include/setup.sh

11 files changed, 58 insertions, 14 deletions

diff --git a/include/03.gdt/gdt00.c b/include/03.gdt/deo1
index c45e28b..c45e28b 100644
--- a/include/03.gdt/gdt00.c
+++ b/include/03.gdt/deo1
diff --git a/include/03.gdt/gdt01.c b/include/03.gdt/deo2
index cbc5e1d..cbc5e1d 100644
--- a/include/03.gdt/gdt01.c
+++ b/include/03.gdt/deo2
diff --git a/include/03.gdt/gdt02.c b/include/03.gdt/deo3
index e708661..e708661 100644
--- a/include/03.gdt/gdt02.c
+++ b/include/03.gdt/deo3
diff --git a/include/03.gdt/deo4 b/include/03.gdt/deo4
new file mode 100644
index 0000000..1abf809
--- /dev/null
+++ b/include/03.gdt/deo4
@@ -0,0 +1 @@
+extern void load_gdt(struct gdt_pointer *gdtp);
diff --git a/include/03.gdt/gdt03.c b/include/03.gdt/deo5
index 94c8cd3..ba7c6e2 100644
--- a/include/03.gdt/gdt03.c
+++ b/include/03.gdt/deo5
@@ -1,3 +1,2 @@
-extern void load_gdt(struct gdt_pointer *gdtp);
 struct gdt_entry gdt[5];
 struct gdt_pointer gdtp;
diff --git a/include/03.gdt/gdt04.c b/include/03.gdt/deo6
index 8d6a1f0..8d6a1f0 100644
--- a/include/03.gdt/gdt04.c
+++ b/include/03.gdt/deo6
diff --git a/include/03.gdt/deo7 b/include/03.gdt/deo7
new file mode 100644
index 0000000..d69d009
--- /dev/null
+++ b/include/03.gdt/deo7
@@ -0,0 +1,4 @@
+void init_gdt_table()
+{
+    gdtp.size=sizeof(gdt)-1;
+    gdtp.offset=(uint32_t)&gdt;
diff --git a/include/03.gdt/deo8 b/include/03.gdt/deo8
new file mode 100644
index 0000000..a122d84
--- /dev/null
+++ b/include/03.gdt/deo8
@@ -0,0 +1,5 @@
+    init_gdt_entry(0,0,0,0,0);                              // null segment
+    init_gdt_entry(1,0xffffffff,0,0b10011010,0b11001111);   // code segment
+    init_gdt_entry(2,0xffffffff,0,0b10010010,0b11001111);   // data segment
+    init_gdt_entry(3,0xffffffff,0,0b11111010,0b11001111);   // user mode code segment
+    init_gdt_entry(4,0xffffffff,0,0b11110010,0b11001111);   // user mode data segment
diff --git a/include/03.gdt/deo9 b/include/03.gdt/deo9
new file mode 100644
index 0000000..89736a5
--- /dev/null
+++ b/include/03.gdt/deo9
@@ -0,0 +1,2 @@
+    load_gdt(&gdtp);
+}
diff --git a/include/03.gdt/gdt.c b/include/03.gdt/gdt.c
new file mode 100644
index 0000000..e3d2b4c
--- /dev/null
+++ b/include/03.gdt/gdt.c
@@ -0,0 +1,46 @@
+#include<types.h>
+
+struct gdt_entry
+{
+    uint16_t limit;
+    uint16_t base1;
+    uint8_t base2;
+    uint8_t access;
+    uint8_t limit_flags;
+    uint8_t base3;
+} __attribute__((packed));
+
+struct gdt_pointer
+{
+    uint16_t size;
+    uint32_t offset;
+} __attribute__((packed));
+
+extern void load_gdt(struct gdt_pointer *gdtp);
+
+struct gdt_entry gdt[5];
+struct gdt_pointer gdtp;
+
+void init_gdt_entry(size_t num, uint32_t limit, uint32_t base, uint8_t access, uint8_t limit_flags)
+{
+    gdt[num].limit=limit;
+    gdt[num].base1=(base & 0xffff);
+    gdt[num].base2=(base & 0xff0000) >> 16;
+    gdt[num].access=access;
+    gdt[num].limit_flags=limit_flags;
+    gdt[num].base3=(base & 0xff000000) >> 24;
+}
+
+void init_gdt_table()
+{
+    gdtp.size=sizeof(gdt)-1;
+    gdtp.offset=(uint32_t)&gdt;
+
+    init_gdt_entry(0,0,0,0,0);                              // null segment
+    init_gdt_entry(1,0xffffffff,0,0b10011010,0b11001111);   // code segment
+    init_gdt_entry(2,0xffffffff,0,0b10010010,0b11001111);   // data segment
+    init_gdt_entry(3,0xffffffff,0,0b11111010,0b11001111);   // user mode code segment
+    init_gdt_entry(4,0xffffffff,0,0b11110010,0b11001111);   // user mode data segment
+
+    load_gdt(&gdtp);
+}
diff --git a/include/03.gdt/gdt05.c b/include/03.gdt/gdt05.c
deleted file mode 100644
index d525a13..0000000
--- a/include/03.gdt/gdt05.c
+++ /dev/null
@@ -1,13 +0,0 @@
-void init_gdt_table()
-{
-    gdtp.size=sizeof(gdt)-1;
-    gdtp.offset=(uint32_t)&gdt;
-
-    init_gdt_entry(0,0,0,0,0);					// null segment
-    init_gdt_entry(1,0xffffffff,0,0b10011010,0b11001111);	// code segment
-    init_gdt_entry(2,0xffffffff,0,0b10010010,0b11001111);	// data segment
-    init_gdt_entry(3,0xffffffff,0,0b11111010,0b11001111);	// user mode code segment
-    init_gdt_entry(4,0xffffffff,0,0b11110010,0b11001111);	// user mode data segment
-
-    load_gdt(&gdtp);
-}