Changeset 104134 in vbox for trunk/src/VBox/VMM/include

Timestamp:

Apr 3, 2024 12:57:47 PM (10 months ago)

Author:

vboxsync

Message:

VMM/IEM: Convert the 256-bit vmovsldup/vmovshdup/vmovddup emulations to microcode, bugref:10641 [bug fix for IEM_MC_STORE_YREG_U64_U256 in the interpreter]

File:

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

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

@@ -713 +713 @@
     do { uintptr_t const iYRegDstTmp    = (a_iYRegDst); \
          if ((a_iQwDst) < 2) \
-            pVCpu->cpum.GstCtx.XState.x87.aXMM[(iYRegDstTmp)].au64[(a_iQwDst)] = (a_u256Value).au64[(a_iQwDst)]; \
+            pVCpu->cpum.GstCtx.XState.x87.aXMM[(iYRegDstTmp)].au64[(a_iQwDst)] = (a_u256Value).au64[(a_iQwSrc)]; \
          else \
-            pVCpu->cpum.GstCtx.XState.u.YmmHi.aYmmHi[(iYRegDstTmp)].au64[(a_iQwDst) - 4] = (a_u256Value).au64[(a_iQwDst)]; \
+            pVCpu->cpum.GstCtx.XState.u.YmmHi.aYmmHi[(iYRegDstTmp)].au64[(a_iQwDst) - 2] = (a_u256Value).au64[(a_iQwSrc)]; \
     } while (0)
 #define IEM_MC_STORE_YREG_U64(a_iYRegDst, a_iQword, a_u64Value) \