set up bochs for debugging and started working on interrupts.

4 files changed, 34 insertions, 10 deletions

diff --git a/src/kernel/gdt/gdt.c b/src/kernel/gdt.c
index 4886dc3..406b40c 100644
--- a/src/kernel/gdt/gdt.c
+++ b/src/kernel/gdt.c
@@ -1,19 +1,15 @@
 #include "gdt.h"
 #include <stdint.h>
 
-GDT_t *table = 0x0;
+GDT_t table = 0x0;
 extern GDTR_t gdtr;
 void get_gdtr() {
     uint32_t base = 0x0000;
 
-    *table = (GDT_t){
-        // NULL
-        make_descriptor(0, 0, 0),
-        // Code segment, read
-        make_descriptor(base, 0x8FFFF, make_code(0, 0, 1)),
-        // Data segment, read write
-        make_descriptor(base, 0x8FFFF, make_data(0, 0, 1)),
-    };
+    table[0] = make_descriptor(0, 0, 0);
+    table[1] = make_descriptor(base, 0x3FFFF, make_code(0, 0, 1));
+    table[2] = make_descriptor(base, 0x3FFFF, make_data(0, 0, 1));
+
     gdtr.size = sizeof(Segment_Descriptor_t) * 3 - 1;
     gdtr.offset = base;
 }
diff --git a/src/kernel/gdt/compile_flags.txt b/src/kernel/gdt/compile_flags.txt
deleted file mode 100644
index 2af49c7..0000000
--- a/src/kernel/gdt/compile_flags.txt
+++ /dev/null
@@ -1 +0,0 @@
--I../../include/
diff --git a/src/kernel/idt.c b/src/kernel/idt.c
new file mode 100644
index 0000000..f3fea4f
--- /dev/null
+++ b/src/kernel/idt.c
@@ -0,0 +1,28 @@
+#include "idt.h"
+#include "gdt.h"
+#include <stdint.h>
+
+IDT_t idt = (IDT_t)0x7fffe;
+extern GDTR_t idtr;
+
+void get_idtr() {
+    int base = 0x7fffe;
+    uint8_t code_seg = (0b1000 << 3) | 0b000;
+
+    // idtr.size = sizeof(Gate_Descriptor_t) * n - 1;
+    idtr.size = 0;
+    idtr.offset = base;
+}
+
+Gate_Descriptor_t make_gate(uint32_t offset, uint8_t segment_selector,
+                            uint8_t type) {
+    Gate_Descriptor_t ret = (Gate_Descriptor_t){
+        .offset_low = offset,
+        .reserved = 0,
+        .attrs = (0b1000 << 4) | type,
+        .offset_high = offset >> 16,
+        .segment_selector = segment_selector,
+    };
+
+    return ret;
+}
diff --git a/src/kernel/keyboard/pic.c b/src/kernel/keyboard/pic.c
new file mode 100644
index 0000000..0c81629
--- /dev/null
+++ b/src/kernel/keyboard/pic.c
@@ -0,0 +1 @@
+#include "asm.h"