From 98959e902b76ba4d818d3d8293b4ee6bfc82b5dc Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Thu, 7 Dec 2023 13:41:59 +0100
Subject: Better way to handle multiple 3E/26 and F2/F3 prefixes ([DYNAREC]
 too)

---
 src/emu/x64run.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'src/emu')

diff --git a/src/emu/x64run.c b/src/emu/x64run.c
index b9b6ddf7..7faa06c9 100644
--- a/src/emu/x64run.c
+++ b/src/emu/x64run.c
@@ -81,12 +81,15 @@ x64emurun:
         opcode = F8;
         
         rep = 0;
-        while((opcode==0xF2) || (opcode==0xF3)) {
-            rep = opcode-0xF1;
+        while((opcode==0xF2) || (opcode==0xF3) || (opcode==0x3E) || (opcode==0x26)) {
+            switch (opcode) {
+                case 0xF2: rep = 1; break;
+                case 0xF3: rep = 2; break;
+                case 0x3E:
+                case 0x26: /* ignored*/ break;
+            }
             opcode = F8;
         }
-        while((opcode==0x3E) || (opcode==0x26))   //Branch Taken Hint ignored
-            opcode = F8;
         rex.rex = 0;
         rex.is32bits = is32bits;
         if(!is32bits)
-- 
cgit 1.4.1