1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86_64/pre/src/kernel/cpu/if.cpp b/arch/x86_64/pre/src/kernel/cpu/if.cpp
new file mode 100644
index 0000000..5d056fc
--- /dev/null
+++ b/arch/x86_64/pre/src/kernel/cpu/if.cpp
@@ -0,0 +1,13 @@
+namespace teachos::arch::kernel::cpu
+{
+  auto set_interrupt_flag() -> void
+  {
+    asm volatile("sti");
+  }
+
+  auto clear_interrupt_flag() -> void
+  {
+    asm volatile("cli");
+  }
+
+}  // namespace teachos::arch::kernel::cpu