Add FRINTM (vector) instruction

ChocolArm64/AOpCodeTable.cs

@@ -200,6 +200,7 @@ namespace ChocolArm64
             Set("000111100x1xxxxx100010xxxxxxxxxx", AInstEmit.Fnmul_S,       typeof(AOpCodeSimdReg));
             Set("000111100x100110010000xxxxxxxxxx", AInstEmit.Frinta_S,      typeof(AOpCodeSimd));
             Set("000111100x100101010000xxxxxxxxxx", AInstEmit.Frintm_S,      typeof(AOpCodeSimd));
+            Set("0>0011100<100001100110xxxxxxxxxx", AInstEmit.Frintm_V,      typeof(AOpCodeSimd));
             Set("000111100x100100110000xxxxxxxxxx", AInstEmit.Frintp_S,      typeof(AOpCodeSimd));
             Set("000111100x100111010000xxxxxxxxxx", AInstEmit.Frintx_S,      typeof(AOpCodeSimd));
             Set("000111100x100001110000xxxxxxxxxx", AInstEmit.Fsqrt_S,       typeof(AOpCodeSimd));

ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs

@@ -267,6 +267,14 @@ namespace ChocolArm64.Instruction
             });
         }
 
+        public static void Frintm_V(AILEmitterCtx Context)
+        {
+            EmitVectorUnaryOpF(Context, () =>
+            {
+                EmitUnaryMathCall(Context, nameof(Math.Floor));
+            });
+        }
+
         public static void Frintp_S(AILEmitterCtx Context)
         {
             EmitScalarUnaryOpF(Context, () =>

ChocolArm64/Instruction/AInstEmitSimdHelper.cs

@@ -190,6 +190,11 @@ namespace ChocolArm64.Instruction
             EmitScalarSetF(Context, Op.Rd, SizeF);
         }
 
+        public static void EmitVectorUnaryOpF(AILEmitterCtx Context, Action Emit)
+        {
+            EmitVectorOpF(Context, Emit, OperFlags.Rn);
+        }
+
         public static void EmitVectorBinaryOpF(AILEmitterCtx Context, Action Emit)
         {
             EmitVectorOpF(Context, Emit, OperFlags.RnRm);