Fix Fcvtl_V and Fcvtn_V; fix half to float conv. and add float to half conv. (full FP emu.). Add 4 FP Tests. (#468)

* Update CpuTest.cs

* Update CpuTestSimd.cs

* Superseded.

* Update AInstEmitSimdCvt.cs

* Update ASoftFloat.cs

* Nit.

* Update PackageReferences.

* Update AInstEmitSimdArithmetic.cs

* Update AVectorHelper.cs

* Update ASoftFloat.cs

* Update ASoftFallback.cs

* Update AThreadState.cs

* Create FPType.cs

* Create FPExc.cs

* Create FPCR.cs

* Create FPSR.cs

* Update ARoundMode.cs

* Update APState.cs

* Avoid an unwanted implicit cast of the operator >= to long, continuing to check for negative values. Remove a leftover.

* Nits.

1 files changed, 4 insertions, 6 deletions

diff --git a/ChocolArm64/Instruction/AInstEmitSimdHelper.cs b/ChocolArm64/Instruction/AInstEmitSimdHelper.cs
index dd39f52d..ff082831 100644
--- a/ChocolArm64/Instruction/AInstEmitSimdHelper.cs
+++ b/ChocolArm64/Instruction/AInstEmitSimdHelper.cs
@@ -1274,8 +1274,6 @@ namespace ChocolArm64.Instruction
         {
             ThrowIfInvalid(Index, Size);
 
-            IAOpCodeSimd Op = (IAOpCodeSimd)Context.CurrOp;
-
             Context.EmitLdvec(Reg);
             Context.EmitLdc_I4(Index);
             Context.EmitLdc_I4(Size);
@@ -1470,12 +1468,12 @@ namespace ChocolArm64.Instruction
 
         private static void ThrowIfInvalid(int Index, int Size)
         {
-            if ((uint)Size > 3)
+            if ((uint)Size > 3u)
             {
                 throw new ArgumentOutOfRangeException(nameof(Size));
             }
 
-            if ((uint)Index >= 16 >> Size)
+            if ((uint)Index >= 16u >> Size)
             {
                 throw new ArgumentOutOfRangeException(nameof(Index));
             }
@@ -1483,12 +1481,12 @@ namespace ChocolArm64.Instruction
 
         private static void ThrowIfInvalidF(int Index, int Size)
         {
-            if ((uint)Size > 1)
+            if ((uint)Size > 1u)
             {
                 throw new ArgumentOutOfRangeException(nameof(Size));
             }
 
-            if ((uint)Index >= 4 >> Size)
+            if ((uint)Index >= 4u >> Size)
             {
                 throw new ArgumentOutOfRangeException(nameof(Index));
             }