Rudimentary interrupt handling.

1 files changed, 32 insertions, 0 deletions

diff --git a/kernel/idt.h b/kernel/idt.h
new file mode 100644
index 0000000..aafa477
--- /dev/null
+++ b/kernel/idt.h
@@ -0,0 +1,32 @@
+#ifndef IDT_H
+#define IDT_H
+
+#include "types.h"
+
+typedef struct {
+	uint16_t base_low;
+	uint16_t segment;
+	uint16_t flags;
+	uint16_t base_high;
+} __attribute__((packed)) idt_entry;
+
+typedef struct {
+	uint16_t limit;
+	idt_entry* base;
+} __attribute__((packed)) idt_ptr;
+
+#define idt_entry_init(b, s, f) { \
+	.base_low = (b & 0xffff), \
+	.base_high = (b >> 16 & 0xffff), \
+	.segment = (s), \
+	.flags = (f)}
+
+#define idt_entry_null { \
+	.base_low = 0, \
+	.base_high = 0, \
+	.segment = 0, \
+	.flags = 0}
+
+void idt_init();
+
+#endif