a lot of kernel work

1 files changed, 23 insertions, 0 deletions

diff --git a/kernel/idt.c b/kernel/idt.c
new file mode 100644
index 0000000..e1ff72f
--- /dev/null
+++ b/kernel/idt.c
@@ -0,0 +1,23 @@
+#include <stdint.h>
+#include <string.h>
+#include "idt.h"
+
+void idt_set_gate(uint8_t idx, uint32_t base, uint16_t sel, uint8_t flags)
+{
+    idt[idx].base_lo = base & 0xFFFF;
+    idt[idx].base_hi = base >> 16;
+    idt[idx].sel = sel;
+    idt[idx].zero = 0;
+    idt[idx].flags = flags;
+}
+
+void idt_init(void)
+{
+    printf("idt_init()");
+    idt_pt.limit = sizeof(idt) - 1;
+    idt_pt.base = (uint32_t)&idt;
+
+    memset(&idt, 0, sizeof(idt));
+
+    idt_flush((uint32_t)&idt_pt);
+}