Add ABS (scalar & vector), ADD (scalar), NEG (scalar) instructions. (#88)

* Update AOpCodeTable.cs

* Update AInstEmitSimdArithmetic.cs

* Update AOpCodeTable.cs

2 files changed, 40 insertions, 2 deletions

diff --git a/ChocolArm64/AOpCodeTable.cs b/ChocolArm64/AOpCodeTable.cs
index e55bccbe..d4cbd6fc 100644
--- a/ChocolArm64/AOpCodeTable.cs
+++ b/ChocolArm64/AOpCodeTable.cs
@@ -133,6 +133,9 @@ namespace ChocolArm64
             Set("10011011110xxxxx0xxxxxxxxxxxxxxx", AInstEmit.Umulh,         typeof(AOpCodeMul));
 
             //Vector
+            Set("0101111011100000101110xxxxxxxxxx", AInstEmit.Abs_S,         typeof(AOpCodeSimd));
+            Set("0>001110<<100000101110xxxxxxxxxx", AInstEmit.Abs_V,         typeof(AOpCodeSimd));
+            Set("01011110111xxxxx100001xxxxxxxxxx", AInstEmit.Add_S,         typeof(AOpCodeSimdReg));
             Set("0>001110<<1xxxxx100001xxxxxxxxxx", AInstEmit.Add_V,         typeof(AOpCodeSimdReg));
             Set("01011110xx110001101110xxxxxxxxxx", AInstEmit.Addp_S,        typeof(AOpCodeSimd));
             Set("0>001110<<1xxxxx101111xxxxxxxxxx", AInstEmit.Addp_V,        typeof(AOpCodeSimdReg));
@@ -280,7 +283,8 @@ namespace ChocolArm64
             Set("0x10111100000xxx0xx001xxxxxxxxxx", AInstEmit.Mvni_V,        typeof(AOpCodeSimdImm));
             Set("0x10111100000xxx10x001xxxxxxxxxx", AInstEmit.Mvni_V,        typeof(AOpCodeSimdImm));
             Set("0x10111100000xxx110x01xxxxxxxxxx", AInstEmit.Mvni_V,        typeof(AOpCodeSimdImm));
-            Set("0>101110<<100000101110xxxxxxxxxx", AInstEmit.Neg_V,         typeof(AOpCodeSimdReg));
+            Set("0111111011100000101110xxxxxxxxxx", AInstEmit.Neg_S,         typeof(AOpCodeSimd));
+            Set("0>101110<<100000101110xxxxxxxxxx", AInstEmit.Neg_V,         typeof(AOpCodeSimd));
             Set("0x10111000100000010110xxxxxxxxxx", AInstEmit.Not_V,         typeof(AOpCodeSimd));
             Set("0x001110101xxxxx000111xxxxxxxxxx", AInstEmit.Orr_V,         typeof(AOpCodeSimdReg));
             Set("0x00111100000xxx<<x101xxxxxxxxxx", AInstEmit.Orr_Vi,        typeof(AOpCodeSimdImm));
@@ -313,7 +317,7 @@ namespace ChocolArm64
             Set("xx111100x00xxxxxxxxx11xxxxxxxxxx", AInstEmit.Str,           typeof(AOpCodeSimdMemImm));
             Set("xx111101x0xxxxxxxxxxxxxxxxxxxxxx", AInstEmit.Str,           typeof(AOpCodeSimdMemImm));
             Set("xx111100x01xxxxxxxxx10xxxxxxxxxx", AInstEmit.Str,           typeof(AOpCodeSimdMemReg));
-            Set("01111110xx1xxxxx100001xxxxxxxxxx", AInstEmit.Sub_S,         typeof(AOpCodeSimdReg));
+            Set("01111110111xxxxx100001xxxxxxxxxx", AInstEmit.Sub_S,         typeof(AOpCodeSimdReg));
             Set("0>101110<<1xxxxx100001xxxxxxxxxx", AInstEmit.Sub_V,         typeof(AOpCodeSimdReg));
             Set("0x001110000xxxxx0xx000xxxxxxxxxx", AInstEmit.Tbl_V,         typeof(AOpCodeSimdTbl));
             Set("0>001110<<0xxxxx001010xxxxxxxxxx", AInstEmit.Trn1_V,        typeof(AOpCodeSimdReg));
diff --git a/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs b/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
index 721fd7eb..bc7ed890 100644
--- a/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
+++ b/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
@@ -11,6 +11,35 @@ namespace ChocolArm64.Instruction
 {
     static partial class AInstEmit
     {
+        public static void Abs_S(AILEmitterCtx Context)
+        {
+            EmitScalarUnaryOpSx(Context, () => EmitAbs(Context));
+        }
+
+        public static void Abs_V(AILEmitterCtx Context)
+        {
+            EmitVectorUnaryOpSx(Context, () => EmitAbs(Context));
+        }
+
+        private static void EmitAbs(AILEmitterCtx Context)
+        {
+            AILLabel LblTrue = new AILLabel();
+
+            Context.Emit(OpCodes.Dup);
+
+            Context.Emit(OpCodes.Ldc_I4_0);
+            Context.Emit(OpCodes.Bge_S, LblTrue);
+
+            Context.Emit(OpCodes.Neg);
+
+            Context.MarkLabel(LblTrue);
+        }
+
+        public static void Add_S(AILEmitterCtx Context)
+        {
+            EmitScalarBinaryOpZx(Context, () => Context.Emit(OpCodes.Add));
+        }
+
         public static void Add_V(AILEmitterCtx Context)
         {
             EmitVectorBinaryOpZx(Context, () => Context.Emit(OpCodes.Add));
@@ -738,6 +767,11 @@ namespace ChocolArm64.Instruction
             EmitVectorBinaryOpByElemZx(Context, () => Context.Emit(OpCodes.Mul));
         }
 
+        public static void Neg_S(AILEmitterCtx Context)
+        {
+            EmitScalarUnaryOpSx(Context, () => Context.Emit(OpCodes.Neg));
+        }
+
         public static void Neg_V(AILEmitterCtx Context)
         {
             EmitVectorUnaryOpSx(Context, () => Context.Emit(OpCodes.Neg));