Adjust naming conventions for Ryujinx and ChocolArm64 projects (#484)

* Change naming convention for Ryujinx project

* Change naming convention for ChocolArm64 project

* Fix NaN

* Remove unneeded this. from Ryujinx project

* Adjust naming from new PRs

* Name changes based on feedback

* How did this get removed?

* Rebasing fix

* Change FP enum case

* Remove prefix from ChocolArm64 classes - Part 1

* Remove prefix from ChocolArm64 classes - Part 2

* Fix alignment from last commit's renaming

* Rename namespaces

* Rename stragglers

* Fix alignment

* Rename OpCode class

* Missed a few

* Adjust alignment

1 files changed, 554 insertions, 0 deletions

diff --git a/ChocolArm64/Translation/ILEmitterCtx.cs b/ChocolArm64/Translation/ILEmitterCtx.cs
new file mode 100644
index 00000000..c1d1be36
--- /dev/null
+++ b/ChocolArm64/Translation/ILEmitterCtx.cs
@@ -0,0 +1,554 @@
+using ChocolArm64.Decoders;
+using ChocolArm64.Instructions;
+using ChocolArm64.State;
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Reflection.Emit;
+
+namespace ChocolArm64.Translation
+{
+    class ILEmitterCtx
+    {
+        private TranslatorCache _cache;
+
+        private Dictionary<long, ILLabel> _labels;
+
+        private int _blkIndex;
+        private int _opcIndex;
+
+        private Block[]   _graph;
+        private Block     _root;
+        public  Block     CurrBlock => _graph[_blkIndex];
+        public  OpCode64  CurrOp    => _graph[_blkIndex].OpCodes[_opcIndex];
+
+        private ILEmitter _emitter;
+
+        private ILBlock _ilBlock;
+
+        private OpCode64 _optOpLastCompare;
+        private OpCode64 _optOpLastFlagSet;
+
+        //This is the index of the temporary register, used to store temporary
+        //values needed by some functions, since IL doesn't have a swap instruction.
+        //You can use any value here as long it doesn't conflict with the indices
+        //for the other registers. Any value >= 64 or < 0 will do.
+        private const int Tmp1Index = -1;
+        private const int Tmp2Index = -2;
+        private const int Tmp3Index = -3;
+        private const int Tmp4Index = -4;
+        private const int Tmp5Index = -5;
+        private const int Tmp6Index = -6;
+
+        public ILEmitterCtx(
+            TranslatorCache cache,
+            Block[]         graph,
+            Block           root,
+            string          subName)
+        {
+            _cache = cache ?? throw new ArgumentNullException(nameof(cache));
+            _graph = graph ?? throw new ArgumentNullException(nameof(graph));
+            _root  = root  ?? throw new ArgumentNullException(nameof(root));
+
+            _labels = new Dictionary<long, ILLabel>();
+
+            _emitter = new ILEmitter(graph, root, subName);
+
+            _ilBlock = _emitter.GetIlBlock(0);
+
+            _opcIndex = -1;
+
+            if (graph.Length == 0 || !AdvanceOpCode())
+            {
+                throw new ArgumentException(nameof(graph));
+            }
+        }
+
+        public TranslatedSub GetSubroutine()
+        {
+            return _emitter.GetSubroutine();
+        }
+
+        public bool AdvanceOpCode()
+        {
+            if (_opcIndex + 1 == CurrBlock.OpCodes.Count &&
+                _blkIndex + 1 == _graph.Length)
+            {
+                return false;
+            }
+
+            while (++_opcIndex >= (CurrBlock?.OpCodes.Count ?? 0))
+            {
+                _blkIndex++;
+                _opcIndex = -1;
+
+                _optOpLastFlagSet = null;
+                _optOpLastCompare = null;
+
+                _ilBlock = _emitter.GetIlBlock(_blkIndex);
+            }
+
+            return true;
+        }
+
+        public void EmitOpCode()
+        {
+            if (_opcIndex == 0)
+            {
+                MarkLabel(GetLabel(CurrBlock.Position));
+
+                EmitSynchronization();
+            }
+
+            CurrOp.Emitter(this);
+
+            _ilBlock.Add(new ILBarrier());
+        }
+
+        private void EmitSynchronization()
+        {
+            EmitLdarg(TranslatedSub.StateArgIdx);
+
+            EmitLdc_I4(CurrBlock.OpCodes.Count);
+
+            EmitPrivateCall(typeof(CpuThreadState), nameof(CpuThreadState.Synchronize));
+
+            EmitLdc_I4(0);
+
+            ILLabel lblContinue = new ILLabel();
+
+            Emit(OpCodes.Bne_Un_S, lblContinue);
+
+            EmitLdc_I8(0);
+
+            Emit(OpCodes.Ret);
+
+            MarkLabel(lblContinue);
+        }
+
+        public bool TryOptEmitSubroutineCall()
+        {
+            if (CurrBlock.Next == null)
+            {
+                return false;
+            }
+
+            if (CurrOp.Emitter != InstEmit.Bl)
+            {
+                return false;
+            }
+
+            if (!_cache.TryGetSubroutine(((OpCodeBImmAl64)CurrOp).Imm, out TranslatedSub subroutine))
+            {
+                return false;
+            }
+
+            for (int index = 0; index < TranslatedSub.FixedArgTypes.Length; index++)
+            {
+                EmitLdarg(index);
+            }
+
+            foreach (Register reg in subroutine.Params)
+            {
+                switch (reg.Type)
+                {
+                    case RegisterType.Flag:   Ldloc(reg.Index, IoType.Flag);   break;
+                    case RegisterType.Int:    Ldloc(reg.Index, IoType.Int);    break;
+                    case RegisterType.Vector: Ldloc(reg.Index, IoType.Vector); break;
+                }
+            }
+
+            EmitCall(subroutine.Method);
+
+            subroutine.AddCaller(_root.Position);
+
+            return true;
+        }
+
+        public void TryOptMarkCondWithoutCmp()
+        {
+            _optOpLastCompare = CurrOp;
+
+            InstEmitAluHelper.EmitDataLoadOpers(this);
+
+            Stloc(Tmp4Index, IoType.Int);
+            Stloc(Tmp3Index, IoType.Int);
+        }
+
+        private Dictionary<Cond, System.Reflection.Emit.OpCode> _branchOps = new Dictionary<Cond, System.Reflection.Emit.OpCode>()
+        {
+            { Cond.Eq,   OpCodes.Beq    },
+            { Cond.Ne,   OpCodes.Bne_Un },
+            { Cond.GeUn, OpCodes.Bge_Un },
+            { Cond.LtUn, OpCodes.Blt_Un },
+            { Cond.GtUn, OpCodes.Bgt_Un },
+            { Cond.LeUn, OpCodes.Ble_Un },
+            { Cond.Ge,   OpCodes.Bge    },
+            { Cond.Lt,   OpCodes.Blt    },
+            { Cond.Gt,   OpCodes.Bgt    },
+            { Cond.Le,   OpCodes.Ble    }
+        };
+
+        public void EmitCondBranch(ILLabel target, Cond cond)
+        {
+            System.Reflection.Emit.OpCode ilOp;
+
+            int intCond = (int)cond;
+
+            if (_optOpLastCompare != null &&
+                _optOpLastCompare == _optOpLastFlagSet && _branchOps.ContainsKey(cond))
+            {
+                Ldloc(Tmp3Index, IoType.Int, _optOpLastCompare.RegisterSize);
+                Ldloc(Tmp4Index, IoType.Int, _optOpLastCompare.RegisterSize);
+
+                ilOp = _branchOps[cond];
+            }
+            else if (intCond < 14)
+            {
+                int condTrue = intCond >> 1;
+
+                switch (condTrue)
+                {
+                    case 0: EmitLdflg((int)PState.ZBit); break;
+                    case 1: EmitLdflg((int)PState.CBit); break;
+                    case 2: EmitLdflg((int)PState.NBit); break;
+                    case 3: EmitLdflg((int)PState.VBit); break;
+
+                    case 4:
+                        EmitLdflg((int)PState.CBit);
+                        EmitLdflg((int)PState.ZBit);
+
+                        Emit(OpCodes.Not);
+                        Emit(OpCodes.And);
+                        break;
+
+                    case 5:
+                    case 6:
+                        EmitLdflg((int)PState.NBit);
+                        EmitLdflg((int)PState.VBit);
+
+                        Emit(OpCodes.Ceq);
+
+                        if (condTrue == 6)
+                        {
+                            EmitLdflg((int)PState.ZBit);
+
+                            Emit(OpCodes.Not);
+                            Emit(OpCodes.And);
+                        }
+                        break;
+                }
+
+                ilOp = (intCond & 1) != 0
+                    ? OpCodes.Brfalse
+                    : OpCodes.Brtrue;
+            }
+            else
+            {
+                ilOp = OpCodes.Br;
+            }
+
+            Emit(ilOp, target);
+        }
+
+        public void EmitCast(IntType intType)
+        {
+            switch (intType)
+            {
+                case IntType.UInt8:  Emit(OpCodes.Conv_U1); break;
+                case IntType.UInt16: Emit(OpCodes.Conv_U2); break;
+                case IntType.UInt32: Emit(OpCodes.Conv_U4); break;
+                case IntType.UInt64: Emit(OpCodes.Conv_U8); break;
+                case IntType.Int8:   Emit(OpCodes.Conv_I1); break;
+                case IntType.Int16:  Emit(OpCodes.Conv_I2); break;
+                case IntType.Int32:  Emit(OpCodes.Conv_I4); break;
+                case IntType.Int64:  Emit(OpCodes.Conv_I8); break;
+            }
+
+            bool sz64 = CurrOp.RegisterSize != RegisterSize.Int32;
+
+            if (sz64 == (intType == IntType.UInt64 ||
+                         intType == IntType.Int64))
+            {
+                return;
+            }
+
+            if (sz64)
+            {
+                Emit(intType >= IntType.Int8
+                    ? OpCodes.Conv_I8
+                    : OpCodes.Conv_U8);
+            }
+            else
+            {
+                Emit(OpCodes.Conv_U4);
+            }
+        }
+
+        public void EmitLsl(int amount) => EmitIlShift(amount, OpCodes.Shl);
+        public void EmitLsr(int amount) => EmitIlShift(amount, OpCodes.Shr_Un);
+        public void EmitAsr(int amount) => EmitIlShift(amount, OpCodes.Shr);
+
+        private void EmitIlShift(int amount, System.Reflection.Emit.OpCode ilOp)
+        {
+            if (amount > 0)
+            {
+                EmitLdc_I4(amount);
+
+                Emit(ilOp);
+            }
+        }
+
+        public void EmitRor(int amount)
+        {
+            if (amount > 0)
+            {
+                Stloc(Tmp2Index, IoType.Int);
+                Ldloc(Tmp2Index, IoType.Int);
+
+                EmitLdc_I4(amount);
+
+                Emit(OpCodes.Shr_Un);
+
+                Ldloc(Tmp2Index, IoType.Int);
+
+                EmitLdc_I4(CurrOp.GetBitsCount() - amount);
+
+                Emit(OpCodes.Shl);
+                Emit(OpCodes.Or);
+            }
+        }
+
+        public ILLabel GetLabel(long position)
+        {
+            if (!_labels.TryGetValue(position, out ILLabel output))
+            {
+                output = new ILLabel();
+
+                _labels.Add(position, output);
+            }
+
+            return output;
+        }
+
+        public void MarkLabel(ILLabel label)
+        {
+            _ilBlock.Add(label);
+        }
+
+        public void Emit(System.Reflection.Emit.OpCode ilOp)
+        {
+            _ilBlock.Add(new ILOpCode(ilOp));
+        }
+
+        public void Emit(System.Reflection.Emit.OpCode ilOp, ILLabel label)
+        {
+            _ilBlock.Add(new ILOpCodeBranch(ilOp, label));
+        }
+
+        public void Emit(string text)
+        {
+            _ilBlock.Add(new ILOpCodeLog(text));
+        }
+
+        public void EmitLdarg(int index)
+        {
+            _ilBlock.Add(new IlOpCodeLoad(index, IoType.Arg));
+        }
+
+        public void EmitLdintzr(int index)
+        {
+            if (index != CpuThreadState.ZrIndex)
+            {
+                EmitLdint(index);
+            }
+            else
+            {
+                EmitLdc_I(0);
+            }
+        }
+
+        public void EmitStintzr(int index)
+        {
+            if (index != CpuThreadState.ZrIndex)
+            {
+                EmitStint(index);
+            }
+            else
+            {
+                Emit(OpCodes.Pop);
+            }
+        }
+
+        public void EmitLoadState(Block retBlk)
+        {
+            _ilBlock.Add(new IlOpCodeLoad(Array.IndexOf(_graph, retBlk), IoType.Fields));
+        }
+
+        public void EmitStoreState()
+        {
+            _ilBlock.Add(new IlOpCodeStore(Array.IndexOf(_graph, CurrBlock), IoType.Fields));
+        }
+
+        public void EmitLdtmp() => EmitLdint(Tmp1Index);
+        public void EmitSttmp() => EmitStint(Tmp1Index);
+
+        public void EmitLdvectmp() => EmitLdvec(Tmp5Index);
+        public void EmitStvectmp() => EmitStvec(Tmp5Index);
+
+        public void EmitLdvectmp2() => EmitLdvec(Tmp6Index);
+        public void EmitStvectmp2() => EmitStvec(Tmp6Index);
+
+        public void EmitLdint(int index) => Ldloc(index, IoType.Int);
+        public void EmitStint(int index) => Stloc(index, IoType.Int);
+
+        public void EmitLdvec(int index) => Ldloc(index, IoType.Vector);
+        public void EmitStvec(int index) => Stloc(index, IoType.Vector);
+
+        public void EmitLdflg(int index) => Ldloc(index, IoType.Flag);
+        public void EmitStflg(int index)
+        {
+            _optOpLastFlagSet = CurrOp;
+
+            Stloc(index, IoType.Flag);
+        }
+
+        private void Ldloc(int index, IoType ioType)
+        {
+            _ilBlock.Add(new IlOpCodeLoad(index, ioType, CurrOp.RegisterSize));
+        }
+
+        private void Ldloc(int index, IoType ioType, RegisterSize registerSize)
+        {
+            _ilBlock.Add(new IlOpCodeLoad(index, ioType, registerSize));
+        }
+
+        private void Stloc(int index, IoType ioType)
+        {
+            _ilBlock.Add(new IlOpCodeStore(index, ioType, CurrOp.RegisterSize));
+        }
+
+        public void EmitCallPropGet(Type objType, string propName)
+        {
+            if (objType == null)
+            {
+                throw new ArgumentNullException(nameof(objType));
+            }
+
+            if (propName == null)
+            {
+                throw new ArgumentNullException(nameof(propName));
+            }
+
+            EmitCall(objType.GetMethod($"get_{propName}"));
+        }
+
+        public void EmitCallPropSet(Type objType, string propName)
+        {
+            if (objType == null)
+            {
+                throw new ArgumentNullException(nameof(objType));
+            }
+
+            if (propName == null)
+            {
+                throw new ArgumentNullException(nameof(propName));
+            }
+
+            EmitCall(objType.GetMethod($"set_{propName}"));
+        }
+
+        public void EmitCall(Type objType, string mthdName)
+        {
+            if (objType == null)
+            {
+                throw new ArgumentNullException(nameof(objType));
+            }
+
+            if (mthdName == null)
+            {
+                throw new ArgumentNullException(nameof(mthdName));
+            }
+
+            EmitCall(objType.GetMethod(mthdName));
+        }
+
+        public void EmitPrivateCall(Type objType, string mthdName)
+        {
+            if (objType == null)
+            {
+                throw new ArgumentNullException(nameof(objType));
+            }
+
+            if (mthdName == null)
+            {
+                throw new ArgumentNullException(nameof(mthdName));
+            }
+
+            EmitCall(objType.GetMethod(mthdName, BindingFlags.Instance | BindingFlags.NonPublic));
+        }
+
+        public void EmitCall(MethodInfo mthdInfo)
+        {
+            if (mthdInfo == null)
+            {
+                throw new ArgumentNullException(nameof(mthdInfo));
+            }
+
+            _ilBlock.Add(new ILOpCodeCall(mthdInfo));
+        }
+
+        public void EmitLdc_I(long value)
+        {
+            if (CurrOp.RegisterSize == RegisterSize.Int32)
+            {
+                EmitLdc_I4((int)value);
+            }
+            else
+            {
+                EmitLdc_I8(value);
+            }
+        }
+
+        public void EmitLdc_I4(int value)
+        {
+            _ilBlock.Add(new ILOpCodeConst(value));
+        }
+
+        public void EmitLdc_I8(long value)
+        {
+            _ilBlock.Add(new ILOpCodeConst(value));
+        }
+
+        public void EmitLdc_R4(float value)
+        {
+            _ilBlock.Add(new ILOpCodeConst(value));
+        }
+
+        public void EmitLdc_R8(double value)
+        {
+            _ilBlock.Add(new ILOpCodeConst(value));
+        }
+
+        public void EmitZnFlagCheck()
+        {
+            EmitZnCheck(OpCodes.Ceq, (int)PState.ZBit);
+            EmitZnCheck(OpCodes.Clt, (int)PState.NBit);
+        }
+
+        private void EmitZnCheck(System.Reflection.Emit.OpCode ilCmpOp, int flag)
+        {
+            Emit(OpCodes.Dup);
+            Emit(OpCodes.Ldc_I4_0);
+
+            if (CurrOp.RegisterSize != RegisterSize.Int32)
+            {
+                Emit(OpCodes.Conv_I8);
+            }
+
+            Emit(ilCmpOp);
+
+            EmitStflg(flag);
+        }
+    }
+}