Changeset 105223 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Jul 9, 2024 9:37:01 AM (7 months ago)

Author:

vboxsync

Message:

VMM/IEM: Implement vsubsd 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

@@ -16296 +16296 @@
 
 /**
- * SUBSD
+ * [V]SUBSD
  */
 #ifdef IEM_WITHOUT_ASSEMBLY
@@ -16305 +16305 @@
 }
 #endif
+
+
+IEM_DECL_IMPL_DEF(uint32_t, iemAImpl_vsubsd_u128_r64_fallback,(uint32_t uMxCsrIn, PX86XMMREG pResult, PCX86XMMREG puSrc1, PCRTFLOAT64U pr64Src2))
+{
+    pResult->ar64[1] = puSrc1->ar64[1];
+    return iemAImpl_subpd_u128_worker(&pResult->ar64[0], uMxCsrIn, &puSrc1->ar64[0], pr64Src2);
+}
 
 

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

@@ -3076 +3076 @@
 
 /** Opcode VEX.F2.0F 0x5c - vsubsd Vsd, Hsd, Wsd */
-FNIEMOP_STUB(iemOp_vsubsd_Vsd_Hsd_Wsd);
+FNIEMOP_DEF(iemOp_vsubsd_Vsd_Hsd_Wsd)
+{
+    IEMOP_MNEMONIC3(VEX_RVM, VSUBSD, vsubsd, Vpd, Hpd, Wsd, DISOPTYPE_HARMLESS | DISOPTYPE_X86_AVX, 0);
+    return FNIEMOP_CALL_1(iemOpCommonAvx_Vx_Hx_R64,
+                          IEM_SELECT_HOST_OR_FALLBACK(fAvx, iemAImpl_vsubsd_u128_r64, iemAImpl_vsubsd_u128_r64_fallback));
+}
+
 
 /** Opcode VEX.0F 0x5d - vminps Vps, Hps, Wps */