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Add the TamperMachine module for runtime mods and cheats (#1928)

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* Add initial implementation of the Tamper Machine

* Implement Atmosphere opcodes 0, 4 and 9

* Add missing TamperCompilationException class

* Implement Atmosphere conditional and loop opcodes 1, 2 and 3

* Inplement input conditional opcode 8

* Add register store opcode A

* Implement extended pause/resume opcodes FF0 and FF1

* Implement extended log opcode FFF

* Implement extended register conditional opcode C0

* Refactor TamperProgram to an interface

* Moved Atmosphere classes to a separate subdirectory

* Fix OpProcCtrl class not setting process

* Implement extended register save/restore opcodes C1, C2 and C3

* Refactor code emitters to separate classes

* Supress memory access errors from the Tamper Machine

* Add debug information to tamper register and memory writes

* Add block stack check to Atmosphere Cheat compiler

* Add handheld input support to Tamper Machine

* Fix code styling

* Fix build id and cheat case mismatch

* Fix invalid immediate size selection

* Print build ids of the title

* Prevent Tamper Machine from change code regions

* Remove Atmosphere namespace

* Remove empty cheats from the list

* Prevent code modification without disabling the tampering

* Fix missing addressing mode in LoadRegisterWithMemory

* Fix wrong addressing in RegisterConditional

* Add name to the tamper machine thread

* Fix code styling
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Caian Benedicto 2021-03-27 11:12:05 -03:00 • committed by GitHub
parent a5d5ca0635
commit 0c1ea1212a
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71 changed files with 2793 additions and 5 deletions
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Ryujinx.HLE/HOS/Tamper/CodeEmitters/SaveOrRestoreRegister.cs Normal file
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using Ryujinx.HLE.Exceptions;
using Ryujinx.HLE.HOS.Tamper.Operations;
namespace Ryujinx.HLE.HOS.Tamper.CodeEmitters
{
/// <summary>
/// Code type 0xC1 performs saving or restoring of registers.
/// NOTE: Registers are saved and restored to a different set of registers than the ones used
/// for the other opcodes (Save Registers).
/// </summary>
class SaveOrRestoreRegister
{
private const int DestinationRegisterIndex = 3;
private const int SourceRegisterIndex = 5;
private const int OperationTypeIndex = 6;
private const int RestoreRegister = 0;
private const int SaveRegister = 1;
private const int ClearSavedValue = 2;
private const int ClearRegister = 3;
public static void Emit(byte[] instruction, CompilationContext context)
{
// C10D0Sx0
// D: Destination index.
// S: Source index.
// x: Operand Type, see below.
byte destinationRegIndex = instruction[DestinationRegisterIndex];
byte sourceRegIndex = instruction[SourceRegisterIndex];
byte operationType = instruction[OperationTypeIndex];
Impl(operationType, destinationRegIndex, sourceRegIndex, context);
}
public static void Impl(byte operationType, byte destinationRegIndex, byte sourceRegIndex, CompilationContext context)
{
IOperand destinationOperand;
IOperand sourceOperand;
switch (operationType)
{
case RestoreRegister:
destinationOperand = context.GetRegister(destinationRegIndex);
sourceOperand = context.GetSavedRegister(sourceRegIndex);
break;
case SaveRegister:
destinationOperand = context.GetSavedRegister(destinationRegIndex);
sourceOperand = context.GetRegister(sourceRegIndex);
break;
case ClearSavedValue:
destinationOperand = new Value<ulong>(0);
sourceOperand = context.GetSavedRegister(sourceRegIndex);
break;
case ClearRegister:
destinationOperand = new Value<ulong>(0);
sourceOperand = context.GetRegister(sourceRegIndex);
break;
default:
throw new TamperCompilationException($"Invalid register operation type {operationType} in Atmosphere cheat");
}
context.CurrentOperations.Add(new OpMov<ulong>(destinationOperand, sourceOperand));
}
}
}