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Further work on implementing support for cheats

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This commit is contained in:
Gericom
2026-02-21 19:30:03 +01:00
parent 3300c5277c
commit 83046e2cc2
11 changed files with 286 additions and 15 deletions
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6
arm7/source/loader/NdsLoader.cpp
View File

@@ -522,7 +522,13 @@ void NdsLoader::HandleHomebrewPatching()
void NdsLoader::ApplyArm7Patches()
{
sendToArm9(IPC_COMMAND_ARM9_APPLY_ARM7_PATCHES);
sendToArm9(_cheats ? _cheats->length : 0);
void* patchSpaceStart = (void*)receiveFromArm9();
void* cheatsPtr = (void*)receiveFromArm9();
if (cheatsPtr != nullptr && _cheats != nullptr)
{
memcpy(cheatsPtr, _cheats, _cheats->length);
}
if (patchSpaceStart)
{
u32 mbk6 = 0;

8
arm7/source/loader/NdsLoader.h
View File

@@ -42,6 +42,13 @@ public:
_argumentsLength = argumentsLength;
}
/// @brief Sets the cheats to apply to the rom.
/// @param cheats The cheats.
void SetCheats(const pload_cheats_t* cheats)
{
_cheats = cheats;
}
/// @brief Loads the rom according to the specified \p bootMode.
/// @param bootMode The boot mode.
void Load(BootMode bootMode);
@@ -53,6 +60,7 @@ private:
const TCHAR* _launcherPath = nullptr;
u32 _argumentsLength = 0;
const char* _arguments = nullptr;
const pload_cheats_t* _cheats = nullptr;
nds_header_twl_t _romHeader;
DsiWareSaveResult _dsiwareSaveResult;

9
arm7/source/main.cpp
View File

@@ -219,10 +219,19 @@ extern "C" void loaderMain()
}
else
{
pload_cheats_t* cheats = nullptr;
if (gLoaderHeader.v3.cheats != nullptr && gLoaderHeader.v3.cheats->numberOfCheats != 0)
{
// Copy cheats to vram
cheats = (pload_cheats_t*)malloc(gLoaderHeader.v3.cheats->length);
memcpy(cheats, gLoaderHeader.v3.cheats, gLoaderHeader.v3.cheats->length);
}
sLoader.SetRomPath(gLoaderHeader.loadParams.romPath);
handleSavePath();
sLoader.SetArguments(gLoaderHeader.loadParams.arguments, gLoaderHeader.loadParams.argumentsLength);
sLoader.SetLauncherPath(gLoaderHeader.v2.launcherPath);
sLoader.SetCheats(cheats);
sLoader.Load(BootMode::Normal);
}