Changeset 104079 in vbox for trunk/src

Timestamp:

Mar 27, 2024 10:30:38 AM (13 months ago)

Author:

vboxsync

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

162478

Message:

VMM/IEM: Can't access the high byte of a register when a VEX prefix is present, but will always give access to the regular reegister space, bugref:9898

File:

• trunk/src/VBox/VMM/include/IEMInline.h (modified) (1 diff)

trunk/src/VBox/VMM/include/IEMInline.h

@@ -1753 +1753 @@
 DECL_FORCE_INLINE(uint8_t *) iemGRegRefU8(PVMCPUCC pVCpu, uint8_t iReg) RT_NOEXCEPT
 {
-    if (iReg < 4 || (pVCpu->iem.s.fPrefixes & IEM_OP_PRF_REX))
+    if (iReg < 4 || (pVCpu->iem.s.fPrefixes & (IEM_OP_PRF_REX | IEM_OP_PRF_VEX)))
     {
         Assert(iReg < 16);