From: Cerion Armour-Brown <cerion@valgrind.org>
Date: Thu, 24 Feb 2005 14:57:12 +0000 (+0000)
Subject: Fixed a rotate bug: IBM bit labelling got me again
X-Git-Tag: svn/VALGRIND_3_0_1^2~377
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=12d61352fccea77ea1bf5d5dc423bb32ab21ecdc;p=thirdparty%2Fvalgrind.git

Fixed a rotate bug: IBM bit labelling got me again

git-svn-id: svn://svn.valgrind.org/vex/trunk@957
---

diff --git a/VEX/priv/guest-ppc32/toIR.c b/VEX/priv/guest-ppc32/toIR.c
index 3ce34d3377..06f4bea359 100644
--- a/VEX/priv/guest-ppc32/toIR.c
+++ b/VEX/priv/guest-ppc32/toIR.c
@@ -1690,7 +1690,7 @@ static Bool dis_int_rot ( UInt theInstr )
    UChar MaskEnd   = toUChar((theInstr >>  1) & 0x1F); /* theInstr[1:5]   */
    UChar flag_Rc   = toUChar((theInstr >>  0) & 1);    /* theInstr[0]     */
    
-   UInt mask = MASK(MaskBegin, MaskEnd);
+   UInt mask = MASK(31-MaskBegin, 31-MaskEnd);
    IRTemp rot_amt = newTemp(Ity_I8);
    IRTemp Rs = newTemp(Ity_I32);
    IRTemp Ra = newTemp(Ity_I32);