From c33368bfb49f0391cbb9fa31f93197030a4f175a Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Fri, 26 Mar 2021 22:43:07 +0100
Subject: Added 0F 18 opcode

---
 src/emu/x64run0f.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src')

diff --git a/src/emu/x64run0f.c b/src/emu/x64run0f.c
index b6e3bd20..667dbb1f 100644
--- a/src/emu/x64run0f.c
+++ b/src/emu/x64run0f.c
@@ -104,6 +104,22 @@ int Run0F(x64emu_t *emu, rex_t rex)
             GETGX;
             EX->q[0] = GX->q[1];
             break;
+        case 0x18:                       /* PREFETCHh Ed */
+            nextop = F8;
+            GETED(0);
+            if(MODREG) {
+            } else
+            switch((nextop>>3)&7) {
+                case 0: //PREFETCHnta
+                case 1: //PREFETCH1
+                case 2: //PREFETCH2
+                case 3: //PREFETCH3
+                    __builtin_prefetch((void*)ED, 0, 0); // ignoring wich level of cache
+                    break;
+                default:    //NOP
+                    break;
+            }
+            break;
 
         case 0x1F:                      /* NOP (multi-byte) */
             nextop = F8;
-- 
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