From 57d6539292327fef86cb7e765c95cbedebec5f29 Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Sat, 6 Mar 2021 14:16:52 +0100
Subject: Added (partial) 0F AE (M/S/L)FENCE opcodes

---
 src/emu/x64run0f.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'src')

diff --git a/src/emu/x64run0f.c b/src/emu/x64run0f.c
index 50867d5a..6c68434f 100644
--- a/src/emu/x64run0f.c
+++ b/src/emu/x64run0f.c
@@ -84,6 +84,23 @@ int Run0F(x64emu_t *emu, rex_t rex)
             my_cpuid(emu, tmp32u);
             break;
 
+        case 0xAE:                      /* Grp Ed (SSE) */
+            nextop = F8;
+            if((nextop&0xF8)==0xE8) {
+                return 0;                   /* LFENCE */
+            }
+            if((nextop&0xF8)==0xF0) {
+                return 0;                   /* MFENCE */
+            }
+            if((nextop&0xF8)==0xF8) {
+                return 0;                   /* SFENCE */
+            }
+            GETED;
+            switch((nextop>>3)&7) {
+                default:
+                    return 1;
+            }
+            break;
         case 0xAF:                      /* IMUL Gd,Ed */
             nextop = F8;
             GETED;
-- 
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