Changeset 105348 in vbox

Timestamp:

Jul 16, 2024 10:39:51 AM (5 months ago)

Author:

vboxsync

Message:

VMM/IEM: Implement vcvtsd2ss 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

@@ -16831 +16831 @@
 
 /**
- * CVTSD2SS
- */
-#ifdef IEM_WITHOUT_ASSEMBLY
+ * [V]CVTSD2SS
+ */
 static uint32_t iemAImpl_cvtsd2ss_u128_r64_worker(PRTFLOAT32U pr32Res, uint32_t fMxcsr, PCRTFLOAT64U pr64Val1)
 {
@@ -16845 +16844 @@
 
 
+#ifdef IEM_WITHOUT_ASSEMBLY
 IEM_DECL_IMPL_DEF(uint32_t, iemAImpl_cvtsd2ss_u128_r64,(uint32_t uMxCsrIn, PX86XMMREG pResult, PCX86XMMREG puSrc1, PCRTFLOAT64U pr64Src2))
 {
@@ -16853 +16853 @@
 }
 #endif
+
+
+IEM_DECL_IMPL_DEF(uint32_t, iemAImpl_vcvtsd2ss_u128_r64_fallback,(uint32_t uMxCsrIn, PX86XMMREG pResult, PCX86XMMREG puSrc1, PCRTFLOAT64U pr64Src2))
+{
+    pResult->ar32[1] = puSrc1->ar32[1];
+    pResult->ar32[2] = puSrc1->ar32[2];
+    pResult->ar32[3] = puSrc1->ar32[3];
+    return iemAImpl_cvtsd2ss_u128_r64_worker(&pResult->ar32[0], uMxCsrIn, pr64Src2);
+}
 
 

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

@@ -3857 +3857 @@
 
 /** Opcode VEX.F2.0F 0x5a - vcvtsd2ss Vss, Hx, Wsd */
-FNIEMOP_STUB(iemOp_vcvtsd2ss_Vss_Hx_Wsd);
+FNIEMOP_DEF(iemOp_vcvtsd2ss_Vss_Hx_Wsd)
+{
+    IEMOP_MNEMONIC3(VEX_RVM, VCVTSD2SS, vcvtsd2ss, Vss, Hx, Wsd, DISOPTYPE_HARMLESS | DISOPTYPE_X86_AVX, 0);
+    return FNIEMOP_CALL_1(iemOpCommonAvx_Vx_Hx_R64,
+                          IEM_SELECT_HOST_OR_FALLBACK(fAvx, iemAImpl_vcvtsd2ss_u128_r64, iemAImpl_vcvtsd2ss_u128_r64_fallback));
+}
+
 
 /** Opcode VEX.0F 0x5b - vcvtdq2ps Vps, Wdq */

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

@@ -4797 +4797 @@
 FNIEMAIMPLFPAVXF3U128R32 iemAImpl_vrcpss_u128_r32,   iemAImpl_vrcpss_u128_r32_fallback;
 FNIEMAIMPLFPAVXF3U128R32 iemAImpl_vcvtss2sd_u128_r32, iemAImpl_vcvtss2sd_u128_r32_fallback;
+FNIEMAIMPLFPAVXF3U128R64 iemAImpl_vcvtsd2ss_u128_r64, iemAImpl_vcvtsd2ss_u128_r64_fallback;
+
 
 FNIEMAIMPLFPAVXF3U256 iemAImpl_vaddps_u256, iemAImpl_vaddps_u256_fallback;