the table, mapping 4 megabytes
+ for(size_t i=0;i<1024;i++)
+ {
+ // As the address is page aligned, it will always leave 12 bits zeroed.
+ // Those bits are used by the attributes ;)
+ page_table[num][i] = (address + i * 0x1000) | 3; // attributes: supervisor level, read/write, present.
+ }
+
+ page_directory[num] = ((uint32_t)page_table[num]) | 3;
+ // attributes: supervisor level, read/write, present
+}
+
+void set_paging()
+{
+ set_pd();
+ for(size_t i=0;i<1024;i++) set_pt(i,0x00400000 * i); // all 4GB mapped
+ loadPageDirectory(page_directory);
+ enablePaging();
+}
diff --git a/include/09.paging/paging02.c b/include/09.paging/paging02.c
deleted file mode 100644
index 8c00c89..0000000
--- a/include/09.paging/paging02.c
+++ /dev/null
@@ -1,12 +0,0 @@
-void set_pd()
-{
- //set each entry to not present
- for(size_t i=0;i<1024;i++)
- {
- // This sets the following flags to the pages:
- // Supervisor: Only kernel-mode can access them
- // Write Enabled: It can be both read from and written to
- // Not Present: The page table is not present
- page_directory[i] = 0x00000002;
- }
-}
diff --git a/include/09.paging/paging04.c b/include/09.paging/paging04.c
deleted file mode 100644
index ad7507f..0000000
--- a/include/09.paging/paging04.c
+++ /dev/null
@@ -1,15 +0,0 @@
-void set_pt(size_t num,uint32_t address)
-{
- // holds the physical address where we want to start mapping these pages to.
- // in this case, we want to map these pages to the very beginning of memory.
- //we will fill all 1024 entries in the table, mapping 4 megabytes
- for(size_t i=0;i<1024;i++)
- {
- // As the address is page aligned, it will always leave 12 bits zeroed.
- // Those bits are used by the attributes ;)
- page_table[num][i] = (address + i * 0x1000) | 3; // attributes: supervisor level, read/write, present.
- }
-
- page_directory[num] = ((uint32_t)page_table[num]) | 3;
- // attributes: supervisor level, read/write, present
-}