From: Julian Seward <jseward@acm.org>
Date: Tue, 13 May 2008 21:21:16 +0000 (+0000)
Subject: Support 8 bit xadd.  Fixes #158744.
X-Git-Tag: svn/VALGRIND_3_4_1^2~28
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=911bcf481f76a9b64698004985273151050a50ef;p=thirdparty%2Fvalgrind.git

Support 8 bit xadd.  Fixes #158744.


git-svn-id: svn://svn.valgrind.org/vex/trunk@1848
---

diff --git a/VEX/priv/guest-amd64/toIR.c b/VEX/priv/guest-amd64/toIR.c
index bb6e0718f5..0e644ccbeb 100644
--- a/VEX/priv/guest-amd64/toIR.c
+++ b/VEX/priv/guest-amd64/toIR.c
@@ -15584,9 +15584,13 @@ DisResult disInstr_AMD64_WRK (
 
       /* =-=-=-=-=-=-=-=-=- XADD -=-=-=-=-=-=-=-=-=-= */
 
-//.. //--       case 0xC0: /* XADD Gb,Eb */
-//.. //--          eip = dis_xadd_G_E ( cb, sorb, 1, eip );
-//.. //--          break;
+      case 0xC0: { /* XADD Gb,Eb */ 
+         Bool decode_OK = False;
+         delta = dis_xadd_G_E ( &decode_OK, pfx, 1, delta );
+         if (!decode_OK)
+            goto decode_failure;
+         break;
+      }
       case 0xC1: { /* XADD Gv,Ev */ 
          Bool decode_OK = False;
          delta = dis_xadd_G_E ( &decode_OK, pfx, sz, delta );