JitArm64: Implement mcrxr.

Source/Core/Core/PowerPC/JitArm64/Jit.h

@@ -99,6 +99,7 @@ public:
   void mtmsr(UGeckoInstruction inst);
   void mfmsr(UGeckoInstruction inst);
   void mcrf(UGeckoInstruction inst);
+  void mcrxr(UGeckoInstruction inst);
   void mfsr(UGeckoInstruction inst);
   void mtsr(UGeckoInstruction inst);
   void mfsrin(UGeckoInstruction inst);

Source/Core/Core/PowerPC/JitArm64/JitArm64_SystemRegisters.cpp

@@ -84,6 +84,36 @@ void JitArm64::mcrf(UGeckoInstruction inst)
   }
 }
 
+void JitArm64::mcrxr(UGeckoInstruction inst)
+{
+  INSTRUCTION_START
+  JITDISABLE(bJITSystemRegistersOff);
+
+  ARM64Reg WA = gpr.GetReg();
+  ARM64Reg XA = EncodeRegTo64(WA);
+  ARM64Reg WB = gpr.GetReg();
+  ARM64Reg XB = EncodeRegTo64(WB);
+
+  // Copy XER[0-3] into CR[inst.CRFD]
+  LDRB(INDEX_UNSIGNED, WA, PPC_REG, PPCSTATE_OFF(xer_ca));
+  LDRB(INDEX_UNSIGNED, WB, PPC_REG, PPCSTATE_OFF(xer_so_ov));
+
+  // [0 SO OV CA]
+  ADD(WA, WA, WB, ArithOption(WB, ST_LSL, 2));
+  // [SO OV CA 0] << 3
+  LSL(WA, WA, 4);
+
+  MOVP2R(XB, m_crTable);
+  LDR(XB, XB, XA);
+  STR(INDEX_UNSIGNED, XB, PPC_REG, PPCSTATE_OFF(cr_val[inst.CRFD]));
+
+  // Clear XER[0-3]
+  STRB(INDEX_UNSIGNED, WZR, PPC_REG, PPCSTATE_OFF(xer_ca));
+  STRB(INDEX_UNSIGNED, WZR, PPC_REG, PPCSTATE_OFF(xer_so_ov));
+
+  gpr.Unlock(WA, WB);
+}
+
 void JitArm64::mfsr(UGeckoInstruction inst)
 {
   INSTRUCTION_START

Source/Core/Core/PowerPC/JitArm64/JitArm64_Tables.cpp

@@ -303,7 +303,7 @@ static GekkoOPTemplate table31[] = {
     {339, &JitArm64::mfspr},   // mfspr
     {467, &JitArm64::mtspr},   // mtspr
     {371, &JitArm64::mftb},    // mftb
-    {512, &JitArm64::FallBackToInterpreter},  // mcrxr
+    {512, &JitArm64::mcrxr},   // mcrxr
     {595, &JitArm64::mfsr},    // mfsr
     {659, &JitArm64::mfsrin},  // mfsrin