Changeset 96349 in vbox

Timestamp:

Aug 19, 2022 5:05:23 PM (3 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

153165

Message:

VMM/IEM: Implement divss/divsd instructions, bugref:9898

Location:

trunk/src/VBox/VMM

Files:

• VMMAll/IEMAllAImpl.asm (modified) (2 diffs)
• VMMAll/IEMAllAImplC.cpp (modified) (2 diffs)
• VMMAll/IEMAllInstructionsTwoByte0f.cpp.h (modified) (1 diff)
• include/IEMInternal.h (modified) (2 diffs)
• testcase/tstIEMCheckMc.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/IEMAllAImpl.asm

@@ -4645 +4645 @@
 IEMIMPL_FP_F2_R32 subss
 IEMIMPL_FP_F2_R32 minss
+IEMIMPL_FP_F2_R32 divss
 
 
@@ -4693 +4694 @@
 IEMIMPL_FP_F2_R64 subsd
 IEMIMPL_FP_F2_R64 minsd
+IEMIMPL_FP_F2_R64 divsd

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

@@ -14551 +14551 @@
 
 /**
+ * DIVSS
+ */
+#ifdef IEM_WITHOUT_ASSEMBLY
+IEM_DECL_IMPL_DEF(void, iemAImpl_divss_u128_r32,(PX86FXSTATE pFpuState, PIEMSSERESULT pResult, PCX86XMMREG puSrc1, PCRTFLOAT32U pr32Src2))
+{
+    pResult->MXCSR = iemAImpl_divps_u128_worker(&pResult->uResult.ar32[0], pFpuState->MXCSR, &puSrc1->ar32[0], pr32Src2);
+    pResult->uResult.ar32[1] = puSrc1->ar32[1];
+    pResult->uResult.ar32[2] = puSrc1->ar32[2];
+    pResult->uResult.ar32[3] = puSrc1->ar32[3];
+}
+#endif
+
+
+/**
  * DIVPD
  */
@@ -14598 +14612 @@
 
 /**
+ * DIVSD
+ */
+#ifdef IEM_WITHOUT_ASSEMBLY
+IEM_DECL_IMPL_DEF(void, iemAImpl_divsd_u128_r64,(PX86FXSTATE pFpuState, PIEMSSERESULT pResult, PCX86XMMREG puSrc1, PCRTFLOAT64U pr64Src2))
+{
+    pResult->MXCSR = iemAImpl_divpd_u128_worker(&pResult->uResult.ar64[0], pFpuState->MXCSR, &puSrc1->ar64[0], pr64Src2);
+    pResult->uResult.ar64[1] = puSrc1->ar64[1];
+}
+#endif
+
+
+/**
  * MAXPS
  */

trunk/src/VBox/VMM/VMMAll/IEMAllInstructionsTwoByte0f.cpp.h

@@ -4216 +4216 @@
 
 /** Opcode 0xf3 0x0f 0x5e - divss Vss, Wss */
-FNIEMOP_STUB(iemOp_divss_Vss_Wss);
+FNIEMOP_DEF(iemOp_divss_Vss_Wss)
+{
+    IEMOP_MNEMONIC2(RM, DIVSS, divss, Vss, Wss, DISOPTYPE_HARMLESS, 0);
+    return FNIEMOP_CALL_1(iemOpCommonSseFp_FullR32_To_Full, iemAImpl_divss_u128_r32);
+}
+
+
 /** Opcode 0xf2 0x0f 0x5e - divsd Vsd, Wsd */
-FNIEMOP_STUB(iemOp_divsd_Vsd_Wsd);
+FNIEMOP_DEF(iemOp_divsd_Vsd_Wsd)
+{
+    IEMOP_MNEMONIC2(RM, DIVSD, divsd, Vsd, Wsd, DISOPTYPE_HARMLESS, 0);
+    return FNIEMOP_CALL_1(iemOpCommonSse2Fp_FullR64_To_Full, iemAImpl_divsd_u128_r64);
+}
 
 

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

@@ -2447 +2447 @@
 FNIEMAIMPLFPSSEF2U128R32 iemAImpl_minss_u128_r32;
 FNIEMAIMPLFPSSEF2U128R64 iemAImpl_minsd_u128_r64;
+FNIEMAIMPLFPSSEF2U128R32 iemAImpl_divss_u128_r32;
+FNIEMAIMPLFPSSEF2U128R64 iemAImpl_divsd_u128_r64;
 
 FNIEMAIMPLFPAVXF3U128 iemAImpl_vaddps_u128, iemAImpl_vaddps_u128_fallback;
@@ -2469 +2471 @@
 FNIEMAIMPLFPAVXF3U128R32 iemAImpl_vminss_u128_r32, iemAImpl_vminss_u128_r32_fallback;
 FNIEMAIMPLFPAVXF3U128R64 iemAImpl_vminsd_u128_r64, iemAImpl_vminsd_u128_r64_fallback;
+FNIEMAIMPLFPAVXF3U128R32 iemAImpl_vdivss_u128_r32, iemAImpl_vdivss_u128_r32_fallback;
+FNIEMAIMPLFPAVXF3U128R64 iemAImpl_vdivsd_u128_r64, iemAImpl_vdivsd_u128_r64_fallback;
 
 FNIEMAIMPLFPAVXF3U256 iemAImpl_vaddps_u256, iemAImpl_vaddps_u256_fallback;

trunk/src/VBox/VMM/testcase/tstIEMCheckMc.cpp

@@ -483 +483 @@
 #define iemAImpl_minss_u128_r32         NULL
 #define iemAImpl_minsd_u128_r64         NULL
+#define iemAImpl_divss_u128_r32         NULL
+#define iemAImpl_divsd_u128_r64         NULL
+
 /** @}  */