diff --git a/ChocolArm64/AOpCodeTable.cs b/ChocolArm64/AOpCodeTable.cs
index ff2796b8..d4d6dd7c 100644
--- a/ChocolArm64/AOpCodeTable.cs
+++ b/ChocolArm64/AOpCodeTable.cs
@@ -144,54 +144,55 @@ namespace ChocolArm64
             Set("01011110000xxxxx000001xxxxxxxxxx", AInstEmit.Dup_S,         typeof(AOpCodeSimdIns));
             Set("0x001110000xxxxx000001xxxxxxxxxx", AInstEmit.Dup_V,         typeof(AOpCodeSimdIns));
             Set("0x101110001xxxxx000111xxxxxxxxxx", AInstEmit.Eor_V,         typeof(AOpCodeSimdReg));
-            Set("00011110xx100000110000xxxxxxxxxx", AInstEmit.Fabs_S,        typeof(AOpCodeSimd));
-            Set("00011110xx1xxxxx001010xxxxxxxxxx", AInstEmit.Fadd_S,        typeof(AOpCodeSimdReg));
+            Set("000111100x100000110000xxxxxxxxxx", AInstEmit.Fabs_S,        typeof(AOpCodeSimd));
+            Set("000111100x1xxxxx001010xxxxxxxxxx", AInstEmit.Fadd_S,        typeof(AOpCodeSimdReg));
             Set("0>0011100<1xxxxx110101xxxxxxxxxx", AInstEmit.Fadd_V,        typeof(AOpCodeSimdReg));
-            Set("00011110xx1xxxxxxxxx01xxxxx0xxxx", AInstEmit.Fccmp_S,       typeof(AOpCodeSimdFcond));
-            Set("00011110xx1xxxxxxxxx01xxxxx1xxxx", AInstEmit.Fccmpe_S,      typeof(AOpCodeSimdFcond));
-            Set("00011110xx1xxxxx001000xxxxx0x000", AInstEmit.Fcmp_S,        typeof(AOpCodeSimdReg));
-            Set("00011110xx1xxxxx001000xxxxx1x000", AInstEmit.Fcmpe_S,       typeof(AOpCodeSimdReg));
-            Set("00011110xx1xxxxxxxxx11xxxxxxxxxx", AInstEmit.Fcsel_S,       typeof(AOpCodeSimdFcond));
-            Set("00011110xx10001xx10000xxxxxxxxxx", AInstEmit.Fcvt_S,        typeof(AOpCodeSimd));
-            Set("x0011110xx100100000000xxxxxxxxxx", AInstEmit.Fcvtas_Gp,     typeof(AOpCodeSimdCvt));
-            Set("x0011110xx100101000000xxxxxxxxxx", AInstEmit.Fcvtau_Gp,     typeof(AOpCodeSimdCvt));
-            Set("x0011110xx110000000000xxxxxxxxxx", AInstEmit.Fcvtms_Gp,     typeof(AOpCodeSimdCvt));
-            Set("x0011110xx101000000000xxxxxxxxxx", AInstEmit.Fcvtps_Gp,     typeof(AOpCodeSimdCvt));
-            Set("x0011110xx111000000000xxxxxxxxxx", AInstEmit.Fcvtzs_Gp,     typeof(AOpCodeSimdCvt));
-            Set("x0011110xx011000xxxxxxxxxxxxxxxx", AInstEmit.Fcvtzs_Gp_Fix, typeof(AOpCodeSimdCvt));
+            Set("000111100x1xxxxxxxxx01xxxxx0xxxx", AInstEmit.Fccmp_S,       typeof(AOpCodeSimdFcond));
+            Set("000111100x1xxxxxxxxx01xxxxx1xxxx", AInstEmit.Fccmpe_S,      typeof(AOpCodeSimdFcond));
+            Set("000111100x1xxxxx001000xxxxx0x000", AInstEmit.Fcmp_S,        typeof(AOpCodeSimdReg));
+            Set("000111100x1xxxxx001000xxxxx1x000", AInstEmit.Fcmpe_S,       typeof(AOpCodeSimdReg));
+            Set("000111100x1xxxxxxxxx11xxxxxxxxxx", AInstEmit.Fcsel_S,       typeof(AOpCodeSimdFcond));
+            Set("000111100x10001xx10000xxxxxxxxxx", AInstEmit.Fcvt_S,        typeof(AOpCodeSimd));
+            Set("x00111100x100100000000xxxxxxxxxx", AInstEmit.Fcvtas_Gp,     typeof(AOpCodeSimdCvt));
+            Set("x00111100x100101000000xxxxxxxxxx", AInstEmit.Fcvtau_Gp,     typeof(AOpCodeSimdCvt));
+            Set("x00111100x110000000000xxxxxxxxxx", AInstEmit.Fcvtms_Gp,     typeof(AOpCodeSimdCvt));
+            Set("x00111100x101000000000xxxxxxxxxx", AInstEmit.Fcvtps_Gp,     typeof(AOpCodeSimdCvt));
+            Set("x00111100x111000000000xxxxxxxxxx", AInstEmit.Fcvtzs_Gp,     typeof(AOpCodeSimdCvt));
+            Set("x00111100x011000xxxxxxxxxxxxxxxx", AInstEmit.Fcvtzs_Gp_Fix, typeof(AOpCodeSimdCvt));
             Set("0>0011101<100001101110xxxxxxxxxx", AInstEmit.Fcvtzs_V,      typeof(AOpCodeSimd));
             Set("0x0011110>>xxxxx111111xxxxxxxxxx", AInstEmit.Fcvtzs_V,      typeof(AOpCodeSimdShImm));
-            Set("x0011110xx111001000000xxxxxxxxxx", AInstEmit.Fcvtzu_Gp,     typeof(AOpCodeSimdCvt));
-            Set("x0011110xx011001xxxxxxxxxxxxxxxx", AInstEmit.Fcvtzu_Gp_Fix, typeof(AOpCodeSimdCvt));
+            Set("x00111100x111001000000xxxxxxxxxx", AInstEmit.Fcvtzu_Gp,     typeof(AOpCodeSimdCvt));
+            Set("x00111100x011001xxxxxxxxxxxxxxxx", AInstEmit.Fcvtzu_Gp_Fix, typeof(AOpCodeSimdCvt));
             Set("0>1011101<100001101110xxxxxxxxxx", AInstEmit.Fcvtzu_V,      typeof(AOpCodeSimd));
             Set("0x1011110>>xxxxx111111xxxxxxxxxx", AInstEmit.Fcvtzu_V,      typeof(AOpCodeSimdShImm));            
-            Set("00011110xx1xxxxx000110xxxxxxxxxx", AInstEmit.Fdiv_S,        typeof(AOpCodeSimdReg));
+            Set("000111100x1xxxxx000110xxxxxxxxxx", AInstEmit.Fdiv_S,        typeof(AOpCodeSimdReg));
             Set("0>1011100<1xxxxx111111xxxxxxxxxx", AInstEmit.Fdiv_V,        typeof(AOpCodeSimdReg));
-            Set("00011111xx0xxxxx0xxxxxxxxxxxxxxx", AInstEmit.Fmadd_S,       typeof(AOpCodeSimdReg));
-            Set("00011110xx1xxxxx010010xxxxxxxxxx", AInstEmit.Fmax_S,        typeof(AOpCodeSimdReg));
-            Set("00011110xx1xxxxx011010xxxxxxxxxx", AInstEmit.Fmaxnm_S,      typeof(AOpCodeSimdReg));
-            Set("00011110xx1xxxxx010110xxxxxxxxxx", AInstEmit.Fmin_S,        typeof(AOpCodeSimdReg));
-            Set("00011110xx1xxxxx011110xxxxxxxxxx", AInstEmit.Fminnm_S,      typeof(AOpCodeSimdReg));
+            Set("000111110x0xxxxx0xxxxxxxxxxxxxxx", AInstEmit.Fmadd_S,       typeof(AOpCodeSimdReg));
+            Set("000111100x1xxxxx010010xxxxxxxxxx", AInstEmit.Fmax_S,        typeof(AOpCodeSimdReg));
+            Set("000111100x1xxxxx011010xxxxxxxxxx", AInstEmit.Fmaxnm_S,      typeof(AOpCodeSimdReg));
+            Set("000111100x1xxxxx010110xxxxxxxxxx", AInstEmit.Fmin_S,        typeof(AOpCodeSimdReg));
+            Set("000111100x1xxxxx011110xxxxxxxxxx", AInstEmit.Fminnm_S,      typeof(AOpCodeSimdReg));
             Set("0>0011100<1xxxxx110011xxxxxxxxxx", AInstEmit.Fmla_V,        typeof(AOpCodeSimdReg));
             Set("0x0011111<<xxxxx0001x0xxxxxxxxxx", AInstEmit.Fmla_Ve,       typeof(AOpCodeSimdRegElem));
-            Set("00011110xx100000010000xxxxxxxxxx", AInstEmit.Fmov_S,        typeof(AOpCodeSimd));
+            Set("000111100x100000010000xxxxxxxxxx", AInstEmit.Fmov_S,        typeof(AOpCodeSimd));
             Set("00011110xx1xxxxxxxx100xxxxxxxxxx", AInstEmit.Fmov_Si,       typeof(AOpCodeSimdFmov));
             Set("0xx0111100000xxx111101xxxxxxxxxx", AInstEmit.Fmov_V,        typeof(AOpCodeSimdImm));
-            Set("x0011110xx100110000000xxxxxxxxxx", AInstEmit.Fmov_Ftoi,     typeof(AOpCodeSimdCvt));
-            Set("x0011110xx100111000000xxxxxxxxxx", AInstEmit.Fmov_Itof,     typeof(AOpCodeSimdCvt));
-            Set("x0011110xx101110000000xxxxxxxxxx", AInstEmit.Fmov_Ftoi1,    typeof(AOpCodeSimdCvt));
-            Set("x0011110xx101111000000xxxxxxxxxx", AInstEmit.Fmov_Itof1,    typeof(AOpCodeSimdCvt));
-            Set("00011111xx0xxxxx1xxxxxxxxxxxxxxx", AInstEmit.Fmsub_S,       typeof(AOpCodeSimdReg));
-            Set("00011110xx1xxxxx000010xxxxxxxxxx", AInstEmit.Fmul_S,        typeof(AOpCodeSimdReg));
+            Set("x00111100x100110000000xxxxxxxxxx", AInstEmit.Fmov_Ftoi,     typeof(AOpCodeSimdCvt));
+            Set("x00111100x100111000000xxxxxxxxxx", AInstEmit.Fmov_Itof,     typeof(AOpCodeSimdCvt));
+            Set("x00111100x101110000000xxxxxxxxxx", AInstEmit.Fmov_Ftoi1,    typeof(AOpCodeSimdCvt));
+            Set("x00111100x101111000000xxxxxxxxxx", AInstEmit.Fmov_Itof1,    typeof(AOpCodeSimdCvt));
+            Set("000111110x0xxxxx1xxxxxxxxxxxxxxx", AInstEmit.Fmsub_S,       typeof(AOpCodeSimdReg));
+            Set("000111100x1xxxxx000010xxxxxxxxxx", AInstEmit.Fmul_S,        typeof(AOpCodeSimdReg));
             Set("0>1011100<1xxxxx110111xxxxxxxxxx", AInstEmit.Fmul_V,        typeof(AOpCodeSimdReg));
             Set("0x0011111<<xxxxx1001x0xxxxxxxxxx", AInstEmit.Fmul_Ve,       typeof(AOpCodeSimdRegElem));
-            Set("00011110xx100001010000xxxxxxxxxx", AInstEmit.Fneg_S,        typeof(AOpCodeSimdReg));
-            Set("00011111xx1xxxxx1xxxxxxxxxxxxxxx", AInstEmit.Fnmsub_S,      typeof(AOpCodeSimdReg));
-            Set("00011110xx1xxxxx100010xxxxxxxxxx", AInstEmit.Fnmul_S,       typeof(AOpCodeSimdReg));
-            Set("00011110xx100110010000xxxxxxxxxx", AInstEmit.Frinta_S,      typeof(AOpCodeSimd));
-            Set("00011110xx100101010000xxxxxxxxxx", AInstEmit.Frintm_S,      typeof(AOpCodeSimd));
-            Set("00011110xx100001110000xxxxxxxxxx", AInstEmit.Fsqrt_S,       typeof(AOpCodeSimd));
-            Set("00011110xx1xxxxx001110xxxxxxxxxx", AInstEmit.Fsub_S,        typeof(AOpCodeSimdReg));
+            Set("000111100x100001010000xxxxxxxxxx", AInstEmit.Fneg_S,        typeof(AOpCodeSimdReg));
+            Set("000111110x1xxxxx1xxxxxxxxxxxxxxx", AInstEmit.Fnmsub_S,      typeof(AOpCodeSimdReg));
+            Set("000111100x1xxxxx100010xxxxxxxxxx", AInstEmit.Fnmul_S,       typeof(AOpCodeSimdReg));
+            Set("000111100x100110010000xxxxxxxxxx", AInstEmit.Frinta_S,      typeof(AOpCodeSimd));
+            Set("000111100x100101010000xxxxxxxxxx", AInstEmit.Frintm_S,      typeof(AOpCodeSimd));
+            Set("000111100x100100110000xxxxxxxxxx", AInstEmit.Frintp_S,      typeof(AOpCodeSimd));
+            Set("000111100x100001110000xxxxxxxxxx", AInstEmit.Fsqrt_S,       typeof(AOpCodeSimd));
+            Set("000111100x1xxxxx001110xxxxxxxxxx", AInstEmit.Fsub_S,        typeof(AOpCodeSimdReg));
             Set("0>0011101<1xxxxx110101xxxxxxxxxx", AInstEmit.Fsub_V,        typeof(AOpCodeSimdReg));
             Set("01001110000xxxxx000111xxxxxxxxxx", AInstEmit.Ins_Gp,        typeof(AOpCodeSimdIns));
             Set("01101110000xxxxx0xxxx1xxxxxxxxxx", AInstEmit.Ins_V,         typeof(AOpCodeSimdIns));
diff --git a/ChocolArm64/Decoder/ADecoder.cs b/ChocolArm64/Decoder/ADecoder.cs
index 06a535c1..a3f44e47 100644
--- a/ChocolArm64/Decoder/ADecoder.cs
+++ b/ChocolArm64/Decoder/ADecoder.cs
@@ -1,6 +1,7 @@
 using ChocolArm64.Instruction;
 using ChocolArm64.Memory;
 using System;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Reflection.Emit;
 
@@ -8,6 +9,15 @@ namespace ChocolArm64.Decoder
 {
     static class ADecoder
     {
+        private delegate object OpActivator(AInst Inst, long Position, int OpCode);
+
+        private static ConcurrentDictionary<Type, OpActivator> OpActivators;
+
+        static ADecoder()
+        {
+            OpActivators = new ConcurrentDictionary<Type, OpActivator>();
+        }
+
         public static (ABlock[] Graph, ABlock Root) DecodeSubroutine(ATranslator Translator, long Start)
         {
             Dictionary<long, ABlock> Visited    = new Dictionary<long, ABlock>();
@@ -165,43 +175,39 @@ namespace ChocolArm64.Decoder
 
             if (Inst.Type != null)
             {
-                DecodedOpCode = CreateOpCode(Inst.Type, Inst, Position, OpCode);
+                DecodedOpCode = MakeOpCode(Inst.Type, Inst, Position, OpCode);
             }
 
             return DecodedOpCode;
         }
 
-        private delegate object OpActivator(AInst Inst, long Position, int OpCode);
-
-        private static Dictionary<Type, OpActivator> Activators = new Dictionary<Type, OpActivator>();
-
-        private static AOpCode CreateOpCode(Type Type, AInst Inst, long Position, int OpCode)
+        private static AOpCode MakeOpCode(Type Type, AInst Inst, long Position, int OpCode)
         {
             if (Type == null)
             {
                 throw new ArgumentNullException(nameof(Type));
             }
 
-            if (!Activators.TryGetValue(Type, out OpActivator CreateInstance))
-            {
-                Type[] ArgTypes = new Type[] { typeof(AInst), typeof(long), typeof(int) };
-
-                DynamicMethod Mthd = new DynamicMethod($"{Type.Name}_Create", Type, ArgTypes);
-
-                ILGenerator Generator = Mthd.GetILGenerator();
-
-                Generator.Emit(OpCodes.Ldarg_0);
-                Generator.Emit(OpCodes.Ldarg_1);
-                Generator.Emit(OpCodes.Ldarg_2);
-                Generator.Emit(OpCodes.Newobj, Type.GetConstructor(ArgTypes));
-                Generator.Emit(OpCodes.Ret);
-
-                CreateInstance = (OpActivator)Mthd.CreateDelegate(typeof(OpActivator));
-
-                Activators.Add(Type, CreateInstance);
-            }
+            OpActivator CreateInstance = OpActivators.GetOrAdd(Type, CacheOpActivator);
 
             return (AOpCode)CreateInstance(Inst, Position, OpCode);
         }
+
+        private static OpActivator CacheOpActivator(Type Type)
+        {
+            Type[] ArgTypes = new Type[] { typeof(AInst), typeof(long), typeof(int) };
+
+            DynamicMethod Mthd = new DynamicMethod($"Make{Type.Name}", Type, ArgTypes);
+
+            ILGenerator Generator = Mthd.GetILGenerator();
+
+            Generator.Emit(OpCodes.Ldarg_0);
+            Generator.Emit(OpCodes.Ldarg_1);
+            Generator.Emit(OpCodes.Ldarg_2);
+            Generator.Emit(OpCodes.Newobj, Type.GetConstructor(ArgTypes));
+            Generator.Emit(OpCodes.Ret);
+
+            return (OpActivator)Mthd.CreateDelegate(typeof(OpActivator));
+        }
     }
 }
\ No newline at end of file
diff --git a/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs b/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
index 21ec11a7..6665f219 100644
--- a/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
+++ b/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
@@ -257,6 +257,14 @@ namespace ChocolArm64.Instruction
             });
         }
 
+        public static void Frintp_S(AILEmitterCtx Context)
+        {
+            EmitScalarUnaryOpF(Context, () =>
+            {
+                EmitUnaryMathCall(Context, nameof(Math.Ceiling));
+            });
+        }
+
         public static void Fsqrt_S(AILEmitterCtx Context)
         {
             EmitScalarUnaryOpF(Context, () =>