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Implementation of Wii extension output via I2C #1654

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1 change: 1 addition & 0 deletions headers/addons/wiiext.h
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Expand Up @@ -382,6 +382,7 @@ class WiiExtensionInput : public GPAddon {
void setControllerAnalog(uint16_t controllerID, uint16_t analogID, uint32_t axisType);
void setControllerStickMode(uint16_t controllerID, uint16_t analogID, uint32_t axisType);
void setButtonState(bool buttonState, uint16_t buttonMask);
bool getButtonState(uint16_t buttonMask);
void queueAnalogChange(uint16_t analogInput, uint16_t analogValue, uint16_t lastAnalogValue);
void updateAnalogState();
void updateMotionState();
Expand Down
5 changes: 3 additions & 2 deletions lib/WiiExtension/CMakeLists.txt
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Expand Up @@ -7,9 +7,10 @@ add_library(WiiExtension
extensions/MotionPlusExtension.cpp
extensions/NunchuckExtension.cpp
extensions/TaikoExtension.cpp
extensions/TrainExtension.cpp
extensions/TurntableExtension.cpp
extensions/UDrawExtension.cpp
)
target_link_libraries(WiiExtension PUBLIC pico_stdlib PicoPeripherals CRC32)
target_link_libraries(WiiExtension PUBLIC pico_stdlib pico_i2c_slave PicoPeripherals CRC32)
target_include_directories(WiiExtension INTERFACE .)
target_include_directories(WiiExtension PUBLIC . PicoPeripherals CRC32)
target_include_directories(WiiExtension PUBLIC . pico_i2c_slave PicoPeripherals CRC32)
11 changes: 7 additions & 4 deletions lib/WiiExtension/README.md
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@@ -1,5 +1,8 @@
# WiiExtension
#
# Written by:
# Mike Parks
# <mikepparks@gmail.com>

Wii extension controller input/output handling for pico-sdk based projects via I2C.

Written by:
Mike Parks @mikepparks

Output encryption functionality based on work by @Santroller, @RobertDaleSmith, and marcan.
932 changes: 748 additions & 184 deletions lib/WiiExtension/WiiExtension.cpp
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88 changes: 54 additions & 34 deletions lib/WiiExtension/WiiExtension.h
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Expand Up @@ -6,6 +6,7 @@

#include "pico/stdlib.h"
#include "hardware/i2c.h"
#include "pico/i2c_slave.h"
#include "peripheral_i2c.h"

#include "extensions/Extensions.h"
Expand Down Expand Up @@ -99,6 +100,7 @@ typedef enum {
#define WII_CHECKSUM_MAGIC 0x55
#define WII_CALIBRATION_SIZE 0x10
#define WII_CALIBRATION_CHECKSUM_SIZE 0x02
#define WII_EXT_MEMORY_SIZE 256

static volatile bool WiiExtension_alarmFired;

Expand All @@ -116,47 +118,65 @@ static volatile bool WiiExtension_alarmFired;
#define TOUCH_BETWEEN_RANGE(val,beg,end) (((val) >= ((beg)-WII_GUITAR_TOUCHPAD_OVERLAP)) && ((val) < (end)))
#define WII_DECRYPT_BYTE(x) (((x) ^ 0x17) + 0x17)

class WiiExtension {
protected:
uint8_t address;
PeripheralI2C* i2c;
public:
int8_t extensionType = WII_EXTENSION_NONE;
int8_t dataType = WII_DATA_TYPE_0;

bool isReady = false;

// Constructor
WiiExtension() {}
WiiExtension(PeripheralI2C *i2cController, uint8_t addr);

// Methods
void begin();
void reset();
void start();
void poll();
static bool WiiExtension_isCryptoEnabled;
static uint8_t WiiExtension_extensionMemory[WII_EXT_MEMORY_SIZE];
static uint16_t WiiExtension_memoryCursor;
static bool WiiExtension_hasAddress;
static bool WiiExtension_firstRead;
static uint8_t WiiExtension_ft[8];
static uint8_t WiiExtension_sb[8];

void setI2C(PeripheralI2C *i2cController) { this->i2c = i2cController; }
void setAddress(uint8_t addr) { this->address = addr; }

ExtensionBase* getController() { return extensionController; };
private:
ExtensionBase *extensionController = NULL;
class WiiExtension {
protected:
uint8_t address;
PeripheralI2C* i2c;
public:
int8_t extensionType = WII_EXTENSION_NONE;
int8_t dataType = WII_DATA_TYPE_0;

// false = read input from connected device (default)
// true = output as extension
bool extensionMode = false;

bool isReady = false;

// Constructor
WiiExtension() {}
WiiExtension(PeripheralI2C *i2cController, uint8_t addr);

// Methods
void begin();
void reset();
void start();
void poll();

void setI2C(PeripheralI2C *i2cController) { this->i2c = i2cController; }
void setAddress(uint8_t addr) { this->address = addr; }
void setExtensionMode(bool extMode) { this->extensionMode = extMode; }

ExtensionBase* getController() { return extensionController; };
private:
ExtensionBase *extensionController = NULL;

#if WII_EXTENSION_DEBUG==true
uint8_t _lastRead[16] = {0xFF};
uint8_t _lastRead[16] = {0xFF};
#endif

int doI2CWrite(uint8_t *pData, int iLen);
int doI2CRead(uint8_t *pData, int iLen);
uint8_t doI2CTest();
void doI2CInit();
int doI2CWrite(uint8_t *pData, int iLen);
int doI2CRead(uint8_t *pData, int iLen);
uint8_t doI2CTest();
void doI2CInit();

void waitUntil_us(uint64_t us);
static void alarmIRQ();

void waitUntil_us(uint64_t us);
static void alarmIRQ();
bool isMotionPlus = false;
bool isExtension = false;

bool isMotionPlus = false;
bool isExtension = false;
static void i2cHandler(i2c_inst_t *i2c, i2c_slave_event_t event);
static void initCrypt(const uint8_t key[16]);
static void decrypt(uint8_t* data, uint8_t addr, uint8_t len);
static void encrypt(uint8_t* data, uint8_t addr, uint8_t len);
};

#endif
111 changes: 110 additions & 1 deletion lib/WiiExtension/extensions/ClassicExtension.cpp
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Expand Up @@ -207,4 +207,113 @@ void ClassicExtension::process(uint8_t *inputData) {
//printf("Joy1 X=%5d Y=%5d Joy2 X=%5d Y=%5d U=%1d D=%1d L=%1d R=%1d TL=%5d TR=%5d\n", analogState[WiiAnalogs::ANALOG_LEFT_X], analogState[WiiAnalogs::ANALOG_LEFT_Y], analogState[WiiAnalogs::ANALOG_RIGHT_X], analogState[WiiAnalogs::ANALOG_RIGHT_Y], directionalPad[WiiDirectionalPad::DIRECTION_UP], directionalPad[WiiDirectionalPad::DIRECTION_DOWN], directionalPad[WiiDirectionalPad::DIRECTION_LEFT], directionalPad[WiiDirectionalPad::DIRECTION_RIGHT], analogState[WiiAnalogs::ANALOG_TRIGGER_LEFT], analogState[WiiAnalogs::ANALOG_TRIGGER_RIGHT]);
//printf("A=%1d B=%1d X=%1d Y=%1d ZL=%1d ZR=%1d LT=%1d RT=%1d -=%1d H=%1d +=%1d\n", buttonA, buttonB, buttonX, buttonY, buttonZL, buttonZR, buttonLT, buttonRT, buttonMinus, buttonHome, buttonPlus);
#endif
}
}

uint8_t ClassicExtension::prepareOutput() {
uint16_t lx = 0;
uint16_t ly = 0;
uint16_t rx = 0;
uint16_t ry = 0;
uint16_t lt = 0;
uint16_t rt = 0;
// expect all source analog sticks at 16 bit and scale down
// expect all source analog triggers at 8 bit and scale down
if (getDataType() == WII_DATA_TYPE_1) {
lx = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_LEFT_X] * 0x3F) / 0xFFFF);
ly = (uint8_t)(0x3F - ((analogState[WiiAnalogs::WII_ANALOG_LEFT_Y] * 0x3F) / 0xFFFF));
rx = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_RIGHT_X] * 0x1F) / 0xFFFF);
ry = (uint8_t)(0x1F - ((analogState[WiiAnalogs::WII_ANALOG_RIGHT_Y] * 0x1F) / 0xFFFF));
lt = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_LEFT_TRIGGER] * 0x1F) / 0xFF);
rt = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_RIGHT_TRIGGER] * 0x1F) / 0xFF);

controllerData[0x00] = ((rx & 0x18) << 3) | (lx & 0x3F);
controllerData[0x01] = ((rx & 0x06) << 5) | (ly & 0x3F);
controllerData[0x02] = ((rx & 0x01) << 7) | ((lt & 0x0C) << 5) | (ry & 0x1F);
controllerData[0x03] = ((lt & 0x07) << 5) | (rt & 0x0F);
controllerData[0x04] = (1 |
((!(buttons[WiiButtons::WII_BUTTON_R] & 0x01) << 1)) |
((!(buttons[WiiButtons::WII_BUTTON_PLUS] & 0x01) << 2)) |
((!(buttons[WiiButtons::WII_BUTTON_HOME] & 0x01) << 3)) |
((!(buttons[WiiButtons::WII_BUTTON_MINUS] & 0x01) << 4)) |
((!(buttons[WiiButtons::WII_BUTTON_L] & 0x01) << 5)) |
((!(buttons[WiiButtons::WII_BUTTON_DOWN] & 0x01) << 6)) |
((!(buttons[WiiButtons::WII_BUTTON_RIGHT] & 0x01) << 7))
);
controllerData[0x05] = (
((!(buttons[WiiButtons::WII_BUTTON_UP] & 0x01)) << 0) |
((!(buttons[WiiButtons::WII_BUTTON_LEFT] & 0x01)) << 1) |
((!(buttons[WiiButtons::WII_BUTTON_ZR] & 0x01)) << 2) |
((!(buttons[WiiButtons::WII_BUTTON_X] & 0x01)) << 3) |
((!(buttons[WiiButtons::WII_BUTTON_A] & 0x01)) << 4) |
((!(buttons[WiiButtons::WII_BUTTON_Y] & 0x01)) << 5) |
((!(buttons[WiiButtons::WII_BUTTON_B] & 0x01)) << 6) |
((!(buttons[WiiButtons::WII_BUTTON_ZL] & 0x01)) << 7)
);
return 6;
} else if (getDataType() == WII_DATA_TYPE_2) {
lx = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_LEFT_X] * 0x3FF) / 0xFFFF);
ly = (uint8_t)(0x3F - ((analogState[WiiAnalogs::WII_ANALOG_LEFT_Y] * 0x3FF) / 0xFFFF));
rx = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_RIGHT_X] * 0x3FF) / 0xFFFF);
ry = (uint8_t)(0x1F - ((analogState[WiiAnalogs::WII_ANALOG_RIGHT_Y] * 0x3FF) / 0xFFFF));
lt = analogState[WiiAnalogs::WII_ANALOG_LEFT_TRIGGER];
rt = analogState[WiiAnalogs::WII_ANALOG_RIGHT_TRIGGER];

controllerData[0x00] = ((lx & 0x03FC) >> 2);
controllerData[0x01] = ((rx & 0x03FC) >> 2);
controllerData[0x02] = ((ly & 0x03FC) >> 2);
controllerData[0x03] = ((ry & 0x03FC) >> 2);
controllerData[0x04] = ((lx & 0x03) << 0) | ((rx & 0x03) << 2) | ((ly & 0x03) << 4) | ((ry & 0x03) << 6);
controllerData[0x05] = lt;
controllerData[0x06] = rt;
controllerData[0x07] = (1 |
((!(buttons[WiiButtons::WII_BUTTON_R] & 0x01) << 1)) |
((!(buttons[WiiButtons::WII_BUTTON_PLUS] & 0x01) << 2)) |
((!(buttons[WiiButtons::WII_BUTTON_HOME] & 0x01) << 3)) |
((!(buttons[WiiButtons::WII_BUTTON_MINUS] & 0x01) << 4)) |
((!(buttons[WiiButtons::WII_BUTTON_L] & 0x01) << 5)) |
((!(buttons[WiiButtons::WII_BUTTON_DOWN] & 0x01) << 6)) |
((!(buttons[WiiButtons::WII_BUTTON_RIGHT] & 0x01) << 7))
);
controllerData[0x08] = (
((!(buttons[WiiButtons::WII_BUTTON_UP] & 0x01)) << 0) |
((!(buttons[WiiButtons::WII_BUTTON_LEFT] & 0x01)) << 1) |
((!(buttons[WiiButtons::WII_BUTTON_ZR] & 0x01)) << 2) |
((!(buttons[WiiButtons::WII_BUTTON_X] & 0x01)) << 3) |
((!(buttons[WiiButtons::WII_BUTTON_A] & 0x01)) << 4) |
((!(buttons[WiiButtons::WII_BUTTON_Y] & 0x01)) << 5) |
((!(buttons[WiiButtons::WII_BUTTON_B] & 0x01)) << 6) |
((!(buttons[WiiButtons::WII_BUTTON_ZL] & 0x01)) << 7)
);
return 9;
} else if (getDataType() == WII_DATA_TYPE_3) {
controllerData[0x00] = analogState[WiiAnalogs::WII_ANALOG_LEFT_X];
controllerData[0x01] = analogState[WiiAnalogs::WII_ANALOG_RIGHT_X];
controllerData[0x02] = analogState[WiiAnalogs::WII_ANALOG_LEFT_Y];
controllerData[0x03] = analogState[WiiAnalogs::WII_ANALOG_RIGHT_Y];
controllerData[0x04] = analogState[WiiAnalogs::WII_ANALOG_LEFT_TRIGGER];
controllerData[0x05] = analogState[WiiAnalogs::WII_ANALOG_RIGHT_TRIGGER];
controllerData[0x06] = (1 |
((!(buttons[WiiButtons::WII_BUTTON_R] & 0x01) << 1)) |
((!(buttons[WiiButtons::WII_BUTTON_PLUS] & 0x01) << 2)) |
((!(buttons[WiiButtons::WII_BUTTON_HOME] & 0x01) << 3)) |
((!(buttons[WiiButtons::WII_BUTTON_MINUS] & 0x01) << 4)) |
((!(buttons[WiiButtons::WII_BUTTON_L] & 0x01) << 5)) |
((!(buttons[WiiButtons::WII_BUTTON_DOWN] & 0x01) << 6)) |
((!(buttons[WiiButtons::WII_BUTTON_RIGHT] & 0x01) << 7))
);
controllerData[0x07] = (
((!(buttons[WiiButtons::WII_BUTTON_UP] & 0x01)) << 0) |
((!(buttons[WiiButtons::WII_BUTTON_LEFT] & 0x01)) << 1) |
((!(buttons[WiiButtons::WII_BUTTON_ZR] & 0x01)) << 2) |
((!(buttons[WiiButtons::WII_BUTTON_X] & 0x01)) << 3) |
((!(buttons[WiiButtons::WII_BUTTON_A] & 0x01)) << 4) |
((!(buttons[WiiButtons::WII_BUTTON_Y] & 0x01)) << 5) |
((!(buttons[WiiButtons::WII_BUTTON_B] & 0x01)) << 6) |
((!(buttons[WiiButtons::WII_BUTTON_ZL] & 0x01)) << 7)
);
return 8;
} else {
}

return 0;
}
1 change: 1 addition & 0 deletions lib/WiiExtension/extensions/ClassicExtension.h
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Expand Up @@ -13,6 +13,7 @@ class ClassicExtension : public ExtensionBase {
void init(uint8_t dataType) override;
bool calibrate(uint8_t *calibrationData) override;
void process(uint8_t *inputData) override;
uint8_t prepareOutput() override;
};

#endif
112 changes: 111 additions & 1 deletion lib/WiiExtension/extensions/DrumExtension.cpp
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Expand Up @@ -29,4 +29,114 @@ void DrumExtension::process(uint8_t *inputData) {
// _lastRead[i] = inputData[i];
//}
#endif
}
}

uint8_t DrumExtension::prepareOutput() {
uint16_t lx = 0;
uint16_t ly = 0;
uint16_t rx = 0;
uint16_t ry = 0;
uint16_t lt = 0;
uint16_t rt = 0;
// expect all source analog sticks at 16 bit and scale down
// expect all source analog triggers at 8 bit and scale down
if (getDataType() == WII_DATA_TYPE_1) {
lx = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_LEFT_X] * 0x3F) / 0xFFFF);
ly = (uint8_t)(0x3F - ((analogState[WiiAnalogs::WII_ANALOG_LEFT_Y] * 0x3F) / 0xFFFF));
rx = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_RIGHT_X] * 0x1F) / 0xFFFF);
ry = (uint8_t)(0x1F - ((analogState[WiiAnalogs::WII_ANALOG_RIGHT_Y] * 0x1F) / 0xFFFF));
lt = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_LEFT_TRIGGER] * 0x1F) / 0xFF);
rt = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_RIGHT_TRIGGER] * 0x1F) / 0xFF);

controllerData[0x00] = 0xC0 | ((lx+1) & 0x3F);
controllerData[0x01] = 0xC0 | (ly & 0x3F);
controllerData[0x02] = 0xFF;
controllerData[0x03] = 0xFF;
controllerData[0x04] = (
((1 << 0)) |
((1 << 1)) |
((!(buttons[WiiButtons::WII_BUTTON_PLUS] & 0x01) << 2)) |
((1 << 3)) |
((!(buttons[WiiButtons::WII_BUTTON_MINUS] & 0x01) << 4)) |
((1 << 5)) |
((1 << 6)) |
((1 << 7))
);
controllerData[0x05] = (
((1 << 0)) |
((1 << 1)) |
((!(buttons[GuitarButtons::GUITAR_PEDAL] & 0x01) << 2)) |
((!(buttons[GuitarButtons::GUITAR_YELLOW] & 0x01) << 3)) |
((!(buttons[GuitarButtons::GUITAR_GREEN] & 0x01) << 4)) |
((!(buttons[GuitarButtons::GUITAR_BLUE] & 0x01) << 5)) |
((!(buttons[GuitarButtons::GUITAR_RED] & 0x01) << 6)) |
((!(buttons[GuitarButtons::GUITAR_ORANGE] & 0x01) << 7))
);
return 6;
} else if (getDataType() == WII_DATA_TYPE_2) {
lx = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_LEFT_X] * 0x3FF) / 0xFFFF);
ly = (uint8_t)(0x3F - ((analogState[WiiAnalogs::WII_ANALOG_LEFT_Y] * 0x3FF) / 0xFFFF));
rx = (uint8_t)((analogState[WiiAnalogs::WII_ANALOG_RIGHT_X] * 0x3FF) / 0xFFFF);
ry = (uint8_t)(0x1F - ((analogState[WiiAnalogs::WII_ANALOG_RIGHT_Y] * 0x3FF) / 0xFFFF));
lt = analogState[WiiAnalogs::WII_ANALOG_LEFT_TRIGGER];
rt = analogState[WiiAnalogs::WII_ANALOG_RIGHT_TRIGGER];

controllerData[0x00] = ((lx & 0x03FC) >> 2);
controllerData[0x01] = ((rx & 0x03FC) >> 2);
controllerData[0x02] = ((ly & 0x03FC) >> 2);
controllerData[0x03] = ((ry & 0x03FC) >> 2);
controllerData[0x04] = ((lx & 0x03) << 0) | ((rx & 0x03) << 2) | ((ly & 0x03) << 4) | ((ry & 0x03) << 6);
controllerData[0x05] = lt;
controllerData[0x06] = rt;
controllerData[0x07] = (1 |
((!(buttons[WiiButtons::WII_BUTTON_R] & 0x01) << 1)) |
((!(buttons[WiiButtons::WII_BUTTON_PLUS] & 0x01) << 2)) |
((!(buttons[WiiButtons::WII_BUTTON_HOME] & 0x01) << 3)) |
((!(buttons[WiiButtons::WII_BUTTON_MINUS] & 0x01) << 4)) |
((!(buttons[WiiButtons::WII_BUTTON_L] & 0x01) << 5)) |
((!(buttons[WiiButtons::WII_BUTTON_DOWN] & 0x01) << 6)) |
((!(buttons[WiiButtons::WII_BUTTON_RIGHT] & 0x01) << 7))
);
controllerData[0x08] = (
((!(buttons[WiiButtons::WII_BUTTON_UP] & 0x01)) << 0) |
((!(buttons[WiiButtons::WII_BUTTON_LEFT] & 0x01)) << 1) |
((!(buttons[WiiButtons::WII_BUTTON_ZR] & 0x01)) << 2) |
((!(buttons[WiiButtons::WII_BUTTON_X] & 0x01)) << 3) |
((!(buttons[WiiButtons::WII_BUTTON_A] & 0x01)) << 4) |
((!(buttons[WiiButtons::WII_BUTTON_Y] & 0x01)) << 5) |
((!(buttons[WiiButtons::WII_BUTTON_B] & 0x01)) << 6) |
((!(buttons[WiiButtons::WII_BUTTON_ZL] & 0x01)) << 7)
);
return 9;
} else if (getDataType() == WII_DATA_TYPE_3) {
controllerData[0x00] = analogState[WiiAnalogs::WII_ANALOG_LEFT_X];
controllerData[0x01] = analogState[WiiAnalogs::WII_ANALOG_RIGHT_X];
controllerData[0x02] = analogState[WiiAnalogs::WII_ANALOG_LEFT_Y];
controllerData[0x03] = analogState[WiiAnalogs::WII_ANALOG_RIGHT_Y];
controllerData[0x04] = analogState[WiiAnalogs::WII_ANALOG_LEFT_TRIGGER];
controllerData[0x05] = analogState[WiiAnalogs::WII_ANALOG_RIGHT_TRIGGER];
controllerData[0x06] = (1 |
((!(buttons[WiiButtons::WII_BUTTON_R] & 0x01) << 1)) |
((!(buttons[WiiButtons::WII_BUTTON_PLUS] & 0x01) << 2)) |
((!(buttons[WiiButtons::WII_BUTTON_HOME] & 0x01) << 3)) |
((!(buttons[WiiButtons::WII_BUTTON_MINUS] & 0x01) << 4)) |
((!(buttons[WiiButtons::WII_BUTTON_L] & 0x01) << 5)) |
((!(buttons[WiiButtons::WII_BUTTON_DOWN] & 0x01) << 6)) |
((!(buttons[WiiButtons::WII_BUTTON_RIGHT] & 0x01) << 7))
);
controllerData[0x07] = (
((!(buttons[WiiButtons::WII_BUTTON_UP] & 0x01)) << 0) |
((!(buttons[WiiButtons::WII_BUTTON_LEFT] & 0x01)) << 1) |
((!(buttons[WiiButtons::WII_BUTTON_ZR] & 0x01)) << 2) |
((!(buttons[WiiButtons::WII_BUTTON_X] & 0x01)) << 3) |
((!(buttons[WiiButtons::WII_BUTTON_A] & 0x01)) << 4) |
((!(buttons[WiiButtons::WII_BUTTON_Y] & 0x01)) << 5) |
((!(buttons[WiiButtons::WII_BUTTON_B] & 0x01)) << 6) |
((!(buttons[WiiButtons::WII_BUTTON_ZL] & 0x01)) << 7)
);
return 8;
} else {
}

return 0;
}
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