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51 lines
2.0 KiB
C#
51 lines
2.0 KiB
C#
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using Ryujinx.HLE.Exceptions;
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using Ryujinx.HLE.HOS.Tamper.Conditions;
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using Ryujinx.HLE.HOS.Tamper.Operations;
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using System.Collections.Generic;
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namespace Ryujinx.HLE.HOS.Tamper.CodeEmitters
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{
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/// <summary>
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/// Code type 2 marks the end of a conditional block (started by Code Type 1, Code Type 8 or Code Type C0).
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/// </summary>
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class EndConditionalBlock
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{
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public static void Emit(byte[] instruction, CompilationContext context)
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{
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// 20000000
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// Use the conditional begin instruction stored in the stack.
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instruction = context.CurrentBlock.BaseInstruction;
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CodeType codeType = InstructionHelper.GetCodeType(instruction);
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// Pop the current block of operations from the stack so control instructions
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// for the conditional can be emitted in the upper block.
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IEnumerable<IOperation> operations = context.CurrentOperations;
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context.BlockStack.Pop();
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ICondition condition;
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switch (codeType)
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{
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case CodeType.BeginMemoryConditionalBlock:
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condition = MemoryConditional.Emit(instruction, context);
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break;
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case CodeType.BeginKeypressConditionalBlock:
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condition = KeyPressConditional.Emit(instruction, context);
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break;
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case CodeType.BeginRegisterConditionalBlock:
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condition = RegisterConditional.Emit(instruction, context);
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break;
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default:
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throw new TamperCompilationException($"Conditional end does not match code type {codeType} in Atmosphere cheat");
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}
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// Create a conditional block with the current operations and nest it in the upper
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// block of the stack.
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IfBlock block = new IfBlock(condition, operations);
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context.CurrentOperations.Add(block);
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}
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}
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}
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