From 1d538ee70c67fdb9b77b7a0d9d236dbebdcbd346 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Adri=C3=A1n=20Arroyo=20Calle?= <adrian.arroyocalle@gmail.com>
Date: Sat, 16 Jan 2021 22:32:50 +0100
Subject: [PATCH] Fix Beta

---
 src/machine/machine_state_impl.rs | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/machine/machine_state_impl.rs b/src/machine/machine_state_impl.rs
index 0e4a4e1c..5de07140 100644
--- a/src/machine/machine_state_impl.rs
+++ b/src/machine/machine_state_impl.rs
@@ -3130,9 +3130,14 @@ impl MachineState {
     ) {
 	    let interrupted = INTERRUPT.load(std::sync::atomic::Ordering::Relaxed);
 
-	    if INTERRUPT.compare_and_swap(interrupted, false, std::sync::atomic::Ordering::Relaxed) {
-            self.throw_interrupt_exception();
-	        return;
+	    match INTERRUPT.compare_exchange(interrupted, false, std::sync::atomic::Ordering::Relaxed, std::sync::atomic::Ordering::Relaxed) {
+            Ok(interruption) => {
+                if interruption {
+                    self.throw_interrupt_exception();
+                    return;
+                }
+            },
+            Err(_) => unreachable!()
 	    }
 
         let mut default_call_policy: Box<dyn CallPolicy> = Box::new(DefaultCallPolicy {});
-- 
2.54.0