From 64b2e8d77a8ae268599da9e6010ebef85dbe90d3 Mon Sep 17 00:00:00 2001
From: Baptiste Wicht <baptiste.wicht@gmail.com>
Date: Wed, 2 Apr 2014 22:43:04 +0200
Subject: [PATCH] Add a way to get RFLAGS register value

---
 kernel/include/arch.hpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/kernel/include/arch.hpp b/kernel/include/arch.hpp
index 2cd02e90..2e3f1805 100644
--- a/kernel/include/arch.hpp
+++ b/kernel/include/arch.hpp
@@ -9,4 +9,23 @@ namespace arch {
 
 void enable_sse();
 
+inline size_t get_rflags(){
+    size_t rflags;
+    asm volatile("pushfq; pop %0;" : "=g" (rflags));
+    return rflags;
+}
+
+inline void disable_hwint(size_t& rflags){
+    asm volatile("pushfq; pop %0; cli;" : "=g" (rflags));
+}
+
+inline void enable_hwint(size_t& rflags){
+    asm volatile("push %0; popfq; " :: "g" (rflags));
+}
+
+inline bool interrupts_enabled(){
+    auto flags = get_rflags();
+    return flags & 0x200;
+}
+
 } //enf of arch namespace