diff --git a/Ryujinx.Tests/Cpu/CpuTest.cs b/Ryujinx.Tests/Cpu/CpuTest.cs
index 92c74e44..7af2d55d 100644
--- a/Ryujinx.Tests/Cpu/CpuTest.cs
+++ b/Ryujinx.Tests/Cpu/CpuTest.cs
@@ -57,13 +57,14 @@ namespace Ryujinx.Tests.Cpu
             Position += 4;
         }
 
-        protected void SetThreadState(ulong X0 = 0, ulong X1 = 0, ulong X2 = 0,
+        protected void SetThreadState(ulong X0 = 0, ulong X1 = 0, ulong X2 = 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)
         {
             Thread.ThreadState.X0 = X0;
             Thread.ThreadState.X1 = X1;
             Thread.ThreadState.X2 = X2;
+            Thread.ThreadState.X31 = X31;
             Thread.ThreadState.V0 = V0;
             Thread.ThreadState.V1 = V1;
             Thread.ThreadState.V2 = V2;
@@ -91,14 +92,14 @@ namespace Ryujinx.Tests.Cpu
         }
 
         protected AThreadState SingleOpcode(uint Opcode,
-                                            ulong X0 = 0, ulong X1 = 0, ulong X2 = 0,
+                                            ulong X0 = 0, ulong X1 = 0, ulong X2 = 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)
         {
             this.Opcode(Opcode);
             this.Opcode(0xD4200000); // BRK #0
             this.Opcode(0xD65F03C0); // RET
-            SetThreadState(X0, X1, X2, V0, V1, V2, Overflow, Carry, Zero, Negative);
+            SetThreadState(X0, X1, X2, X31, V0, V1, V2, Overflow, Carry, Zero, Negative);
             ExecuteOpcodes();
 
             return GetThreadState();
diff --git a/Ryujinx.Tests/Cpu/CpuTestAlu.cs b/Ryujinx.Tests/Cpu/CpuTestAlu.cs
index b73212ac..0445c97a 100644
--- a/Ryujinx.Tests/Cpu/CpuTestAlu.cs
+++ b/Ryujinx.Tests/Cpu/CpuTestAlu.cs
@@ -5,12 +5,31 @@ namespace Ryujinx.Tests.Cpu
 {
     public class CpuTestAlu : CpuTest
     {
-        [TestCase(2u, 3u, 6ul, true)]
-        [TestCase(2u, 3u, 5ul, false)]
-        public void Adc(uint A, uint B, ulong Result, bool CarryTest)
+        [TestCase(0x9A020020u, 2u,          3u,   true,  6u)]
+        [TestCase(0x9A020020u, 2u,          3u,   false, 5u)]
+        [TestCase(0x1A020020u, 2u,          3u,   true,  6u)]
+        [TestCase(0x1A020020u, 2u,          3u,   false, 5u)]
+        [TestCase(0x1A020020u, 0xFFFFFFFFu, 0x2u, false, 0x1u)]
+        public void Adc(uint Opcode, uint A, uint B, bool CarryState, uint Result)
         {
-            // ADC X0, X1, X2
-            AThreadState ThreadState = SingleOpcode(0x9A020020, X1: A, X2: B, Carry: CarryTest);
+            // ADC (X0/W0), (X1/W1), (X2/W2)
+            AThreadState ThreadState = SingleOpcode(Opcode, X1: A, X2: B, Carry: CarryState);
+            Assert.AreEqual(Result, ThreadState.X0);
+        }
+
+        [TestCase(0x3A020020u, 2u,          3u,   false, false, false, 5u)]
+        [TestCase(0x3A020020u, 2u,          3u,   true,  false, false, 6u)]
+        [TestCase(0xBA020020u, 2u,          3u,   false, false, false, 5u)]
+        [TestCase(0xBA020020u, 2u,          3u,   true,  false, false, 6u)]
+        [TestCase(0x3A020020u, 0xFFFFFFFEu, 0x1u, true,  true,  true,  0x0u)]
+        public void Adcs(uint Opcode, uint A, uint B, bool CarryState, bool Zero, bool Carry, uint Result)
+        {
+            //ADCS (X0/W0), (X1, W1), (X2/W2)
+            AThreadState ThreadState = SingleOpcode(Opcode, X1: A, X2: B, Carry: CarryState);
+            Assert.IsFalse(ThreadState.Negative);
+            Assert.IsFalse(ThreadState.Overflow);
+            Assert.AreEqual(Zero, ThreadState.Zero);
+            Assert.AreEqual(Carry, ThreadState.Carry);
             Assert.AreEqual(Result, ThreadState.X0);
         }
     
@@ -22,7 +41,23 @@ namespace Ryujinx.Tests.Cpu
             Assert.AreEqual(3, ThreadState.X0);
         }
 
-        [TestCase(0xFFFFFFFFu, 0xFFFFFFFFu, 0xFFFFFFFFul, true, false)]
+        [TestCase(2u,          false, false)]
+        [TestCase(5u,          false, false)]
+        [TestCase(7u,          false, false)]
+        [TestCase(0xFFFFFFFFu, false, true )]
+        [TestCase(0xFFFFFFFBu, true,  true )]
+        public void Adds(uint A, bool Zero, bool Carry)
+        {
+            //ADDS WZR, WSP, #5
+            AThreadState ThreadState = SingleOpcode(0x310017FF, X31: A);
+            Assert.IsFalse(ThreadState.Negative);
+            Assert.AreEqual(Zero, ThreadState.Zero);
+            Assert.AreEqual(Carry, ThreadState.Carry);
+            Assert.IsFalse(ThreadState.Overflow);
+            Assert.AreEqual(A, ThreadState.X31);
+        }
+
+        [TestCase(0xFFFFFFFFu, 0xFFFFFFFFu, 0xFFFFFFFFul, true,  false)]
         [TestCase(0xFFFFFFFFu, 0x00000000u, 0x00000000ul, false, true)]
         [TestCase(0x12345678u, 0x7324A993u, 0x12240010ul, false, false)]
         public void Ands(uint A, uint B, ulong Result, bool Negative, bool Zero)
@@ -67,5 +102,22 @@ namespace Ryujinx.Tests.Cpu
             AThreadState ThreadState = SingleOpcode(0x5AC00821, X1: 0x12345678);
             Assert.AreEqual(0x78563412, ThreadState.X1);
         }
+
+        [TestCase(0x7A020020u, 4u, 2u, false, false, false, true,  1u)]
+        [TestCase(0x7A020020u, 4u, 2u, true,  false, false, true,  2u)]
+        [TestCase(0xFA020020u, 4u, 2u, false, false, false, true,  1u)]
+        [TestCase(0xFA020020u, 4u, 2u, true,  false, false, true,  2u)]
+        [TestCase(0x7A020020u, 4u, 4u, false, true,  false, false, 0xFFFFFFFFu)]
+        [TestCase(0x7A020020u, 4u, 4u, true,  false, true,  true,  0x0u)]
+        public void Sbcs(uint Opcode, uint A, uint B, bool CarryState, bool Negative, bool Zero, bool Carry, uint Result)
+        {
+            //SBCS (X0/W0), (X1, W1), (X2/W2)
+            AThreadState ThreadState = SingleOpcode(Opcode, X1: A, X2: B, Carry: CarryState);
+            Assert.AreEqual(Negative, ThreadState.Negative);
+            Assert.IsFalse(ThreadState.Overflow);
+            Assert.AreEqual(Zero, ThreadState.Zero);
+            Assert.AreEqual(Carry, ThreadState.Carry);
+            Assert.AreEqual(Result, ThreadState.X0);
+        }
     }
 }