Changeset 103822 in vbox for trunk/include

Timestamp:

Mar 13, 2024 11:32:12 AM (10 months ago)

Author:

vboxsync

Message:

VMM/IEM: Implement native emitter for IEM_MC_STORE_YREG_U32_ZX_VLMAX(), bugref:10614

File:

• trunk/include/iprt/x86.h (modified) (1 diff)

trunk/include/iprt/x86.h

@@ -5183 +5183 @@
 /** @} */
 
+/** @name X86_OP_VEX2_XXX - 2-byte VEX prefix helpers.
+ * @{ */
+#define X86_OP_VEX2_BYTE1_P_MASK        0x3
+# define X86_OP_VEX2_BYTE1_P_NO_PRF     0
+# define X86_OP_VEX2_BYTE1_P_066H       1
+# define X86_OP_VEX2_BYTE1_P_0F3H       2
+# define X86_OP_VEX2_BYTE1_P_0F2H       3
+#define X86_OP_VEX2_BYTE1_L             RT_BIT(2)
+#define X86_OP_VEX2_BYTE1_VVVV_MASK     0x78
+#define X86_OP_VEX2_BYTE1_VVVV_SHIFT    3
+#define X86_OP_VEX2_BYTE1_VVVV_NONE     15
+#define X86_OP_VEX2_BYTE1_R             RT_BIT(7)
+
+#define X86_OP_VEX2_BYTE1_MAKE(a_fRegW, a_iSrcReg, a_f256BitAvx, a_fPrf) \
+    (  ((a_fRegW) ? 0 : X86_OP_VEX2_BYTE1_R) \
+     | (~((uint8_t)(a_iSrcReg) & 0xf) << X86_OP_VEX2_BYTE1_VVVV_SHIFT) \
+     | ((a_f256BitAvx) ? X86_OP_VEX2_BYTE1_L : 0) \
+     | ((a_fPrf) & X86_OP_VEX2_BYTE1_P_MASK))
+/** @} */
+
 /** @name X86_OP_VEX3_XXX - 3-byte VEX prefix helpers.
  * @{ */