Changeset 42724 in vbox for trunk

Timestamp:

Aug 9, 2012 7:02:36 PM (12 years ago)

Author:

vboxsync

Message:

IEM: Fixed a copy&past bug in fnsave wrt FTW. Added a verification/rem kludge to STI.

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllCImpl.cpp.h (modified) (4 diffs)

trunk/src/VBox/VMM/VMMAll/IEMAllCImpl.cpp.h

@@ -4015 +4015 @@
     IEMMISC_SET_EFL(pIemCpu, pCtx, fEfl);
     iemRegAddToRip(pIemCpu, cbInstr);
-    if (!(fEflOld & X86_EFL_IF) && (fEfl & X86_EFL_IF))
+    if ((!(fEflOld & X86_EFL_IF) && (fEfl & X86_EFL_IF)) || IEM_VERIFICATION_ENABLED(pIemCpu))
         EMSetInhibitInterruptsPC(IEMCPU_TO_VMCPU(pIemCpu), pCtx->rip);
     Log2(("STI: %#x -> %#x\n", fEflOld, fEfl));
@@ -4458 +4458 @@
 
 /**
- * Commmon routine for fnstenv and fnsave.
+ * Commmon routine for fldenv and frstor
  *
  * @param   uPtr                Where to store the state.
@@ -4588 +4588 @@
     pCtx->fpu.FCW   = 0x37f;
     pCtx->fpu.FSW   = 0;
-    pCtx->fpu.FTW   = 0xffff;       /* 11 - empty */
+    pCtx->fpu.FTW   = 0x00;       /* 0 - empty */
     pCtx->fpu.FPUDP = 0;
     pCtx->fpu.DS    = 0;
@@ -4597 +4597 @@
     pCtx->fpu.FOP   = 0;
 
-
     iemHlpUsedFpu(pIemCpu);
     iemRegAddToRip(pIemCpu, cbInstr);