From 9cb57fb4bb3bbae0ae052a5af4a96a49fc5d864d Mon Sep 17 00:00:00 2001
From: Alex Barney <thealexbarney@gmail.com>
Date: Tue, 30 Oct 2018 19:43:02 -0600
Subject: 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
---
 ChocolArm64/Instructions/InstEmitMemoryHelper.cs | 138 +++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 ChocolArm64/Instructions/InstEmitMemoryHelper.cs

(limited to 'ChocolArm64/Instructions/InstEmitMemoryHelper.cs')

diff --git a/ChocolArm64/Instructions/InstEmitMemoryHelper.cs b/ChocolArm64/Instructions/InstEmitMemoryHelper.cs
new file mode 100644
index 00000000..f953564c
--- /dev/null
+++ b/ChocolArm64/Instructions/InstEmitMemoryHelper.cs
@@ -0,0 +1,138 @@
+using ChocolArm64.Decoders;
+using ChocolArm64.Memory;
+using ChocolArm64.Translation;
+using System;
+using System.Reflection.Emit;
+
+namespace ChocolArm64.Instructions
+{
+    static class InstEmitMemoryHelper
+    {
+        private enum Extension
+        {
+            Zx,
+            Sx32,
+            Sx64
+        }
+
+        public static void EmitReadZxCall(ILEmitterCtx context, int size)
+        {
+            EmitReadCall(context, Extension.Zx, size);
+        }
+
+        public static void EmitReadSx32Call(ILEmitterCtx context, int size)
+        {
+            EmitReadCall(context, Extension.Sx32, size);
+        }
+
+        public static void EmitReadSx64Call(ILEmitterCtx context, int size)
+        {
+            EmitReadCall(context, Extension.Sx64, size);
+        }
+
+        private static void EmitReadCall(ILEmitterCtx context, Extension ext, int size)
+        {
+            bool isSimd = GetIsSimd(context);
+
+            string name = null;
+
+            if (size < 0 || size > (isSimd ? 4 : 3))
+            {
+                throw new ArgumentOutOfRangeException(nameof(size));
+            }
+
+            if (isSimd)
+            {
+                switch (size)
+                {
+                    case 0: name = nameof(MemoryManager.ReadVector8);   break;
+                    case 1: name = nameof(MemoryManager.ReadVector16);  break;
+                    case 2: name = nameof(MemoryManager.ReadVector32);  break;
+                    case 3: name = nameof(MemoryManager.ReadVector64);  break;
+                    case 4: name = nameof(MemoryManager.ReadVector128); break;
+                }
+            }
+            else
+            {
+                switch (size)
+                {
+                    case 0: name = nameof(MemoryManager.ReadByte);   break;
+                    case 1: name = nameof(MemoryManager.ReadUInt16); break;
+                    case 2: name = nameof(MemoryManager.ReadUInt32); break;
+                    case 3: name = nameof(MemoryManager.ReadUInt64); break;
+                }
+            }
+
+            context.EmitCall(typeof(MemoryManager), name);
+
+            if (!isSimd)
+            {
+                if (ext == Extension.Sx32 ||
+                    ext == Extension.Sx64)
+                {
+                    switch (size)
+                    {
+                        case 0: context.Emit(OpCodes.Conv_I1); break;
+                        case 1: context.Emit(OpCodes.Conv_I2); break;
+                        case 2: context.Emit(OpCodes.Conv_I4); break;
+                    }
+                }
+
+                if (size < 3)
+                {
+                    context.Emit(ext == Extension.Sx64
+                        ? OpCodes.Conv_I8
+                        : OpCodes.Conv_U8);
+                }
+            }
+        }
+
+        public static void EmitWriteCall(ILEmitterCtx context, int size)
+        {
+            bool isSimd = GetIsSimd(context);
+
+            string name = null;
+
+            if (size < 0 || size > (isSimd ? 4 : 3))
+            {
+                throw new ArgumentOutOfRangeException(nameof(size));
+            }
+
+            if (size < 3 && !isSimd)
+            {
+                context.Emit(OpCodes.Conv_I4);
+            }
+
+            if (isSimd)
+            {
+                switch (size)
+                {
+                    case 0: name = nameof(MemoryManager.WriteVector8);   break;
+                    case 1: name = nameof(MemoryManager.WriteVector16);  break;
+                    case 2: name = nameof(MemoryManager.WriteVector32);  break;
+                    case 3: name = nameof(MemoryManager.WriteVector64);  break;
+                    case 4: name = nameof(MemoryManager.WriteVector128); break;
+                }
+            }
+            else
+            {
+                switch (size)
+                {
+                    case 0: name = nameof(MemoryManager.WriteByte);   break;
+                    case 1: name = nameof(MemoryManager.WriteUInt16); break;
+                    case 2: name = nameof(MemoryManager.WriteUInt32); break;
+                    case 3: name = nameof(MemoryManager.WriteUInt64); break;
+                }
+            }
+
+            context.EmitCall(typeof(MemoryManager), name);
+        }
+
+        private static bool GetIsSimd(ILEmitterCtx context)
+        {
+            return context.CurrOp is IOpCodeSimd64 &&
+                 !(context.CurrOp is OpCodeSimdMemMs64 ||
+                   context.CurrOp is OpCodeSimdMemSs64);
+        }
+    }
+}
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