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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
This commit is contained in:
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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33
Ryujinx.HLE/HOS/Tamper/CodeEmitters/SaveOrRestoreRegisterWithMask.cs Normal file
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namespace Ryujinx.HLE.HOS.Tamper.CodeEmitters
{
/// <summary>
/// Code type 0xC2 performs saving or restoring of multiple registers using a bitmask.
/// NOTE: Registers are saved and restored to a different set of registers than the ones used
/// for the other opcodes (Save Registers).
/// </summary>
class SaveOrRestoreRegisterWithMask
{
private const int OperationTypeIndex = 2;
private const int RegisterMaskIndex = 4;
private const int RegisterMaskSize = 4;
public static void Emit(byte[] instruction, CompilationContext context)
{
// C2x0XXXX
// x: Operand Type, see below.
// X: 16-bit bitmask, bit i == save or restore register i.
byte operationType = instruction[OperationTypeIndex];
ulong mask = InstructionHelper.GetImmediate(instruction, RegisterMaskIndex, RegisterMaskSize);
for (byte regIndex = 0; mask != 0; mask >>= 1, regIndex++)
{
if ((mask & 0x1) != 0)
{
SaveOrRestoreRegister.Impl(operationType, regIndex, regIndex, context);
}
}
}
}
}