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, 212 insertions, 0 deletions

diff --git a/ChocolArm64/Instructions/InstEmitAluHelper.cs b/ChocolArm64/Instructions/InstEmitAluHelper.cs
new file mode 100644
index 00000000..613dd234
--- /dev/null
+++ b/ChocolArm64/Instructions/InstEmitAluHelper.cs
@@ -0,0 +1,212 @@
+using ChocolArm64.Decoders;
+using ChocolArm64.State;
+using ChocolArm64.Translation;
+using System.Reflection.Emit;
+
+namespace ChocolArm64.Instructions
+{
+    static class InstEmitAluHelper
+    {
+        public static void EmitAdcsCCheck(ILEmitterCtx context)
+        {
+            //C = (Rd == Rn && CIn) || Rd < Rn
+            context.EmitSttmp();
+            context.EmitLdtmp();
+            context.EmitLdtmp();
+
+            EmitDataLoadRn(context);
+
+            context.Emit(OpCodes.Ceq);
+
+            context.EmitLdflg((int)PState.CBit);
+
+            context.Emit(OpCodes.And);
+
+            context.EmitLdtmp();
+
+            EmitDataLoadRn(context);
+
+            context.Emit(OpCodes.Clt_Un);
+            context.Emit(OpCodes.Or);
+
+            context.EmitStflg((int)PState.CBit);
+        }
+
+        public static void EmitAddsCCheck(ILEmitterCtx context)
+        {
+            //C = Rd < Rn
+            context.Emit(OpCodes.Dup);
+
+            EmitDataLoadRn(context);
+
+            context.Emit(OpCodes.Clt_Un);
+
+            context.EmitStflg((int)PState.CBit);
+        }
+
+        public static void EmitAddsVCheck(ILEmitterCtx context)
+        {
+            //V = (Rd ^ Rn) & ~(Rn ^ Rm) < 0
+            context.Emit(OpCodes.Dup);
+
+            EmitDataLoadRn(context);
+
+            context.Emit(OpCodes.Xor);
+
+            EmitDataLoadOpers(context);
+
+            context.Emit(OpCodes.Xor);
+            context.Emit(OpCodes.Not);
+            context.Emit(OpCodes.And);
+
+            context.EmitLdc_I(0);
+
+            context.Emit(OpCodes.Clt);
+
+            context.EmitStflg((int)PState.VBit);
+        }
+
+        public static void EmitSbcsCCheck(ILEmitterCtx context)
+        {
+            //C = (Rn == Rm && CIn) || Rn > Rm
+            EmitDataLoadOpers(context);
+
+            context.Emit(OpCodes.Ceq);
+
+            context.EmitLdflg((int)PState.CBit);
+
+            context.Emit(OpCodes.And);
+
+            EmitDataLoadOpers(context);
+
+            context.Emit(OpCodes.Cgt_Un);
+            context.Emit(OpCodes.Or);
+
+            context.EmitStflg((int)PState.CBit);
+        }
+
+        public static void EmitSubsCCheck(ILEmitterCtx context)
+        {
+            //C = Rn == Rm || Rn > Rm = !(Rn < Rm)
+            EmitDataLoadOpers(context);
+
+            context.Emit(OpCodes.Clt_Un);
+
+            context.EmitLdc_I4(1);
+
+            context.Emit(OpCodes.Xor);
+
+            context.EmitStflg((int)PState.CBit);
+        }
+
+        public static void EmitSubsVCheck(ILEmitterCtx context)
+        {
+            //V = (Rd ^ Rn) & (Rn ^ Rm) < 0
+            context.Emit(OpCodes.Dup);
+
+            EmitDataLoadRn(context);
+
+            context.Emit(OpCodes.Xor);
+
+            EmitDataLoadOpers(context);
+
+            context.Emit(OpCodes.Xor);
+            context.Emit(OpCodes.And);
+
+            context.EmitLdc_I(0);
+
+            context.Emit(OpCodes.Clt);
+
+            context.EmitStflg((int)PState.VBit);
+        }
+
+        public static void EmitDataLoadRm(ILEmitterCtx context)
+        {
+            context.EmitLdintzr(((IOpCodeAluRs64)context.CurrOp).Rm);
+        }
+
+        public static void EmitDataLoadOpers(ILEmitterCtx context)
+        {
+            EmitDataLoadRn(context);
+            EmitDataLoadOper2(context);
+        }
+
+        public static void EmitDataLoadRn(ILEmitterCtx context)
+        {
+            IOpCodeAlu64 op = (IOpCodeAlu64)context.CurrOp;
+
+            if (op.DataOp == DataOp.Logical || op is IOpCodeAluRs64)
+            {
+                context.EmitLdintzr(op.Rn);
+            }
+            else
+            {
+                context.EmitLdint(op.Rn);
+            }
+        }
+
+        public static void EmitDataLoadOper2(ILEmitterCtx context)
+        {
+            switch (context.CurrOp)
+            {
+                case IOpCodeAluImm64 op:
+                    context.EmitLdc_I(op.Imm);
+                    break;
+
+                case IOpCodeAluRs64 op:
+                    context.EmitLdintzr(op.Rm);
+
+                    switch (op.ShiftType)
+                    {
+                        case ShiftType.Lsl: context.EmitLsl(op.Shift); break;
+                        case ShiftType.Lsr: context.EmitLsr(op.Shift); break;
+                        case ShiftType.Asr: context.EmitAsr(op.Shift); break;
+                        case ShiftType.Ror: context.EmitRor(op.Shift); break;
+                    }
+                    break;
+
+                case IOpCodeAluRx64 op:
+                    context.EmitLdintzr(op.Rm);
+                    context.EmitCast(op.IntType);
+                    context.EmitLsl(op.Shift);
+                    break;
+            }
+        }
+
+        public static void EmitDataStore(ILEmitterCtx context)  => EmitDataStore(context, false);
+        public static void EmitDataStoreS(ILEmitterCtx context) => EmitDataStore(context, true);
+
+        public static void EmitDataStore(ILEmitterCtx context, bool setFlags)
+        {
+            IOpCodeAlu64 op = (IOpCodeAlu64)context.CurrOp;
+
+            if (setFlags || op is IOpCodeAluRs64)
+            {
+                context.EmitStintzr(op.Rd);
+            }
+            else
+            {
+                context.EmitStint(op.Rd);
+            }
+        }
+
+        public static void EmitSetNzcv(ILEmitterCtx context, int nzcv)
+        {
+            context.EmitLdc_I4((nzcv >> 0) & 1);
+
+            context.EmitStflg((int)PState.VBit);
+
+            context.EmitLdc_I4((nzcv >> 1) & 1);
+
+            context.EmitStflg((int)PState.CBit);
+
+            context.EmitLdc_I4((nzcv >> 2) & 1);
+
+            context.EmitStflg((int)PState.ZBit);
+
+            context.EmitLdc_I4((nzcv >> 3) & 1);
+
+            context.EmitStflg((int)PState.NBit);
+        }
+    }
+}
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