Changeset 104368 in vbox for trunk/src/VBox/VMM

Timestamp:

Apr 19, 2024 6:54:56 AM (11 months ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

162857

Message:

VMM/IEM: bugref:9898 Fix insertps emulation to apply the clear mask after (rather than before) copying the source value to the destination.

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllInstThree0f3a.cpp.h (modified) (2 diffs)

trunk/src/VBox/VMM/VMMAll/IEMAllInstThree0f3a.cpp.h

@@ -827 +827 @@
         IEM_MC_LOCAL(uint32_t, uSrc);
         IEM_MC_FETCH_XREG_U32(uSrc, IEM_GET_MODRM_RM(pVCpu, bRm), (bImm >> 6) & 3);
+        IEM_MC_STORE_XREG_U32(IEM_GET_MODRM_REG(pVCpu, bRm), (bImm >> 4) & 3, uSrc);
         IEM_MC_CLEAR_XREG_U32_MASK(IEM_GET_MODRM_REG(pVCpu, bRm), bImm);
-        IEM_MC_STORE_XREG_U32(IEM_GET_MODRM_REG(pVCpu, bRm), (bImm >> 4) & 3, uSrc);
 
         IEM_MC_ADVANCE_RIP_AND_FINISH();
@@ -849 +849 @@
         IEM_MC_LOCAL(uint32_t,  uSrc);
         IEM_MC_FETCH_MEM_U32(uSrc, pVCpu->iem.s.iEffSeg, GCPtrEffSrc);
+        IEM_MC_STORE_XREG_U32(IEM_GET_MODRM_REG(pVCpu, bRm), (bImm >> 4) & 3, uSrc);
         IEM_MC_CLEAR_XREG_U32_MASK(IEM_GET_MODRM_REG(pVCpu, bRm), bImm);
-        IEM_MC_STORE_XREG_U32(IEM_GET_MODRM_REG(pVCpu, bRm), (bImm >> 4) & 3, uSrc);
         IEM_MC_ADVANCE_RIP_AND_FINISH();
         IEM_MC_END();