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* Remove ARM32 interpreter and add ARM32 support on the translator * Nits. * Rename Cond -> Condition * Align code again * Rename Data to Alu * Enable ARM32 support and handle undefined instructions * Use the IsThumb method to check if its a thumb opcode * Remove another 32-bits check
120 lines
No EOL
3.6 KiB
C#
120 lines
No EOL
3.6 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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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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ExecuteSubroutine(thread.ThreadState, thread.Memory, position);
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}
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private void ExecuteSubroutine(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(memory, position, state.GetExecutionMode());
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}
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if (sub.ShouldReJit())
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{
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TranslateTier1(memory, position, state.GetExecutionMode());
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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(MemoryManager memory, long position, ExecutionMode mode)
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{
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Block block = Decoder.DecodeBasicBlock(memory, position, mode);
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ILEmitterCtx context = new ILEmitterCtx(_cache, block);
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string subName = GetSubroutineName(position);
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ILMethodBuilder ilMthdBuilder = new ILMethodBuilder(context.GetILBlocks(), subName);
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TranslatedSub subroutine = ilMthdBuilder.GetSubroutine();
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subroutine.SetType(TranslatedSubType.SubTier0);
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_cache.AddOrUpdate(position, subroutine, block.OpCodes.Count);
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return subroutine;
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}
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private void TranslateTier1(MemoryManager memory, long position, ExecutionMode mode)
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{
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Block graph = Decoder.DecodeSubroutine(_cache, memory, position, mode);
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ILEmitterCtx context = new ILEmitterCtx(_cache, graph);
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ILBlock[] ilBlocks = context.GetILBlocks();
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string subName = GetSubroutineName(position);
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ILMethodBuilder ilMthdBuilder = new ILMethodBuilder(ilBlocks, subName);
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TranslatedSub subroutine = ilMthdBuilder.GetSubroutine();
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subroutine.SetType(TranslatedSubType.SubTier1);
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int ilOpCount = 0;
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foreach (ILBlock ilBlock in ilBlocks)
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{
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ilOpCount += ilBlock.Count;
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}
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_cache.AddOrUpdate(position, subroutine, ilOpCount);
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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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}
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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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}
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} |