Changeset 103815 in vbox for trunk/include

Timestamp:

Mar 13, 2024 8:13:38 AM (10 months ago)

Author:

vboxsync

Message:

VMM/IEM: Implement native emitter for IEM_MC_BROADCAST_XREG_U64_ZX_VLMAX(), bugref:10614

File:

• trunk/include/iprt/armv8.h (modified) (2 diffs)

trunk/include/iprt/armv8.h

@@ -4119 +4119 @@
  * @param   enmSz       Element size of the source vector register.
  *
- * @note This instruction assumes a 32-bit W<n> register for all noon 64bit vector sizes.
+ * @note This instruction assumes a 32-bit W<n> register for all non 64bit vector sizes.
  */
 DECL_FORCE_INLINE(uint32_t) Armv8A64MkVecInstrIns(uint32_t iVecRegDst, uint32_t iRegSrc, uint8_t idxElem,
@@ -4132 +4132 @@
     return UINT32_C(0x4e001c00)
          | ((uint32_t)idxElem << (16 + enmSz + 1))
+         | (RT_BIT_32(enmSz) << 16)
+         | (iRegSrc << 5)
+         | iVecRegDst;
+}
+
+
+/**
+ * A64: Encodes DUP (vector, register).
+ *
+ * @returns The encoded instruction.
+ * @param   iVecRegDst  The vector register to put the result into.
+ * @param   iRegSrc     The source register (ZR is valid).
+ * @param   enmSz       Element size of the source vector register.
+ * @param   f128Bit     Flag whether the instruction operates on the whole 128-bit of the vector register (true) or
+ *                      just the low 64-bit (false).
+ *
+ * @note This instruction assumes a 32-bit W<n> register for all non 64bit vector sizes.
+ */
+DECL_FORCE_INLINE(uint32_t) Armv8A64MkVecInstrDup(uint32_t iVecRegDst, uint32_t iRegSrc, ARMV8INSTRUMOVINSSZ enmSz,
+                                                  bool f128Bit = true)
+{
+    Assert(iRegSrc < 32); Assert(iVecRegDst < 32);
+    Assert(   (enmSz == kArmv8InstrUmovInsSz_U8)
+           || (enmSz == kArmv8InstrUmovInsSz_U16)
+           || (enmSz == kArmv8InstrUmovInsSz_U32)
+           || (enmSz == kArmv8InstrUmovInsSz_U64));
+
+    return UINT32_C(0x0e000c00)
+         | ((uint32_t)f128Bit << 30)
          | (RT_BIT_32(enmSz) << 16)
          | (iRegSrc << 5)