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using Ryujinx.Common.Logging;
using Ryujinx.HLE.Exceptions;
using Ryujinx.HLE.HOS.Tamper.CodeEmitters;
using Ryujinx.HLE.HOS.Tamper.Operations;
using System;
using System.Collections.Generic;
namespace Ryujinx.HLE.HOS.Tamper
{
class AtmosphereCompiler
{
private ulong _exeAddress;
private ulong _heapAddress;
private ulong _aliasAddress;
private ulong _aslrAddress;
private ITamperedProcess _process;
public AtmosphereCompiler(ulong exeAddress, ulong heapAddress, ulong aliasAddress, ulong aslrAddress, ITamperedProcess process)
{
_exeAddress = exeAddress;
_heapAddress = heapAddress;
_aliasAddress = aliasAddress;
_aslrAddress = aslrAddress;
_process = process;
}
public ITamperProgram Compile(string name, IEnumerable<string> rawInstructions)
{
string[] addresses = new string[]
{
$" Executable address: 0x{_exeAddress:X16}",
$" Heap address : 0x{_heapAddress:X16}",
$" Alias address : 0x{_aliasAddress:X16}",
$" Aslr address : 0x{_aslrAddress:X16}"
};
Logger.Debug?.Print(LogClass.TamperMachine, $"Compiling Atmosphere cheat {name}...\n{string.Join('\n', addresses)}");
try
{
return CompileImpl(name, rawInstructions);
}
catch(TamperCompilationException exception)
{
// Just print the message without the stack trace.
Logger.Error?.Print(LogClass.TamperMachine, exception.Message);
}
catch (Exception exception)
{
Logger.Error?.Print(LogClass.TamperMachine, exception.ToString());
}
Logger.Error?.Print(LogClass.TamperMachine, "There was a problem while compiling the Atmosphere cheat");
return null;
}
private ITamperProgram CompileImpl(string name, IEnumerable<string> rawInstructions)
{
CompilationContext context = new CompilationContext(_exeAddress, _heapAddress, _aliasAddress, _aslrAddress, _process);
context.BlockStack.Push(new OperationBlock(null));
// Parse the instructions.
foreach (string rawInstruction in rawInstructions)
{
Logger.Debug?.Print(LogClass.TamperMachine, $"Compiling instruction {rawInstruction}");
byte[] instruction = InstructionHelper.ParseRawInstruction(rawInstruction);
CodeType codeType = InstructionHelper.GetCodeType(instruction);
switch (codeType)
{
case CodeType.StoreConstantToAddress:
StoreConstantToAddress.Emit(instruction, context);
break;
case CodeType.BeginMemoryConditionalBlock:
BeginConditionalBlock.Emit(instruction, context);
break;
case CodeType.EndConditionalBlock:
EndConditionalBlock.Emit(instruction, context);
break;
case CodeType.StartEndLoop:
StartEndLoop.Emit(instruction, context);
break;
case CodeType.LoadRegisterWithContant:
LoadRegisterWithConstant.Emit(instruction, context);
break;
case CodeType.LoadRegisterWithMemory:
LoadRegisterWithMemory.Emit(instruction, context);
break;
case CodeType.StoreConstantToMemory:
StoreConstantToMemory.Emit(instruction, context);
break;
case CodeType.LegacyArithmetic:
LegacyArithmetic.Emit(instruction, context);
break;
case CodeType.BeginKeypressConditionalBlock:
BeginConditionalBlock.Emit(instruction, context);
break;
case CodeType.Arithmetic:
Arithmetic.Emit(instruction, context);
break;
case CodeType.StoreRegisterToMemory:
StoreRegisterToMemory.Emit(instruction, context);
break;
case CodeType.BeginRegisterConditionalBlock:
BeginConditionalBlock.Emit(instruction, context);
break;
case CodeType.SaveOrRestoreRegister:
SaveOrRestoreRegister.Emit(instruction, context);
break;
case CodeType.SaveOrRestoreRegisterWithMask:
SaveOrRestoreRegisterWithMask.Emit(instruction, context);
break;
case CodeType.ReadOrWriteStaticRegister:
ReadOrWriteStaticRegister.Emit(instruction, context);
break;
case CodeType.PauseProcess:
PauseProcess.Emit(instruction, context);
break;
case CodeType.ResumeProcess:
ResumeProcess.Emit(instruction, context);
break;
case CodeType.DebugLog:
DebugLog.Emit(instruction, context);
break;
default:
throw new TamperCompilationException($"Code type {codeType} not implemented in Atmosphere cheat");
}
}
// Initialize only the registers used.
Value<ulong> zero = new Value<ulong>(0UL);
int position = 0;
foreach (Register register in context.Registers.Values)
{
context.CurrentOperations.Insert(position, new OpMov<ulong>(register, zero));
position++;
}
if (context.BlockStack.Count != 1)
{
throw new TamperCompilationException($"Reached end of compilation with unmatched conditional(s) or loop(s)");
}
return new AtmosphereProgram(name, _process, context.PressedKeys, new Block(context.CurrentOperations));
}
}
}
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