Add Sqxtn_S, Sqxtn_V, Uqxtn_S, Uqxtn_V instructions and Tests (6). (#110)

* Update ILGeneratorEx.cs

* Update AOpCodeTable.cs

* Update AInstEmitSimdArithmetic.cs

* Update CpuTestSimd.cs

* Update CpuTestSimdReg.cs

* Update CpuTest.cs

* Update Pseudocode.cs

* Update Instructions.cs

* Update AInstEmitSimdArithmetic.cs

* Update AInstEmitSimdArithmetic.cs

* Update AInstEmitSimdArithmetic.cs

ChocolArm64/AOpCodeTable.cs

@@ -337,6 +337,8 @@ namespace ChocolArm64
             Set("0x001110<<1xxxxx011011xxxxxxxxxx", AInstEmit.Smin_V,        typeof(AOpCodeSimdReg));
             Set("0x001110<<1xxxxx100000xxxxxxxxxx", AInstEmit.Smlal_V,       typeof(AOpCodeSimdReg));
             Set("0x001110<<1xxxxx110000xxxxxxxxxx", AInstEmit.Smull_V,       typeof(AOpCodeSimdReg));
+            Set("01011110<<100001010010xxxxxxxxxx", AInstEmit.Sqxtn_S,       typeof(AOpCodeSimd));
+            Set("0x001110<<100001010010xxxxxxxxxx", AInstEmit.Sqxtn_V,       typeof(AOpCodeSimd));
             Set("0>001110<<1xxxxx010001xxxxxxxxxx", AInstEmit.Sshl_V,        typeof(AOpCodeSimdReg));
             Set("0x00111100>>>xxx101001xxxxxxxxxx", AInstEmit.Sshll_V,       typeof(AOpCodeSimdShImm));
             Set("010111110>>>>xxx000001xxxxxxxxxx", AInstEmit.Sshr_S,        typeof(AOpCodeSimdShImm));
@@ -370,6 +372,8 @@ namespace ChocolArm64
             Set("0x101110<<1xxxxx000001xxxxxxxxxx", AInstEmit.Uhadd_V,       typeof(AOpCodeSimdReg));
             Set("0x001110000xxxxx001111xxxxxxxxxx", AInstEmit.Umov_S,        typeof(AOpCodeSimdIns));
             Set("0x101110<<1xxxxx110000xxxxxxxxxx", AInstEmit.Umull_V,       typeof(AOpCodeSimdReg));
+            Set("01111110<<100001010010xxxxxxxxxx", AInstEmit.Uqxtn_S,       typeof(AOpCodeSimd));
+            Set("0x101110<<100001010010xxxxxxxxxx", AInstEmit.Uqxtn_V,       typeof(AOpCodeSimd));
             Set("0>101110<<1xxxxx010001xxxxxxxxxx", AInstEmit.Ushl_V,        typeof(AOpCodeSimdReg));
             Set("0x10111100>>>xxx101001xxxxxxxxxx", AInstEmit.Ushll_V,       typeof(AOpCodeSimdShImm));
             Set("011111110>>>>xxx000001xxxxxxxxxx", AInstEmit.Ushr_S,        typeof(AOpCodeSimdShImm));

ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs

@@ -205,6 +205,84 @@ namespace ChocolArm64.Instruction
             }
         }
 
+        private static void EmitQxtn(AILEmitterCtx Context, bool Signed, bool Scalar)
+        {
+            AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
+
+            int Elems = (!Scalar ? 8 >> Op.Size : 1);
+            int ESize = 8 << Op.Size;
+
+            int TMaxValue = (Signed ? (1 << (ESize - 1)) - 1 : (int)((1L << ESize) - 1L));
+            int TMinValue = (Signed ? -((1 << (ESize - 1))) : 0);
+
+            int Part = (!Scalar & (Op.RegisterSize == ARegisterSize.SIMD128) ? Elems : 0);
+
+            Context.EmitLdc_I8(0L);
+            Context.EmitSttmp();
+
+            for (int Index = 0; Index < Elems; Index++)
+            {
+                AILLabel LblLe    = new AILLabel();
+                AILLabel LblGeEnd = new AILLabel();
+
+                EmitVectorExtract(Context, Op.Rn, Index, Op.Size + 1, Signed);
+
+                Context.Emit(OpCodes.Dup);
+
+                Context.EmitLdc_I4(TMaxValue);
+                Context.Emit(OpCodes.Conv_U8);
+
+                Context.Emit(Signed ? OpCodes.Ble_S : OpCodes.Ble_Un_S, LblLe);
+
+                Context.Emit(OpCodes.Pop);
+
+                Context.EmitLdc_I4(TMaxValue);
+
+                Context.EmitLdc_I8(0x8000000L);
+                Context.EmitSttmp();
+
+                Context.Emit(OpCodes.Br_S, LblGeEnd);
+
+                Context.MarkLabel(LblLe);
+
+                Context.Emit(OpCodes.Dup);
+
+                Context.EmitLdc_I4(TMinValue);
+                Context.Emit(OpCodes.Conv_I8);
+
+                Context.Emit(Signed ? OpCodes.Bge_S : OpCodes.Bge_Un_S, LblGeEnd);
+
+                Context.Emit(OpCodes.Pop);
+
+                Context.EmitLdc_I4(TMinValue);
+
+                Context.EmitLdc_I8(0x8000000L);
+                Context.EmitSttmp();
+
+                Context.MarkLabel(LblGeEnd);
+
+                if (Scalar)
+                {
+                    EmitVectorZeroLower(Context, Op.Rd);
+                }
+
+                EmitVectorInsert(Context, Op.Rd, Part + Index, Op.Size);
+            }
+
+            if (Part == 0)
+            {
+                EmitVectorZeroUpper(Context, Op.Rd);
+            }
+
+            Context.EmitLdarg(ATranslatedSub.StateArgIdx);
+            Context.EmitLdarg(ATranslatedSub.StateArgIdx);
+            Context.EmitCallPropGet(typeof(AThreadState), nameof(AThreadState.Fpsr));
+            Context.EmitLdtmp();
+            Context.Emit(OpCodes.Conv_I4);
+            Context.Emit(OpCodes.Or);
+            Context.EmitCallPropSet(typeof(AThreadState), nameof(AThreadState.Fpsr));
+        }
+
         public static void Fabd_S(AILEmitterCtx Context)
         {
             EmitScalarBinaryOpF(Context, () =>
@@ -971,6 +1049,16 @@ namespace ChocolArm64.Instruction
             EmitVectorWidenRnRmBinaryOpSx(Context, () => Context.Emit(OpCodes.Mul));
         }
 
+        public static void Sqxtn_S(AILEmitterCtx Context)
+        {
+            EmitQxtn(Context, Signed: true, Scalar: true);
+        }
+
+        public static void Sqxtn_V(AILEmitterCtx Context)
+        {
+            EmitQxtn(Context, Signed: true, Scalar: false);
+        }
+
         public static void Sub_S(AILEmitterCtx Context)
         {
             EmitScalarBinaryOpZx(Context, () => Context.Emit(OpCodes.Sub));
@@ -1049,5 +1137,15 @@ namespace ChocolArm64.Instruction
         {
             EmitVectorWidenRnRmBinaryOpZx(Context, () => Context.Emit(OpCodes.Mul));
         }
+
+        public static void Uqxtn_S(AILEmitterCtx Context)
+        {
+            EmitQxtn(Context, Signed: false, Scalar: true);
+        }
+
+        public static void Uqxtn_V(AILEmitterCtx Context)
+        {
+            EmitQxtn(Context, Signed: false, Scalar: false);
+        }
     }
 }

ChocolArm64/Translation/ILGeneratorEx.cs

@@ -6,7 +6,7 @@ namespace ChocolArm64
 
     static class ILGeneratorEx
     {
-        public static void EmitLdc_I4(this ILGenerator Generator,int Value)
+        public static void EmitLdc_I4(this ILGenerator Generator, int Value)
         {
             switch (Value)
             {
@@ -126,4 +126,4 @@ namespace ChocolArm64
             }         
         }
     }
-}
+}

Ryujinx.Tests/Cpu/CpuTest.cs

@@ -55,7 +55,8 @@ namespace Ryujinx.Tests.Cpu
 
         protected void SetThreadState(ulong X0 = 0, ulong X1 = 0, ulong X2 = 0, ulong X3 = 0, ulong X31 = 0,
                                       AVec V0 = default(AVec), AVec V1 = default(AVec), AVec V2 = default(AVec),
-                                      bool Overflow = false, bool Carry = false, bool Zero = false, bool Negative = false, int Fpcr = 0x0)
+                                      bool Overflow = false, bool Carry = false, bool Zero = false, bool Negative = false,
+                                      int Fpcr = 0x0, int Fpsr = 0x0)
         {
             Thread.ThreadState.X0 = X0;
             Thread.ThreadState.X1 = X1;
@@ -70,6 +71,7 @@ namespace Ryujinx.Tests.Cpu
             Thread.ThreadState.Zero = Zero;
             Thread.ThreadState.Negative = Negative;
             Thread.ThreadState.Fpcr = Fpcr;
+            Thread.ThreadState.Fpsr = Fpsr;
         }
 
         protected void ExecuteOpcodes()
@@ -92,12 +94,13 @@ namespace Ryujinx.Tests.Cpu
         protected AThreadState SingleOpcode(uint Opcode,
                                             ulong X0 = 0, ulong X1 = 0, ulong X2 = 0, ulong X3 = 0, ulong X31 = 0,
                                             AVec V0 = default(AVec), AVec V1 = default(AVec), AVec V2 = default(AVec),
-                                            bool Overflow = false, bool Carry = false, bool Zero = false, bool Negative = false, int Fpcr = 0x0)
+                                            bool Overflow = false, bool Carry = false, bool Zero = false, bool Negative = false,
+                                            int Fpcr = 0x0, int Fpsr = 0x0)
         {
             this.Opcode(Opcode);
             this.Opcode(0xD4200000); // BRK #0
             this.Opcode(0xD65F03C0); // RET
-            SetThreadState(X0, X1, X2, X3, X31, V0, V1, V2, Overflow, Carry, Zero, Negative, Fpcr);
+            SetThreadState(X0, X1, X2, X3, X31, V0, V1, V2, Overflow, Carry, Zero, Negative, Fpcr, Fpsr);
             ExecuteOpcodes();
 
             return GetThreadState();

Ryujinx.Tests/Cpu/CpuTestSimd.cs

@@ -26,6 +26,23 @@ namespace Ryujinx.Tests.Cpu
                                  0x8000000000000000ul, 0xFFFFFFFFFFFFFFFFul };
         }
 
+        private static ulong[] _1H1S1D_()
+        {
+            return new ulong[] { 0x0000000000000000ul, 0x0000000000007FFFul,
+                                 0x0000000000008000ul, 0x000000000000FFFFul,
+                                 0x000000007FFFFFFFul, 0x0000000080000000ul,
+                                 0x00000000FFFFFFFFul, 0x7FFFFFFFFFFFFFFFul,
+                                 0x8000000000000000ul, 0xFFFFFFFFFFFFFFFFul };
+        }
+
+        private static ulong[] _4H2S1D_()
+        {
+            return new ulong[] { 0x0000000000000000ul, 0x7FFF7FFF7FFF7FFFul,
+                                 0x8000800080008000ul, 0x7FFFFFFF7FFFFFFFul,
+                                 0x8000000080000000ul, 0x7FFFFFFFFFFFFFFFul,
+                                 0x8000000000000000ul, 0xFFFFFFFFFFFFFFFFul };
+        }
+
         private static ulong[] _8B4H_()
         {
             return new ulong[] { 0x0000000000000000ul, 0x7F7F7F7F7F7F7F7Ful,
@@ -64,8 +81,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(1, new Bits(A));
             SimdFp.Abs_S(Op[23, 22], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Description("ABS <Vd>.<T>, <Vn>.<T>")]
@@ -83,8 +103,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(1, new Bits(A));
             SimdFp.Abs_V(Op[30], Op[23, 22], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("ABS <Vd>.<T>, <Vn>.<T>")]
@@ -149,8 +172,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(1, new Bits(A));
             SimdFp.Addv_V(Op[30], Op[23, 22], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("ADDV <V><d>, <Vn>.<T>")]
@@ -194,8 +220,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(1, new Bits(A));
             SimdFp.Cls_V(Op[30], Op[23, 22], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("CLS <Vd>.<T>, <Vn>.<T>")]
@@ -236,8 +265,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(1, new Bits(A));
             SimdFp.Clz_V(Op[30], Op[23, 22], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("CLZ <Vd>.<T>, <Vn>.<T>")]
@@ -276,8 +308,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(1, new Bits(A));
             SimdFp.Neg_S(Op[23, 22], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Description("NEG <Vd>.<T>, <Vn>.<T>")]
@@ -295,8 +330,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(1, new Bits(A));
             SimdFp.Neg_V(Op[30], Op[23, 22], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("NEG <Vd>.<T>, <Vn>.<T>")]
@@ -321,6 +359,158 @@ namespace Ryujinx.Tests.Cpu
                 Assert.That(ThreadState.V0.X1, Is.EqualTo(AArch64.Vpart(64, 0, 1).ToUInt64()));
             });
         }
+
+        [Test, Description("SQXTN <Vb><d>, <Va><n>")]
+        public void Sqxtn_S_HB_SH_DS([ValueSource("_1H1S1D_")] [Random(1)] ulong A,
+                                     [Values(0b00u, 0b01u, 0b10u)] uint size) // <HB, SH, DS>
+        {
+            uint Opcode = 0x5E214820; // SQXTN B0, H1
+            Opcode |= ((size & 3) << 22);
+            Bits Op = new Bits(Opcode);
+
+            AVec V0 = new AVec { X0 = TestContext.CurrentContext.Random.NextULong(),
+                                 X1 = TestContext.CurrentContext.Random.NextULong() };
+            AVec V1 = new AVec { X0 = A };
+            AThreadState ThreadState = SingleOpcode(Opcode, V0: V0, V1: V1);
+
+            AArch64.Vpart(0, 0, new Bits(TestContext.CurrentContext.Random.NextULong()));
+            AArch64.V(1, new Bits(A));
+            SimdFp.Sqxtn_S(Op[23, 22], Op[9, 5], Op[4, 0]);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
+            Assert.That(((ThreadState.Fpsr >> 27) & 1) != 0, Is.EqualTo(Shared.FPSR[27])); // FIXME: Temporary solution.
+        }
+
+        [Test, Pairwise, Description("SQXTN{2} <Vd>.<Tb>, <Vn>.<Ta>")]
+        public void Sqxtn_V_8H8B_4S4H_2D2S([ValueSource("_4H2S1D_")] [Random(1)] ulong A0,
+                                           [ValueSource("_4H2S1D_")] [Random(1)] ulong A1,
+                                           [Values(0b00u, 0b01u, 0b10u)] uint size) // <8H8B, 4S4H, 2D2S>
+        {
+            uint Opcode = 0x0E214820; // SQXTN V0.8B, V1.8H
+            Opcode |= ((size & 3) << 22);
+            Bits Op = new Bits(Opcode);
+
+            AVec V0 = new AVec { X1 = TestContext.CurrentContext.Random.NextULong() };
+            AVec V1 = new AVec { X0 = A0, X1 = A1 };
+            AThreadState ThreadState = SingleOpcode(Opcode, V0: V0, V1: V1);
+
+            AArch64.Vpart(1, 0, new Bits(A0));
+            AArch64.Vpart(1, 1, new Bits(A1));
+            SimdFp.Sqxtn_V(Op[30], Op[23, 22], Op[9, 5], Op[4, 0]);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
+            Assert.That(((ThreadState.Fpsr >> 27) & 1) != 0, Is.EqualTo(Shared.FPSR[27])); // FIXME: Temporary solution.
+        }
+
+        [Test, Pairwise, Description("SQXTN{2} <Vd>.<Tb>, <Vn>.<Ta>")]
+        public void Sqxtn_V_8H16B_4S8H_2D4S([ValueSource("_4H2S1D_")] [Random(1)] ulong A0,
+                                            [ValueSource("_4H2S1D_")] [Random(1)] ulong A1,
+                                            [Values(0b00u, 0b01u, 0b10u)] uint size) // <8H16B, 4S8H, 2D4S>
+        {
+            uint Opcode = 0x4E214820; // SQXTN2 V0.16B, V1.8H
+            Opcode |= ((size & 3) << 22);
+            Bits Op = new Bits(Opcode);
+
+            ulong _X0 = TestContext.CurrentContext.Random.NextULong();
+            AVec V0 = new AVec { X0 = _X0 };
+            AVec V1 = new AVec { X0 = A0, X1 = A1 };
+            AThreadState ThreadState = SingleOpcode(Opcode, V0: V0, V1: V1);
+
+            AArch64.Vpart(1, 0, new Bits(A0));
+            AArch64.Vpart(1, 1, new Bits(A1));
+            SimdFp.Sqxtn_V(Op[30], Op[23, 22], Op[9, 5], Op[4, 0]);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(_X0));
+                Assert.That(ThreadState.V0.X1, Is.EqualTo(AArch64.Vpart(64, 0, 1).ToUInt64()));
+            });
+            Assert.That(((ThreadState.Fpsr >> 27) & 1) != 0, Is.EqualTo(Shared.FPSR[27])); // FIXME: Temporary solution.
+        }
+
+        [Test, Description("UQXTN <Vb><d>, <Va><n>")]
+        public void Uqxtn_S_HB_SH_DS([ValueSource("_1H1S1D_")] [Random(1)] ulong A,
+                                     [Values(0b00u, 0b01u, 0b10u)] uint size) // <HB, SH, DS>
+        {
+            uint Opcode = 0x7E214820; // UQXTN B0, H1
+            Opcode |= ((size & 3) << 22);
+            Bits Op = new Bits(Opcode);
+
+            AVec V0 = new AVec { X0 = TestContext.CurrentContext.Random.NextULong(),
+                                 X1 = TestContext.CurrentContext.Random.NextULong() };
+            AVec V1 = new AVec { X0 = A };
+            AThreadState ThreadState = SingleOpcode(Opcode, V0: V0, V1: V1);
+
+            AArch64.Vpart(0, 0, new Bits(TestContext.CurrentContext.Random.NextULong()));
+            AArch64.V(1, new Bits(A));
+            SimdFp.Uqxtn_S(Op[23, 22], Op[9, 5], Op[4, 0]);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
+            Assert.That(((ThreadState.Fpsr >> 27) & 1) != 0, Is.EqualTo(Shared.FPSR[27])); // FIXME: Temporary solution.
+        }
+
+        [Test, Pairwise, Description("UQXTN{2} <Vd>.<Tb>, <Vn>.<Ta>")]
+        public void Uqxtn_V_8H8B_4S4H_2D2S([ValueSource("_4H2S1D_")] [Random(1)] ulong A0,
+                                           [ValueSource("_4H2S1D_")] [Random(1)] ulong A1,
+                                           [Values(0b00u, 0b01u, 0b10u)] uint size) // <8H8B, 4S4H, 2D2S>
+        {
+            uint Opcode = 0x2E214820; // UQXTN V0.8B, V1.8H
+            Opcode |= ((size & 3) << 22);
+            Bits Op = new Bits(Opcode);
+
+            AVec V0 = new AVec { X1 = TestContext.CurrentContext.Random.NextULong() };
+            AVec V1 = new AVec { X0 = A0, X1 = A1 };
+            AThreadState ThreadState = SingleOpcode(Opcode, V0: V0, V1: V1);
+
+            AArch64.Vpart(1, 0, new Bits(A0));
+            AArch64.Vpart(1, 1, new Bits(A1));
+            SimdFp.Uqxtn_V(Op[30], Op[23, 22], Op[9, 5], Op[4, 0]);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
+            Assert.That(((ThreadState.Fpsr >> 27) & 1) != 0, Is.EqualTo(Shared.FPSR[27])); // FIXME: Temporary solution.
+        }
+
+        [Test, Pairwise, Description("UQXTN{2} <Vd>.<Tb>, <Vn>.<Ta>")]
+        public void Uqxtn_V_8H16B_4S8H_2D4S([ValueSource("_4H2S1D_")] [Random(1)] ulong A0,
+                                            [ValueSource("_4H2S1D_")] [Random(1)] ulong A1,
+                                            [Values(0b00u, 0b01u, 0b10u)] uint size) // <8H16B, 4S8H, 2D4S>
+        {
+            uint Opcode = 0x6E214820; // UQXTN2 V0.16B, V1.8H
+            Opcode |= ((size & 3) << 22);
+            Bits Op = new Bits(Opcode);
+
+            ulong _X0 = TestContext.CurrentContext.Random.NextULong();
+            AVec V0 = new AVec { X0 = _X0 };
+            AVec V1 = new AVec { X0 = A0, X1 = A1 };
+            AThreadState ThreadState = SingleOpcode(Opcode, V0: V0, V1: V1);
+
+            AArch64.Vpart(1, 0, new Bits(A0));
+            AArch64.Vpart(1, 1, new Bits(A1));
+            SimdFp.Uqxtn_V(Op[30], Op[23, 22], Op[9, 5], Op[4, 0]);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(_X0));
+                Assert.That(ThreadState.V0.X1, Is.EqualTo(AArch64.Vpart(64, 0, 1).ToUInt64()));
+            });
+            Assert.That(((ThreadState.Fpsr >> 27) & 1) != 0, Is.EqualTo(Shared.FPSR[27])); // FIXME: Temporary solution.
+        }
 #endif
     }
 }

Ryujinx.Tests/Cpu/CpuTestSimdReg.cs

@@ -74,8 +74,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Add_S(Op[23, 22], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Description("ADD <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -96,8 +99,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Add_V(Op[30], Op[23, 22], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("ADD <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -205,8 +211,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Addp_V(Op[30], Op[23, 22], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("ADDP <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -253,8 +262,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.And_V(Op[30], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("AND <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -299,8 +311,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Bic_V(Op[30], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("BIC <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -347,8 +362,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Bif_V(Op[30], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("BIF <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -400,8 +418,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Bit_V(Op[30], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("BIT <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -453,8 +474,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Bsl_V(Op[30], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("BSL <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -504,8 +528,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Orn_V(Op[30], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("ORN <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -550,8 +577,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Orr_V(Op[30], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("ORR <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -714,8 +744,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Sub_S(Op[23, 22], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Description("SUB <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]
@@ -736,8 +769,11 @@ namespace Ryujinx.Tests.Cpu
             AArch64.V(2, new Bits(B));
             SimdFp.Sub_V(Op[30], Op[23, 22], Op[20, 16], Op[9, 5], Op[4, 0]);
 
-            Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
-            Assert.That(ThreadState.V0.X1, Is.Zero);
+            Assert.Multiple(() =>
+            {
+                Assert.That(ThreadState.V0.X0, Is.EqualTo(AArch64.V(64, 0).ToUInt64()));
+                Assert.That(ThreadState.V0.X1, Is.Zero);
+            });
         }
 
         [Test, Pairwise, Description("SUB <Vd>.<T>, <Vn>.<T>, <Vm>.<T>")]

Ryujinx.Tests/Cpu/Tester/Instructions.cs

@@ -21,6 +21,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -37,6 +38,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -53,6 +55,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -75,6 +78,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             int container_size = 16;
@@ -113,6 +117,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             int container_size = 32;
@@ -187,6 +192,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits imm;
@@ -225,6 +231,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits imm;
@@ -259,6 +266,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits imm;
@@ -288,6 +296,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits imm;
@@ -312,6 +321,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits imm;
@@ -341,6 +351,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits imm;
@@ -370,6 +381,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits imm;
@@ -409,6 +421,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits imm;
@@ -447,6 +460,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -466,6 +480,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -488,6 +503,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if shift == '11' then ReservedValue(); */
@@ -513,6 +529,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if shift == '11' then ReservedValue(); */
@@ -541,6 +558,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
@@ -564,6 +582,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
@@ -591,6 +610,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             ShiftType shift_type = DecodeShift(op2);
@@ -610,6 +630,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
@@ -635,6 +656,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
@@ -716,6 +738,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
@@ -741,6 +764,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
@@ -764,6 +788,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if N != sf then UnallocatedEncoding(); */
@@ -790,6 +815,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             ShiftType shift_type = DecodeShift(op2);
@@ -811,6 +837,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             ShiftType shift_type = DecodeShift(op2);
@@ -830,6 +857,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
@@ -855,6 +883,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && imm6<5> == '1' then ReservedValue(); */
@@ -880,6 +909,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             ShiftType shift_type = DecodeShift(op2);
@@ -899,6 +929,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -920,6 +951,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -944,6 +976,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -970,6 +1003,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if shift == '11' then ReservedValue(); */
@@ -997,6 +1031,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* if shift == '11' then ReservedValue(); */
@@ -1027,6 +1062,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -1055,6 +1091,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             ExtendType extend_type = DecodeRegExtend(option);
@@ -1086,6 +1123,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             ExtendType extend_type = DecodeRegExtend(option);
@@ -1113,6 +1151,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             ExtendType extend_type = DecodeRegExtend(option);
@@ -1146,6 +1185,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             ExtendType extend_type = DecodeRegExtend(option);
@@ -1176,6 +1216,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             int R;
@@ -1205,6 +1246,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             int R;
@@ -1238,6 +1280,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             int R;
@@ -1267,6 +1310,7 @@ namespace Ryujinx.Tests.Cpu.Tester
         {
             /* Decode */
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits flags = nzcv;
@@ -1288,6 +1332,7 @@ namespace Ryujinx.Tests.Cpu.Tester
         {
             /* Decode */
             int n = (int)UInt(Rn);
+
             int datasize = (sf ? 64 : 32);
 
             Bits flags = nzcv;
@@ -1314,6 +1359,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             Bits flags = nzcv;
@@ -1336,6 +1382,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             /* Decode */
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             Bits flags = nzcv;
@@ -1362,6 +1409,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -1388,6 +1436,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -1414,6 +1463,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -1440,6 +1490,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int d = (int)UInt(Rd);
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -1467,6 +1518,7 @@ namespace Ryujinx.Tests.Cpu.Tester
         {
             /* Decode */
             int d = (int)UInt(Rd);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && hw<1> == '1' then UnallocatedEncoding(); */
@@ -1486,6 +1538,7 @@ namespace Ryujinx.Tests.Cpu.Tester
         {
             /* Decode */
             int d = (int)UInt(Rd);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && hw<1> == '1' then UnallocatedEncoding(); */
@@ -1506,6 +1559,7 @@ namespace Ryujinx.Tests.Cpu.Tester
         {
             /* Decode */
             int d = (int)UInt(Rd);
+
             int datasize = (sf ? 64 : 32);
 
             /* if sf == '0' && hw<1> == '1' then UnallocatedEncoding(); */
@@ -1530,6 +1584,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
             int a = (int)UInt(Ra);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -1550,6 +1605,7 @@ namespace Ryujinx.Tests.Cpu.Tester
             int n = (int)UInt(Rn);
             int m = (int)UInt(Rm);
             int a = (int)UInt(Ra);
+
             int datasize = (sf ? 64 : 32);
 
             /* Operation */
@@ -1983,6 +2039,182 @@ namespace Ryujinx.Tests.Cpu.Tester
 
             V(d, result);
         }
+
+        // https://meriac.github.io/archex/A64_v83A_ISA/sqxtn_advsimd.xml#SQXTN_asisdmisc_N
+        public static void Sqxtn_S(Bits size, Bits Rn, Bits Rd)
+        {
+            bool U = false;
+
+            /* Decode Scalar */
+            int d = (int)UInt(Rd);
+            int n = (int)UInt(Rn);
+
+            /* if size == '11' then ReservedValue(); */
+
+            int esize = 8 << (int)UInt(size);
+            int datasize = esize;
+            int part = 0;
+            int elements = 1;
+
+            bool unsigned = (U == true);
+
+            /* Operation */
+            /* CheckFPAdvSIMDEnabled64(); */
+
+            Bits result = new Bits(datasize);
+            Bits operand = V(2 * datasize, n);
+            Bits element;
+            bool sat;
+
+            for (int e = 0; e <= elements - 1; e++)
+            {
+                element = Elem(operand, e, 2 * esize);
+
+                (Bits _result, bool _sat) = SatQ(Int(element, unsigned), esize, unsigned);
+                Elem(result, e, esize, _result);
+                sat = _sat;
+
+                if (sat)
+                {
+                    /* FPSR.QC = '1'; */
+                    FPSR[27] = true; // FIXME: Temporary solution.
+                }
+            }
+
+            Vpart(d, part, result);
+        }
+
+        // https://meriac.github.io/archex/A64_v83A_ISA/sqxtn_advsimd.xml#SQXTN_asimdmisc_N
+        public static void Sqxtn_V(bool Q, Bits size, Bits Rn, Bits Rd)
+        {
+            bool U = false;
+
+            /* Decode Vector */
+            int d = (int)UInt(Rd);
+            int n = (int)UInt(Rn);
+
+            /* if size == '11' then ReservedValue(); */
+
+            int esize = 8 << (int)UInt(size);
+            int datasize = 64;
+            int part = (int)UInt(Q);
+            int elements = datasize / esize;
+
+            bool unsigned = (U == true);
+
+            /* Operation */
+            /* CheckFPAdvSIMDEnabled64(); */
+
+            Bits result = new Bits(datasize);
+            Bits operand = V(2 * datasize, n);
+            Bits element;
+            bool sat;
+
+            for (int e = 0; e <= elements - 1; e++)
+            {
+                element = Elem(operand, e, 2 * esize);
+
+                (Bits _result, bool _sat) = SatQ(Int(element, unsigned), esize, unsigned);
+                Elem(result, e, esize, _result);
+                sat = _sat;
+
+                if (sat)
+                {
+                    /* FPSR.QC = '1'; */
+                    FPSR[27] = true; // FIXME: Temporary solution.
+                }
+            }
+
+            Vpart(d, part, result);
+        }
+
+        // https://meriac.github.io/archex/A64_v83A_ISA/uqxtn_advsimd.xml#UQXTN_asisdmisc_N
+        public static void Uqxtn_S(Bits size, Bits Rn, Bits Rd)
+        {
+            bool U = true;
+
+            /* Decode Scalar */
+            int d = (int)UInt(Rd);
+            int n = (int)UInt(Rn);
+
+            /* if size == '11' then ReservedValue(); */
+
+            int esize = 8 << (int)UInt(size);
+            int datasize = esize;
+            int part = 0;
+            int elements = 1;
+
+            bool unsigned = (U == true);
+
+            /* Operation */
+            /* CheckFPAdvSIMDEnabled64(); */
+
+            Bits result = new Bits(datasize);
+            Bits operand = V(2 * datasize, n);
+            Bits element;
+            bool sat;
+
+            for (int e = 0; e <= elements - 1; e++)
+            {
+                element = Elem(operand, e, 2 * esize);
+
+                (Bits _result, bool _sat) = SatQ(Int(element, unsigned), esize, unsigned);
+                Elem(result, e, esize, _result);
+                sat = _sat;
+
+                if (sat)
+                {
+                    /* FPSR.QC = '1'; */
+                    FPSR[27] = true; // FIXME: Temporary solution.
+                }
+            }
+
+            Vpart(d, part, result);
+        }
+
+        // https://meriac.github.io/archex/A64_v83A_ISA/uqxtn_advsimd.xml#UQXTN_asimdmisc_N
+        public static void Uqxtn_V(bool Q, Bits size, Bits Rn, Bits Rd)
+        {
+            bool U = true;
+
+            /* Decode Vector */
+            int d = (int)UInt(Rd);
+            int n = (int)UInt(Rn);
+
+            /* if size == '11' then ReservedValue(); */
+
+            int esize = 8 << (int)UInt(size);
+            int datasize = 64;
+            int part = (int)UInt(Q);
+            int elements = datasize / esize;
+
+            bool unsigned = (U == true);
+
+            /* Operation */
+            /* CheckFPAdvSIMDEnabled64(); */
+
+            Bits result = new Bits(datasize);
+            Bits operand = V(2 * datasize, n);
+            Bits element;
+            bool sat;
+
+            for (int e = 0; e <= elements - 1; e++)
+            {
+                element = Elem(operand, e, 2 * esize);
+
+                (Bits _result, bool _sat) = SatQ(Int(element, unsigned), esize, unsigned);
+                Elem(result, e, esize, _result);
+                sat = _sat;
+
+                if (sat)
+                {
+                    /* FPSR.QC = '1'; */
+                    FPSR[27] = true; // FIXME: Temporary solution.
+                }
+            }
+
+            Vpart(d, part, result);
+        }
 #endregion
 
 #region "SimdReg"

Ryujinx.Tests/Cpu/Tester/Pseudocode.cs

@@ -104,6 +104,8 @@ namespace Ryujinx.Tests.Cpu.Tester
             SP_EL0.SetAll(false);
             /* SP_EL1 = bits(64) UNKNOWN; */
             SP_EL1.SetAll(false);
+
+            FPSR.SetAll(false); // FIXME: Temporary solution.
         }
 
         // #impl-aarch64.SP.write.0
@@ -518,6 +520,8 @@ namespace Ryujinx.Tests.Cpu.Tester
             SP_EL0 = new Bits(64, false);
             SP_EL1 = new Bits(64, false);
 
+            FPSR = new Bits(32, false); // FIXME: Temporary solution.
+
             PSTATE.N = false;
             PSTATE.Z = false;
             PSTATE.C = false;
@@ -1016,6 +1020,8 @@ namespace Ryujinx.Tests.Cpu.Tester
 
         public static Bits SP_EL0;
         public static Bits SP_EL1;
+
+        public static Bits FPSR; // FIXME: Temporary solution.
 #endregion
 
 #region "functions/system/"
@@ -1081,6 +1087,7 @@ namespace Ryujinx.Tests.Cpu.Tester
                 return true; // EL1 and EL0 must exist
             }
 
+            /* return boolean IMPLEMENTATION_DEFINED; */
             return false;
         }
 
@@ -1113,5 +1120,65 @@ namespace Ryujinx.Tests.Cpu.Tester
             public bool SP; // Stack pointer select: 0=SP0, 1=SPx [AArch64 only]
         }
 #endregion
+
+#region "functions/vector/"
+        // #impl-shared.SatQ.3
+        public static (Bits, bool) SatQ(BigInteger i, int N, bool unsigned)
+        {
+            (Bits result, bool sat) = (unsigned ? UnsignedSatQ(i, N) : SignedSatQ(i, N));
+
+            return (result, sat);
+        }
+
+        // #impl-shared.SignedSatQ.2
+        public static (Bits, bool) SignedSatQ(BigInteger i, int N)
+        {
+            BigInteger result;
+            bool saturated;
+
+            if (i > BigInteger.Pow(2, N - 1) - 1)
+            {
+                result = BigInteger.Pow(2, N - 1) - 1;
+                saturated = true;
+            }
+            else if (i < -(BigInteger.Pow(2, N - 1)))
+            {
+                result = -(BigInteger.Pow(2, N - 1));
+                saturated = true;
+            }
+            else
+            {
+                result = i;
+                saturated = false;
+            }
+
+            return (result.SubBigInteger(N - 1, 0), saturated);
+        }
+
+        // #impl-shared.UnsignedSatQ.2
+        public static (Bits, bool) UnsignedSatQ(BigInteger i, int N)
+        {
+            BigInteger result;
+            bool saturated;
+
+            if (i > BigInteger.Pow(2, N) - 1)
+            {
+                result = BigInteger.Pow(2, N) - 1;
+                saturated = true;
+            }
+            else if (i < 0)
+            {
+                result = 0;
+                saturated = true;
+            }
+            else
+            {
+                result = i;
+                saturated = false;
+            }
+
+            return (result.SubBigInteger(N - 1, 0), saturated);
+        }
+#endregion
     }
 }