mirror of
https://github.com/patchzyy/wiicompiled
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5 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| 53d8f71c68 | |||
| 149cfef608 | |||
| 25c69ae28e | |||
| 0bb15f0a44 | |||
| 466d06d7db |
@@ -1,6 +1,19 @@
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||||
<img width="4190" height="1232" alt="wiicomplogofinalfinalfinalev2MADEBY_INKWRECK_plzcredit" src="https://github.com/user-attachments/assets/df7a3f2e-5336-479a-b4c0-968dd578726d" />
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# WiiCompiled
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<p align="center">
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<a href="https://github.com/patchzyy/Wiicompiled/releases"><img alt="Windows 10 / 11, x64" src="https://img.shields.io/badge/Windows-10%20%2F%2011%20%C2%B7%20x64-0078D4"></a>
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<a href="https://github.com/patchzyy/Wiicompiled/releases"><img alt="Linux, x64 / ARM64" src="https://img.shields.io/badge/Linux-x64%20%2F%20ARM64-FCC624?logo=linux&logoColor=white"></a>
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<a href="https://github.com/patchzyy/Wiicompiled/releases"><img alt="macOS 14+, Apple Silicon" src="https://img.shields.io/badge/macOS-14%2B%20%C2%B7%20Apple%20Silicon-0A84FF?logo=apple&logoColor=white"></a>
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</p>
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<p align="center">
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<a href="#building-from-source"><img alt="PowerPC static recompilation" src="https://img.shields.io/badge/PowerPC-static%20recompilation-FF9F0A"></a>
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<a href="#retro-rewind"><img alt="Retro Rewind supported" src="https://img.shields.io/badge/Retro%20Rewind-supported-FF375F"></a>
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<a href="https://github.com/TeamWheelWizard/WheelWizard/releases"><img alt="Install with Wheel Wizard" src="https://img.shields.io/badge/install%20with-Wheel%20Wizard-8B5CF6"></a>
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<a href="LICENSE"><img alt="License: GPLv3" src="https://img.shields.io/badge/license-GPLv3-2EA44F?logo=gnu&logoColor=white"></a>
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</p>
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A native PC port of Mario Kart Wii, made with static recompilation.
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There's no emulator in the loop, no interpreter, no JIT, no PowerPC
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@@ -54,10 +67,24 @@ Press **F10** while the game window has focus:
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Everything you change is saved to `Config.toml` on the spot and restored next launch.
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**Real controller support.**
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Controllers are fed to the game as a GameCube controller.
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Mappings are positional (`south`, `east`, `west`, `north`) rather than Xbox-labelled, so the
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same config makes sense on Xbox, PlayStation, Nintendo and generic SDL pads alike, and extra
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inputs like paddles, touchpads and share buttons show up when the hardware reports them.
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Both button-binding slots also accept SDL triggers and stick directions. Selecting an analog
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input shows a threshold slider beneath it (1–100%, default 50%); reaching that amount of travel
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holds the chosen digital button. Each binding's threshold is saved independently in `Config.toml`
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(for example, `a = "right_trigger@35,south"`).
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**Keyboard and Mouse support.**
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Keyboard and mouse are also available through **F10 > Controller settings > Keyboard and mouse**
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for each port. Enabling this replaces that port's gamepad input. The default preset uses WASD
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for the main stick, left mouse for A (accelerate), Space for B (brake), right mouse for R
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(drift), middle mouse for Z (item), arrow keys for the D-pad (tricks), and Enter for Start.
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Keys and mouse buttons can be remapped, including both sticks and triggers; mouse movement
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is not used. These settings are saved in `keyboard_bindings.dat` and restored next launch.
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**Dolphin-compatible input expressions.**
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Each GameCube control can carry an expression in Dolphin's input syntax, with the same operators
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@@ -201,7 +228,7 @@ AI coding tools were used during development of this project.
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All translated output is verified against real hardware behavior and most importantly, physics accuracy is proven synced across Wii, Dolphin, and WiiCompiled (see FAQ).
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## Credits
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- **inkwreck** - making the logo
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- **[aurora](https://github.com/encounter/aurora)** - the GX rendering/windowing backend this
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project's whole graphics layer sits on. MIT licensed.
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- **[Dawn](https://dawn.googlesource.com/dawn)** - Google's WebGPU implementation, powering
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@@ -171,6 +171,22 @@ typedef struct PADButtonMapping {
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PADButton padButton;
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} PADButtonMapping;
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// Explicitly disabled, unlike INVALID which permits default L/R trigger input.
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#define PAD_NATIVE_BUTTON_DISABLED 0xfffffffeu
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// Axis-to-button bindings share the persisted nativeButton field without
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// changing the binary layout of existing controller mapping files.
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constexpr u32 PADEncodeAxisButton(u32 axis, bool negative, u32 threshold = 50) {
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return 0x10000u | axis | (negative ? 0x80u : 0u) | (threshold << 8);
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}
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constexpr bool PADIsAxisButton(u32 binding) { return (binding & 0xffff0000u) == 0x10000u; }
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constexpr u32 PADAxisButtonThreshold(u32 binding) { return (binding >> 8) & 0xffu; }
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constexpr u32 PADAxisButtonAxis(u32 binding) { return binding & 0x7fu; }
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constexpr bool PADAxisButtonNegative(u32 binding) { return (binding & 0x80u) != 0; }
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constexpr u32 PADAxisButtonIdentity(u32 binding) {
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return PADIsAxisButton(binding) ? (binding & ~0xff00u) : binding;
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}
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typedef struct PADAxisMapping {
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PADSignedNativeAxis nativeAxis;
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s32 nativeButton;
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@@ -319,6 +319,18 @@ std::array<bool, PAD_CHANMAX> g_suppressLeftTrigger{};
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std::array<bool, PAD_CHANMAX> g_suppressRightTrigger{};
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bool is_mouse_scancode(const s32 scancode) { return scancode < PAD_KEY_INVALID; }
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bool is_native_binding_pressed(SDL_Gamepad* gamepad, u32 binding) {
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if (PADIsAxisButton(binding)) {
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const u32 axis = PADAxisButtonAxis(binding);
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const u32 threshold = PADAxisButtonThreshold(binding);
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if (axis >= SDL_GAMEPAD_AXIS_COUNT || threshold < 1 || threshold > 100) return false;
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int value = SDL_GetGamepadAxis(gamepad, static_cast<SDL_GamepadAxis>(axis));
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if (PADAxisButtonNegative(binding)) value = -value;
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return value > 0 && value * 100 >= static_cast<int>(threshold) * 32767;
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}
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return binding < SDL_GAMEPAD_BUTTON_COUNT &&
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SDL_GetGamepadButton(gamepad, static_cast<SDL_GamepadButton>(binding));
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}
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bool is_mouse_button_pressed(const s32 scancode) {
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const int32_t buttonNum = -(scancode + 1);
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if (buttonNum < 1 || buttonNum > 5) {
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@@ -724,10 +736,10 @@ u32 PADRead(PADStatus* status) {
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}
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status[i].err = PAD_ERR_NONE;
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if (g_keyboardBindings[i].m_mappingsSet) {
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if (g_keyboardBindings[i].m_mappingsSet && SDL_GetKeyboardFocus() != nullptr) {
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std::ranges::for_each(
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g_keyboardBindings[i].m_buttonMapping, [&kbState, &i, &status](const PADKeyButtonBinding& mapping) {
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if (mapping.scancode > PAD_KEY_INVALID && kbState[mapping.scancode]) {
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g_keyboardBindings[i].m_buttonMapping, [&kbState, &numKeys, &i, &status](const PADKeyButtonBinding& mapping) {
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if (mapping.scancode > PAD_KEY_INVALID && mapping.scancode < numKeys && kbState[mapping.scancode]) {
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status[i].button |= mapping.padButton;
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} else if (is_mouse_scancode(mapping.scancode) && is_mouse_button_pressed(mapping.scancode)) {
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status[i].button |= mapping.padButton;
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@@ -788,7 +800,7 @@ u32 PADRead(PADStatus* status) {
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status[i].triggerRight = static_cast<u8>(std::min(static_cast<int>(status[i].triggerRight) + tr, 255));
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}
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if (controller) {
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if (controller && !g_keyboardBindings[i].m_mappingsSet) {
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EnsureMappingLoaded(controller);
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// Wii U Pro Controller raw D-pad fallback. SDL's HIDAPI Wii driver posts
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@@ -835,7 +847,7 @@ u32 PADRead(PADStatus* status) {
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bool rightTriggerSet = false;
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std::ranges::for_each(controller->m_buttonMapping, [&controller, &i, &status, &leftTriggerSet,
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&rightTriggerSet](const auto& mapping) {
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if (SDL_GetGamepadButton(controller->m_controller, static_cast<SDL_GamepadButton>(mapping.nativeButton))) {
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if (is_native_binding_pressed(controller->m_controller, mapping.nativeButton)) {
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status[i].button |= mapping.padButton;
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}
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@@ -852,7 +864,7 @@ u32 PADRead(PADStatus* status) {
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if (mapping.nativeButton == PAD_NATIVE_BUTTON_INVALID) {
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return;
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}
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if (SDL_GetGamepadButton(controller->m_controller, static_cast<SDL_GamepadButton>(mapping.nativeButton))) {
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if (is_native_binding_pressed(controller->m_controller, mapping.nativeButton)) {
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status[i].button |= mapping.padButton;
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}
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@@ -946,6 +958,17 @@ u32 PADRead(PADStatus* status) {
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Sint16 tl = std::max(static_cast<Sint16>(0), _get_axis_value(controller, PAD_AXIS_TRIGGER_L));
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Sint16 tr = std::max(static_cast<Sint16>(0), _get_axis_value(controller, PAD_AXIS_TRIGGER_R));
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// Games can read either the digital L/R bits or their analog pressure.
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// An explicit button binding must drive both, otherwise the original
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// L2/R2 axis still activates L/R even when it was rebound to L1/R1.
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// Real GC pads retain independent analog travel and end-stop clicks.
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if (!(controller->m_isGameCube ||
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(SDL_GetGamepadType(controller->m_controller) == SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_PRO &&
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controller->m_pid == 0x2073))) {
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if (leftTriggerSet) tl = (status[i].button & PAD_TRIGGER_L) != 0 ? 32767 : 0;
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if (rightTriggerSet) tr = (status[i].button & PAD_TRIGGER_R) != 0 ? 32767 : 0;
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}
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if (controller->m_deadZones.emulateTriggers) {
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if (!leftTriggerSet && tl > controller->m_deadZones.leftTriggerActivationZone) {
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status[i].button |= PAD_TRIGGER_L;
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@@ -990,12 +1013,13 @@ void PADControlMotor(const u32 chan, const u32 cmd) {
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}
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if (controller->m_isGameCube) {
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if (cmd == PAD_MOTOR_STOP) {
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aurora::input::controller_rumble(instance, 0, 1, 0);
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if (cmd == PAD_MOTOR_STOP || cmd == PAD_MOTOR_STOP_HARD) {
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// Use an unambiguous motor-off request. The (0, 1) coast encoding
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// requires SDL's GameCube brake mode; other backends or an overridden
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// hint interpret it as rumble and can leave the controller vibrating.
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aurora::input::controller_rumble(instance, 0, 0, 0);
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} else if (cmd == PAD_MOTOR_RUMBLE) {
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aurora::input::controller_rumble(instance, 1, 1, 0);
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} else if (cmd == PAD_MOTOR_STOP_HARD) {
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aurora::input::controller_rumble(instance, 0, 0, 0);
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}
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} else {
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if (cmd == PAD_MOTOR_STOP) {
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@@ -1278,6 +1302,11 @@ BOOL PADSetKeyButtonBindings(const u32 port, PADKeyButtonBinding bindings[PAD_BU
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}
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PADKeyButtonBinding* PADGetKeyButtonBindings(const u32 port, u32* buttonCount) {
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PADInit();
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if (!g_keyboardBindingsLoaded) {
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g_keyboardBindingsLoaded = true;
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load_keyboard_bindings();
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}
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if (port >= PAD_MAX_CONTROLLERS || !g_keyboardBindings[port].m_mappingsSet) {
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return nullptr;
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}
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@@ -49,7 +49,7 @@ Due to legal requirements, no proprietary Nintendo assets or code are included i
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3. **Retro Rewind Distribution** *(Skip if only building WiiCompiled)*:
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- Download the [Retro Rewind](https://wiki.tockdom.com/wiki/Retro_Rewind) release package. You will need the `RetroRewind6` folder (which contains `Binaries/Code.pul`).
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4. **Retro-WFC Payload** *(Skip if only building WiiCompiled or building offline)*:
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- Required for online multiplayer on Retro Rewind. Downloaded during setup from `http://nas.play.rwfc.net/payload?g=RMCPD00`.
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- Required for online multiplayer on Retro Rewind. Downloaded during setup from `https://rwfc.net/api/wfc/payload?g=RMCPD00`.
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---
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@@ -320,7 +320,7 @@ Launcher/local-build-macos.command \
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```bash
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# 1. Download Retro-WFC payload into a staging directory:
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mkdir -p build/retro-wfc/binary
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curl -fsSL --retry 3 "http://nas.play.rwfc.net/payload?g=RMCPD00" \
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curl -fsSL --retry 3 "https://rwfc.net/api/wfc/payload?g=RMCPD00" \
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-o build/retro-wfc/binary/payload.RMCPD00.bin
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# 2. Run the automated build with the payload directory:
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@@ -48,8 +48,19 @@ struct NativeButtonItem {
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uint32_t nativeButton;
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};
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inline constexpr std::array<NativeButtonItem, SDL_GAMEPAD_BUTTON_COUNT + 1> kNativeButtons = {{
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{"unmapped", "Unmapped / analog trigger", PAD_NATIVE_BUTTON_INVALID},
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inline constexpr auto kNativeButtons = std::to_array<NativeButtonItem>({
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{"disabled", "Unmapped", PAD_NATIVE_BUTTON_DISABLED},
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{"left_trigger", "Left trigger (LT / L2)", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_LEFT_TRIGGER, false)},
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{"right_trigger", "Right trigger (RT / R2)", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, false)},
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{"left_stick_left", "Left stick left", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_LEFTX, true)},
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{"left_stick_right", "Left stick right", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_LEFTX, false)},
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{"left_stick_up", "Left stick up", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_LEFTY, true)},
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{"left_stick_down", "Left stick down", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_LEFTY, false)},
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{"right_stick_left", "Right stick left", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_RIGHTX, true)},
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{"right_stick_right", "Right stick right", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_RIGHTX, false)},
|
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{"right_stick_up", "Right stick up", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_RIGHTY, true)},
|
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{"right_stick_down", "Right stick down", PADEncodeAxisButton(SDL_GAMEPAD_AXIS_RIGHTY, false)},
|
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{"unmapped", "Default", PAD_NATIVE_BUTTON_INVALID},
|
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{"south", "South (A / Cross)", SDL_GAMEPAD_BUTTON_SOUTH},
|
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{"east", "East (B / Circle)", SDL_GAMEPAD_BUTTON_EAST},
|
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{"west", "West (X / Square)", SDL_GAMEPAD_BUTTON_WEST},
|
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@@ -76,7 +87,7 @@ inline constexpr std::array<NativeButtonItem, SDL_GAMEPAD_BUTTON_COUNT + 1> kNat
|
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{"misc4", "Misc 4 / GC R click", SDL_GAMEPAD_BUTTON_MISC4},
|
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{"misc5", "Misc 5", SDL_GAMEPAD_BUTTON_MISC5},
|
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{"misc6", "Misc 6", SDL_GAMEPAD_BUTTON_MISC6},
|
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}};
|
||||
});
|
||||
|
||||
inline std::string TrimToken(std::string_view token) {
|
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const size_t begin = token.find_first_not_of(" \t");
|
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@@ -88,7 +99,7 @@ inline std::string TrimToken(std::string_view token) {
|
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}
|
||||
|
||||
inline const NativeButtonItem* FindNativeButton(std::string_view configName) {
|
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const std::string name = TrimToken(configName);
|
||||
const std::string name = TrimToken(configName.substr(0, configName.find('@')));
|
||||
const auto it = std::find_if(kNativeButtons.begin(), kNativeButtons.end(),
|
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[&](const NativeButtonItem& item) { return name == item.configName; });
|
||||
return it == kNativeButtons.end() ? nullptr : &*it;
|
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@@ -97,8 +108,8 @@ inline const NativeButtonItem* FindNativeButton(std::string_view configName) {
|
||||
// Falls back to the "unmapped" entry so callers always have a label to draw.
|
||||
inline const NativeButtonItem& NativeButtonForValue(uint32_t nativeButton) {
|
||||
const auto it = std::find_if(kNativeButtons.begin(), kNativeButtons.end(),
|
||||
[&](const NativeButtonItem& item) { return nativeButton == item.nativeButton; });
|
||||
return it == kNativeButtons.end() ? kNativeButtons.front() : *it;
|
||||
[&](const NativeButtonItem& item) { return PADAxisButtonIdentity(nativeButton) == PADAxisButtonIdentity(item.nativeButton); });
|
||||
return it == kNativeButtons.end() ? *FindNativeButton("unmapped") : *it;
|
||||
}
|
||||
|
||||
inline const GameCubeButtonItem* FindGameCubeButton(std::string_view configKey) {
|
||||
|
||||
@@ -94,7 +94,12 @@ double ReadInput(SDL_Gamepad* gamepad, const std::string& name) {
|
||||
// Fall back to this project's own positional names, so a binding written
|
||||
// here does not have to use Dolphin vocabulary.
|
||||
if (const auto* native = ControllerNames::FindNativeButton(name)) {
|
||||
if (native->nativeButton != PAD_NATIVE_BUTTON_INVALID) {
|
||||
if (PADIsAxisButton(native->nativeButton)) {
|
||||
const auto axis = static_cast<SDL_GamepadAxis>(PADAxisButtonAxis(native->nativeButton));
|
||||
const double sign = PADAxisButtonNegative(native->nativeButton) ? -1.0 : 1.0;
|
||||
return std::clamp(SDL_GetGamepadAxis(gamepad, axis) / 32767.0 * sign, 0.0, 1.0);
|
||||
}
|
||||
if (native->nativeButton < SDL_GAMEPAD_BUTTON_COUNT) {
|
||||
return SDL_GetGamepadButton(gamepad, static_cast<SDL_GamepadButton>(native->nativeButton)) ? 1.0
|
||||
: 0.0;
|
||||
}
|
||||
|
||||
@@ -20,6 +20,7 @@
|
||||
#include <algorithm>
|
||||
#include <atomic>
|
||||
#include <cctype>
|
||||
#include <charconv>
|
||||
#include <chrono>
|
||||
#include <cmath>
|
||||
#include <cstdint>
|
||||
@@ -186,6 +187,18 @@ void LimitResolutionForFrameRate() {
|
||||
|
||||
using ControllerNames::FindNativeButton;
|
||||
|
||||
uint32_t ConfiguredNativeButton(const NativeButtonItem& item, const std::string& token) {
|
||||
if (!PADIsAxisButton(item.nativeButton)) return item.nativeButton;
|
||||
const size_t separator = token.find('@');
|
||||
if (separator == std::string::npos) return item.nativeButton;
|
||||
uint32_t threshold = 0;
|
||||
const char* end = token.data() + token.size();
|
||||
const auto parsed = std::from_chars(token.data() + separator + 1, end, threshold);
|
||||
if (parsed.ec != std::errc{} || parsed.ptr != end || threshold < 1 || threshold > 100)
|
||||
return item.nativeButton;
|
||||
return PADAxisButtonIdentity(item.nativeButton) | (threshold << 8);
|
||||
}
|
||||
|
||||
struct ControllerBindingPair {
|
||||
std::string primary;
|
||||
std::string secondary;
|
||||
@@ -204,6 +217,13 @@ ControllerBindingPair SplitControllerBinding(const std::string& value) {
|
||||
|
||||
using ControllerNames::NativeButtonForValue;
|
||||
|
||||
std::string NativeBindingConfig(uint32_t binding) {
|
||||
std::string value = NativeButtonForValue(binding).configName;
|
||||
if (PADIsAxisButton(binding)) value += '@' + std::to_string(PADAxisButtonThreshold(binding));
|
||||
return value;
|
||||
}
|
||||
|
||||
|
||||
void SetTopBarVisible(bool visible) {
|
||||
if (g_topBarVisible == visible) {
|
||||
return;
|
||||
@@ -242,7 +262,7 @@ void ApplyConfiguredMappings() {
|
||||
}
|
||||
const ControllerBindingPair binding = SplitControllerBinding(*configured);
|
||||
if (const NativeButtonItem* native = FindNativeButton(binding.primary)) {
|
||||
PADSetButtonMapping(port, PADButtonMapping{native->nativeButton, kControllerButtons[i].padButton});
|
||||
PADSetButtonMapping(port, PADButtonMapping{ConfiguredNativeButton(*native, binding.primary), kControllerButtons[i].padButton});
|
||||
} else {
|
||||
RT_LOG(RT_TAG_CONFIG) << "Unknown controller." << kControllerButtons[i].configKey
|
||||
<< " button '" << binding.primary << "'" << std::endl;
|
||||
@@ -250,7 +270,7 @@ void ApplyConfiguredMappings() {
|
||||
uint32_t altNative = PAD_NATIVE_BUTTON_INVALID;
|
||||
if (!binding.secondary.empty()) {
|
||||
if (const NativeButtonItem* native = FindNativeButton(binding.secondary)) {
|
||||
altNative = native->nativeButton;
|
||||
altNative = ConfiguredNativeButton(*native, binding.secondary);
|
||||
} else {
|
||||
RT_LOG(RT_TAG_CONFIG) << "Unknown controller." << kControllerButtons[i].configKey
|
||||
<< " secondary button '" << binding.secondary << "'" << std::endl;
|
||||
@@ -395,6 +415,219 @@ void DrawWiiRemoteSettings(uint32_t selectedGamePort) {
|
||||
ImGui::EndMenu();
|
||||
}
|
||||
|
||||
const char* KeyBindingName(int scancode) {
|
||||
switch (scancode) {
|
||||
case PAD_KEY_MOUSE_LEFT: return "Mouse left";
|
||||
case PAD_KEY_MOUSE_RIGHT: return "Mouse right";
|
||||
case PAD_KEY_MOUSE_MIDDLE: return "Mouse middle";
|
||||
case PAD_KEY_MOUSE_X1: return "Mouse side 1";
|
||||
case PAD_KEY_MOUSE_X2: return "Mouse side 2";
|
||||
case PAD_KEY_INVALID: return "Unmapped";
|
||||
default:
|
||||
return scancode >= 0 && scancode < SDL_SCANCODE_COUNT
|
||||
? SDL_GetScancodeName(static_cast<SDL_Scancode>(scancode)) : "Unknown";
|
||||
}
|
||||
}
|
||||
|
||||
enum class RebindKind { KeyboardButton, KeyboardAxis, Controller };
|
||||
struct RebindState {
|
||||
bool active = false;
|
||||
bool openPopup = false;
|
||||
RebindKind kind{};
|
||||
uint32_t port = 0;
|
||||
uint16_t target = 0;
|
||||
bool secondary = false;
|
||||
SDL_JoystickID instance = 0;
|
||||
Clock::time_point deadline{};
|
||||
std::string label;
|
||||
std::array<bool, SDL_SCANCODE_COUNT> keys{};
|
||||
uint32_t mouse = 0;
|
||||
std::array<bool, SDL_GAMEPAD_BUTTON_COUNT> buttons{};
|
||||
std::array<bool, SDL_GAMEPAD_AXIS_COUNT> axesReady{};
|
||||
} g_rebind;
|
||||
|
||||
void BeginRebind(RebindKind kind, uint16_t target, const char* label, bool secondary = false) {
|
||||
g_rebind = {};
|
||||
g_rebind.active = true;
|
||||
g_rebind.openPopup = true;
|
||||
g_rebind.kind = kind;
|
||||
g_rebind.port = static_cast<uint32_t>(g_controllerPort);
|
||||
g_rebind.target = target;
|
||||
g_rebind.secondary = secondary;
|
||||
g_rebind.label = label;
|
||||
g_rebind.deadline = Clock::now() + std::chrono::seconds(10);
|
||||
int count = 0;
|
||||
const bool* keys = SDL_GetKeyboardState(&count);
|
||||
std::copy_n(keys, std::min(count, static_cast<int>(g_rebind.keys.size())), g_rebind.keys.begin());
|
||||
g_rebind.mouse = SDL_GetMouseState(nullptr, nullptr);
|
||||
const int index = PADGetIndexForPort(g_rebind.port);
|
||||
if (kind == RebindKind::Controller && index >= 0) {
|
||||
if (auto* pad = PADGetSDLGamepadForIndex(index)) {
|
||||
g_rebind.instance = SDL_GetGamepadID(pad);
|
||||
for (int i = 0; i < SDL_GAMEPAD_BUTTON_COUNT; ++i)
|
||||
g_rebind.buttons[i] = SDL_GetGamepadButton(pad, static_cast<SDL_GamepadButton>(i));
|
||||
for (int i = 0; i < SDL_GAMEPAD_AXIS_COUNT; ++i)
|
||||
g_rebind.axesReady[i] = std::abs(static_cast<int>(SDL_GetGamepadAxis(pad, static_cast<SDL_GamepadAxis>(i)))) < 8000;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void CompleteRebind(uint32_t value) {
|
||||
const auto& capture = g_rebind;
|
||||
if (capture.kind == RebindKind::Controller) {
|
||||
const int index = PADGetIndexForPort(capture.port);
|
||||
auto* pad = index >= 0 ? PADGetSDLGamepadForIndex(index) : nullptr;
|
||||
if (pad == nullptr || SDL_GetGamepadID(pad) != capture.instance) {
|
||||
g_rebind.active = false;
|
||||
return;
|
||||
}
|
||||
if (capture.secondary) PADSetAltButtonMapping(capture.port, {value, capture.target});
|
||||
else PADSetButtonMapping(capture.port, {value, capture.target});
|
||||
uint32_t count = 0, altCount = 0;
|
||||
auto* primary = PADGetButtonMappings(capture.port, &count);
|
||||
auto* alternate = PADGetAltButtonMappings(capture.port, &altCount);
|
||||
uint32_t primaryValue = PAD_NATIVE_BUTTON_INVALID, alternateValue = PAD_NATIVE_BUTTON_INVALID;
|
||||
for (uint32_t i = 0; i < count; ++i)
|
||||
if (primary[i].padButton == capture.target) primaryValue = primary[i].nativeButton;
|
||||
for (uint32_t i = 0; i < altCount; ++i)
|
||||
if (alternate[i].padButton == capture.target) alternateValue = alternate[i].nativeButton;
|
||||
std::string config = NativeBindingConfig(primaryValue);
|
||||
if (alternateValue != PAD_NATIVE_BUTTON_INVALID) config += ',' + NativeBindingConfig(alternateValue);
|
||||
for (size_t i = 0; i < kControllerButtons.size(); ++i)
|
||||
if (kControllerButtons[i].padButton == capture.target) RuntimeConfigFile::SetControllerButton(i, config);
|
||||
} else if (capture.kind == RebindKind::KeyboardButton) {
|
||||
PADSetKeyButtonBinding(capture.port, {static_cast<int32_t>(value), capture.target});
|
||||
} else {
|
||||
PADSetKeyAxisBinding(capture.port, {static_cast<int32_t>(value), capture.target, 1});
|
||||
}
|
||||
PADSerializeMappings();
|
||||
g_rebind.active = false;
|
||||
}
|
||||
|
||||
void DrawRebindPrompt() {
|
||||
if (g_rebind.openPopup) {
|
||||
ImGui::OpenPopup("Rebind input");
|
||||
g_rebind.openPopup = false;
|
||||
}
|
||||
if (!ImGui::BeginPopupModal("Rebind input", &g_rebind.active, ImGuiWindowFlags_AlwaysAutoResize)) {
|
||||
g_rebind.active = false;
|
||||
return;
|
||||
}
|
||||
if (g_rebind.active) {
|
||||
ImGui::Text("Rebind: %s", g_rebind.label.c_str());
|
||||
ImGui::TextUnformatted(g_rebind.kind == RebindKind::Controller
|
||||
? "Press a controller button, pull a trigger, or move a stick."
|
||||
: "Press a keyboard key or click a mouse button.");
|
||||
ImGui::TextUnformatted("Release any held input first. Backspace or Delete clears the mapping.");
|
||||
ImGui::TextUnformatted("Escape can be bound. F10 is reserved for settings.");
|
||||
const float remaining = std::chrono::duration<float>(g_rebind.deadline - Clock::now()).count();
|
||||
ImGui::Text("Unmapped in %d seconds", std::max(0, static_cast<int>(std::ceil(remaining))));
|
||||
const bool clear = ImGui::Button("Clear mapping");
|
||||
ImGui::SameLine();
|
||||
if (ImGui::Button("Cancel")) g_rebind.active = false;
|
||||
// UI clicks must not become mouse bindings (buttons activate on release).
|
||||
const bool overControl = ImGui::IsAnyItemHovered();
|
||||
if (g_rebind.active && (clear || remaining <= 0.0f)) {
|
||||
CompleteRebind(g_rebind.kind == RebindKind::Controller ? PAD_NATIVE_BUTTON_DISABLED
|
||||
: static_cast<uint32_t>(PAD_KEY_INVALID));
|
||||
} else if (g_rebind.active && SDL_GetKeyboardFocus() != nullptr && g_rebind.kind != RebindKind::Controller) {
|
||||
int count = 0;
|
||||
const bool* keys = SDL_GetKeyboardState(&count);
|
||||
for (int i = 1; i < std::min(count, static_cast<int>(SDL_SCANCODE_COUNT)) && g_rebind.active; ++i) {
|
||||
if (keys[i] && !g_rebind.keys[i] && i != SDL_SCANCODE_F10) CompleteRebind(i);
|
||||
g_rebind.keys[i] = keys[i];
|
||||
}
|
||||
const uint32_t mouse = SDL_GetMouseState(nullptr, nullptr);
|
||||
for (int i = 1; i <= 5 && g_rebind.active; ++i)
|
||||
if (!overControl && (mouse & ~g_rebind.mouse & (1u << (i - 1))) != 0) CompleteRebind(static_cast<uint32_t>(-i - 1));
|
||||
g_rebind.mouse = mouse;
|
||||
} else if (g_rebind.active && SDL_GetKeyboardFocus() != nullptr && g_rebind.kind == RebindKind::Controller) {
|
||||
auto* pad = SDL_GetGamepadFromID(g_rebind.instance);
|
||||
if (pad != nullptr) {
|
||||
for (int i = 0; i < SDL_GAMEPAD_BUTTON_COUNT && g_rebind.active; ++i) {
|
||||
const bool pressed = SDL_GetGamepadButton(pad, static_cast<SDL_GamepadButton>(i));
|
||||
if (pressed && !g_rebind.buttons[i]) CompleteRebind(i);
|
||||
g_rebind.buttons[i] = pressed;
|
||||
}
|
||||
for (int i = 0; i < SDL_GAMEPAD_AXIS_COUNT && g_rebind.active; ++i) {
|
||||
const int value = SDL_GetGamepadAxis(pad, static_cast<SDL_GamepadAxis>(i));
|
||||
if (std::abs(value) < 8000) g_rebind.axesReady[i] = true;
|
||||
if (g_rebind.axesReady[i] && std::abs(value) >= 16384)
|
||||
CompleteRebind(PADEncodeAxisButton(i, value < 0));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (!g_rebind.active) ImGui::CloseCurrentPopup();
|
||||
ImGui::EndPopup();
|
||||
}
|
||||
|
||||
void DrawKeyBinding(const char* label, int scancode, RebindKind kind, uint16_t target) {
|
||||
const std::string caption = std::string(KeyBindingName(scancode)) + "##binding";
|
||||
if (ImGui::Button(caption.c_str(), ImVec2(220.0f, 0.0f))) BeginRebind(kind, target, label);
|
||||
ImGui::SameLine();
|
||||
ImGui::TextUnformatted(label);
|
||||
|
||||
}
|
||||
|
||||
bool DrawKeyboardSettings(uint32_t port) {
|
||||
uint32_t count = 0;
|
||||
auto* buttons = PADGetKeyButtonBindings(port, &count);
|
||||
bool enabled = buttons != nullptr;
|
||||
bool usePreset = false;
|
||||
if (ImGui::Checkbox("Keyboard and mouse", &enabled)) {
|
||||
PADSetKeyboardActive(port, enabled);
|
||||
PADSerializeMappings();
|
||||
buttons = PADGetKeyButtonBindings(port, &count);
|
||||
usePreset = enabled && std::all_of(buttons, buttons + count, [](const auto& binding) {
|
||||
return binding.scancode == PAD_KEY_INVALID;
|
||||
});
|
||||
}
|
||||
if (!enabled) return false;
|
||||
ImGui::TextDisabled("Replaces the gamepad on this port. F10 opens settings.");
|
||||
if (ImGui::Button("Use WASD + mouse preset") || usePreset) {
|
||||
const std::array<int, PAD_BUTTON_COUNT> keys = {
|
||||
PAD_KEY_MOUSE_LEFT, SDL_SCANCODE_SPACE, SDL_SCANCODE_E, SDL_SCANCODE_Q,
|
||||
SDL_SCANCODE_RETURN, PAD_KEY_MOUSE_MIDDLE, SDL_SCANCODE_LSHIFT, PAD_KEY_MOUSE_RIGHT,
|
||||
SDL_SCANCODE_UP, SDL_SCANCODE_DOWN, SDL_SCANCODE_LEFT, SDL_SCANCODE_RIGHT,
|
||||
};
|
||||
for (size_t i = 0; i < keys.size(); ++i)
|
||||
PADSetKeyButtonBinding(port, {keys[i], kControllerButtons[i].padButton});
|
||||
const std::array<int, PAD_AXIS_COUNT> axes = {
|
||||
SDL_SCANCODE_D, SDL_SCANCODE_A, SDL_SCANCODE_W, SDL_SCANCODE_S,
|
||||
SDL_SCANCODE_L, SDL_SCANCODE_J, SDL_SCANCODE_I, SDL_SCANCODE_K,
|
||||
SDL_SCANCODE_LSHIFT, PAD_KEY_MOUSE_RIGHT,
|
||||
};
|
||||
uint32_t axisCount = 0;
|
||||
auto* mappings = PADGetKeyAxisBindings(port, &axisCount);
|
||||
for (uint32_t i = 0; i < axisCount; ++i)
|
||||
PADSetKeyAxisBinding(port, {axes[i], mappings[i].padAxis, 1});
|
||||
PADSerializeMappings();
|
||||
}
|
||||
ImGui::SeparatorText("Button mapping");
|
||||
for (uint32_t i = 0; i < count; ++i) {
|
||||
int key = buttons[i].scancode;
|
||||
ImGui::PushID(static_cast<int>(i));
|
||||
ImGui::SetNextItemWidth(220.0f);
|
||||
DrawKeyBinding(PADGetButtonName(buttons[i].padButton), key, RebindKind::KeyboardButton, buttons[i].padButton);
|
||||
ImGui::PopID();
|
||||
}
|
||||
ImGui::SeparatorText("Stick and trigger mapping");
|
||||
uint32_t axisCount = 0;
|
||||
auto* axes = PADGetKeyAxisBindings(port, &axisCount);
|
||||
for (uint32_t i = 0; i < axisCount; ++i) {
|
||||
int key = axes[i].scancode;
|
||||
ImGui::PushID(static_cast<int>(count + i));
|
||||
const char* direction = PADGetAxisDirectionLabel(axes[i].padAxis);
|
||||
const std::string label = std::string(PADGetAxisName(axes[i].padAxis)) + " " +
|
||||
(direction != nullptr ? direction : "");
|
||||
ImGui::SetNextItemWidth(220.0f);
|
||||
DrawKeyBinding(label.c_str(), key, RebindKind::KeyboardAxis, axes[i].padAxis);
|
||||
ImGui::PopID();
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
// Controller settings menu: port selection, controller assignment and button mapping.
|
||||
int ExpressionResizeCallback(ImGuiInputTextCallbackData* data) {
|
||||
if (data->EventFlag == ImGuiInputTextFlags_CallbackResize) {
|
||||
@@ -501,6 +734,10 @@ void DrawControllerSettings() {
|
||||
|
||||
ImGui::Separator();
|
||||
const uint32_t selectedGamePort = static_cast<uint32_t>(g_controllerPort);
|
||||
if (DrawKeyboardSettings(selectedGamePort)) {
|
||||
return;
|
||||
}
|
||||
ImGui::Separator();
|
||||
const char* currentName = PADGetName(selectedGamePort);
|
||||
ImGui::Text("Assigned: %s", currentName != nullptr ? currentName : "None");
|
||||
if (ImGui::MenuItem("Unassign controller")) {
|
||||
@@ -542,10 +779,10 @@ void DrawControllerSettings() {
|
||||
PADGetAltButtonMappings(static_cast<uint32_t>(g_controllerPort), &altMappingCount);
|
||||
|
||||
const auto writeBinding = [](size_t index, uint32_t primaryNative, uint32_t altNative) {
|
||||
std::string value = NativeButtonForValue(primaryNative).configName;
|
||||
std::string value = NativeBindingConfig(primaryNative);
|
||||
if (altNative != PAD_NATIVE_BUTTON_INVALID) {
|
||||
value += ',';
|
||||
value += NativeButtonForValue(altNative).configName;
|
||||
value += NativeBindingConfig(altNative);
|
||||
}
|
||||
RuntimeConfigFile::SetControllerButton(index, value);
|
||||
};
|
||||
@@ -603,6 +840,11 @@ void DrawControllerSettings() {
|
||||
}
|
||||
|
||||
ImGui::SeparatorText("Button mapping");
|
||||
ImGui::TextDisabled("LT / L2 = left trigger. RT / R2 = right trigger.");
|
||||
ImGui::TextDisabled("LB / L1 = left shoulder. RB / R1 = right shoulder.");
|
||||
ImGui::TextDisabled("Click a binding, then press an input. No input for 10 seconds clears it.");
|
||||
const float bindingWidth = ImGui::CalcTextSize("Right shoulder (RB / R1)").x +
|
||||
ImGui::GetFrameHeight() + ImGui::GetStyle().FramePadding.x * 2.0f;
|
||||
for (size_t i = 0; i < kControllerButtons.size(); ++i) {
|
||||
auto mappingIt = std::find_if(mappings, mappings + mappingCount, [&](const PADButtonMapping& mapping) {
|
||||
return mapping.padButton == kControllerButtons[i].padButton;
|
||||
@@ -622,30 +864,40 @@ void DrawControllerSettings() {
|
||||
|
||||
const NativeButtonItem& current = NativeButtonForValue(mappingIt->nativeButton);
|
||||
ImGui::PushID(static_cast<int>(i));
|
||||
ImGui::SetNextItemWidth(190.0f);
|
||||
if (ImGui::BeginCombo("##primary", current.label)) {
|
||||
for (const auto& candidate : kNativeButtons) {
|
||||
const bool selected = candidate.nativeButton == mappingIt->nativeButton;
|
||||
if (ImGui::Selectable(candidate.label, selected)) {
|
||||
const uint32_t port = static_cast<uint32_t>(g_controllerPort);
|
||||
PADSetButtonMapping(port, PADButtonMapping{candidate.nativeButton, kControllerButtons[i].padButton});
|
||||
writeBinding(i, candidate.nativeButton,
|
||||
altIt != nullptr ? altIt->nativeButton : PAD_NATIVE_BUTTON_INVALID);
|
||||
PADSerializeMappings();
|
||||
mappings = PADGetButtonMappings(port, &mappingCount);
|
||||
}
|
||||
if (selected) {
|
||||
ImGui::SetItemDefaultFocus();
|
||||
}
|
||||
const auto drawThreshold = [&](PADButtonMapping* mapping, bool secondary) {
|
||||
if (!PADIsAxisButton(mapping->nativeButton)) return;
|
||||
int threshold = static_cast<int>(PADAxisButtonThreshold(mapping->nativeButton));
|
||||
ImGui::SetNextItemWidth(bindingWidth);
|
||||
if (ImGui::SliderInt(secondary ? "##altThreshold" : "##primaryThreshold", &threshold,
|
||||
1, 100, "Threshold: %d%%", ImGuiSliderFlags_AlwaysClamp)) {
|
||||
const PADButtonMapping updated = {
|
||||
PADAxisButtonIdentity(mapping->nativeButton) | (static_cast<uint32_t>(threshold) << 8),
|
||||
mapping->padButton,
|
||||
};
|
||||
if (secondary) PADSetAltButtonMapping(selectedGamePort, updated);
|
||||
else PADSetButtonMapping(selectedGamePort, updated);
|
||||
}
|
||||
ImGui::EndCombo();
|
||||
if (ImGui::IsItemDeactivatedAfterEdit()) {
|
||||
writeBinding(i, mappingIt->nativeButton,
|
||||
altIt != nullptr ? altIt->nativeButton : PAD_NATIVE_BUTTON_INVALID);
|
||||
PADSerializeMappings();
|
||||
}
|
||||
};
|
||||
ImGui::BeginGroup();
|
||||
ImGui::SetNextItemWidth(bindingWidth);
|
||||
const std::string primaryCaption = std::string(current.label) + "##primary";
|
||||
if (ImGui::Button(primaryCaption.c_str(), ImVec2(bindingWidth, 0.0f))) {
|
||||
BeginRebind(RebindKind::Controller, kControllerButtons[i].padButton, kControllerButtons[i].label);
|
||||
}
|
||||
drawThreshold(mappingIt, false);
|
||||
ImGui::EndGroup();
|
||||
if (altIt != nullptr) {
|
||||
const bool altBound = altIt->nativeButton != PAD_NATIVE_BUTTON_INVALID;
|
||||
if (!altBound && !altRowExpanded[i]) {
|
||||
ImGui::SameLine();
|
||||
if (ImGui::SmallButton("+")) {
|
||||
altRowExpanded[i] = true;
|
||||
BeginRebind(RebindKind::Controller, kControllerButtons[i].padButton, kControllerButtons[i].label, true);
|
||||
}
|
||||
if (ImGui::IsItemHovered()) {
|
||||
ImGui::SetTooltip("Add a second binding; pressing either one works");
|
||||
@@ -654,27 +906,15 @@ void DrawControllerSettings() {
|
||||
ImGui::SameLine();
|
||||
ImGui::TextUnformatted("or");
|
||||
ImGui::SameLine();
|
||||
ImGui::BeginGroup();
|
||||
const char* altLabel = altBound ? NativeButtonForValue(altIt->nativeButton).label : "None";
|
||||
ImGui::SetNextItemWidth(190.0f);
|
||||
if (ImGui::BeginCombo("##alt", altLabel)) {
|
||||
for (const auto& candidate : kNativeButtons) {
|
||||
const bool isNone = candidate.nativeButton == PAD_NATIVE_BUTTON_INVALID;
|
||||
const bool selected = candidate.nativeButton == altIt->nativeButton;
|
||||
if (ImGui::Selectable(isNone ? "None" : candidate.label, selected)) {
|
||||
const uint32_t port = static_cast<uint32_t>(g_controllerPort);
|
||||
PADSetAltButtonMapping(
|
||||
port, PADButtonMapping{candidate.nativeButton, kControllerButtons[i].padButton});
|
||||
writeBinding(i, mappingIt->nativeButton, candidate.nativeButton);
|
||||
if (isNone) {
|
||||
altRowExpanded[i] = false;
|
||||
}
|
||||
}
|
||||
if (selected) {
|
||||
ImGui::SetItemDefaultFocus();
|
||||
}
|
||||
}
|
||||
ImGui::EndCombo();
|
||||
ImGui::SetNextItemWidth(bindingWidth);
|
||||
const std::string altCaption = std::string(altLabel) + "##alt";
|
||||
if (ImGui::Button(altCaption.c_str(), ImVec2(bindingWidth, 0.0f))) {
|
||||
BeginRebind(RebindKind::Controller, kControllerButtons[i].padButton, kControllerButtons[i].label, true);
|
||||
}
|
||||
drawThreshold(altIt, true);
|
||||
ImGui::EndGroup();
|
||||
}
|
||||
}
|
||||
ImGui::SameLine();
|
||||
@@ -936,10 +1176,27 @@ void DrawStartupScreen() {
|
||||
}
|
||||
|
||||
void DrawTopBar() {
|
||||
if (!g_topBarVisible || !ImGui::BeginMainMenuBar()) {
|
||||
if (!g_topBarVisible) {
|
||||
return;
|
||||
}
|
||||
|
||||
const ImGuiViewport* viewport = ImGui::GetMainViewport();
|
||||
ImGui::GetBackgroundDrawList()->AddRectFilled(viewport->Pos,
|
||||
ImVec2(viewport->Pos.x + viewport->Size.x, viewport->Pos.y + viewport->Size.y),
|
||||
IM_COL32(0, 0, 0, 70));
|
||||
ImGui::SetNextWindowPos(ImVec2(viewport->Pos.x + viewport->Size.x * 0.5f,
|
||||
viewport->Pos.y + viewport->Size.y - 24.0f),
|
||||
ImGuiCond_Always, ImVec2(0.5f, 1.0f));
|
||||
ImGui::SetNextWindowBgAlpha(0.85f);
|
||||
if (ImGui::Begin("Settings input hint", nullptr,
|
||||
ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_AlwaysAutoResize |
|
||||
ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_NoSavedSettings |
|
||||
ImGuiWindowFlags_NoFocusOnAppearing)) {
|
||||
ImGui::TextUnformatted("Settings open - game controls disabled. Press F10 to return to the game.");
|
||||
}
|
||||
ImGui::End();
|
||||
if (!ImGui::BeginMainMenuBar()) return;
|
||||
|
||||
ImGui::TextUnformatted("WiiCompiled");
|
||||
ImGui::Separator();
|
||||
const auto resolutionIt = std::find_if(kResolutions.begin(), kResolutions.end(), [](const ResolutionItem& item) {
|
||||
@@ -968,6 +1225,9 @@ void DrawTopBar() {
|
||||
|
||||
if (ImGui::BeginMenu("Controller settings")) {
|
||||
DrawControllerSettings();
|
||||
// Nest capture under this menu so opening/closing the modal preserves
|
||||
// the settings popup and its current port and scroll position.
|
||||
DrawRebindPrompt();
|
||||
ImGui::EndMenu();
|
||||
}
|
||||
|
||||
@@ -1074,7 +1334,12 @@ void HandleEvents(const AuroraEvent* events) noexcept {
|
||||
continue;
|
||||
}
|
||||
controller_mapping_wizard::HandleSdlEvent(ev->sdl);
|
||||
if (IsToggleKey(ev->sdl, SDL_SCANCODE_F10)) {
|
||||
if (g_rebind.active && (IsToggleKey(ev->sdl, SDL_SCANCODE_BACKSPACE) ||
|
||||
IsToggleKey(ev->sdl, SDL_SCANCODE_DELETE))) {
|
||||
CompleteRebind(g_rebind.kind == RebindKind::Controller ? PAD_NATIVE_BUTTON_DISABLED
|
||||
: static_cast<uint32_t>(PAD_KEY_INVALID));
|
||||
}
|
||||
if (!g_rebind.active && IsToggleKey(ev->sdl, SDL_SCANCODE_F10)) {
|
||||
SetTopBarVisible(!g_topBarVisible);
|
||||
}
|
||||
if (IsMouseActivity(ev->sdl)) {
|
||||
@@ -1102,7 +1367,7 @@ void Draw() noexcept {
|
||||
DrawTopBar();
|
||||
controller_mapping_wizard::Draw();
|
||||
// The wizard captures raw presses; keep them out of the game.
|
||||
const bool inputBlocked = controller_mapping_wizard::IsActive();
|
||||
const bool inputBlocked = controller_mapping_wizard::IsActive() || g_rebind.active;
|
||||
PADBlockInput(inputBlocked);
|
||||
InputBindings::SetInputBlocked(inputBlocked);
|
||||
DrawStartupScreen();
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
using System;
|
||||
using System;
|
||||
using System.Buffers.Binary;
|
||||
using System.Collections.Generic;
|
||||
using System.Diagnostics;
|
||||
@@ -1891,6 +1891,7 @@ int RunTranslateModCore(string[] argsTail, string? outputDirectoryOverride)
|
||||
overlayBuild,
|
||||
continuationPlan,
|
||||
retroWfcResolvedExecutableHooks,
|
||||
patchPlan,
|
||||
kamekFunctionStarts,
|
||||
moduleLinkBase,
|
||||
selected.CodeSize,
|
||||
@@ -2231,6 +2232,7 @@ int EmitModCpp(
|
||||
OverlayBuildResult overlayBuild,
|
||||
ContinuationPlan continuationPlan,
|
||||
IReadOnlyCollection<RetroWfcExecutableHookPlan>? retroWfcExecutableHooks,
|
||||
KamekPatchPlan patchPlan,
|
||||
IReadOnlyList<ModFunctionStart> kamekFunctionStarts,
|
||||
uint moduleLinkBase,
|
||||
uint moduleLinkedCodeSize,
|
||||
@@ -2272,14 +2274,25 @@ int EmitModCpp(
|
||||
.ToHashSet();
|
||||
var queuedContinuationAddresses = continuationPlan.Entries.Select(e => e.Address).ToHashSet();
|
||||
var discoveredContinuationQueue = new Queue<ContinuationEntry>();
|
||||
var linkedHookLrBasesByTarget = retroWfcExecutableHooks is null
|
||||
? new Dictionary<uint, uint[]>()
|
||||
: retroWfcExecutableHooks
|
||||
.Where(h => h.TargetAddress.HasValue && RetroWfcHookSetsLinkRegister(h))
|
||||
.GroupBy(h => h.TargetAddress!.Value)
|
||||
.ToDictionary(
|
||||
g => g.Key,
|
||||
g => g.Select(h => h.ContinuationAddress).Distinct().ToArray());
|
||||
var hookLrBases = new List<(uint TargetAddress, uint ContinuationAddress)>();
|
||||
if (retroWfcExecutableHooks is not null)
|
||||
{
|
||||
hookLrBases.AddRange(
|
||||
retroWfcExecutableHooks
|
||||
.Where(h => h.TargetAddress.HasValue && RetroWfcHookSetsLinkRegister(h))
|
||||
.Select(h => (h.TargetAddress!.Value, h.ContinuationAddress)));
|
||||
}
|
||||
foreach (var patch in patchPlan.ExecutablePatches.Where(p => p.CommandId == KamekCommandId.BranchLink && p.Arguments.Count > 0))
|
||||
{
|
||||
var target = KamekAddress.Resolve(patch.Arguments[0], patchPlan.ModuleGuestBase);
|
||||
hookLrBases.Add((target, checked(patch.CommandAddress + 4u)));
|
||||
}
|
||||
|
||||
var linkedHookLrBasesByTarget = hookLrBases
|
||||
.GroupBy(h => h.TargetAddress)
|
||||
.ToDictionary(
|
||||
g => g.Key,
|
||||
g => g.Select(h => h.ContinuationAddress).Distinct().ToArray());
|
||||
var lrContinuationCallTargets = linkedHookLrBasesByTarget.Keys.ToHashSet();
|
||||
var linkedCallFallthroughLrOverrides = retroWfcExecutableHooks is null
|
||||
? new Dictionary<uint, uint>()
|
||||
@@ -2750,123 +2763,8 @@ IEnumerable<uint> DirectModuleTargets(FunctionTranslationResult result, uint mod
|
||||
}
|
||||
}
|
||||
|
||||
IEnumerable<int> DiscoverLrRelativeIndirectJumpOffsets(FunctionTranslationResult result)
|
||||
{
|
||||
var lrOffsets = new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase);
|
||||
int? ctrOffset = null;
|
||||
|
||||
foreach (var instruction in result.Instructions)
|
||||
{
|
||||
var mnemonic = instruction.Mnemonic.ToLowerInvariant();
|
||||
if (mnemonic == "mflr" && TryGetInstructionReg(instruction, 0, out var lrDest))
|
||||
{
|
||||
lrOffsets[lrDest] = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
if ((mnemonic == "mr" || mnemonic == "or") &&
|
||||
TryGetInstructionReg(instruction, 0, out var moveDest) &&
|
||||
TryGetInstructionReg(instruction, 1, out var moveSource) &&
|
||||
(mnemonic == "mr" ||
|
||||
(instruction.Operands.Count >= 3 &&
|
||||
instruction.Operands[2] is PpcRegisterOperand moveSource2 &&
|
||||
string.Equals(NormalizeInstructionReg(moveSource2.Name), moveSource, StringComparison.OrdinalIgnoreCase))))
|
||||
{
|
||||
if (lrOffsets.TryGetValue(moveSource, out var sourceOffset))
|
||||
{
|
||||
lrOffsets[moveDest] = sourceOffset;
|
||||
}
|
||||
else
|
||||
{
|
||||
lrOffsets.Remove(moveDest);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
if (mnemonic == "addi" &&
|
||||
TryGetInstructionReg(instruction, 0, out var addDest) &&
|
||||
TryGetInstructionReg(instruction, 1, out var addBase) &&
|
||||
TryGetInstructionImm(instruction, 2, out var imm))
|
||||
{
|
||||
if (lrOffsets.TryGetValue(addBase, out var baseOffset))
|
||||
{
|
||||
lrOffsets[addDest] = checked(baseOffset + imm);
|
||||
}
|
||||
else
|
||||
{
|
||||
lrOffsets.Remove(addDest);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
if (mnemonic == "mtctr" && TryGetInstructionReg(instruction, 0, out var ctrSource))
|
||||
{
|
||||
ctrOffset = lrOffsets.TryGetValue(ctrSource, out var sourceOffset) ? sourceOffset : null;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (mnemonic == "bctr")
|
||||
{
|
||||
if (ctrOffset.HasValue)
|
||||
{
|
||||
yield return ctrOffset.Value;
|
||||
}
|
||||
ctrOffset = null;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (TryInstructionWritesDest(instruction, out var dest))
|
||||
{
|
||||
lrOffsets.Remove(dest);
|
||||
}
|
||||
}
|
||||
|
||||
static bool TryGetInstructionReg(PpcInstruction instruction, int index, out string register)
|
||||
{
|
||||
if (instruction.Operands.Count > index && instruction.Operands[index] is PpcRegisterOperand operand)
|
||||
{
|
||||
register = NormalizeInstructionReg(operand.Name);
|
||||
return true;
|
||||
}
|
||||
|
||||
register = string.Empty;
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool TryGetInstructionImm(PpcInstruction instruction, int index, out int immediate)
|
||||
{
|
||||
if (instruction.Operands.Count > index && instruction.Operands[index] is PpcImmediateOperand operand)
|
||||
{
|
||||
immediate = operand.Value;
|
||||
return true;
|
||||
}
|
||||
|
||||
immediate = 0;
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool TryInstructionWritesDest(PpcInstruction instruction, out string destination)
|
||||
{
|
||||
destination = string.Empty;
|
||||
if (instruction.Operands.Count == 0 || instruction.Operands[0] is not PpcRegisterOperand operand)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
var mnemonic = instruction.Mnemonic.ToLowerInvariant();
|
||||
if (mnemonic.StartsWith("st", StringComparison.Ordinal) ||
|
||||
mnemonic.StartsWith("b", StringComparison.Ordinal) ||
|
||||
mnemonic.StartsWith("cmp", StringComparison.Ordinal))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
destination = NormalizeInstructionReg(operand.Name);
|
||||
return true;
|
||||
}
|
||||
|
||||
static string NormalizeInstructionReg(string register) => register.ToLowerInvariant();
|
||||
}
|
||||
IEnumerable<int> DiscoverLrRelativeIndirectJumpOffsets(FunctionTranslationResult result) =>
|
||||
ContinuationPlanner.DiscoverLrRelativeIndirectJumpOffsets(result.Instructions);
|
||||
|
||||
static bool RetroWfcHookSetsLinkRegister(RetroWfcExecutableHookPlan hook) =>
|
||||
hook.TypeName is "call" or "branchCtrLink" ||
|
||||
|
||||
@@ -1,4 +1,5 @@
|
||||
using System.Buffers.Binary;
|
||||
using System.Collections.Immutable;
|
||||
using System.Text.Json;
|
||||
using Translator.Core.Disassembly;
|
||||
using Translator.Core.Parsing.Kamek;
|
||||
@@ -273,4 +274,530 @@ public static class ContinuationPlanner
|
||||
Or,
|
||||
AddSigned
|
||||
}
|
||||
|
||||
public static IEnumerable<int> DiscoverLrRelativeIndirectJumpOffsets(IReadOnlyList<PpcInstruction> instructions)
|
||||
{
|
||||
if (instructions.Count == 0)
|
||||
{
|
||||
yield break;
|
||||
}
|
||||
|
||||
var indexByAddress = new Dictionary<uint, int>(instructions.Count);
|
||||
for (var i = 0; i < instructions.Count; i++)
|
||||
{
|
||||
indexByAddress.TryAdd(instructions[i].Address, i);
|
||||
}
|
||||
|
||||
var visited = new HashSet<PathState>[instructions.Count];
|
||||
for (var i = 0; i < instructions.Count; i++)
|
||||
{
|
||||
visited[i] = new HashSet<PathState>();
|
||||
}
|
||||
|
||||
var seenOffsets = new HashSet<int>();
|
||||
var worklist = new Queue<(int Index, PathState State)>();
|
||||
const int MaxStatesPerInstruction = 16;
|
||||
|
||||
void Enqueue(int targetIndex, PathState stateToEnqueue)
|
||||
{
|
||||
worklist.Enqueue((targetIndex, stateToEnqueue));
|
||||
}
|
||||
|
||||
int? GetFallthroughIndex(PpcInstruction instruction)
|
||||
{
|
||||
if (indexByAddress.TryGetValue(instruction.EndAddress, out var nextIndex))
|
||||
{
|
||||
return nextIndex;
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
Enqueue(0, PathState.Empty);
|
||||
|
||||
while (worklist.Count > 0)
|
||||
{
|
||||
var (idx, state) = worklist.Dequeue();
|
||||
if (!visited[idx].Add(state))
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
if (visited[idx].Count > MaxStatesPerInstruction)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
var instruction = instructions[idx];
|
||||
var mnemonic = instruction.Mnemonic.ToLowerInvariant();
|
||||
var nextState = state;
|
||||
|
||||
if (mnemonic == "mflr" && TryGetInstructionReg(instruction, 0, out var lrDest))
|
||||
{
|
||||
if (lrDest == "r1")
|
||||
{
|
||||
nextState = nextState.WithClearedStackOffsets();
|
||||
}
|
||||
|
||||
nextState = nextState.LrReturnOffset.HasValue
|
||||
? nextState.WithLrOffset(lrDest, nextState.LrReturnOffset.Value)
|
||||
: nextState.WithoutLrOffset(lrDest);
|
||||
}
|
||||
else if ((mnemonic == "mr" || mnemonic == "or") &&
|
||||
TryGetInstructionReg(instruction, 0, out var moveDest) &&
|
||||
TryGetInstructionReg(instruction, 1, out var moveSource) &&
|
||||
(mnemonic == "mr" ||
|
||||
(instruction.Operands.Count >= 3 &&
|
||||
instruction.Operands[2] is PpcRegisterOperand moveSource2 &&
|
||||
string.Equals(NormalizeInstructionReg(moveSource2.Name), moveSource, StringComparison.OrdinalIgnoreCase))))
|
||||
{
|
||||
if (moveDest == "r1" && moveSource != "r1")
|
||||
{
|
||||
nextState = nextState.WithClearedStackOffsets();
|
||||
}
|
||||
nextState = nextState.LrOffsets.TryGetValue(moveSource, out var sourceOffset)
|
||||
? nextState.WithLrOffset(moveDest, sourceOffset)
|
||||
: nextState.WithoutLrOffset(moveDest);
|
||||
}
|
||||
else if ((mnemonic == "addi" || mnemonic == "addic") &&
|
||||
TryGetInstructionReg(instruction, 0, out var addDest) &&
|
||||
TryGetInstructionReg(instruction, 1, out var addBase) &&
|
||||
TryGetInstructionImm(instruction, 2, out var imm))
|
||||
{
|
||||
if (addDest == "r1")
|
||||
{
|
||||
nextState = addBase == "r1"
|
||||
? nextState.WithSpDelta(unchecked(nextState.SpDelta + imm))
|
||||
: nextState.WithClearedStackOffsets();
|
||||
}
|
||||
nextState = nextState.LrOffsets.TryGetValue(addBase, out var baseOffset)
|
||||
? nextState.WithLrOffset(addDest, unchecked(baseOffset + imm))
|
||||
: nextState.WithoutLrOffset(addDest);
|
||||
}
|
||||
else if (mnemonic == "mtctr" && TryGetInstructionReg(instruction, 0, out var ctrSource))
|
||||
{
|
||||
var newCtrOffset = nextState.LrOffsets.TryGetValue(ctrSource, out var sourceOffset) ? sourceOffset : (int?)null;
|
||||
nextState = nextState.WithCtrOffset(newCtrOffset);
|
||||
}
|
||||
else if (mnemonic == "mtlr" && TryGetInstructionReg(instruction, 0, out var lrSource))
|
||||
{
|
||||
var newLrReturnOffset = nextState.LrOffsets.TryGetValue(lrSource, out var sourceOffset) ? sourceOffset : (int?)null;
|
||||
nextState = nextState.WithLrReturnOffset(newLrReturnOffset);
|
||||
}
|
||||
else if (mnemonic == "stw" &&
|
||||
TryGetInstructionReg(instruction, 0, out var storeSrc) &&
|
||||
TryGetInstructionDisplacement(instruction, 1, out var storeDisp, out var storeBase, out _))
|
||||
{
|
||||
if (storeBase == "r1")
|
||||
{
|
||||
var targetSlot = nextState.SpDelta + storeDisp;
|
||||
nextState = nextState.LrOffsets.TryGetValue(storeSrc, out var offset)
|
||||
? nextState.WithStackOffset(targetSlot, offset)
|
||||
: nextState.WithoutStackOffset(targetSlot);
|
||||
}
|
||||
}
|
||||
else if (mnemonic == "stwu" &&
|
||||
TryGetInstructionReg(instruction, 0, out var stwuSrc) &&
|
||||
TryGetInstructionDisplacement(instruction, 1, out var stwuDisp, out var stwuBase, out _))
|
||||
{
|
||||
if (stwuBase == "r1")
|
||||
{
|
||||
var targetSlot = nextState.SpDelta + stwuDisp;
|
||||
nextState = nextState.LrOffsets.TryGetValue(stwuSrc, out var offset)
|
||||
? nextState.WithStackOffset(targetSlot, offset)
|
||||
: nextState.WithoutStackOffset(targetSlot);
|
||||
nextState = nextState.WithAdjustedStackPointer(stwuDisp);
|
||||
}
|
||||
else
|
||||
{
|
||||
nextState = nextState.WithoutLrOffset(stwuBase);
|
||||
}
|
||||
}
|
||||
else if (TryGetStackStoreRange(instruction, out var storeOffset, out var storeSize, out var updatesStackPointer))
|
||||
{
|
||||
nextState = nextState.WithoutStackOffsetsInRange(
|
||||
nextState.SpDelta + storeOffset,
|
||||
storeSize);
|
||||
if (updatesStackPointer)
|
||||
{
|
||||
nextState = nextState.WithAdjustedStackPointer(storeOffset);
|
||||
}
|
||||
}
|
||||
else if (mnemonic == "lwz" &&
|
||||
TryGetInstructionReg(instruction, 0, out var loadDest) &&
|
||||
TryGetInstructionDisplacement(instruction, 1, out var loadDisp, out var loadBase, out _))
|
||||
{
|
||||
if (loadBase == "r1")
|
||||
{
|
||||
var targetSlot = nextState.SpDelta + loadDisp;
|
||||
var hasStackOffset = nextState.StackOffsets.TryGetValue(targetSlot, out var offset);
|
||||
|
||||
if (loadDest == "r1")
|
||||
{
|
||||
nextState = nextState.WithClearedStackOffsets();
|
||||
}
|
||||
|
||||
nextState = hasStackOffset
|
||||
? nextState.WithLrOffset(loadDest, offset)
|
||||
: nextState.WithoutLrOffset(loadDest);
|
||||
}
|
||||
else
|
||||
{
|
||||
nextState = nextState.WithoutLrOffset(loadDest);
|
||||
if (loadDest == "r1")
|
||||
{
|
||||
nextState = nextState.WithClearedStackOffsets();
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if (TryInstructionWritesDest(instruction, out var destinations))
|
||||
{
|
||||
foreach (var dest in destinations)
|
||||
{
|
||||
nextState = nextState.WithoutLrOffset(dest);
|
||||
if (dest == "r1")
|
||||
{
|
||||
nextState = nextState.WithClearedStackOffsets();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (instruction.IsCall || mnemonic == "bl" || mnemonic == "blrl")
|
||||
{
|
||||
nextState = nextState.WithLrReturnOffset(null).WithCtrOffset(null);
|
||||
for (var register = 0; register <= 12; register++)
|
||||
{
|
||||
if (register != 1 && register != 2)
|
||||
{
|
||||
nextState = nextState.WithoutLrOffset($"r{register}");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (mnemonic == "bctr")
|
||||
{
|
||||
if (state.CtrOffset.HasValue && seenOffsets.Add(state.CtrOffset.Value))
|
||||
{
|
||||
yield return state.CtrOffset.Value;
|
||||
}
|
||||
|
||||
nextState = nextState.WithCtrOffset(null);
|
||||
if (instruction.BranchTargets.Count == 0)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
var isReturn = !instruction.IsCall && (instruction.IsReturn || mnemonic == "blr" || mnemonic == "bclr" ||
|
||||
(mnemonic.StartsWith("b", StringComparison.Ordinal) && mnemonic.EndsWith("lr", StringComparison.Ordinal)));
|
||||
if (isReturn)
|
||||
{
|
||||
if (state.LrReturnOffset.HasValue && state.LrReturnOffset.Value != 0 && seenOffsets.Add(state.LrReturnOffset.Value))
|
||||
{
|
||||
yield return state.LrReturnOffset.Value;
|
||||
}
|
||||
|
||||
if (!instruction.IsConditionalBranch)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (instruction.IsUnconditionalBranch)
|
||||
{
|
||||
foreach (var target in instruction.BranchTargets)
|
||||
{
|
||||
if (indexByAddress.TryGetValue(target, out var targetIndex))
|
||||
{
|
||||
Enqueue(targetIndex, nextState);
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (instruction.IsConditionalBranch)
|
||||
{
|
||||
var fallthrough = GetFallthroughIndex(instruction);
|
||||
if (fallthrough.HasValue)
|
||||
{
|
||||
Enqueue(fallthrough.Value, nextState);
|
||||
}
|
||||
|
||||
if (!isReturn)
|
||||
{
|
||||
foreach (var target in instruction.BranchTargets)
|
||||
{
|
||||
if (indexByAddress.TryGetValue(target, out var targetIndex))
|
||||
{
|
||||
Enqueue(targetIndex, nextState);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
var fallthrough = GetFallthroughIndex(instruction);
|
||||
if (fallthrough.HasValue)
|
||||
{
|
||||
Enqueue(fallthrough.Value, nextState);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static bool TryGetInstructionReg(PpcInstruction instruction, int index, out string register)
|
||||
{
|
||||
if (instruction.Operands.Count > index && instruction.Operands[index] is PpcRegisterOperand operand)
|
||||
{
|
||||
register = NormalizeInstructionReg(operand.Name);
|
||||
return true;
|
||||
}
|
||||
|
||||
register = string.Empty;
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool TryGetInstructionDisplacement(PpcInstruction instruction, int index, out int offset, out string baseRegister, out int baseRegisterNumber)
|
||||
{
|
||||
if (instruction.Operands.Count > index && instruction.Operands[index] is PpcDisplacementOperand operand)
|
||||
{
|
||||
offset = operand.Offset;
|
||||
baseRegister = NormalizeInstructionReg(operand.BaseRegister);
|
||||
baseRegisterNumber = operand.BaseRegisterNumber;
|
||||
return true;
|
||||
}
|
||||
|
||||
offset = 0;
|
||||
baseRegister = string.Empty;
|
||||
baseRegisterNumber = -1;
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool TryGetInstructionImm(PpcInstruction instruction, int index, out int immediate)
|
||||
{
|
||||
if (instruction.Operands.Count > index && instruction.Operands[index] is PpcImmediateOperand operand)
|
||||
{
|
||||
immediate = operand.Value;
|
||||
return true;
|
||||
}
|
||||
|
||||
immediate = 0;
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool TryInstructionWritesDest(PpcInstruction instruction, out IReadOnlyList<string> destinations)
|
||||
{
|
||||
if (instruction.Operands.Count == 0 || instruction.Operands[0] is not PpcRegisterOperand operand)
|
||||
{
|
||||
destinations = Array.Empty<string>();
|
||||
return false;
|
||||
}
|
||||
|
||||
var mnemonic = instruction.Mnemonic.ToLowerInvariant();
|
||||
if (mnemonic.StartsWith("st", StringComparison.Ordinal) ||
|
||||
mnemonic.StartsWith("b", StringComparison.Ordinal) ||
|
||||
mnemonic.StartsWith("cmp", StringComparison.Ordinal))
|
||||
{
|
||||
destinations = Array.Empty<string>();
|
||||
return false;
|
||||
}
|
||||
|
||||
if (mnemonic == "lmw")
|
||||
{
|
||||
var startReg = Math.Clamp(operand.Number, 0, 31);
|
||||
var regs = new string[32 - startReg];
|
||||
for (var r = startReg; r <= 31; r++)
|
||||
{
|
||||
regs[r - startReg] = $"r{r}";
|
||||
}
|
||||
destinations = regs;
|
||||
return true;
|
||||
}
|
||||
|
||||
destinations = [NormalizeInstructionReg(operand.Name)];
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool TryGetStackStoreRange(PpcInstruction instruction, out int offset, out int size, out bool updatesStackPointer)
|
||||
{
|
||||
offset = 0;
|
||||
size = 0;
|
||||
updatesStackPointer = false;
|
||||
if (!TryGetInstructionDisplacement(instruction, 1, out offset, out var baseRegister, out _) ||
|
||||
baseRegister != "r1")
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
switch (instruction.Mnemonic.ToLowerInvariant())
|
||||
{
|
||||
case "stfs":
|
||||
size = 4;
|
||||
return true;
|
||||
case "stfsu":
|
||||
size = 4;
|
||||
updatesStackPointer = true;
|
||||
return true;
|
||||
case "stfd":
|
||||
size = 8;
|
||||
return true;
|
||||
case "stfdu":
|
||||
size = 8;
|
||||
updatesStackPointer = true;
|
||||
return true;
|
||||
case "stmw" when instruction.Operands[0] is PpcRegisterOperand register:
|
||||
size = checked((32 - Math.Clamp(register.Number, 0, 31)) * 4);
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
static string NormalizeInstructionReg(string register) => register.ToLowerInvariant();
|
||||
}
|
||||
|
||||
private sealed class PathState : IEquatable<PathState>
|
||||
{
|
||||
public ImmutableDictionary<string, int> LrOffsets { get; }
|
||||
public int? CtrOffset { get; }
|
||||
public int? LrReturnOffset { get; }
|
||||
public int SpDelta { get; }
|
||||
public ImmutableDictionary<int, int> StackOffsets { get; }
|
||||
|
||||
public PathState(
|
||||
ImmutableDictionary<string, int> lrOffsets,
|
||||
int? ctrOffset,
|
||||
int? lrReturnOffset,
|
||||
int spDelta,
|
||||
ImmutableDictionary<int, int> stackOffsets)
|
||||
{
|
||||
LrOffsets = lrOffsets;
|
||||
CtrOffset = ctrOffset;
|
||||
LrReturnOffset = lrReturnOffset;
|
||||
SpDelta = spDelta;
|
||||
StackOffsets = stackOffsets;
|
||||
}
|
||||
|
||||
public static readonly PathState Empty = new(
|
||||
ImmutableDictionary<string, int>.Empty.WithComparers(StringComparer.OrdinalIgnoreCase),
|
||||
null,
|
||||
0,
|
||||
0,
|
||||
ImmutableDictionary<int, int>.Empty);
|
||||
|
||||
public PathState WithLrOffset(string register, int offset) =>
|
||||
LrOffsets.TryGetValue(register, out var cur) && cur == offset
|
||||
? this
|
||||
: new(LrOffsets.SetItem(register, offset), CtrOffset, LrReturnOffset, SpDelta, StackOffsets);
|
||||
|
||||
public PathState WithoutLrOffset(string register) =>
|
||||
LrOffsets.ContainsKey(register)
|
||||
? new(LrOffsets.Remove(register), CtrOffset, LrReturnOffset, SpDelta, StackOffsets)
|
||||
: this;
|
||||
|
||||
public PathState WithCtrOffset(int? ctrOffset) =>
|
||||
ctrOffset == CtrOffset
|
||||
? this
|
||||
: new(LrOffsets, ctrOffset, LrReturnOffset, SpDelta, StackOffsets);
|
||||
|
||||
public PathState WithLrReturnOffset(int? lrReturnOffset) =>
|
||||
lrReturnOffset == LrReturnOffset
|
||||
? this
|
||||
: new(LrOffsets, CtrOffset, lrReturnOffset, SpDelta, StackOffsets);
|
||||
|
||||
public PathState WithSpDelta(int spDelta) =>
|
||||
spDelta == SpDelta
|
||||
? this
|
||||
: new(LrOffsets, CtrOffset, LrReturnOffset, spDelta, StackOffsets);
|
||||
|
||||
public PathState WithAdjustedStackPointer(int displacement)
|
||||
{
|
||||
// r1 can hold an LR-relative address too. Update both relations;
|
||||
// guest address arithmetic wraps at 32 bits.
|
||||
var updated = WithSpDelta(unchecked(SpDelta + displacement));
|
||||
return LrOffsets.TryGetValue("r1", out var offset)
|
||||
? updated.WithLrOffset("r1", unchecked(offset + displacement))
|
||||
: updated;
|
||||
}
|
||||
|
||||
public PathState WithStackOffset(int slot, int offset) =>
|
||||
StackOffsets.TryGetValue(slot, out var cur) && cur == offset
|
||||
? this
|
||||
: new(LrOffsets, CtrOffset, LrReturnOffset, SpDelta, StackOffsets.SetItem(slot, offset));
|
||||
|
||||
public PathState WithoutStackOffset(int slot) =>
|
||||
StackOffsets.ContainsKey(slot)
|
||||
? new(LrOffsets, CtrOffset, LrReturnOffset, SpDelta, StackOffsets.Remove(slot))
|
||||
: this;
|
||||
|
||||
public PathState WithoutStackOffsetsInRange(int start, int size)
|
||||
{
|
||||
var end = checked(start + size);
|
||||
var remaining = StackOffsets;
|
||||
foreach (var slot in StackOffsets.Keys)
|
||||
{
|
||||
if (slot < end && start < checked(slot + 4))
|
||||
{
|
||||
remaining = remaining.Remove(slot);
|
||||
}
|
||||
}
|
||||
|
||||
return remaining.Count == StackOffsets.Count
|
||||
? this
|
||||
: new(LrOffsets, CtrOffset, LrReturnOffset, SpDelta, remaining);
|
||||
}
|
||||
|
||||
public PathState WithClearedStackOffsets() =>
|
||||
StackOffsets.IsEmpty
|
||||
? this
|
||||
: new(LrOffsets, CtrOffset, LrReturnOffset, SpDelta, ImmutableDictionary<int, int>.Empty);
|
||||
|
||||
public bool Equals(PathState? other)
|
||||
{
|
||||
if (ReferenceEquals(this, other)) return true;
|
||||
if (other is null) return false;
|
||||
if (CtrOffset != other.CtrOffset || LrReturnOffset != other.LrReturnOffset || SpDelta != other.SpDelta) return false;
|
||||
if (LrOffsets.Count != other.LrOffsets.Count || StackOffsets.Count != other.StackOffsets.Count) return false;
|
||||
foreach (var (k, v) in LrOffsets)
|
||||
{
|
||||
if (!other.LrOffsets.TryGetValue(k, out var otherV) || v != otherV)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
foreach (var (k, v) in StackOffsets)
|
||||
{
|
||||
if (!other.StackOffsets.TryGetValue(k, out var otherV) || v != otherV)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
public override bool Equals(object? obj) => obj is PathState other && Equals(other);
|
||||
|
||||
public override int GetHashCode()
|
||||
{
|
||||
var hash = new HashCode();
|
||||
hash.Add(CtrOffset);
|
||||
hash.Add(LrReturnOffset);
|
||||
hash.Add(SpDelta);
|
||||
hash.Add(LrOffsets.Count);
|
||||
var regHash = 0;
|
||||
foreach (var (k, v) in LrOffsets)
|
||||
{
|
||||
regHash ^= HashCode.Combine(StringComparer.OrdinalIgnoreCase.GetHashCode(k), v);
|
||||
}
|
||||
hash.Add(regHash);
|
||||
hash.Add(StackOffsets.Count);
|
||||
var stackHash = 0;
|
||||
foreach (var (k, v) in StackOffsets)
|
||||
{
|
||||
stackHash ^= HashCode.Combine(k, v);
|
||||
}
|
||||
hash.Add(stackHash);
|
||||
return hash.ToHashCode();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,4 +1,6 @@
|
||||
using System.Buffers.Binary;
|
||||
using System.Linq;
|
||||
using Translator.Core.Disassembly;
|
||||
using Translator.Core.Mods;
|
||||
using Translator.Core.Mods.Mkwii;
|
||||
using Translator.Core.Parsing.Kamek;
|
||||
@@ -128,6 +130,54 @@ public class ContinuationPlannerTests
|
||||
Assert.Contains("Retro WFC executable hook continuation", entry.Reason);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void DiscoverLrRelativeIndirectJumpOffsets_DiscoversSkipReturnOffset()
|
||||
{
|
||||
var instructions = new[]
|
||||
{
|
||||
PpcDecoder.Decode(0x8180D8E8, 0x7FE802A6u), // mflr r31
|
||||
PpcDecoder.Decode(0x8180D8EC, 0x3BFF0014u), // addi r31, r31, 20
|
||||
PpcDecoder.Decode(0x8180D8F0, 0x7FE803A6u), // mtlr r31
|
||||
PpcDecoder.Decode(0x8180D8F4, 0x4E800020u), // blr
|
||||
};
|
||||
|
||||
var offsets = ContinuationPlanner.DiscoverLrRelativeIndirectJumpOffsets(instructions).ToArray();
|
||||
var offset = Assert.Single(offsets);
|
||||
Assert.Equal(20, offset);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void DiscoverLrRelativeIndirectJumpOffsets_IgnoresStandardLrRestore()
|
||||
{
|
||||
var instructions = new[]
|
||||
{
|
||||
PpcDecoder.Decode(0x8180D8E8, 0x7FE802A6u), // mflr r31
|
||||
PpcDecoder.Decode(0x8180D8EC, 0x93E10008u), // stw r31, 8(r1)
|
||||
PpcDecoder.Decode(0x8180D8F0, 0x83E10008u), // lwz r31, 8(r1)
|
||||
PpcDecoder.Decode(0x8180D8F4, 0x7FE803A6u), // mtlr r31
|
||||
PpcDecoder.Decode(0x8180D8F8, 0x4E800020u), // blr
|
||||
};
|
||||
|
||||
var offsets = ContinuationPlanner.DiscoverLrRelativeIndirectJumpOffsets(instructions);
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void DiscoverLrRelativeIndirectJumpOffsets_SupportsBctrOffset()
|
||||
{
|
||||
var instructions = new[]
|
||||
{
|
||||
PpcDecoder.Decode(0x8180D8E8, 0x7FE802A6u), // mflr r31
|
||||
PpcDecoder.Decode(0x8180D8EC, 0x397F0008u), // addi r11, r31, 8
|
||||
PpcDecoder.Decode(0x8180D8F0, 0x7D6903A6u), // mtctr r11
|
||||
PpcDecoder.Decode(0x8180D8F4, 0x4E800420u), // bctr
|
||||
};
|
||||
|
||||
var offsets = ContinuationPlanner.DiscoverLrRelativeIndirectJumpOffsets(instructions).ToArray();
|
||||
var offset = Assert.Single(offsets);
|
||||
Assert.Equal(8, offset);
|
||||
}
|
||||
|
||||
private static KamekChunk EmptyChunk() =>
|
||||
new(
|
||||
0,
|
||||
|
||||
@@ -0,0 +1,63 @@
|
||||
using Translator.Core.Analysis.Ssa;
|
||||
using Translator.Core.Analysis.Representation;
|
||||
using Translator.Core.CodeGen;
|
||||
using Translator.Core.Ir;
|
||||
using Translator.Core.Representation;
|
||||
using Xunit;
|
||||
|
||||
namespace Translator.Tests;
|
||||
|
||||
// This binary-free code-generation regression must run in the default suite.
|
||||
public class LrContinuationCodeGenTests
|
||||
{
|
||||
[Fact]
|
||||
public void CodeGenerator_DispatchesGuestCallLrContinuationWithoutMarkingTargetNonReturning()
|
||||
{
|
||||
var function = new IrFunction(
|
||||
"lr_continuation_call",
|
||||
"0x800E591C",
|
||||
new[]
|
||||
{
|
||||
new IrBasicBlock("0x800E591C", new IrInstruction[]
|
||||
{
|
||||
new IrAssign("lr", IrValue.Imm(unchecked((int)0x800E5920u))),
|
||||
new IrCall(string.Empty, "0x8179AC3C", Array.Empty<IrValue>()),
|
||||
new IrAssign("r3", IrValue.Imm(8)),
|
||||
new IrReturn(null)
|
||||
}),
|
||||
new IrBasicBlock("0x800E5934", new IrInstruction[]
|
||||
{
|
||||
new IrAssign("r3", IrValue.Imm(1)),
|
||||
new IrReturn(null)
|
||||
})
|
||||
});
|
||||
|
||||
var types = new RepresentationEnvironment(new Dictionary<string, ValueRepresentation>
|
||||
{
|
||||
["lr"] = ValueRepresentation.UInt32,
|
||||
["r3"] = ValueRepresentation.UInt32
|
||||
});
|
||||
var signature = new FunctionAbiClassification("lr_continuation_call", ValueRepresentation.Void);
|
||||
|
||||
var ssa = new SsaTransformer().Convert(function);
|
||||
var code = new CxxLinearCodeGenerator().Emit(
|
||||
0x800E591C,
|
||||
ssa,
|
||||
signature,
|
||||
types,
|
||||
lrContinuationCallTargets: new HashSet<uint> { 0x8179AC3Cu });
|
||||
|
||||
var callIndex = code.IndexOf("InvokeDirectCpu<0x8179AC3Cu>(ctx);", StringComparison.Ordinal);
|
||||
var fallthroughGuardIndex = code.IndexOf("if (ctx->lr != 0x800E5920u)", callIndex, StringComparison.Ordinal);
|
||||
var localCaseIndex = code.IndexOf("case 0x800E5934u:", fallthroughGuardIndex, StringComparison.Ordinal);
|
||||
var returnIndex = code.IndexOf("return;", localCaseIndex, StringComparison.Ordinal);
|
||||
var fallthroughAssignmentIndex = code.IndexOf("r3 = 8;", callIndex, StringComparison.Ordinal);
|
||||
|
||||
Assert.True(callIndex >= 0);
|
||||
Assert.True(fallthroughGuardIndex > callIndex);
|
||||
Assert.True(localCaseIndex > fallthroughGuardIndex);
|
||||
Assert.True(returnIndex > localCaseIndex);
|
||||
Assert.True(fallthroughAssignmentIndex > returnIndex, code);
|
||||
Assert.Contains("goto loc_800E5934;", code);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,448 @@
|
||||
using System.Buffers.Binary;
|
||||
using Translator.Core.Disassembly;
|
||||
using Translator.Core.Loading;
|
||||
using Translator.Core.Mods;
|
||||
using Xunit;
|
||||
|
||||
namespace Translator.Tests;
|
||||
|
||||
public class LrRelativeContinuationTests
|
||||
{
|
||||
[Theory]
|
||||
[InlineData(20, 40)]
|
||||
[InlineData(40, 20)]
|
||||
public void MutuallyExclusiveAdjustmentsKeepBothOffsets(int firstOffset, int secondOffset)
|
||||
{
|
||||
// Both arms start with the incoming LR and join at mtlr. Adding the
|
||||
// offsets together invents a continuation that neither arm can reach.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // +00: mflr r31
|
||||
0x2C030000u, // +04: cmpwi r3,0
|
||||
0x4182000Cu, // +08: beq +0x14
|
||||
AddiR31(firstOffset), // +0C: addi r31,r31,firstOffset
|
||||
0x48000008u, // +10: b +0x18
|
||||
AddiR31(secondOffset), // +14: addi r31,r31,secondOffset
|
||||
0x7FE803A6u, // +18: mtlr r31
|
||||
0x4E800020u);// +1C: blr
|
||||
|
||||
Assert.Equal(new[] { 20, 40 }, offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void NormalReturnArmDoesNotEraseSkipReturnAtSharedBlr()
|
||||
{
|
||||
// The normal arm writes the original LR; it must not overwrite the
|
||||
// other arm's LR + 20 in the analysis of the shared return.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // +00: mflr r31
|
||||
0x2C030000u, // +04: cmpwi r3,0
|
||||
0x41820010u, // +08: beq +0x18
|
||||
0x397F0014u, // +0C: addi r11,r31,20
|
||||
0x7D6803A6u, // +10: mtlr r11
|
||||
0x48000008u, // +14: b +0x1C
|
||||
0x7FE803A6u, // +18: mtlr r31
|
||||
0x4E800020u);// +1C: blr
|
||||
|
||||
Assert.Equal(new[] { 20 }, offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void ConditionalNormalReturnStillDiscoversSkipOnFallthrough()
|
||||
{
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x2C030000u, // cmpwi r3,0
|
||||
0x4D820020u, // beqlr
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x7FE803A6u, // mtlr r31
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Equal(new[] { 20 }, offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void SavedNonvolatileLrSurvivesHelperCall()
|
||||
{
|
||||
// r31 survives a normal ABI call even though the call replaces LR.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x48000101u, // bl helper outside this function
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x7FE803A6u, // mtlr r31
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Equal(new[] { 20 }, offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void ReloadingSavedRegisterAfterMtlrDoesNotEraseSkipReturn()
|
||||
{
|
||||
// A hook epilogue restores the caller's r31 after committing its
|
||||
// adjusted return address to LR.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x7FE803A6u, // mtlr r31
|
||||
0x83E10008u, // lwz r31,8(r1)
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Equal(new[] { 20 }, offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void UnknownLrWriteReplacesEarlierSkipReturn()
|
||||
{
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x7FE803A6u, // mtlr r31
|
||||
0x80010008u, // lwz r0,8(r1)
|
||||
0x7C0803A6u, // mtlr r0
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void UnadjustedRegisterReturnDoesNotAddAContinuation()
|
||||
{
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x7FE803A6u, // mtlr r31
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void LoadMultipleWordOverwritesSavedRegistersThroughR31()
|
||||
{
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0xBB610008u, // lmw r30,8(r1)
|
||||
0x7FE803A6u, // mtlr r31
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void BlrlCallIsNotTreatedAsReturn()
|
||||
{
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x4E800021u, // blrl
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x7FE803A6u, // mtlr r31
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Equal(new[] { 20 }, offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void MflrAfterCallDoesNotTreatClobberedLrAsIncomingLr()
|
||||
{
|
||||
var offsets = DiscoverOffsets(
|
||||
0x48000101u, // bl helper
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x7FE803A6u, // mtlr r31
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void RestoredIncomingLrBeforeCtrSkipStillDiscoversOffset()
|
||||
{
|
||||
// The helper replaces LR, but the stack save/restore recovers the
|
||||
// incoming LR before the hook jumps to the caller's continuation.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7C0802A6u, // mflr r0
|
||||
0x90010004u, // stw r0,4(r1)
|
||||
0x9421FFF0u, // stwu r1,-16(r1)
|
||||
0x48000101u, // bl helper outside this function
|
||||
0x38210010u, // addi r1,r1,16
|
||||
0x80010004u, // lwz r0,4(r1)
|
||||
0x7C0803A6u, // mtlr r0
|
||||
0x7D6802A6u, // mflr r11
|
||||
0x396B0008u, // addi r11,r11,8
|
||||
0x7D6903A6u, // mtctr r11
|
||||
0x4E800420u);// bctr
|
||||
|
||||
Assert.Equal(new[] { 8 }, offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void BoundedLoopBeforeCtrSkipStillDiscoversOffset()
|
||||
{
|
||||
// Updating an LR-derived register in a two-iteration loop must not
|
||||
// starve analysis of the exit, whose target uses unchanged r31.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x7FC802A6u, // mflr r30
|
||||
0x38600002u, // li r3,2
|
||||
0x7C6903A6u, // mtctr r3
|
||||
0x3BDE0004u, // addi r30,r30,4
|
||||
0x4200FFFCu, // bdnz -4
|
||||
0x397F0008u, // addi r11,r31,8
|
||||
0x7D6903A6u, // mtctr r11
|
||||
0x4E800420u);// bctr
|
||||
|
||||
Assert.Equal(new[] { 8 }, offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void UntrackedR1WriteInvalidatesStackTracking()
|
||||
{
|
||||
// If r1 is overwritten from an untracked source, previously saved stack slots
|
||||
// must not be used to recover LR state.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x93E10008u, // stw r31,8(r1)
|
||||
0x80230000u, // lwz r1,0(r3)
|
||||
0x80010008u, // lwz r0,8(r1)
|
||||
0x7C0803A6u, // mtlr r0
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void LargeStraightLineHandlerStillDiscoversSkipReturn()
|
||||
{
|
||||
// The analyzer's global step budget is spent one step per (instruction,
|
||||
// state) pair, so a long enough handler exhausts it before reaching the
|
||||
// return and silently reports no continuation at all. Main's linear
|
||||
// scanner had no budget and always found the offset.
|
||||
var words = new List<uint>
|
||||
{
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u // addi r31,r31,20
|
||||
};
|
||||
for (var i = 0; i < 10_010; i++)
|
||||
{
|
||||
words.Add(0x60000000u); // nop
|
||||
}
|
||||
words.Add(0x7FE803A6u); // mtlr r31
|
||||
words.Add(0x4E800020u); // blr
|
||||
|
||||
Assert.Equal(new[] { 20 }, DiscoverOffsets(words.ToArray()));
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void LargeBranchingHandlerStillDiscoversCtrSkip()
|
||||
{
|
||||
// Same budget, reached far sooner once the handler branches: this is the
|
||||
// bctr shape the pre-PR scanner discovered at any function size.
|
||||
var words = new List<uint> { 0x7FE802A6u }; // mflr r31
|
||||
for (var i = 0; i < 160; i++)
|
||||
{
|
||||
var displacement = (uint)((i + 1) * 4 & 0xFFFF);
|
||||
words.Add(0x2C030000u); // cmpwi r3,0
|
||||
words.Add(0x4182000Cu); // beq +0xC
|
||||
words.Add(0x3BDF0000u | displacement); // addi r30,r31,disp
|
||||
words.Add(0x48000008u); // b +8
|
||||
words.Add(0x3BBF0000u | displacement); // addi r29,r31,disp
|
||||
}
|
||||
words.Add(0x397F0008u); // addi r11,r31,8
|
||||
words.Add(0x7D6903A6u); // mtctr r11
|
||||
words.Add(0x4E800420u); // bctr
|
||||
|
||||
Assert.Equal(new[] { 8 }, DiscoverOffsets(words.ToArray()));
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void FloatStoreOverSavedSlotInvalidatesStackTracking()
|
||||
{
|
||||
// stfd writes 0x10..0x17, which covers the slot the adjusted LR was
|
||||
// saved to. Only stw/stwu invalidate slots today, so the reload is
|
||||
// credited with a return address the stack no longer holds.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x93E10014u, // stw r31,0x14(r1)
|
||||
0xD8410010u, // stfd f2,0x10(r1)
|
||||
0x80010014u, // lwz r0,0x14(r1)
|
||||
0x7C0803A6u, // mtlr r0
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void StoreMultipleOverSavedSlotInvalidatesStackTracking()
|
||||
{
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x93E10008u, // stw r31,8(r1)
|
||||
0xBFC10008u, // stmw r30,8(r1)
|
||||
0x80010008u, // lwz r0,8(r1)
|
||||
0x7C0803A6u, // mtlr r0
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void StackPointerUpdatePreservesAdjustedLrOffset()
|
||||
{
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7C2802A6u, // mflr r1
|
||||
0xDC410004u, // stfdu f2,4(r1)
|
||||
0x7C2803A6u, // mtlr r1
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Equal(new[] { 4 }, offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void VolatileRegisterDoesNotSurviveHelperCall()
|
||||
{
|
||||
// r3 is caller-saved, so the callee is free to destroy the adjusted
|
||||
// return address this hook staged before the call.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7C6802A6u, // mflr r3
|
||||
0x38630014u, // addi r3,r3,20
|
||||
0x48000101u, // bl helper outside this function
|
||||
0x7C6803A6u, // mtlr r3
|
||||
0x4E800020u);// blr
|
||||
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void CtrDoesNotSurviveHelperCall()
|
||||
{
|
||||
// CTR is volatile across a call for the same reason.
|
||||
var offsets = DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x7FE903A6u, // mtctr r31
|
||||
0x48000101u, // bl helper outside this function
|
||||
0x4E800420u);// bctr
|
||||
|
||||
Assert.Empty(offsets);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void MflrR1InvalidatesOldStackSlots()
|
||||
{
|
||||
// After mflr r1, 8(r1) refers to incoming LR + 8, not the old
|
||||
// stack slot. Its contents are unknown; do not invent a +20 return.
|
||||
Assert.Empty(DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x93E10008u, // stw r31,8(r1)
|
||||
0x7C2802A6u, // mflr r1
|
||||
0x80010008u, // lwz r0,8(r1)
|
||||
0x7C0803A6u, // mtlr r0
|
||||
0x4E800020u)); // blr
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void AddiR1UpdatesLrRelativeOffset()
|
||||
{
|
||||
// Like StackPointerUpdatePreservesAdjustedLrOffset, r1 holds incoming
|
||||
// LR here. Updating r1 must update that relation as well as stack state.
|
||||
Assert.Equal(new[] { 4 }, DiscoverOffsets(
|
||||
0x7C2802A6u, // mflr r1
|
||||
0x38210004u, // addi r1,r1,4
|
||||
0x7C2803A6u, // mtlr r1
|
||||
0x4E800020u)); // blr
|
||||
}
|
||||
|
||||
[Theory]
|
||||
[InlineData(0x38210004u, 4)] // addi r1,r1,4
|
||||
[InlineData(0x30210004u, 4)] // addic r1,r1,4
|
||||
[InlineData(0x94210004u, 4)] // stwu r1,4(r1)
|
||||
[InlineData(0xD4410004u, 4)] // stfsu f2,4(r1)
|
||||
[InlineData(0xDC410004u, 4)] // stfdu f2,4(r1)
|
||||
[InlineData(0x3821FFFCu, -4)] // addi r1,r1,-4
|
||||
public void StackPointerUpdatesPreserveLrRelation(uint update, int expectedOffset)
|
||||
{
|
||||
Assert.Equal(new[] { expectedOffset }, DiscoverOffsets(
|
||||
0x7C2802A6u, // mflr r1
|
||||
update,
|
||||
0x7C2803A6u, // mtlr r1
|
||||
0x4E800020u)); // blr
|
||||
}
|
||||
|
||||
[Theory]
|
||||
[InlineData(0x7FE1FB78u)] // mr r1,r31
|
||||
[InlineData(0x383F0000u)] // addi r1,r31,0
|
||||
public void CopyingLrIntoR1PreservesReturnButInvalidatesOldStack(uint copy)
|
||||
{
|
||||
var prefix = new uint[]
|
||||
{
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x93E10008u, // stw r31,8(r1)
|
||||
copy,
|
||||
};
|
||||
Assert.Equal(new[] { 20 }, DiscoverOffsets(
|
||||
prefix.Concat(new uint[] { 0x7C2803A6u, 0x4E800020u }).ToArray()));
|
||||
Assert.Empty(DiscoverOffsets(prefix.Concat(new uint[]
|
||||
{
|
||||
0x80010008u, // lwz r0,8(r1): no longer the old stack slot
|
||||
0x7C0803A6u, // mtlr r0
|
||||
0x4E800020u,
|
||||
}).ToArray()));
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void StackPointerSelfMovePreservesSavedLr()
|
||||
{
|
||||
Assert.Equal(new[] { 20 }, DiscoverOffsets(
|
||||
0x7FE802A6u, // mflr r31
|
||||
0x3BFF0014u, // addi r31,r31,20
|
||||
0x93E10008u, // stw r31,8(r1)
|
||||
0x7C210B78u, // mr r1,r1
|
||||
0x80010008u, // lwz r0,8(r1)
|
||||
0x7C0803A6u, // mtlr r0
|
||||
0x4E800020u));
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void IncompleteInstructionListDoesNotInventFallthroughAcrossGap()
|
||||
{
|
||||
// Defensive incomplete-input test, not a production disassembly trace:
|
||||
// the missing instruction could overwrite r31 or branch elsewhere.
|
||||
// Address sorting alone does not establish a fallthrough edge.
|
||||
var instructions = new[]
|
||||
{
|
||||
PpcDecoder.Decode(0x81800000u, 0x7FE802A6u), // mflr r31
|
||||
PpcDecoder.Decode(0x81800008u, 0x3BFF0014u), // addi r31,r31,20
|
||||
PpcDecoder.Decode(0x8180000Cu, 0x7FE803A6u), // mtlr r31
|
||||
PpcDecoder.Decode(0x81800010u, 0x4E800020u), // blr
|
||||
};
|
||||
|
||||
Assert.Empty(ContinuationPlanner.DiscoverLrRelativeIndirectJumpOffsets(instructions));
|
||||
}
|
||||
|
||||
private static uint AddiR31(int offset) => 0x3BFF0000u | (uint)(offset & 0xFFFF);
|
||||
|
||||
private static int[] DiscoverOffsets(params uint[] words)
|
||||
{
|
||||
const uint entry = 0x81800000u;
|
||||
var memory = new byte[words.Length * 4];
|
||||
for (var i = 0; i < words.Length; i++)
|
||||
{
|
||||
BinaryPrimitives.WriteUInt32BigEndian(memory.AsSpan(i * 4, 4), words[i]);
|
||||
}
|
||||
|
||||
var range = AddressRange.FromStartAndSize(entry, (uint)memory.Length);
|
||||
var image = new ProgramImage(memory, range, range, default, "lr-continuation-test", entry);
|
||||
using var disassembler = new PpcDisassembler();
|
||||
// Use the production reachable-instruction traversal and ordering,
|
||||
// rather than handing the planner an artificial execution trace.
|
||||
var instructions = disassembler.DisassembleFunction(
|
||||
image, entry, maxInstructions: words.Length + 1, maxBytes: memory.Length);
|
||||
|
||||
return ContinuationPlanner.DiscoverLrRelativeIndirectJumpOffsets(instructions)
|
||||
.Distinct().OrderBy(offset => offset).ToArray();
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user