2 files changed, 78 insertions, 0 deletions
diff --git a/ARMeilleure/Instructions/InstEmitSimdCvt32.cs b/ARMeilleure/Instructions/InstEmitSimdCvt32.cs
index c76634eb..ba713feb 100644
--- a/ARMeilleure/Instructions/InstEmitSimdCvt32.cs
+++ b/ARMeilleure/Instructions/InstEmitSimdCvt32.cs
@@ -261,6 +261,68 @@ namespace ARMeilleure.Instructions
             }
         }
 
+        public static void Vcvt_TB(ArmEmitterContext context)
+        {
+            OpCode32SimdCvtTB op = (OpCode32SimdCvtTB)context.CurrOp;
+
+            if (Optimizations.UseF16c)
+            {
+                Debug.Assert(!Optimizations.ForceLegacySse);
+
+                if (op.Op)
+                {
+                    Operand res = ExtractScalar(context, op.Size == 1 ? OperandType.FP64 : OperandType.FP32, op.Vm);
+                    if (op.Size == 1)
+                    {
+                        res = context.AddIntrinsic(Intrinsic.X86Cvtsd2ss, context.VectorZero(), res);
+                    }
+                    res = context.AddIntrinsic(Intrinsic.X86Vcvtps2ph, res, Const(X86GetRoundControl(FPRoundingMode.ToNearest)));
+                    res = context.VectorExtract16(res, 0);
+                    InsertScalar16(context, op.Vd, op.T, res);
+                }
+                else
+                {
+                    Operand res = context.VectorCreateScalar(ExtractScalar16(context, op.Vm, op.T));
+                    res = context.AddIntrinsic(Intrinsic.X86Vcvtph2ps, res);
+                    if (op.Size == 1)
+                    {
+                        res = context.AddIntrinsic(Intrinsic.X86Cvtss2sd, context.VectorZero(), res);
+                    }
+                    res = context.VectorExtract(op.Size == 1 ? OperandType.I64 : OperandType.I32, res, 0);
+                    InsertScalar(context, op.Vd, res);
+                }
+            }
+            else
+            {
+                if (op.Op)
+                {
+                    // Convert to half
+
+                    Operand src = ExtractScalar(context, op.Size == 1 ? OperandType.FP64 : OperandType.FP32, op.Vm);
+
+                    MethodInfo method = op.Size == 1
+                        ? typeof(SoftFloat64_16).GetMethod(nameof(SoftFloat64_16.FPConvert))
+                        : typeof(SoftFloat32_16).GetMethod(nameof(SoftFloat32_16.FPConvert));
+                    Operand res = context.Call(method, src);
+
+                    InsertScalar16(context, op.Vd, op.T, res);
+                }
+                else
+                {
+                    // Convert from half
+
+                    Operand src = ExtractScalar16(context, op.Vm, op.T);
+
+                    MethodInfo method = op.Size == 1
+                        ? typeof(SoftFloat16_64).GetMethod(nameof(SoftFloat16_64.FPConvert))
+                        : typeof(SoftFloat16_32).GetMethod(nameof(SoftFloat16_32.FPConvert));
+                    Operand res = context.Call(method, src);
+
+                    InsertScalar(context, op.Vd, res);
+                }
+            }
+        }
+
         // VRINTA/M/N/P (floating-point).
         public static void Vrint_RM(ArmEmitterContext context)
         {
diff --git a/ARMeilleure/Instructions/InstEmitSimdHelper32.cs b/ARMeilleure/Instructions/InstEmitSimdHelper32.cs
index 0620ea33..84b01d05 100644
--- a/ARMeilleure/Instructions/InstEmitSimdHelper32.cs
+++ b/ARMeilleure/Instructions/InstEmitSimdHelper32.cs
@@ -70,6 +70,22 @@ namespace ARMeilleure.Instructions
             context.Copy(vec, insert);
         }
 
+        public static Operand ExtractScalar16(ArmEmitterContext context, int reg, bool top)
+        {
+            return context.VectorExtract16(GetVecA32(reg >> 2), ((reg & 3) << 1) | (top ? 1 : 0));
+        }
+
+        public static void InsertScalar16(ArmEmitterContext context, int reg, bool top, Operand value)
+        {
+            Debug.Assert(value.Type == OperandType.FP32 || value.Type == OperandType.I32);
+
+            Operand vec, insert;
+            vec = GetVecA32(reg >> 2);
+            insert = context.VectorInsert16(vec, value, ((reg & 3) << 1) | (top ? 1 : 0));
+
+            context.Copy(vec, insert);
+        }
+
         public static Operand ExtractElement(ArmEmitterContext context, int reg, int size, bool signed)
         {
             return EmitVectorExtract32(context, reg >> (4 - size), reg & ((16 >> size) - 1), size, signed);