mirror of
https://github.com/ryujinx-mirror/ryujinx.git
synced 2024-12-05 08:17:25 +00:00
0c1ea1212a
* 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
57 lines
2.3 KiB
C#
57 lines
2.3 KiB
C#
using Ryujinx.HLE.Exceptions;
|
|
using Ryujinx.HLE.HOS.Tamper.Operations;
|
|
using System;
|
|
|
|
namespace Ryujinx.HLE.HOS.Tamper.CodeEmitters
|
|
{
|
|
/// <summary>
|
|
/// Code type 7 allows performing arithmetic on registers. However, it has been deprecated by Code
|
|
/// type 9, and is only kept for backwards compatibility.
|
|
/// </summary>
|
|
class LegacyArithmetic
|
|
{
|
|
const int OperationWidthIndex = 1;
|
|
const int DestinationRegisterIndex = 3;
|
|
const int OperationTypeIndex = 4;
|
|
const int ValueImmediateIndex = 8;
|
|
|
|
const int ValueImmediateSize = 8;
|
|
|
|
private const byte Add = 0; // reg += rhs
|
|
private const byte Sub = 1; // reg -= rhs
|
|
private const byte Mul = 2; // reg *= rhs
|
|
private const byte Lsh = 3; // reg <<= rhs
|
|
private const byte Rsh = 4; // reg >>= rhs
|
|
|
|
public static void Emit(byte[] instruction, CompilationContext context)
|
|
{
|
|
// 7T0RC000 VVVVVVVV
|
|
// T: Width of arithmetic operation(1, 2, 4, or 8 bytes).
|
|
// R: Register to apply arithmetic to.
|
|
// C: Arithmetic operation to apply, see below.
|
|
// V: Value to use for arithmetic operation.
|
|
|
|
byte operationWidth = instruction[OperationWidthIndex];
|
|
Register register = context.GetRegister(instruction[DestinationRegisterIndex]);
|
|
byte operation = instruction[OperationTypeIndex];
|
|
ulong immediate = InstructionHelper.GetImmediate(instruction, ValueImmediateIndex, ValueImmediateSize);
|
|
Value<ulong> rightHandSideValue = new Value<ulong>(immediate);
|
|
|
|
void Emit(Type operationType)
|
|
{
|
|
InstructionHelper.Emit(operationType, operationWidth, context, register, register, rightHandSideValue);
|
|
}
|
|
|
|
switch (operation)
|
|
{
|
|
case Add: Emit(typeof(OpAdd<>)); break;
|
|
case Sub: Emit(typeof(OpSub<>)); break;
|
|
case Mul: Emit(typeof(OpMul<>)); break;
|
|
case Lsh: Emit(typeof(OpLsh<>)); break;
|
|
case Rsh: Emit(typeof(OpRsh<>)); break;
|
|
default:
|
|
throw new TamperCompilationException($"Invalid arithmetic operation {operation} in Atmosphere cheat");
|
|
}
|
|
}
|
|
}
|
|
}
|