From: Julian Seward <jseward@acm.org>
Date: Wed, 5 Oct 2005 17:19:11 +0000 (+0000)
Subject: Handle BT/BTS/BTR/BTC at size 4 as well as 8.
X-Git-Tag: svn/VALGRIND_3_1_1^2~77
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c314ab86cb3c7e961b5ce2b346aededa71bc0993;p=thirdparty%2Fvalgrind.git

Handle BT/BTS/BTR/BTC at size 4 as well as 8.


git-svn-id: svn://svn.valgrind.org/vex/trunk@1414
---

diff --git a/VEX/priv/guest-amd64/toIR.c b/VEX/priv/guest-amd64/toIR.c
index 757b0b0e74..30f79d42f3 100644
--- a/VEX/priv/guest-amd64/toIR.c
+++ b/VEX/priv/guest-amd64/toIR.c
@@ -12907,27 +12907,27 @@ DisResult disInstr_AMD64_WRK (
 
       /* =-=-=-=-=-=-=-=-=- BT/BTS/BTR/BTC =-=-=-=-=-=-= */
 
-      /* All of these are possible at sizes 2, 4 and 8, but until size
-         2 and 4 test cases show up, only handle size 8. */
+      /* All of these are possible at sizes 2, 4 and 8, but until a
+         size 2 test case shows up, only handle sizes 4 and 8. */
 
       case 0xA3: /* BT Gv,Ev */
          if (haveF2orF3(pfx)) goto decode_failure;
-         if (sz != 8) goto decode_failure;
+         if (sz != 8 && sz != 4) goto decode_failure;
          delta = dis_bt_G_E ( pfx, sz, delta, BtOpNone );
          break;
       case 0xB3: /* BTR Gv,Ev */
          if (haveF2orF3(pfx)) goto decode_failure;
-         if (sz != 8) goto decode_failure;
+         if (sz != 8 && sz != 4) goto decode_failure;
          delta = dis_bt_G_E ( pfx, sz, delta, BtOpReset );
          break;
       case 0xAB: /* BTS Gv,Ev */
          if (haveF2orF3(pfx)) goto decode_failure;
-         if (sz != 8) goto decode_failure;
+         if (sz != 8 && sz != 4) goto decode_failure;
          delta = dis_bt_G_E ( pfx, sz, delta, BtOpSet );
          break;
       case 0xBB: /* BTC Gv,Ev */
          if (haveF2orF3(pfx)) goto decode_failure;
-         if (sz != 8) goto decode_failure;
+         if (sz != 8 && sz != 4) goto decode_failure;
          delta = dis_bt_G_E ( pfx, sz, delta, BtOpComp );
          break;