Fpsr and Fpcr freed. (#3701)

* Implemented in IR the managed methods of the Saturating region ...

... of the SoftFallback class (the SatQ ones).

The need to natively manage the Fpcr and Fpsr system registers is still a fact.

Contributes to https://github.com/Ryujinx/Ryujinx/issues/2917 ; I will open another PR to implement in Intrinsics-branchless the methods of the Saturation region as well (the SatXXXToXXX ones).

All instructions involved have been tested locally in both release and debug modes, in both lowcq and highcq.

* Ptc.InternalVersion = 3665

* Addressed PR feedback.

* Implemented in IR the managed methods of the ShlReg region of the SoftFallback class.

It also includes the last two SatQ ones (following up on https://github.com/Ryujinx/Ryujinx/pull/3665).

All instructions involved have been tested locally in both release and debug modes, in both lowcq and highcq.

* Fpsr and Fpcr freed.

Handling/isolation of Fpsr and Fpcr via register for IR and via memory for Tests and Threads, with synchronization to context exchanges (explicit for SoftFloat); without having to call managed methods. Thanks to the inlining work of the previous two PRs and others in this.

Tests performed locally in both release and debug modes, in both lowcq and highcq, with FastFP to true and false (explicit FP tests included). Tested with the title Tony Hawk's PS.

Depends on shlreg.

* Update InstEmitSimdHelper.cs

* De-magic Masks.

Remove the Stride and Len flags; Fpsr.NZCV are A32 only, then moved to Fpscr: this leads to emitting less IR in reference to Get/Set Fpsr/Fpcr/Fpscr methods in reference to Mrs/Msr (A64) and Vmrs/Vmsr (A32) instructions.

* Addressed PR feedback.

ARMeilleure/Instructions/InstEmitSimdArithmetic.cs

@@ -726,7 +726,7 @@ namespace ARMeilleure.Instructions
             {
                 EmitVectorAcrossVectorOpF(context, (op1, op2) =>
                 {
-                    return context.Call(typeof(SoftFloat32).GetMethod(nameof(SoftFloat32.FPMaxNum)), op1, op2);
+                    return EmitSoftFloatCall(context, nameof(SoftFloat32.FPMaxNum), op1, op2);
                 });
             }
         }
@@ -774,7 +774,7 @@ namespace ARMeilleure.Instructions
             {
                 EmitVectorAcrossVectorOpF(context, (op1, op2) =>
                 {
-                    return context.Call(typeof(SoftFloat32).GetMethod(nameof(SoftFloat32.FPMax)), op1, op2);
+                    return EmitSoftFloatCall(context, nameof(SoftFloat32.FPMax), op1, op2);
                 });
             }
         }
@@ -900,7 +900,7 @@ namespace ARMeilleure.Instructions
             {
                 EmitVectorAcrossVectorOpF(context, (op1, op2) =>
                 {
-                    return context.Call(typeof(SoftFloat32).GetMethod(nameof(SoftFloat32.FPMinNum)), op1, op2);
+                    return EmitSoftFloatCall(context, nameof(SoftFloat32.FPMinNum), op1, op2);
                 });
             }
         }
@@ -948,7 +948,7 @@ namespace ARMeilleure.Instructions
             {
                 EmitVectorAcrossVectorOpF(context, (op1, op2) =>
                 {
-                    return context.Call(typeof(SoftFloat32).GetMethod(nameof(SoftFloat32.FPMin)), op1, op2);
+                    return EmitSoftFloatCall(context, nameof(SoftFloat32.FPMin), op1, op2);
                 });
             }
         }
@@ -1633,37 +1633,17 @@ namespace ARMeilleure.Instructions
 
         public static void Frinti_S(ArmEmitterContext context)
         {
-            OpCodeSimd op = (OpCodeSimd)context.CurrOp;
-
             EmitScalarUnaryOpF(context, (op1) =>
             {
-                if (op.Size == 0)
-                {
-                    return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.RoundF)), op1);
-                }
-                else /* if (op.Size == 1) */
-                {
-                    return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Round)), op1);
-                }
+                return EmitRoundByRMode(context, op1);
             });
         }
 
         public static void Frinti_V(ArmEmitterContext context)
         {
-            OpCodeSimd op = (OpCodeSimd)context.CurrOp;
-
-            int sizeF = op.Size & 1;
-
             EmitVectorUnaryOpF(context, (op1) =>
             {
-                if (sizeF == 0)
-                {
-                    return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.RoundF)), op1);
-                }
-                else /* if (sizeF == 1) */
-                {
-                    return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Round)), op1);
-                }
+                return EmitRoundByRMode(context, op1);
             });
         }
 
@@ -1759,37 +1739,17 @@ namespace ARMeilleure.Instructions
 
         public static void Frintx_S(ArmEmitterContext context)
         {
-            OpCodeSimd op = (OpCodeSimd)context.CurrOp;
-
             EmitScalarUnaryOpF(context, (op1) =>
             {
-                if (op.Size == 0)
-                {
-                    return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.RoundF)), op1);
-                }
-                else /* if (op.Size == 1) */
-                {
-                    return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Round)), op1);
-                }
+                return EmitRoundByRMode(context, op1);
             });
         }
 
         public static void Frintx_V(ArmEmitterContext context)
         {
-            OpCodeSimd op = (OpCodeSimd)context.CurrOp;
-
-            int sizeF = op.Size & 1;
-
             EmitVectorUnaryOpF(context, (op1) =>
             {
-                if (sizeF == 0)
-                {
-                    return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.RoundF)), op1);
-                }
-                else /* if (sizeF == 1) */
-                {
-                    return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Round)), op1);
-                }
+                return EmitRoundByRMode(context, op1);
             });
         }
 

ARMeilleure/Instructions/InstEmitSimdCmp32.cs

@@ -3,7 +3,6 @@ using ARMeilleure.IntermediateRepresentation;
 using ARMeilleure.State;
 using ARMeilleure.Translation;
 using System;
-using System.Reflection;
 
 using static ARMeilleure.Instructions.InstEmitHelper;
 using static ARMeilleure.Instructions.InstEmitSimdHelper;
@@ -178,37 +177,20 @@ namespace ARMeilleure.Instructions
 
         private static void EmitCmpOpF32(ArmEmitterContext context, string name, bool zero)
         {
-            Operand one = Const(1);
             if (zero)
             {
                 EmitVectorUnaryOpF32(context, (m) =>
                 {
-                    OperandType type = m.Type;
+                    Operand zeroOp = m.Type == OperandType.FP64 ? ConstF(0.0d) : ConstF(0.0f);
 
-                    if (type == OperandType.FP64)
-                    {
-                        return context.Call(typeof(SoftFloat64).GetMethod(name), m, ConstF(0.0d), one);
-                    }
-                    else
-                    {
-                        return context.Call(typeof(SoftFloat32).GetMethod(name), m, ConstF(0.0f), one);
-                    }
+                    return EmitSoftFloatCallDefaultFpscr(context, name, m, zeroOp);
                 });
             }
             else
             {
                 EmitVectorBinaryOpF32(context, (n, m) =>
                 {
-                    OperandType type = n.Type;
-
-                    if (type == OperandType.FP64)
-                    {
-                        return context.Call(typeof(SoftFloat64).GetMethod(name), n, m, one);
-                    }
-                    else
-                    {
-                        return context.Call(typeof(SoftFloat32).GetMethod(name), n, m, one);
-                    }
+                    return EmitSoftFloatCallDefaultFpscr(context, name, n, m);
                 });
             }
         }
@@ -357,11 +339,7 @@ namespace ARMeilleure.Instructions
                     me = ExtractScalar(context, type, op.Vm);
                 }
 
-                MethodInfo info = sizeF != 0
-                    ? typeof(SoftFloat64).GetMethod(nameof(SoftFloat64.FPCompare))
-                    : typeof(SoftFloat32).GetMethod(nameof(SoftFloat32.FPCompare));
-
-                Operand nzcv = context.Call(info, ne, me, Const(signalNaNs));
+                Operand nzcv = EmitSoftFloatCall(context, nameof(SoftFloat32.FPCompare), ne, me, Const(signalNaNs));
 
                 EmitSetFpscrNzcv(context, nzcv);
             }

ARMeilleure/Instructions/InstEmitSimdCvt.cs

@@ -76,7 +76,9 @@ namespace ARMeilleure.Instructions
                 {
                     Operand ne = context.VectorExtract(OperandType.FP32, GetVec(op.Rn), 0);
 
+                    context.StoreToContext();
                     Operand res = context.Call(typeof(SoftFloat32_16).GetMethod(nameof(SoftFloat32_16.FPConvert)), ne);
+                    context.LoadFromContext();
 
                     res = context.ZeroExtend16(OperandType.I64, res);
 
@@ -98,7 +100,9 @@ namespace ARMeilleure.Instructions
                 {
                     Operand ne = EmitVectorExtractZx(context, op.Rn, 0, 1);
 
+                    context.StoreToContext();
                     Operand res = context.Call(typeof(SoftFloat16_32).GetMethod(nameof(SoftFloat16_32.FPConvert)), ne);
+                    context.LoadFromContext();
 
                     context.Copy(GetVec(op.Rd), context.VectorInsert(context.VectorZero(), res, 0));
                 }
@@ -120,7 +124,9 @@ namespace ARMeilleure.Instructions
                 {
                     Operand ne = context.VectorExtract(OperandType.FP64, GetVec(op.Rn), 0);
 
+                    context.StoreToContext();
                     Operand res = context.Call(typeof(SoftFloat64_16).GetMethod(nameof(SoftFloat64_16.FPConvert)), ne);
+                    context.LoadFromContext();
 
                     res = context.ZeroExtend16(OperandType.I64, res);
 
@@ -143,7 +149,9 @@ namespace ARMeilleure.Instructions
                 {
                     Operand ne = EmitVectorExtractZx(context, op.Rn, 0, 1);
 
+                    context.StoreToContext();
                     Operand res = context.Call(typeof(SoftFloat16_64).GetMethod(nameof(SoftFloat16_64.FPConvert)), ne);
+                    context.LoadFromContext();
 
                     context.Copy(GetVec(op.Rd), context.VectorInsert(context.VectorZero(), res, 0));
                 }
@@ -224,7 +232,9 @@ namespace ARMeilleure.Instructions
                     {
                         Operand ne = EmitVectorExtractZx(context, op.Rn, part + index, 1);
 
+                        context.StoreToContext();
                         Operand e = context.Call(typeof(SoftFloat16_32).GetMethod(nameof(SoftFloat16_32.FPConvert)), ne);
+                        context.LoadFromContext();
 
                         res = context.VectorInsert(res, e, index);
                     }
@@ -333,7 +343,9 @@ namespace ARMeilleure.Instructions
 
                     if (sizeF == 0)
                     {
+                        context.StoreToContext();
                         Operand e = context.Call(typeof(SoftFloat32_16).GetMethod(nameof(SoftFloat32_16.FPConvert)), ne);
+                        context.LoadFromContext();
 
                         e = context.ZeroExtend16(OperandType.I64, e);
 

ARMeilleure/Instructions/InstEmitSimdCvt32.cs

@@ -161,34 +161,15 @@ namespace ARMeilleure.Instructions
                 {
                     Operand toConvert = ExtractScalar(context, floatSize, op.Vm);
 
-                    Operand asInteger;
-
                     // TODO: Fast Path.
                     if (roundWithFpscr)
                     {
-                        MethodInfo info;
-
-                        if (floatSize == OperandType.FP64)
-                        {
-                            info = unsigned
-                                ? typeof(SoftFallback).GetMethod(nameof(SoftFallback.DoubleToUInt32))
-                                : typeof(SoftFallback).GetMethod(nameof(SoftFallback.DoubleToInt32));
-                        }
-                        else
-                        {
-                            info = unsigned
-                                ? typeof(SoftFallback).GetMethod(nameof(SoftFallback.FloatToUInt32))
-                                : typeof(SoftFallback).GetMethod(nameof(SoftFallback.FloatToInt32));
-                        }
-
-                        asInteger = context.Call(info, toConvert);
-                    }
-                    else
-                    {
-                        // Round towards zero.
-                        asInteger = EmitSaturateFloatToInt(context, toConvert, unsigned);
+                        toConvert = EmitRoundByRMode(context, toConvert);
                     }
 
+                    // Round towards zero.
+                    Operand asInteger = EmitSaturateFloatToInt(context, toConvert, unsigned);
+
                     InsertScalar(context, op.Vd, asInteger);
                 }
             }
@@ -271,9 +252,7 @@ namespace ARMeilleure.Instructions
                         break;
                 }
 
-                Operand asInteger;
-
-                asInteger = EmitSaturateFloatToInt(context, toConvert, unsigned);
+                Operand asInteger = EmitSaturateFloatToInt(context, toConvert, unsigned);
 
                 InsertScalar(context, op.Vd, asInteger);
             }
@@ -399,15 +378,9 @@ namespace ARMeilleure.Instructions
         // VRINTX (floating-point).
         public static void Vrintx_S(ArmEmitterContext context)
         {
-            OpCode32SimdS op = (OpCode32SimdS)context.CurrOp;
-
-            bool doubleSize = (op.Size & 1) == 1;
-            string methodName = doubleSize ? nameof(SoftFallback.Round) : nameof(SoftFallback.RoundF);
-
             EmitScalarUnaryOpF32(context, (op1) =>
             {
-                MethodInfo info = typeof(SoftFallback).GetMethod(methodName);
-                return context.Call(info, op1);
+                return EmitRoundByRMode(context, op1);
             });
         }
 

ARMeilleure/Instructions/InstEmitSimdHelper.cs

@@ -361,6 +361,54 @@ namespace ARMeilleure.Instructions
             return context.Call(info, n, Const((int)roundMode));
         }
 
+        public static Operand EmitGetRoundingMode(ArmEmitterContext context)
+        {
+            Operand rMode = context.ShiftLeft(GetFpFlag(FPState.RMode1Flag), Const(1));
+                    rMode = context.BitwiseOr(rMode, GetFpFlag(FPState.RMode0Flag));
+
+            return rMode;
+        }
+
+        public static Operand EmitRoundByRMode(ArmEmitterContext context, Operand op)
+        {
+            Debug.Assert(op.Type == OperandType.FP32 || op.Type == OperandType.FP64);
+
+            Operand lbl1 = Label();
+            Operand lbl2 = Label();
+            Operand lbl3 = Label();
+            Operand lblEnd = Label();
+
+            Operand rN = Const((int)FPRoundingMode.ToNearest);
+            Operand rP = Const((int)FPRoundingMode.TowardsPlusInfinity);
+            Operand rM = Const((int)FPRoundingMode.TowardsMinusInfinity);
+
+            Operand res = context.AllocateLocal(op.Type);
+
+            Operand rMode = EmitGetRoundingMode(context);
+
+            context.BranchIf(lbl1, rMode, rN, Comparison.NotEqual);
+            context.Copy(res, EmitRoundMathCall(context, MidpointRounding.ToEven, op));
+            context.Branch(lblEnd);
+
+            context.MarkLabel(lbl1);
+            context.BranchIf(lbl2, rMode, rP, Comparison.NotEqual);
+            context.Copy(res, EmitUnaryMathCall(context, nameof(Math.Ceiling), op));
+            context.Branch(lblEnd);
+
+            context.MarkLabel(lbl2);
+            context.BranchIf(lbl3, rMode, rM, Comparison.NotEqual);
+            context.Copy(res, EmitUnaryMathCall(context, nameof(Math.Floor), op));
+            context.Branch(lblEnd);
+
+            context.MarkLabel(lbl3);
+            context.Copy(res, EmitUnaryMathCall(context, nameof(Math.Truncate), op));
+            context.Branch(lblEnd);
+
+            context.MarkLabel(lblEnd);
+
+            return res;
+        }
+
         public static Operand EmitSoftFloatCall(ArmEmitterContext context, string name, params Operand[] callArgs)
         {
             IOpCodeSimd op = (IOpCodeSimd)context.CurrOp;
@@ -369,7 +417,11 @@ namespace ARMeilleure.Instructions
                 ? typeof(SoftFloat32).GetMethod(name)
                 : typeof(SoftFloat64).GetMethod(name);
 
-            return context.Call(info, callArgs);
+            context.StoreToContext();
+            Operand res = context.Call(info, callArgs);
+            context.LoadFromContext();
+
+            return res;
         }
 
         public static void EmitScalarBinaryOpByElemF(ArmEmitterContext context, Func2I emit)
@@ -1269,7 +1321,7 @@ namespace ARMeilleure.Instructions
 
         public static void EmitSseOrAvxEnterFtzAndDazModesOpF(ArmEmitterContext context, out Operand isTrue)
         {
-            isTrue = context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcrFz)));
+            isTrue = GetFpFlag(FPState.FzFlag);
 
             Operand lblTrue = Label();
             context.BranchIfFalse(lblTrue, isTrue);
@@ -1281,9 +1333,7 @@ namespace ARMeilleure.Instructions
 
         public static void EmitSseOrAvxExitFtzAndDazModesOpF(ArmEmitterContext context, Operand isTrue = default)
         {
-            isTrue = isTrue == default
-                ? context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcrFz)))
-                : isTrue;
+            isTrue = isTrue == default ? GetFpFlag(FPState.FzFlag) : isTrue;
 
             Operand lblTrue = Label();
             context.BranchIfFalse(lblTrue, isTrue);
@@ -1552,13 +1602,13 @@ namespace ARMeilleure.Instructions
 
             context.BranchIf(lbl1, op, zeroL, Comparison.LessOrEqual);
             context.Copy(res, maxT);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lbl1);
             context.BranchIf(lblEnd, op, zeroL, Comparison.GreaterOrEqual);
             context.Copy(res, minT);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1583,7 +1633,7 @@ namespace ARMeilleure.Instructions
 
             context.BranchIf(lblEnd, op, zeroUL, Comparison.LessOrEqualUI);
             context.Copy(res, maxT);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1610,13 +1660,13 @@ namespace ARMeilleure.Instructions
 
             context.BranchIf(lbl1, op, maxT, Comparison.LessOrEqual);
             context.Copy(res, maxT);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lbl1);
             context.BranchIf(lblEnd, op, minT, Comparison.GreaterOrEqual);
             context.Copy(res, minT);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1641,7 +1691,7 @@ namespace ARMeilleure.Instructions
 
             context.BranchIf(lblEnd, op, maxT, Comparison.LessOrEqualUI);
             context.Copy(res, maxT);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1663,7 +1713,7 @@ namespace ARMeilleure.Instructions
 
             context.BranchIf(lblEnd, op, minL, Comparison.NotEqual);
             context.Copy(res, maxL);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1691,7 +1741,7 @@ namespace ARMeilleure.Instructions
 
             Operand isPositive = context.ICompareGreaterOrEqual(op1, zeroL);
             context.Copy(res, context.ConditionalSelect(isPositive, maxL, minL));
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1713,7 +1763,7 @@ namespace ARMeilleure.Instructions
 
             context.BranchIf(lblEnd, add, op1, Comparison.GreaterOrEqualUI);
             context.Copy(res, maxUL);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1741,7 +1791,7 @@ namespace ARMeilleure.Instructions
 
             Operand isPositive = context.ICompareGreaterOrEqual(op1, zeroL);
             context.Copy(res, context.ConditionalSelect(isPositive, maxL, minL));
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1763,7 +1813,7 @@ namespace ARMeilleure.Instructions
 
             context.BranchIf(lblEnd, op1, op2, Comparison.GreaterOrEqualUI);
             context.Copy(res, zeroL);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1790,19 +1840,19 @@ namespace ARMeilleure.Instructions
             Operand notOp2AndRes = context.BitwiseAnd(context.BitwiseNot(op2), add);
             context.BranchIf(lblEnd, notOp2AndRes, zeroL, Comparison.GreaterOrEqual);
             context.Copy(res, maxL);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lbl1);
             context.BranchIf(lbl2, op2, zeroL, Comparison.Less);
             context.Copy(res, maxL);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lbl2);
             context.BranchIf(lblEnd, add, maxL, Comparison.LessOrEqualUI);
             context.Copy(res, maxL);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);
@@ -1828,14 +1878,14 @@ namespace ARMeilleure.Instructions
             context.BranchIf(lbl1, op1, zeroL, Comparison.Less);
             context.BranchIf(lblEnd, add, op1, Comparison.GreaterOrEqualUI);
             context.Copy(res, maxUL);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lbl1);
             context.BranchIf(lblEnd, op2, maxL, Comparison.GreaterUI);
             context.BranchIf(lblEnd, add, zeroL, Comparison.GreaterOrEqual);
             context.Copy(res, zeroL);
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
             context.Branch(lblEnd);
 
             context.MarkLabel(lblEnd);

ARMeilleure/Instructions/InstEmitSimdHelper32.cs

@@ -1181,7 +1181,11 @@ namespace ARMeilleure.Instructions
             Array.Resize(ref callArgs, callArgs.Length + 1);
             callArgs[callArgs.Length - 1] = Const(1);
 
-            return context.Call(info, callArgs);
+            context.StoreToContext();
+            Operand res = context.Call(info, callArgs);
+            context.LoadFromContext();
+
+            return res;
         }
 
         public static Operand EmitVectorExtractSx32(ArmEmitterContext context, int reg, int index, int size)

ARMeilleure/Instructions/InstEmitSimdShift32.cs

@@ -1,5 +1,6 @@
 using ARMeilleure.Decoders;
 using ARMeilleure.IntermediateRepresentation;
+using ARMeilleure.State;
 using ARMeilleure.Translation;
 using System;
 using System.Diagnostics;
@@ -378,7 +379,7 @@ namespace ARMeilleure.Instructions
 
             context.BranchIfFalse(lblNoSat, context.BitwiseOr(gt, lt));
 
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
+            SetFpFlag(context, FPState.QcFlag, Const(1));
 
             context.MarkLabel(lblNoSat);
 

ARMeilleure/Instructions/InstEmitSystem.cs

@@ -31,8 +31,8 @@ namespace ARMeilleure.Instructions
                 case 0b11_011_0000_0000_001: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetCtrEl0)); break;
                 case 0b11_011_0000_0000_111: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetDczidEl0)); break;
                 case 0b11_011_0100_0010_000: EmitGetNzcv(context); return;
-                case 0b11_011_0100_0100_000: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcr)); break;
-                case 0b11_011_0100_0100_001: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpsr)); break;
+                case 0b11_011_0100_0100_000: EmitGetFpcr(context); return;
+                case 0b11_011_0100_0100_001: EmitGetFpsr(context); return;
                 case 0b11_011_1101_0000_010: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidrEl0)); break;
                 case 0b11_011_1101_0000_011: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidrroEl0)); break;
                 case 0b11_011_1110_0000_000: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetCntfrqEl0)); break;
@@ -53,9 +53,9 @@ namespace ARMeilleure.Instructions
 
             switch (GetPackedId(op))
             {
-                case 0b11_011_0100_0010_000: EmitSetNzcv(context);                                                          return;
-                case 0b11_011_0100_0100_000: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpcr));     break;
-                case 0b11_011_0100_0100_001: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsr));     break;
+                case 0b11_011_0100_0010_000: EmitSetNzcv(context); return;
+                case 0b11_011_0100_0100_000: EmitSetFpcr(context); return;
+                case 0b11_011_0100_0100_001: EmitSetFpsr(context); return;
                 case 0b11_011_1101_0000_010: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetTpidrEl0)); break;
 
                 default: throw new NotImplementedException($"Unknown MSR 0x{op.RawOpCode:X8} at 0x{op.Address:X16}.");
@@ -121,39 +121,91 @@ namespace ARMeilleure.Instructions
         {
             OpCodeSystem op = (OpCodeSystem)context.CurrOp;
 
-            Operand vSh = context.ShiftLeft(GetFlag(PState.VFlag), Const((int)PState.VFlag));
-            Operand cSh = context.ShiftLeft(GetFlag(PState.CFlag), Const((int)PState.CFlag));
-            Operand zSh = context.ShiftLeft(GetFlag(PState.ZFlag), Const((int)PState.ZFlag));
-            Operand nSh = context.ShiftLeft(GetFlag(PState.NFlag), Const((int)PState.NFlag));
+            Operand nzcv = context.ShiftLeft(GetFlag(PState.VFlag), Const((int)PState.VFlag));
+            nzcv = context.BitwiseOr(nzcv, context.ShiftLeft(GetFlag(PState.CFlag), Const((int)PState.CFlag)));
+            nzcv = context.BitwiseOr(nzcv, context.ShiftLeft(GetFlag(PState.ZFlag), Const((int)PState.ZFlag)));
+            nzcv = context.BitwiseOr(nzcv, context.ShiftLeft(GetFlag(PState.NFlag), Const((int)PState.NFlag)));
 
-            Operand nzcvSh = context.BitwiseOr(context.BitwiseOr(nSh, zSh), context.BitwiseOr(cSh, vSh));
+            SetIntOrZR(context, op.Rt, nzcv);
+        }
+
+        private static void EmitGetFpcr(ArmEmitterContext context)
+        {
+            OpCodeSystem op = (OpCodeSystem)context.CurrOp;
+
+            Operand fpcr = Const(0);
+
+            for (int flag = 0; flag < RegisterConsts.FpFlagsCount; flag++)
+            {
+                if (FPCR.Mask.HasFlag((FPCR)(1u << flag)))
+                {
+                    fpcr = context.BitwiseOr(fpcr, context.ShiftLeft(GetFpFlag((FPState)flag), Const(flag)));
+                }
+            }
 
-            SetIntOrZR(context, op.Rt, nzcvSh);
+            SetIntOrZR(context, op.Rt, fpcr);
+        }
+
+        private static void EmitGetFpsr(ArmEmitterContext context)
+        {
+            OpCodeSystem op = (OpCodeSystem)context.CurrOp;
+
+            Operand fpsr = Const(0);
+
+            for (int flag = 0; flag < RegisterConsts.FpFlagsCount; flag++)
+            {
+                if (FPSR.Mask.HasFlag((FPSR)(1u << flag)))
+                {
+                    fpsr = context.BitwiseOr(fpsr, context.ShiftLeft(GetFpFlag((FPState)flag), Const(flag)));
+                }
+            }
+
+            SetIntOrZR(context, op.Rt, fpsr);
         }
 
         private static void EmitSetNzcv(ArmEmitterContext context)
         {
             OpCodeSystem op = (OpCodeSystem)context.CurrOp;
 
-            Operand t = GetIntOrZR(context, op.Rt);
-                    t = context.ConvertI64ToI32(t);
+            Operand nzcv = GetIntOrZR(context, op.Rt);
+                    nzcv = context.ConvertI64ToI32(nzcv);
 
-            Operand v = context.ShiftRightUI(t, Const((int)PState.VFlag));
-                    v = context.BitwiseAnd  (v, Const(1));
+            SetFlag(context, PState.VFlag, context.BitwiseAnd(context.ShiftRightUI(nzcv, Const((int)PState.VFlag)), Const(1)));
+            SetFlag(context, PState.CFlag, context.BitwiseAnd(context.ShiftRightUI(nzcv, Const((int)PState.CFlag)), Const(1)));
+            SetFlag(context, PState.ZFlag, context.BitwiseAnd(context.ShiftRightUI(nzcv, Const((int)PState.ZFlag)), Const(1)));
+            SetFlag(context, PState.NFlag, context.BitwiseAnd(context.ShiftRightUI(nzcv, Const((int)PState.NFlag)), Const(1)));
+        }
 
-            Operand c = context.ShiftRightUI(t, Const((int)PState.CFlag));
-                    c = context.BitwiseAnd  (c, Const(1));
+        private static void EmitSetFpcr(ArmEmitterContext context)
+        {
+            OpCodeSystem op = (OpCodeSystem)context.CurrOp;
+
+            Operand fpcr = GetIntOrZR(context, op.Rt);
+                    fpcr = context.ConvertI64ToI32(fpcr);
+
+            for (int flag = 0; flag < RegisterConsts.FpFlagsCount; flag++)
+            {
+                if (FPCR.Mask.HasFlag((FPCR)(1u << flag)))
+                {
+                    SetFpFlag(context, (FPState)flag, context.BitwiseAnd(context.ShiftRightUI(fpcr, Const(flag)), Const(1)));
+                }
+            }
+        }
 
-            Operand z = context.ShiftRightUI(t, Const((int)PState.ZFlag));
-                    z = context.BitwiseAnd  (z, Const(1));
+        private static void EmitSetFpsr(ArmEmitterContext context)
+        {
+            OpCodeSystem op = (OpCodeSystem)context.CurrOp;
 
-            Operand n = context.ShiftRightUI(t, Const((int)PState.NFlag));
-                    n = context.BitwiseAnd  (n, Const(1));
+            Operand fpsr = GetIntOrZR(context, op.Rt);
+                    fpsr = context.ConvertI64ToI32(fpsr);
 
-            SetFlag(context, PState.VFlag, v);
-            SetFlag(context, PState.CFlag, c);
-            SetFlag(context, PState.ZFlag, z);
-            SetFlag(context, PState.NFlag, n);
+            for (int flag = 0; flag < RegisterConsts.FpFlagsCount; flag++)
+            {
+                if (FPSR.Mask.HasFlag((FPSR)(1u << flag)))
+                {
+                    SetFpFlag(context, (FPState)flag, context.BitwiseAnd(context.ShiftRightUI(fpsr, Const(flag)), Const(1)));
+                }
+            }
         }
     }
 }

ARMeilleure/Instructions/InstEmitSystem32.cs

@@ -169,14 +169,11 @@ namespace ARMeilleure.Instructions
             }
             else
             {
-                Operand vSh = context.ShiftLeft(GetFlag(PState.VFlag), Const((int)PState.VFlag));
-                Operand cSh = context.ShiftLeft(GetFlag(PState.CFlag), Const((int)PState.CFlag));
-                Operand zSh = context.ShiftLeft(GetFlag(PState.ZFlag), Const((int)PState.ZFlag));
-                Operand nSh = context.ShiftLeft(GetFlag(PState.NFlag), Const((int)PState.NFlag));
-                Operand qSh = context.ShiftLeft(GetFlag(PState.QFlag), Const((int)PState.QFlag));
-
-                Operand spsr = context.BitwiseOr(context.BitwiseOr(nSh, zSh), context.BitwiseOr(cSh, vSh));
-                spsr = context.BitwiseOr(spsr, qSh);
+                Operand spsr = context.ShiftLeft(GetFlag(PState.VFlag), Const((int)PState.VFlag));
+                spsr = context.BitwiseOr(spsr, context.ShiftLeft(GetFlag(PState.CFlag), Const((int)PState.CFlag)));
+                spsr = context.BitwiseOr(spsr, context.ShiftLeft(GetFlag(PState.ZFlag), Const((int)PState.ZFlag)));
+                spsr = context.BitwiseOr(spsr, context.ShiftLeft(GetFlag(PState.NFlag), Const((int)PState.NFlag)));
+                spsr = context.BitwiseOr(spsr, context.ShiftLeft(GetFlag(PState.QFlag), Const((int)PState.QFlag)));
 
                 // TODO: Remaining flags.
 
@@ -200,8 +197,7 @@ namespace ARMeilleure.Instructions
 
                     EmitSetNzcv(context, value);
 
-                    Operand q = context.ShiftRightUI(value, Const((int)PState.QFlag));
-                    q = context.BitwiseAnd(q, Const(1));
+                    Operand q = context.BitwiseAnd(context.ShiftRightUI(value, Const((int)PState.QFlag)), Const(1));
 
                     SetFlag(context, PState.QFlag, q);
                 }
@@ -284,17 +280,10 @@ namespace ARMeilleure.Instructions
 
         private static void EmitSetNzcv(ArmEmitterContext context, Operand t)
         {
-            Operand v = context.ShiftRightUI(t, Const((int)PState.VFlag));
-            v = context.BitwiseAnd(v, Const(1));
-
-            Operand c = context.ShiftRightUI(t, Const((int)PState.CFlag));
-            c = context.BitwiseAnd(c, Const(1));
-
-            Operand z = context.ShiftRightUI(t, Const((int)PState.ZFlag));
-            z = context.BitwiseAnd(z, Const(1));
-
-            Operand n = context.ShiftRightUI(t, Const((int)PState.NFlag));
-            n = context.BitwiseAnd(n, Const(1));
+            Operand v = context.BitwiseAnd(context.ShiftRightUI(t, Const((int)PState.VFlag)), Const(1));
+            Operand c = context.BitwiseAnd(context.ShiftRightUI(t, Const((int)PState.CFlag)), Const(1));
+            Operand z = context.BitwiseAnd(context.ShiftRightUI(t, Const((int)PState.ZFlag)), Const(1));
+            Operand n = context.BitwiseAnd(context.ShiftRightUI(t, Const((int)PState.NFlag)), Const(1));
 
             SetFlag(context, PState.VFlag, v);
             SetFlag(context, PState.CFlag, c);
@@ -306,42 +295,32 @@ namespace ARMeilleure.Instructions
         {
             OpCode32SimdSpecial op = (OpCode32SimdSpecial)context.CurrOp;
 
-            Operand vSh = context.ShiftLeft(GetFpFlag(FPState.VFlag), Const((int)FPState.VFlag));
-            Operand cSh = context.ShiftLeft(GetFpFlag(FPState.CFlag), Const((int)FPState.CFlag));
-            Operand zSh = context.ShiftLeft(GetFpFlag(FPState.ZFlag), Const((int)FPState.ZFlag));
-            Operand nSh = context.ShiftLeft(GetFpFlag(FPState.NFlag), Const((int)FPState.NFlag));
-
-            Operand nzcvSh = context.BitwiseOr(context.BitwiseOr(nSh, zSh), context.BitwiseOr(cSh, vSh));
+            Operand fpscr = Const(0);
 
-            Operand fpscr = context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpscr)));
+            for (int flag = 0; flag < RegisterConsts.FpFlagsCount; flag++)
+            {
+                if (FPSCR.Mask.HasFlag((FPSCR)(1u << flag)))
+                {
+                    fpscr = context.BitwiseOr(fpscr, context.ShiftLeft(GetFpFlag((FPState)flag), Const(flag)));
+                }
+            }
 
-            SetIntA32(context, op.Rt, context.BitwiseOr(nzcvSh, fpscr));
+            SetIntA32(context, op.Rt, fpscr);
         }
 
         private static void EmitSetFpscr(ArmEmitterContext context)
         {
             OpCode32SimdSpecial op = (OpCode32SimdSpecial)context.CurrOp;
 
-            Operand t = GetIntA32(context, op.Rt);
+            Operand fpscr = GetIntA32(context, op.Rt);
 
-            Operand v = context.ShiftRightUI(t, Const((int)FPState.VFlag));
-            v = context.BitwiseAnd(v, Const(1));
-
-            Operand c = context.ShiftRightUI(t, Const((int)FPState.CFlag));
-            c = context.BitwiseAnd(c, Const(1));
-
-            Operand z = context.ShiftRightUI(t, Const((int)FPState.ZFlag));
-            z = context.BitwiseAnd(z, Const(1));
-
-            Operand n = context.ShiftRightUI(t, Const((int)FPState.NFlag));
-            n = context.BitwiseAnd(n, Const(1));
-
-            SetFpFlag(context, FPState.VFlag, v);
-            SetFpFlag(context, FPState.CFlag, c);
-            SetFpFlag(context, FPState.ZFlag, z);
-            SetFpFlag(context, FPState.NFlag, n);
-
-            context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpscr)), t);
+            for (int flag = 0; flag < RegisterConsts.FpFlagsCount; flag++)
+            {
+                if (FPSCR.Mask.HasFlag((FPSCR)(1u << flag)))
+                {
+                    SetFpFlag(context, (FPState)flag, context.BitwiseAnd(context.ShiftRightUI(fpscr, Const(flag)), Const(1)));
+                }
+            }
         }
     }
 }

ARMeilleure/Instructions/NativeInterface.cs

@@ -72,29 +72,6 @@ namespace ARMeilleure.Instructions
             return (ulong)GetContext().DczidEl0;
         }
 
-        public static ulong GetFpcr()
-        {
-            return (ulong)GetContext().Fpcr;
-        }
-
-        public static bool GetFpcrFz()
-        {
-            return (GetContext().Fpcr & FPCR.Fz) != 0;
-        }
-
-        public static ulong GetFpsr()
-        {
-            return (ulong)GetContext().Fpsr;
-        }
-
-        public static uint GetFpscr()
-        {
-            ExecutionContext context = GetContext();
-
-            return (uint)(context.Fpsr & FPSR.A32Mask & ~FPSR.Nzcv) |
-                   (uint)(context.Fpcr & FPCR.A32Mask);
-        }
-
         public static ulong GetTpidrEl0()
         {
             return (ulong)GetContext().TpidrEl0;
@@ -130,29 +107,6 @@ namespace ARMeilleure.Instructions
             return GetContext().CntvctEl0;
         }
 
-        public static void SetFpcr(ulong value)
-        {
-            GetContext().Fpcr = (FPCR)value;
-        }
-
-        public static void SetFpsr(ulong value)
-        {
-            GetContext().Fpsr = (FPSR)value;
-        }
-
-        public static void SetFpsrQc()
-        {
-            GetContext().Fpsr |= FPSR.Qc;
-        }
-
-        public static void SetFpscr(uint fpscr)
-        {
-            ExecutionContext context = GetContext();
-
-            context.Fpsr = FPSR.A32Mask & (FPSR)fpscr;
-            context.Fpcr = FPCR.A32Mask & (FPCR)fpscr;
-        }
-
         public static void SetTpidrEl0(ulong value)
         {
             GetContext().TpidrEl0 = (long)value;

ARMeilleure/Instructions/SoftFallback.cs

@@ -91,76 +91,6 @@ namespace ARMeilleure.Instructions
         }
 #endregion
 
-#region "Rounding"
-        public static double Round(double value)
-        {
-            ExecutionContext context = NativeInterface.GetContext();
-
-            FPRoundingMode roundMode = context.Fpcr.GetRoundingMode();
-
-            if (roundMode == FPRoundingMode.ToNearest)
-            {
-                return Math.Round(value); // even
-            }
-            else if (roundMode == FPRoundingMode.TowardsPlusInfinity)
-            {
-                return Math.Ceiling(value);
-            }
-            else if (roundMode == FPRoundingMode.TowardsMinusInfinity)
-            {
-                return Math.Floor(value);
-            }
-            else /* if (roundMode == FPRoundingMode.TowardsZero) */
-            {
-                return Math.Truncate(value);
-            }
-        }
-
-        public static float RoundF(float value)
-        {
-            ExecutionContext context = NativeInterface.GetContext();
-
-            FPRoundingMode roundMode = context.Fpcr.GetRoundingMode();
-
-            if (roundMode == FPRoundingMode.ToNearest)
-            {
-                return MathF.Round(value); // even
-            }
-            else if (roundMode == FPRoundingMode.TowardsPlusInfinity)
-            {
-                return MathF.Ceiling(value);
-            }
-            else if (roundMode == FPRoundingMode.TowardsMinusInfinity)
-            {
-                return MathF.Floor(value);
-            }
-            else /* if (roundMode == FPRoundingMode.TowardsZero) */
-            {
-                return MathF.Truncate(value);
-            }
-        }
-
-        public static int FloatToInt32(float value)
-        {
-            return SatF32ToS32(RoundF(value));
-        }
-
-        public static int DoubleToInt32(double value)
-        {
-            return SatF64ToS32(Round(value));
-        }
-
-        public static uint FloatToUInt32(float value)
-        {
-            return SatF32ToU32(RoundF(value));
-        }
-
-        public static uint DoubleToUInt32(double value)
-        {
-            return SatF64ToU32(Round(value));
-        }
-#endregion
-
 #region "Saturation"
         public static int SatF32ToS32(float value)
         {

ARMeilleure/Instructions/SoftFloat.cs

@@ -12,8 +12,8 @@ namespace ARMeilleure.Instructions
             RecipSqrtEstimateTable = BuildRecipSqrtEstimateTable();
         }
 
-        internal static readonly byte[] RecipEstimateTable;
-        internal static readonly byte[] RecipSqrtEstimateTable;
+        public static readonly byte[] RecipEstimateTable;
+        public static readonly byte[] RecipSqrtEstimateTable;
 
         private static byte[] BuildRecipEstimateTable()
         {
@@ -94,6 +94,13 @@ namespace ARMeilleure.Instructions
                 context.Fpsr |= (FPSR)(1 << (int)exc);
             }
         }
+
+        public static FPRoundingMode GetRoundingMode(this FPCR fpcr)
+        {
+            const int RModeShift = 22;
+
+            return (FPRoundingMode)(((uint)fpcr >> RModeShift) & 3u);
+        }
     }
 
     static class SoftFloat16

ARMeilleure/State/ExecutionContext.cs

@@ -36,10 +36,25 @@ namespace ARMeilleure.State
             set => _nativeContext.SetPstate(value);
         }
 
-        public FPCR Fpcr { get; set; }
-        public FPSR Fpsr { get; set; }
+        public FPSR Fpsr
+        {
+            get => (FPSR)_nativeContext.GetFPState((uint)FPSR.Mask);
+            set => _nativeContext.SetFPState((uint)value, (uint)FPSR.Mask);
+        }
+
+        public FPCR Fpcr
+        {
+            get => (FPCR)_nativeContext.GetFPState((uint)FPCR.Mask);
+            set => _nativeContext.SetFPState((uint)value, (uint)FPCR.Mask);
+        }
         public FPCR StandardFpcrValue => (Fpcr & (FPCR.Ahp)) | FPCR.Dn | FPCR.Fz;
 
+        public FPSCR Fpscr
+        {
+            get => (FPSCR)_nativeContext.GetFPState((uint)FPSCR.Mask);
+            set => _nativeContext.SetFPState((uint)value, (uint)FPSCR.Mask);
+        }
+
         public bool IsAarch32 { get; set; }
 
         internal ExecutionMode ExecutionMode

ARMeilleure/State/FPCR.cs

@@ -5,21 +5,18 @@ namespace ARMeilleure.State
     [Flags]
     public enum FPCR : uint
     {
+        Ioe = 1u << 8,
+        Dze = 1u << 9,
+        Ofe = 1u << 10,
         Ufe = 1u << 11,
+        Ixe = 1u << 12,
+        Ide = 1u << 15,
+        RMode0 = 1u << 22,
+        RMode1 = 1u << 23,
         Fz  = 1u << 24,
         Dn  = 1u << 25,
         Ahp = 1u << 26,
 
-        A32Mask = 0x07FF9F00u
-    }
-
-    public static class FPCRExtensions
-    {
-        private const int RModeShift = 22;
-
-        public static FPRoundingMode GetRoundingMode(this FPCR fpcr)
-        {
-            return (FPRoundingMode)(((int)fpcr >> RModeShift) & 3);
-        }
+        Mask = Ahp | Dn | Fz | RMode1 | RMode0 | Ide | Ixe | Ufe | Ofe | Dze | Ioe // 0x07C09F00u
     }
 }

ARMeilleure/State/FPSCR.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace ARMeilleure.State
+{
+    [Flags]
+    public enum FPSCR : uint
+    {
+        V = 1u << 28,
+        C = 1u << 29,
+        Z = 1u << 30,
+        N = 1u << 31,
+
+        Mask = N | Z | C | V | FPSR.Mask | FPCR.Mask // 0xFFC09F9Fu
+    }
+}

ARMeilleure/State/FPSR.cs

@@ -5,11 +5,14 @@ namespace ARMeilleure.State
     [Flags]
     public enum FPSR : uint
     {
+        Ioc = 1u << 0,
+        Dzc = 1u << 1,
+        Ofc = 1u << 2,
         Ufc = 1u << 3,
-        Qc  = 1u << 27,
+        Ixc = 1u << 4,
+        Idc = 1u << 7,
+        Qc = 1u << 27,
 
-        Nzcv = (1u << 31) | (1u << 30) | (1u << 29) | (1u << 28),
-
-        A32Mask = 0xF800009Fu
+        Mask = Qc | Idc | Ixc | Ufc | Ofc | Dzc | Ioc // 0x0800009Fu
     }
 }

ARMeilleure/State/FPState.cs

@@ -2,9 +2,30 @@
 {
     public enum FPState
     {
+        // FPSR Flags.
+        IocFlag = 0,
+        DzcFlag = 1,
+        OfcFlag = 2,
+        UfcFlag = 3,
+        IxcFlag = 4,
+        IdcFlag = 7,
+        QcFlag = 27,
         VFlag = 28,
         CFlag = 29,
         ZFlag = 30,
-        NFlag = 31
+        NFlag = 31,
+
+        // FPCR Flags.
+        IoeFlag = 8,
+        DzeFlag = 9,
+        OfeFlag = 10,
+        UfeFlag = 11,
+        IxeFlag = 12,
+        IdeFlag = 15,
+        RMode0Flag = 22,
+        RMode1Flag = 23,
+        FzFlag = 24,
+        DnFlag = 25,
+        AhpFlag = 26
     }
 }

ARMeilleure/State/NativeContext.cs

@@ -140,6 +140,34 @@ namespace ARMeilleure.State
             GetStorage().FpFlags[(int)flag] = value ? 1u : 0u;
         }
 
+        public unsafe uint GetFPState(uint mask = uint.MaxValue)
+        {
+            uint value = 0;
+            for (int flag = 0; flag < RegisterConsts.FpFlagsCount; flag++)
+            {
+                uint bit = 1u << flag;
+
+                if ((mask & bit) == bit)
+                {
+                    value |= GetStorage().FpFlags[flag] != 0 ? bit : 0u;
+                }
+            }
+            return value;
+        }
+
+        public unsafe void SetFPState(uint value, uint mask = uint.MaxValue)
+        {
+            for (int flag = 0; flag < RegisterConsts.FpFlagsCount; flag++)
+            {
+                uint bit = 1u << flag;
+
+                if ((mask & bit) == bit)
+                {
+                    GetStorage().FpFlags[flag] = (value & bit) == bit ? 1u : 0u;
+                }
+            }
+        }
+
         public int GetCounter() => GetStorage().Counter;
         public void SetCounter(int value) => GetStorage().Counter = value;
 

ARMeilleure/Translation/Delegates.cs

@@ -109,10 +109,6 @@ namespace ARMeilleure.Translation
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetCntvctEl0)));
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetCtrEl0)));
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetDczidEl0)));
-            SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcr)));
-            SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcrFz)));
-            SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpscr))); // A32 only.
-            SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpsr)));
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFunctionAddress)));
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.InvalidateCacheLine)));
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidrroEl0)));
@@ -124,10 +120,6 @@ namespace ARMeilleure.Translation
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt32)));
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt64)));
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadVector128)));
-            SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpcr)));
-            SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpscr))); // A32 only.
-            SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsr)));
-            SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetFpsrQc)));
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetTpidrEl0)));
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetTpidrEl032))); // A32 only.
             SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SignalMemoryTracking)));
@@ -151,12 +143,8 @@ namespace ARMeilleure.Translation
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Crc32w)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Crc32x)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Decrypt)));
-            SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.DoubleToInt32))); // A32 only.
-            SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.DoubleToUInt32))); // A32 only.
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Encrypt)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.FixedRotate)));
-            SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.FloatToInt32))); // A32 only.
-            SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.FloatToUInt32))); // A32 only.
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.HashChoose)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.HashLower)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.HashMajority)));
@@ -165,8 +153,6 @@ namespace ARMeilleure.Translation
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.InverseMixColumns)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.MixColumns)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.PolynomialMult64_128)));
-            SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Round)));
-            SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.RoundF)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.SatF32ToS32)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.SatF32ToS64)));
             SetDelegateInfo(typeof(SoftFallback).GetMethod(nameof(SoftFallback.SatF32ToU32)));

ARMeilleure/Translation/PTC/Ptc.cs

@@ -27,7 +27,7 @@ namespace ARMeilleure.Translation.PTC
         private const string OuterHeaderMagicString = "PTCohd\0\0";
         private const string InnerHeaderMagicString = "PTCihd\0\0";
 
-        private const uint InternalVersion = 3700; //! To be incremented manually for each change to the ARMeilleure project.
+        private const uint InternalVersion = 3703; //! To be incremented manually for each change to the ARMeilleure project.
 
         private const string ActualDir = "0";
         private const string BackupDir = "1";

Ryujinx.Tests/Cpu/CpuTest32.cs

@@ -162,7 +162,7 @@ namespace Ryujinx.Tests.Cpu
             _context.SetPstateFlag(PState.ZFlag, zero);
             _context.SetPstateFlag(PState.NFlag, negative);
 
-            SetFpscr((uint)fpscr);
+            _context.Fpscr = (FPSCR)fpscr;
 
             _context.SetPstateFlag(PState.TFlag, thumb);
 
@@ -467,7 +467,7 @@ namespace Ryujinx.Tests.Cpu
                 Assert.That(_context.GetPstateFlag(PState.NFlag), Is.EqualTo(_unicornEmu.NegativeFlag), "NFlag");
             });
 
-            Assert.That((int)GetFpscr() & (int)fpsrMask, Is.EqualTo(_unicornEmu.Fpscr & (int)fpsrMask), "Fpscr");
+            Assert.That((int)_context.Fpscr & (int)fpsrMask, Is.EqualTo(_unicornEmu.Fpscr & (int)fpsrMask), "Fpscr");
 
             if (_usingMemory)
             {
@@ -650,28 +650,5 @@ namespace Ryujinx.Tests.Cpu
 
             return rnd & 0x800FFFFFFFFFFFFFul;
         }
-
-        private uint GetFpscr()
-        {
-            uint fpscr = (uint)(_context.Fpsr & FPSR.A32Mask & ~FPSR.Nzcv) | (uint)(_context.Fpcr & FPCR.A32Mask);
-
-            fpscr |= _context.GetFPstateFlag(FPState.NFlag) ? (1u << (int)FPState.NFlag) : 0;
-            fpscr |= _context.GetFPstateFlag(FPState.ZFlag) ? (1u << (int)FPState.ZFlag) : 0;
-            fpscr |= _context.GetFPstateFlag(FPState.CFlag) ? (1u << (int)FPState.CFlag) : 0;
-            fpscr |= _context.GetFPstateFlag(FPState.VFlag) ? (1u << (int)FPState.VFlag) : 0;
-
-            return fpscr;
-        }
-
-        private void SetFpscr(uint fpscr)
-        {
-            _context.Fpsr = FPSR.A32Mask & (FPSR)fpscr;
-            _context.Fpcr = FPCR.A32Mask & (FPCR)fpscr;
-
-            _context.SetFPstateFlag(FPState.NFlag, (fpscr & (1u << (int)FPState.NFlag)) != 0);
-            _context.SetFPstateFlag(FPState.ZFlag, (fpscr & (1u << (int)FPState.ZFlag)) != 0);
-            _context.SetFPstateFlag(FPState.CFlag, (fpscr & (1u << (int)FPState.CFlag)) != 0);
-            _context.SetFPstateFlag(FPState.VFlag, (fpscr & (1u << (int)FPState.VFlag)) != 0);
-        }
     }
 }