From 0e91fd681efe51cfd2ea5038b4e66316ac8b1b88 Mon Sep 17 00:00:00 2001
From: iximeow <me@iximeow.net>
Date: Sat, 8 Jul 2023 11:05:09 -0700
Subject: actually reject lock prefixes in vex instructions

---
 src/long_mode/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/long_mode/mod.rs b/src/long_mode/mod.rs
index 74eb5ce..a84dbd9 100644
--- a/src/long_mode/mod.rs
+++ b/src/long_mode/mod.rs
@@ -4688,7 +4688,7 @@ impl Prefixes {
          * || instruction.prefixes.rep()
          * || instruction.prefixes.repnz() {
          */
-        (self.bits & 0b1100_1001) > 0 || (self.rex.bits > 0)
+        (self.bits & 0b1100_0101) > 0 || (self.rex.bits > 0)
     }
     #[inline]
     pub fn vex(&self) -> Option<PrefixVex> {
-- 
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