Diamond75/Panda3DS
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wheremyfoodat 2023-10-24 22:10:40 +03:00 • committed by offtkp
parent 8502cd9285
commit f922870785
3 changed files with 13 additions and 16 deletions
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3
include/cheats.hpp
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@ -12,9 +12,8 @@ class Memory;
class Cheats { class Cheats {
public: public:
enum class CheatType { enum class CheatType {
None, None, // Cheat has been removed by the frontend or is invalid
ActionReplay, // CTRPF cheats ActionReplay, // CTRPF cheats
// TODO: Other cheat devices and standards?
}; };
struct Cheat { struct Cheat {

14
src/core/cheats.cpp
View file

@ -25,8 +25,8 @@ u32 Cheats::addCheat(const Cheat& cheat) {
void Cheats::removeCheat(u32 id) { void Cheats::removeCheat(u32 id) {
if (id >= cheats.size()) { if (id >= cheats.size()) {
return; return;
} }
// Not using std::erase because we don't want to invalidate cheat IDs // Not using std::erase because we don't want to invalidate cheat IDs
cheats[id].type = CheatType::None; cheats[id].type = CheatType::None;
@ -42,14 +42,14 @@ void Cheats::removeCheat(u32 id) {
void Cheats::enableCheat(u32 id) { void Cheats::enableCheat(u32 id) {
if (id < cheats.size()) { if (id < cheats.size()) {
cheats[id].enabled = true; cheats[id].enabled = true;
} }
} }
void Cheats::disableCheat(u32 id) { void Cheats::disableCheat(u32 id) {
if (id < cheats.size()) { if (id < cheats.size()) {
cheats[id].enabled = false; cheats[id].enabled = false;
} }
} }
void Cheats::clear() { void Cheats::clear() {
@ -67,7 +67,7 @@ void Cheats::run() {
break; break;
} }
case CheatType::None: break; case CheatType::None: break;
default: Helpers::panic("Unknown cheat device!"); default: Helpers::panic("Unknown cheat device!");
} }
} }

12
src/hydra_core.cpp
View file

@ -135,20 +135,18 @@ void HydraCore::setCheckButtonCallback(s32 (*callback)(u32 player, hydra::Button
u32 HydraCore::addCheat(const u8* data, u32 size) { u32 HydraCore::addCheat(const u8* data, u32 size) {
// Every 3DS cheat is a multiple of 64 bits == 8 bytes // Every 3DS cheat is a multiple of 64 bits == 8 bytes
if ((size % 8) != 0) { if ((size % 8) != 0) {
return hydra::BAD_CHEAT; return hydra::BAD_CHEAT;
} }
Cheats::Cheat cheat; Cheats::Cheat cheat;
cheat.enabled = true; cheat.enabled = true;
cheat.type = Cheats::CheatType::ActionReplay; cheat.type = Cheats::CheatType::ActionReplay;
for (u32 i = 0; i < size; i += 8) { for (u32 i = 0; i < size; i += 8) {
auto read32 = [](const u8* ptr) { auto read32 = [](const u8* ptr) { return (u32(ptr[3]) << 24) | (u32(ptr[2]) << 16) | (u32(ptr[1]) << 8) | u32(ptr[0]); };
return (u32(ptr[3]) << 24) | (u32(ptr[2]) << 16) | (u32(ptr[1]) << 8) | u32(ptr[0]);
};
// Data is passed to us in big endian so we bswap // Data is passed to us in big endian so we bswap
u32 firstWord = Common::swap32(read32(data + i)); u32 firstWord = Common::swap32(read32(data + i));
u32 secondWord = Common::swap32(read32(data + i + 4)); u32 secondWord = Common::swap32(read32(data + i + 4));
cheat.instructions.insert(cheat.instructions.end(), {firstWord, secondWord}); cheat.instructions.insert(cheat.instructions.end(), {firstWord, secondWord});