refactor

kernel/arch/x86_64/irq.c

@@ -0,0 +1,19 @@
+#include <stdint.h>
+#include <x86_64/defs.h>
+
+bool arch_irq_get_state() {
+    uint64_t flags;
+    asm volatile("pushf; pop %0" : "=r"(flags)::"memory");
+    return flags & RFLAGS_IF;
+}
+
+void arch_irq_set_state(bool state) {
+    if (state)
+        asm volatile("sti");
+    else
+        asm volatile("cli");
+}
+
+void arch_irq_wait() {
+    asm volatile("hlt");
+}