Changeset 105347 in vbox

Timestamp:

Jul 16, 2024 10:31:26 AM (5 months ago)

Author:

vboxsync

Message:

VMM/IEM: Implement vcvtss2sd instruction emulation, bugref:9898

Location:

trunk/src/VBox/VMM

Files:

• VMMAll/IEMAllAImplC.cpp (modified) (3 diffs)
• VMMAll/IEMAllInstVexMap1.cpp.h (modified) (1 diff)
• include/IEMInternal.h (modified) (1 diff)

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

@@ -16801 +16801 @@
 
 /**
- * CVTSS2SD
- */
-#ifdef IEM_WITHOUT_ASSEMBLY
+ * [V]CVTSS2SD
+ */
 static uint32_t iemAImpl_cvtss2sd_u128_r32_worker(PRTFLOAT64U pr64Res, uint32_t fMxcsr, PCRTFLOAT32U pr32Val1)
 {
@@ -16815 +16814 @@
 
 
+#ifdef IEM_WITHOUT_ASSEMBLY
 IEM_DECL_IMPL_DEF(uint32_t, iemAImpl_cvtss2sd_u128_r32,(uint32_t uMxCsrIn, PX86XMMREG pResult, PCX86XMMREG puSrc1, PCRTFLOAT32U pr32Src2))
 {
@@ -16821 +16821 @@
 }
 #endif
+
+
+IEM_DECL_IMPL_DEF(uint32_t, iemAImpl_vcvtss2sd_u128_r32_fallback,(uint32_t uMxCsrIn, PX86XMMREG puDst, PCX86XMMREG puSrc1, PCRTFLOAT32U pr32Src2))
+{
+    puDst->ar64[1] = puSrc1->ar64[1];
+    return iemAImpl_cvtss2sd_u128_r32_worker(&puDst->ar64[0], uMxCsrIn, pr32Src2);
+}
 
 

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

@@ -3848 +3848 @@
 
 /** Opcode VEX.F3.0F 0x5a - vcvtss2sd Vsd, Hx, Wss */
-FNIEMOP_STUB(iemOp_vcvtss2sd_Vsd_Hx_Wss);
+FNIEMOP_DEF(iemOp_vcvtss2sd_Vsd_Hx_Wss)
+{
+    IEMOP_MNEMONIC3(VEX_RVM, VCVTSS2SD, vcvtss2sd, Vsd, Hx, Wss, DISOPTYPE_HARMLESS | DISOPTYPE_X86_AVX, 0);
+    return FNIEMOP_CALL_1(iemOpCommonAvx_Vx_Hx_R32,
+                          IEM_SELECT_HOST_OR_FALLBACK(fAvx, iemAImpl_vcvtss2sd_u128_r32, iemAImpl_vcvtss2sd_u128_r32_fallback));
+}
+
+
 /** Opcode VEX.F2.0F 0x5a - vcvtsd2ss Vss, Hx, Wsd */
 FNIEMOP_STUB(iemOp_vcvtsd2ss_Vss_Hx_Wsd);

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

@@ -4796 +4796 @@
 FNIEMAIMPLFPAVXF3U128R32 iemAImpl_vrsqrtss_u128_r32, iemAImpl_vrsqrtss_u128_r32_fallback;
 FNIEMAIMPLFPAVXF3U128R32 iemAImpl_vrcpss_u128_r32,   iemAImpl_vrcpss_u128_r32_fallback;
+FNIEMAIMPLFPAVXF3U128R32 iemAImpl_vcvtss2sd_u128_r32, iemAImpl_vcvtss2sd_u128_r32_fallback;
 
 FNIEMAIMPLFPAVXF3U256 iemAImpl_vaddps_u256, iemAImpl_vaddps_u256_fallback;