Changeset 105221 in vbox

Timestamp:

Jul 9, 2024 9:16:35 AM (5 months ago)

Author:

vboxsync

Message:

VMM/IEM: Implement vmulss instruction emulation, bugref:9898

Location:

trunk/src/VBox/VMM/VMMAll

Files:

• IEMAllAImplC.cpp (modified) (2 diffs)
• IEMAllInstVexMap1.cpp.h (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/IEMAllAImplC.cpp

@@ -16092 +16092 @@
 
 /**
- * MULSS
+ * [V]MULSS
  */
 #ifdef IEM_WITHOUT_ASSEMBLY
@@ -16103 +16103 @@
 }
 #endif
+
+
+IEM_DECL_IMPL_DEF(uint32_t, iemAImpl_vmulss_u128_r32_fallback,(uint32_t uMxCsrIn, PX86XMMREG pResult, PCX86XMMREG puSrc1, PCRTFLOAT32U pr32Src2))
+{
+    pResult->ar32[1] = puSrc1->ar32[1];
+    pResult->ar32[2] = puSrc1->ar32[2];
+    pResult->ar32[3] = puSrc1->ar32[3];
+    return iemAImpl_mulps_u128_worker(&pResult->ar32[0], uMxCsrIn, &puSrc1->ar32[0], pr32Src2);
+}
 
 

trunk/src/VBox/VMM/VMMAll/IEMAllInstVexMap1.cpp.h

@@ -3013 +3013 @@
 
 /** Opcode VEX.F3.0F 0x59 - vmulss Vss, Hss, Wss */
-FNIEMOP_STUB(iemOp_vmulss_Vss_Hss_Wss);
+FNIEMOP_DEF(iemOp_vmulss_Vss_Hss_Wss)
+{
+    IEMOP_MNEMONIC3(VEX_RVM, VMULSS, vmulss, Vps, Hps, Wss, DISOPTYPE_HARMLESS | DISOPTYPE_X86_AVX, 0);
+    return FNIEMOP_CALL_1(iemOpCommonAvx_Vx_Hx_R32,
+                          IEM_SELECT_HOST_OR_FALLBACK(fAvx, iemAImpl_vmulss_u128_r32, iemAImpl_vmulss_u128_r32_fallback));
+}
+
+
 /** Opcode VEX.F2.0F 0x59 - vmulsd Vsd, Hsd, Wsd */
 FNIEMOP_STUB(iemOp_vmulsd_Vsd_Hsd_Wsd);