Changeset 40162 in vbox

Timestamp:

Feb 16, 2012 7:28:18 PM (13 years ago)

Author:

vboxsync

Message:

fmul st0,m64r

Location:

trunk

Files:

• include/iprt/x86.h (modified) (1 diff)
• src/VBox/VMM/VMMAll/IEMAll.cpp (modified) (1 diff)
• src/VBox/VMM/VMMAll/IEMAllAImpl.asm (modified) (2 diffs)
• src/VBox/VMM/VMMAll/IEMAllCImpl.cpp.h (modified) (1 diff)
• src/VBox/VMM/VMMAll/IEMAllInstructions.cpp.h (modified) (2 diffs)
• src/VBox/VMM/include/IEMInternal.h (modified) (2 diffs)

trunk/include/iprt/x86.h

@@ -6 +6 @@
 
 /*
- * Copyright (C) 2006-2011 Oracle Corporation
+ * Copyright (C) 2006-2012 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as

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

@@ -5 +5 @@
 
 /*
- * Copyright (C) 2011 Oracle Corporation
+ * Copyright (C) 2011-2012 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as

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

@@ -4 +4 @@
 ;
 
-; Copyright (C) 2011 Oracle Corporation
+; Copyright (C) 2011-2012 Oracle Corporation
 ;
 ; This file is part of VirtualBox Open Source Edition (OSE), as
@@ -1393 +1393 @@
 ENDPROC iemAImpl_fpu_fdiv_r80_by_r64
 
+
+;;
+; FMUL with 64-bit floating point value.
+;
+; @param    A0      FPU context (fxsave).
+; @param    A1      Pointer to a IEMFPURESULT for the output.
+; @param    A2      Pointer to the 80-bit factor.
+; @param    A3      Pointer to the 64-bit factor.
+;
+BEGINPROC_FASTCALL iemAImpl_fpu_fmul_r80_by_r64, 16
+        PROLOGUE_4_ARGS
+        sub     xSP, 20h
+
+        fninit
+        fld     tword [A2]
+        FPU_LD_FXSTATE_FCW_AND_SAFE_FSW A0
+        fmul    qword [A3]
+
+        fnstsw  word  [A1 + IEMFPURESULT.FSW]
+        fnclex
+        fstp    tword [A1 + IEMFPURESULT.r80Result]
+
+        add     xSP, 20h
+        EPILOGUE_4_ARGS 8
+ENDPROC iemAImpl_fpu_fmul_r80_by_r64
+

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

@@ -5 +5 @@
 
 /*
- * Copyright (C) 2011 Oracle Corporation
+ * Copyright (C) 2011-2012 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as

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

@@ -5 +5 @@
 
 /*
- * Copyright (C) 2011 Oracle Corporation
+ * Copyright (C) 2011-2012 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as
@@ -10810 +10810 @@
 
 /** Opcode 0xdc !11/1. */
-FNIEMOP_STUB_1(iemOp_fmul_m64r,  uint8_t, bRm);
+FNIEMOP_DEF_1(iemOp_fmul_m64r,  uint8_t, bRm)
+{
+    IEMOP_MNEMONIC("fdiv m64r");
+    IEMOP_HLP_NO_LOCK_PREFIX();
+
+    IEM_MC_BEGIN(3, 3);
+    IEM_MC_LOCAL(RTGCPTR,               GCPtrEffSrc);
+    IEM_MC_LOCAL(IEMFPURESULT,          FpuRes);
+    IEM_MC_LOCAL(RTFLOAT64U,            r64Factor2);
+    IEM_MC_ARG_LOCAL_REF(PIEMFPURESULT, pFpuRes,        FpuRes,     0);
+    IEM_MC_ARG(PCRTFLOAT80U,            pr80Factor1,                1);
+    IEM_MC_ARG_LOCAL_REF(PRTFLOAT64U,   pr64Factor2,    r64Factor2, 2);
+
+    IEM_MC_CALC_RM_EFF_ADDR(GCPtrEffSrc, bRm);
+    IEM_MC_MAYBE_RAISE_DEVICE_NOT_AVAILABLE();
+    IEM_MC_MAYBE_RAISE_FPU_XCPT();
+    IEM_MC_FETCH_MEM_R64(r64Factor2, pIemCpu->iEffSeg, GCPtrEffSrc);
+    IEM_MC_IF_FPUREG_NOT_EMPTY_REF_R80(pr80Factor1, 0)
+        IEM_MC_CALL_FPU_AIMPL_3(iemAImpl_fpu_fmul_r80_by_r64, pFpuRes, pr80Factor1, pr64Factor2);
+        IEM_MC_STORE_FPU_RESULT_MEM_OP(FpuRes, 0, pIemCpu->iEffSeg, GCPtrEffSrc);
+    IEM_MC_ELSE()
+        IEM_MC_FPU_STACK_UNDERFLOW_MEM_OP(0, pIemCpu->iEffSeg, GCPtrEffSrc);
+    IEM_MC_ENDIF();
+    IEM_MC_ADVANCE_RIP();
+
+    IEM_MC_END();
+    return VINF_SUCCESS;
+}
 
 /** Opcode 0xdc !11/2. */

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

@@ -5 +5 @@
 
 /*
- * Copyright (C) 2011 Oracle Corporation
+ * Copyright (C) 2011-2012 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as
@@ -725 +725 @@
 FNIEMAIMPLFPUR64U iemAImpl_fpu_r64_to_r80;
 FNIEMAIMPLFPUR64  iemAImpl_fpu_fdiv_r80_by_r64;
+FNIEMAIMPLFPUR64  iemAImpl_fpu_fmul_r80_by_r64;
 
 /** @} */