Changeset 104183 in vbox for trunk/src/VBox/VMM/include

Timestamp:

Apr 5, 2024 12:55:25 PM (10 months ago)

Author:

vboxsync

Message:

VMM/IEM: Get rid of IEM_MC_IF_MXCSR_XCPT_PENDING() and IEM_MC_RAISE_SSE_AVX_SIMD_FP_OR_UD_XCPT() and replace with IEM_MC_MAYBE_RAISE_SSE_AVX_SIMD_FP_OR_UD_XCPT(). This makes the microcode blocks leaner and the recompiler doesn't has to do as much state keeping. Furthermore there is now exactly one way of doing SSE/AVX floating point operations when it comes to exception handling, bugref:10641

File:

• trunk/src/VBox/VMM/include/IEMMc.h (modified) (2 diffs)

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

@@ -187 +187 @@
             return iemRaiseUndefinedOpcode(pVCpu); \
         } \
-    } while (0)
-#define IEM_MC_RAISE_SSE_AVX_SIMD_FP_OR_UD_XCPT() \
-    do { \
-        if (pVCpu->cpum.GstCtx.cr4 & X86_CR4_OSXMMEEXCPT)\
-            return iemRaiseSimdFpException(pVCpu); \
-        return iemRaiseUndefinedOpcode(pVCpu); \
     } while (0)
 
@@ -3161 +3155 @@
 #define IEM_MC_IF_FCW_IM() \
     if (pVCpu->cpum.GstCtx.XState.x87.FCW & X86_FCW_IM) {
-#define IEM_MC_IF_MXCSR_XCPT_PENDING() \
-        if ((  ~((pVCpu->cpum.GstCtx.XState.x87.MXCSR & X86_MXCSR_XCPT_MASK) >> X86_MXCSR_XCPT_MASK_SHIFT) \
-             & (pVCpu->cpum.GstCtx.XState.x87.MXCSR & X86_MXCSR_XCPT_FLAGS)) != 0) {
 
 #define IEM_MC_ELSE()                                   } else {