Changeset 103843 in vbox for trunk/src

Timestamp:

Mar 14, 2024 11:00:29 AM (14 months ago)

Author:

vboxsync

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

162214

Message:

VMM/IEM: Implement native emitter for IEM_MC_FETCH_XREG_U16(), bugref:10614

Location:

trunk/src/VBox/VMM/VMMAll

Files:

• IEMAllInstPython.py (modified) (1 diff)
• IEMAllN8veRecompFuncs.h (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/IEMAllInstPython.py

@@ -3089 +3089 @@
     'IEM_MC_FETCH_SREG_ZX_U64':                                  (McBlock.parseMcGeneric,           False, False, True,  ),
     'IEM_MC_FETCH_XREG_U128':                                    (McBlock.parseMcGeneric,           False, False, False, ),
-    'IEM_MC_FETCH_XREG_U16':                                     (McBlock.parseMcGeneric,           False, False, False, ),
+    'IEM_MC_FETCH_XREG_U16':                                     (McBlock.parseMcGeneric,           False, False, g_fNativeSimd),
     'IEM_MC_FETCH_XREG_U32':                                     (McBlock.parseMcGeneric,           False, False, g_fNativeSimd),
     'IEM_MC_FETCH_XREG_U64':                                     (McBlock.parseMcGeneric,           False, False, g_fNativeSimd),

trunk/src/VBox/VMM/VMMAll/IEMAllN8veRecompFuncs.h

@@ -6839 +6839 @@
 
 
+#define IEM_MC_FETCH_XREG_U16(a_u64Value, a_iXReg, a_iWord) \
+    off = iemNativeEmitSimdFetchXregU16(pReNative, off, a_u64Value, a_iXReg, a_iWord)
+
+/** Emits code for IEM_MC_FETCH_XREG_U16. */
+DECL_INLINE_THROW(uint32_t)
+iemNativeEmitSimdFetchXregU16(PIEMRECOMPILERSTATE pReNative, uint32_t off, uint8_t idxDstVar, uint8_t iXReg, uint8_t iWord)
+{
+    IEMNATIVE_ASSERT_VAR_IDX(pReNative, idxDstVar);
+    IEMNATIVE_ASSERT_VAR_SIZE(pReNative, idxDstVar, sizeof(uint16_t));
+
+    uint8_t const idxSimdRegSrc = iemNativeSimdRegAllocTmpForGuestSimdReg(pReNative, &off, IEMNATIVEGSTSIMDREG_SIMD(iXReg),
+                                                                          kIemNativeGstSimdRegLdStSz_Low128, kIemNativeGstRegUse_ReadOnly);
+
+    iemNativeVarSetKindToStack(pReNative, idxDstVar);
+    uint8_t const idxVarReg = iemNativeVarRegisterAcquire(pReNative, idxDstVar, &off);
+
+    off = iemNativeEmitSimdLoadGprFromVecRegU16(pReNative, off, idxVarReg, idxSimdRegSrc, iWord);
+
+    /* Free but don't flush the source register. */
+    iemNativeSimdRegFreeTmp(pReNative, idxSimdRegSrc);
+    iemNativeVarRegisterRelease(pReNative, idxDstVar);
+
+    return off;
+}
+
+
 #define IEM_MC_STORE_XREG_U64(a_iXReg, a_iQWord, a_u64Value) \
     off = iemNativeEmitSimdStoreXregU64(pReNative, off, a_iXReg, a_u64Value, a_iQWord)