random shit

1 files changed, 12 insertions, 17 deletions

diff --git a/src/kernel/idt.c b/src/kernel/idt.c
index f3fea4f..2805889 100644
--- a/src/kernel/idt.c
+++ b/src/kernel/idt.c
@@ -2,27 +2,22 @@
 #include "gdt.h"
 #include <stdint.h>
 
-IDT_t idt = (IDT_t)0x7fffe;
+static Gate_Descriptor_t idt[256];
 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;
+    idtr.offset = (uintptr_t)&idt[0];
+    idtr.size = sizeof(Gate_Descriptor_t) * 256 - 1;
+    for (uint8_t vec = 0; vec < 32; vec++) {
+        make_gate(stub_table[vec], 0x8E, vec);
+    }
 }
 
-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,
-    };
+void make_gate(uint32_t offset, uint8_t attrs, uint8_t vec) {
+    Gate_Descriptor_t *descriptor = &idt[vec];
 
-    return ret;
+    descriptor->offset_low = offset & 0xFFFF;
+    descriptor->attrs = (0b1000 << 4) | attrs;
+    descriptor->offset_high = offset >> 16, descriptor->segment_selector = 0x08;
+    descriptor->reserved = 0;
 }