A update

idt.asm

@@ -0,0 +1,40 @@
+[bits 32]
+global idt_load
+global common_isr_stub
+
+extern isr_handler
+extern _push_regs
+extern _pop_regs
+
+idt_load:
+    mov eax, [esp + 4]
+    lidt [eax]
+    ret
+    
+common_isr_stub:
+    call _push_regs    ; Push all general-purpose registers
+    push ds
+    push es
+    push fs
+    push gs
+
+    mov ax, 0x10       ; Load kernel data segment
+    mov ds, ax
+    mov es, ax
+    mov fs, ax
+    mov gs, ax
+
+    push esp           ; Pass pointer to the register state
+    call isr_handler   ; Call your C ISR handler
+
+    add esp, 4         ; Clean up stack from push esp
+    pop gs
+    pop fs
+    pop es
+    pop ds
+    
+    call _pop_regs     ; restore all general-purpose registers
+    
+    add esp, 8         ; Remove int_no and err_code
+    sti
+    iret