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75 lines
2.4 KiB
C#
75 lines
2.4 KiB
C#
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using ChocolArm64.State;
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using System.Reflection.Emit;
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namespace ChocolArm64.Translation
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{
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struct IlOpCodeStore : IILEmit
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{
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public int Index { get; private set; }
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public IoType IoType { get; private set; }
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public RegisterSize RegisterSize { get; private set; }
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public IlOpCodeStore(int index, IoType ioType, RegisterSize registerSize = 0)
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{
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Index = index;
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IoType = ioType;
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RegisterSize = registerSize;
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}
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public void Emit(ILEmitter context)
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{
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switch (IoType)
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{
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case IoType.Arg: context.Generator.EmitStarg(Index); break;
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case IoType.Fields:
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{
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long intOutputs = context.LocalAlloc.GetIntOutputs(context.GetIlBlock(Index));
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long vecOutputs = context.LocalAlloc.GetVecOutputs(context.GetIlBlock(Index));
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StoreLocals(context, intOutputs, RegisterType.Int);
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StoreLocals(context, vecOutputs, RegisterType.Vector);
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break;
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}
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case IoType.Flag: EmitStloc(context, Index, RegisterType.Flag); break;
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case IoType.Int: EmitStloc(context, Index, RegisterType.Int); break;
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case IoType.Vector: EmitStloc(context, Index, RegisterType.Vector); break;
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}
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}
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private void StoreLocals(ILEmitter context, long outputs, RegisterType baseType)
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{
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for (int bit = 0; bit < 64; bit++)
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{
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long mask = 1L << bit;
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if ((outputs & mask) != 0)
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{
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Register reg = ILEmitter.GetRegFromBit(bit, baseType);
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context.Generator.EmitLdarg(TranslatedSub.StateArgIdx);
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context.Generator.EmitLdloc(context.GetLocalIndex(reg));
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context.Generator.Emit(OpCodes.Stfld, reg.GetField());
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}
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}
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}
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private void EmitStloc(ILEmitter context, int index, RegisterType registerType)
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{
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Register reg = new Register(index, registerType);
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if (registerType == RegisterType.Int &&
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RegisterSize == RegisterSize.Int32)
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{
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context.Generator.Emit(OpCodes.Conv_U8);
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}
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context.Generator.EmitStloc(context.GetLocalIndex(reg));
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}
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}
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}
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