From 77cea8730a4a629d31192d55c9ef63a3a6c93680 Mon Sep 17 00:00:00 2001
From: Themis Demetriades <td1223@ic.ac.uk>
Date: Thu, 6 Jun 2024 13:47:01 +0100
Subject: [PATCH] Fix getMSB function to only return 0 or 1

---
 src/execute.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/execute.c b/src/execute.c
index 1f37999..428e661 100644
--- a/src/execute.c
+++ b/src/execute.c
@@ -86,7 +86,7 @@ inline static dword getMSBPos(a64inst_regType regType) {
 
 // Returns the MSB of the given value assuming it's of the size stored in the given register type
 inline static uint8_t getMSB(dword value, a64inst_regType regType) {
-    return value >> getMSBPos(regType); 
+    return (value >> getMSBPos(regType)) & 1u; 
 }
 
 // Updates N and Z condition codes given the machine and a result value