Make sure only real bits of pstate can be set.

--HG--
extra : convert_revision : 8707bbed2aeb80613f86503e92b63853767adaa9

diff --git a/src/arch/sparc/miscregfile.cc b/src/arch/sparc/miscregfile.cc
index 8ca3d66f9970ef94457b2c2f974e96de9d118d65..a60288984f4f10012cf493ae5cdc07d9ec1edba5 100644 (file)
--- a/src/arch/sparc/miscregfile.cc
+++ b/src/arch/sparc/miscregfile.cc
@@ -62,6 +62,11 @@ string SparcISA::getMiscRegName(RegIndex index)
     return miscRegName[index];
 }
 
+enum RegMask
+{
+        PSTATE_MASK = (((1 << 4) - 1) << 1) | (((1 << 4) - 1) << 6) | (1 << 12)
+};
+
 void MiscRegFile::reset()
 {
     y = 0;
@@ -275,7 +280,7 @@ void MiscRegFile::setReg(int miscReg, const MiscReg &val)
           tba = val & ULL(~0x7FFF);
           break;
         case MISCREG_PSTATE:
-          pstate = val;
+          pstate = (val & PSTATE_MASK);
           break;
         case MISCREG_TL:
           tl = val;
@@ -377,7 +382,7 @@ void MiscRegFile::setRegWithEffect(int miscReg,
           //Set up performance counting based on pcr value
           break;
         case MISCREG_PSTATE:
-          pstate = val;
+          pstate = val & PSTATE_MASK;
           setImplicitAsis();
           return;
         case MISCREG_TL: