diff --git a/modules/Nncase.Modules.CPU/CodeGen/CPU/CSourceExtensions.cs b/modules/Nncase.Modules.CPU/CodeGen/CPU/CSourceExtensions.cs
index 6b686a405..9a3344056 100644
--- a/modules/Nncase.Modules.CPU/CodeGen/CPU/CSourceExtensions.cs
+++ b/modules/Nncase.Modules.CPU/CodeGen/CPU/CSourceExtensions.cs
@@ -22,7 +22,8 @@ internal static class CSourceExtensions
         { DataTypes.UInt16, "uint16_t" },
         { DataTypes.UInt32, "uint32_t" },
         { DataTypes.UInt64, "uint64_t" },
-        { DataTypes.Float16, "half" },
+        { DataTypes.Float16, "nncase::half" },
+        { DataTypes.BFloat16, "nncase::bfloat16" },
         { DataTypes.Float32, "float" },
         { DataTypes.Float64, "double" },
         { DataTypes.Float8E4M3, "nncase::float_e4m3_t" },
diff --git a/modules/Nncase.Modules.CPU/CodeGen/CPU/Templates/thread_main.cpp.cshtml b/modules/Nncase.Modules.CPU/CodeGen/CPU/Templates/thread_main.cpp.cshtml
index 33a070c75..2009b54b3 100644
--- a/modules/Nncase.Modules.CPU/CodeGen/CPU/Templates/thread_main.cpp.cshtml
+++ b/modules/Nncase.Modules.CPU/CodeGen/CPU/Templates/thread_main.cpp.cshtml
@@ -9,6 +9,8 @@
 #include <nncase/ntt/runtime.h>
 #include "topo_aware_runtime.h"
 #include <nncase/float8.h>
+#include <nncase/half.h>
+#include <nncase/bfloat16.h>
 @foreach(var (s,i) in Model.Options.MemoryCapacities.Select((s,i) => (s,i)).SkipLast(1)){
 @:uint8_t L@(i+1)Data[@(s)];
 }
diff --git a/modules/Nncase.Modules.CPU/Passes/PassUtility.cs b/modules/Nncase.Modules.CPU/Passes/PassUtility.cs
index b35f347d4..60a258ad9 100644
--- a/modules/Nncase.Modules.CPU/Passes/PassUtility.cs
+++ b/modules/Nncase.Modules.CPU/Passes/PassUtility.cs
@@ -87,15 +87,6 @@ public static bool IsCpuSupported(Op op, Expr expr, IEnumerable<Expr> arguments,
 
                 break;
 
-            case IR.Tensors.Cast cast:
-                var inType = arguments.ToArray()[0].CheckedDataType;
-                if (inType == DataTypes.Float16 || inType == DataTypes.BFloat16 || cast.NewType == DataTypes.Float16 || cast.NewType == DataTypes.BFloat16)
-                {
-                    return false;
-                }
-
-                break;
-
             case IR.Tensors.Expand expand:
                 if (arguments.ToArray()[0].CheckedShape.Rank != arguments.ToArray()[1].CheckedShape.Size)
                 {
diff --git a/modules/Nncase.Modules.CPU/Passes/Rules/CPU/Affine/LowerCast.cs b/modules/Nncase.Modules.CPU/Passes/Rules/CPU/Affine/LowerCast.cs
index 9a7149b8e..6ad638f78 100644
--- a/modules/Nncase.Modules.CPU/Passes/Rules/CPU/Affine/LowerCast.cs
+++ b/modules/Nncase.Modules.CPU/Passes/Rules/CPU/Affine/LowerCast.cs
@@ -35,9 +35,9 @@ public LowerCast(string moduleKind = CPUTarget.Kind)
       _ => true,
       IsWildcard("input") with { TypePattern = HasShape(s => s.Rank > 0 && s.IsFixed, "tileable") });
 
-    private Expr GetReplace(Cast cast, Expr input)
+    private Expr GetReplace(Cast cast, Expr call, Expr input)
     {
-        var outBuffer = input.CheckedType switch
+        var outBuffer = call.CheckedType switch
         {
             TensorType t => IR.F.Buffer.Uninitialized(t.DType, TIR.MemoryLocation.Data, t.Shape.ToValueArray()),
             DistributedType dt => IR.F.Buffer.Uninitialized(dt.TensorType.DType, TIR.MemoryLocation.Data, dt.TensorType.Shape.ToValueArray(), dt.NdSBP, dt.Placement),
diff --git a/src/Nncase.Tests/Targets/UnitTestCPUKernels.cs b/src/Nncase.Tests/Targets/UnitTestCPUKernels.cs
index f2d1fde19..cdf791907 100644
--- a/src/Nncase.Tests/Targets/UnitTestCPUKernels.cs
+++ b/src/Nncase.Tests/Targets/UnitTestCPUKernels.cs
@@ -335,12 +335,15 @@ public async Task TestResizeImage(int[] shape, ImageResizeMode resizeMode, int[]
     }
 
     [Theory]
-    [InlineData(new object[] { new[] { 1, 256, 64, 64 }, Runtime.TypeCode.Float8E4M3, 0 })]
-    public async Task TestPackCast(int[] shape, Nncase.Runtime.TypeCode type, int count)
+    [InlineData(new object[] { new[] { 1, 256, 64, 64 }, Runtime.TypeCode.Float8E4M3, Runtime.TypeCode.Float32, 0 })]
+    [InlineData(new object[] { new[] { 1, 64, 64, 256 }, Runtime.TypeCode.Float16, Runtime.TypeCode.BFloat16, 1 })]
+    [InlineData(new object[] { new[] { 1, 64, 256, 64 }, Runtime.TypeCode.BFloat16, Runtime.TypeCode.Float16, 2 })]
+    public async Task TestPackCast(int[] shape, Nncase.Runtime.TypeCode type1, Nncase.Runtime.TypeCode type2, int count)
     {
         var input = new Var(new TensorType(DataTypes.Float32, shape));
-        var casted = IR.F.Tensors.Cast(input, DataType.FromTypeCode(type));
-        var pre = IR.F.Tensors.Cast(casted, DataTypes.Float32);
+        var casted1 = IR.F.Tensors.Cast(input, DataType.FromTypeCode(type1));
+        var casted2 = IR.F.Tensors.Cast(casted1, DataType.FromTypeCode(type2));
+        var pre = IR.F.Tensors.Cast(casted2, DataTypes.Float32);
 
         var feedDict = new Dictionary<Var, IValue>() {
             { input, IR.F.Random.Normal(DataTypes.Float32, 0, 1, 1, shape).Evaluate() },