mirror of
https://github.com/Ryujinx/Ryujinx.git
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* 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
165 lines
4.8 KiB
C#
165 lines
4.8 KiB
C#
using ChocolArm64.Decoders;
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using ChocolArm64.Events;
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using ChocolArm64.Memory;
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using ChocolArm64.State;
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using ChocolArm64.Translation;
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using System;
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using System.Reflection.Emit;
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namespace ChocolArm64
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{
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public class Translator
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{
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private TranslatorCache _cache;
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public event EventHandler<CpuTraceEventArgs> CpuTrace;
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public bool EnableCpuTrace { get; set; }
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public Translator()
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{
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_cache = new TranslatorCache();
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}
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internal void ExecuteSubroutine(CpuThread thread, long position)
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{
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//TODO: Both the execute A32/A64 methods should be merged on the future,
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//when both ISAs are implemented with the interpreter and JIT.
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//As of now, A32 only has a interpreter and A64 a JIT.
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CpuThreadState state = thread.ThreadState;
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MemoryManager memory = thread.Memory;
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if (state.ExecutionMode == ExecutionMode.AArch32)
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{
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ExecuteSubroutineA32(state, memory);
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}
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else
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{
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ExecuteSubroutineA64(state, memory, position);
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}
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}
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private void ExecuteSubroutineA32(CpuThreadState state, MemoryManager memory)
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{
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do
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{
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OpCode64 opCode = Decoder.DecodeOpCode(state, memory, state.R15);
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opCode.Interpreter(state, memory, opCode);
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}
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while (state.R15 != 0 && state.Running);
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}
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private void ExecuteSubroutineA64(CpuThreadState state, MemoryManager memory, long position)
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{
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do
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{
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if (EnableCpuTrace)
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{
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CpuTrace?.Invoke(this, new CpuTraceEventArgs(position));
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}
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if (!_cache.TryGetSubroutine(position, out TranslatedSub sub))
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{
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sub = TranslateTier0(state, memory, position);
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}
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if (sub.ShouldReJit())
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{
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TranslateTier1(state, memory, position);
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}
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position = sub.Execute(state, memory);
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}
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while (position != 0 && state.Running);
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}
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internal bool HasCachedSub(long position)
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{
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return _cache.HasSubroutine(position);
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}
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private TranslatedSub TranslateTier0(CpuThreadState state, MemoryManager memory, long position)
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{
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Block block = Decoder.DecodeBasicBlock(state, memory, position);
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Block[] graph = new Block[] { block };
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string subName = GetSubroutineName(position);
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ILEmitterCtx context = new ILEmitterCtx(_cache, graph, block, subName);
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do
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{
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context.EmitOpCode();
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}
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while (context.AdvanceOpCode());
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TranslatedSub subroutine = context.GetSubroutine();
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subroutine.SetType(TranslatedSubType.SubTier0);
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_cache.AddOrUpdate(position, subroutine, block.OpCodes.Count);
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OpCode64 lastOp = block.GetLastOp();
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return subroutine;
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}
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private void TranslateTier1(CpuThreadState state, MemoryManager memory, long position)
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{
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(Block[] graph, Block root) = Decoder.DecodeSubroutine(_cache, state, memory, position);
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string subName = GetSubroutineName(position);
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ILEmitterCtx context = new ILEmitterCtx(_cache, graph, root, subName);
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if (context.CurrBlock.Position != position)
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{
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context.Emit(OpCodes.Br, context.GetLabel(position));
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}
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do
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{
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context.EmitOpCode();
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}
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while (context.AdvanceOpCode());
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//Mark all methods that calls this method for ReJiting,
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//since we can now call it directly which is faster.
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if (_cache.TryGetSubroutine(position, out TranslatedSub oldSub))
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{
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foreach (long callerPos in oldSub.GetCallerPositions())
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{
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if (_cache.TryGetSubroutine(position, out TranslatedSub callerSub))
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{
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callerSub.MarkForReJit();
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}
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}
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}
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TranslatedSub subroutine = context.GetSubroutine();
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subroutine.SetType(TranslatedSubType.SubTier1);
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_cache.AddOrUpdate(position, subroutine, GetGraphInstCount(graph));
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}
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private string GetSubroutineName(long position)
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{
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return $"Sub{position:x16}";
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}
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private int GetGraphInstCount(Block[] graph)
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{
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int size = 0;
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foreach (Block block in graph)
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{
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size += block.OpCodes.Count;
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}
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return size;
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}
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}
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} |