From: Julian Seward <jseward@acm.org>
Date: Mon, 3 Oct 2005 02:44:01 +0000 (+0000)
Subject: Implement the 0F 7F encoding for movq mmreg, mmreg.
X-Git-Tag: svn/VALGRIND_3_1_1^2~83
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=538d454d751d637e949335841896608e0076a8ca;p=thirdparty%2Fvalgrind.git

Implement the 0F 7F encoding for movq mmreg, mmreg.


git-svn-id: svn://svn.valgrind.org/vex/trunk@1408
---

diff --git a/VEX/priv/guest-x86/toIR.c b/VEX/priv/guest-x86/toIR.c
index e966fca5b9..622810851f 100644
--- a/VEX/priv/guest-x86/toIR.c
+++ b/VEX/priv/guest-x86/toIR.c
@@ -5334,9 +5334,10 @@ UInt dis_MMX ( Bool* decode_ok, UChar sorb, Int sz, Int delta )
             goto mmx_decode_failure;
          modrm = getIByte(delta);
          if (epartIsReg(modrm)) {
-            /* Fall through.  The assembler doesn't appear to generate
-               these. */
-            goto mmx_decode_failure;
+            delta++;
+            putMMXReg( eregOfRM(modrm), getMMXReg(gregOfRM(modrm)) );
+            DIP("movq %s, %s\n", 
+                nameMMXReg(gregOfRM(modrm)), nameMMXReg(eregOfRM(modrm)));
          } else {
             IRTemp addr = disAMode( &len, sorb, delta, dis_buf );
             delta += len;