From a6c1174b3fb598cd59c1668cfc4d4746ab688079 Mon Sep 17 00:00:00 2001
From: aqua <aqua@iserlohn-fortress.net>
Date: Fri, 1 Apr 2022 11:38:00 +0300
Subject: lidt

---
 arch/i686/include/gdt.h         |  5 -----
 arch/i686/include/idt.h         | 18 ++++++++++++++++++
 arch/i686/include/sys/control.h |  9 +++++++++
 3 files changed, 27 insertions(+), 5 deletions(-)
 create mode 100644 arch/i686/include/idt.h
 create mode 100644 arch/i686/include/sys/control.h

(limited to 'arch/i686/include')

diff --git a/arch/i686/include/gdt.h b/arch/i686/include/gdt.h
index 6badf84..9148c3d 100644
--- a/arch/i686/include/gdt.h
+++ b/arch/i686/include/gdt.h
@@ -47,11 +47,6 @@ _Static_assert(sizeof(struct SegmentDescriptor_t) == 8);
 
 void SegmentDescriptor(struct SegmentDescriptor_t *self, unsigned base, unsigned limit, uint8_t access);
 
-struct __attribute__((packed)) Pointer {
-  uint16_t limit;
-  uint32_t base;
-};
-
 void gdt_install();
 
 enum SegmentIndex {
diff --git a/arch/i686/include/idt.h b/arch/i686/include/idt.h
new file mode 100644
index 0000000..22dc6de
--- /dev/null
+++ b/arch/i686/include/idt.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <stdint.h>
+
+struct interrupt_frame {
+  uint32_t ip;
+  uint32_t cs;
+  uint32_t flags;
+  uint32_t sp;
+  uint32_t ss;
+};
+
+void abort_handler(struct interrupt_frame *frame);
+void interrupt_handler(struct interrupt_frame *frame);
+void interrupt_handler_e(struct interrupt_frame *frame, uint32_t error);
+void syscall_handler(struct interrupt_frame *frame);
+
+void idt_install();
diff --git a/arch/i686/include/sys/control.h b/arch/i686/include/sys/control.h
new file mode 100644
index 0000000..a40a67f
--- /dev/null
+++ b/arch/i686/include/sys/control.h
@@ -0,0 +1,9 @@
+#pragma once
+
+static void
+abort()
+{
+  asm volatile(R"(cli
+h: hlt
+jmp h)");
+}
-- 
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