From: Julian Seward <jseward@acm.org>
Date: Mon, 16 Dec 2002 00:10:30 +0000 (+0000)
Subject: Fix bug in MOV Iv,Ev when Ev is a reg.  Noticed by Magnus Christensson
X-Git-Tag: svn/VALGRIND_1_9_4~63
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac6d39fddeae5f5501af036787e57ab199d1aa5f;p=thirdparty%2Fvalgrind.git

Fix bug in MOV Iv,Ev when Ev is a reg.  Noticed by Magnus Christensson
<mch@virtutech.se>.  The bug lasted this long because there is an
alternative shorter encoding for the same insn which is usually used
in preference.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1384
---

diff --git a/coregrind/vg_to_ucode.c b/coregrind/vg_to_ucode.c
index b60f8aaf6e..66ed490673 100644
--- a/coregrind/vg_to_ucode.c
+++ b/coregrind/vg_to_ucode.c
@@ -3697,6 +3697,7 @@ static Addr disInstr ( UCodeBlock* cb, Addr eip, Bool* isEnd )
    do_Mov_I_E:
       modrm = getUChar(eip);
       if (epartIsReg(modrm)) {
+         eip++; /* mod/rm byte */
          d32 = getUDisp(sz,eip); eip += sz;
          t1 = newTemp(cb);
          uInstr2(cb, MOV, sz, Literal, 0,  TempReg, t1);