Added IDT c code

src/idt.c

+#include "idt.h"
+
+struct idtr {
+  uint16_t limit;
+  uint32_t base;
+};
+
+static struct idt_desc _idt [MAX_IDT_INT];
+static struct idtr _idtr;
+
+static void idt_install () {
+  //TODO: VOODOO MAGIC
+}
+static void _cdecl default_handler () {
+  //DEBUG OUTPUT MAYBE?
+  for(;;);
+}
+
+idt_descriptor* get_ir (uint32_t i) {
+  if (i>MAX_IDT_INT)
+    return 0;
+  return &_idt[i];
+}
+int install_ir (uint32_t i, uint16_t flags, uint16_t sel, IRQ_HANDLER irq) {
+	if (i>MAX_IDT_INT)
+		return 0;
+	if (!irq)
+		return 0;
+	uint64_t uiBase = (uint64_t)&(*irq);
+	_idt[i].low_base  = uint16_t(uiBase & 0xffff);
+	_idt[i].high_base = uint16_t((uiBase >> 16) & 0xffff);
+	_idt[i].reserved  = 0;
+	_idt[i].flags	  = uint8_t(flags);
+	_idt[i].code_sel  = sel;
+	return	0;
+}
+int idt_init (uint16_t code_sel) {
+	_idtr.limit = sizeof (struct idt_desc) * MAX_IDT_INT -1;
+	_idtr.base  = (uint32_t)&_idt[0];
+	memset ((void*)&_idt[0], 0, sizeof (idt_desc) * MAX_IDT_INT-1);
+	for (int i=0; i<MAX_IDT_INT; i++)
+		install_ir (i, IDT_PR|IDT_32,code_sel,(IRQ_HANDLER)default_handler);
+	idt_install ();
+	return 0;
+}

src/idt.h

+#ifndef _IDT_INC
+#define _IDT_INC
+
+#include <stdint.h>
+
+#define MAX_IDT_INT 256
+
+#define IDT_16 0x06
+#define IDT_32 0x0E
+#define IDT_R1 0x40
+#define IDT_R2 0x20
+#define IDT_R3 0x60
+#define IDT_PR 0x80
+
+//voodoo magic. find out what it does.
+typedef void (_cdecl *IRQ_HANDLER)(void);
+
+struct idt_desc{
+	uint16_t low_base;
+	uint16_t code_sel;
+	uint8_t	 reserved;
+	uint8_t	 flags;
+	uint16_t high_base;
+};
+
+extern idt_desc* get_ir (uint32_t i);
+extern int install_ir (uint32_t i, uint16_t flags, uint16_c code_sel, IRQ_HANDLER);
+extern int idt_init (uint16_t code_sel);
+
+#endif