System Samples

// Button types
MSG_DIALOG_BTN_OK          // OK button
MSG_DIALOG_BTN_TYPE_YESNO  // Yes and No buttons

// Button responses in callback
MSG_DIALOG_BTN_OK       // User pressed OK
MSG_DIALOG_BTN_YES      // User pressed Yes  
MSG_DIALOG_BTN_NO       // User pressed No
MSG_DIALOG_BTN_ESCAPE   // User pressed Cancel/Back
MSG_DIALOG_BTN_NONE     // Dialog closed without button press

// Additional flags
MSG_DIALOG_DISABLE_CANCEL_ON    // Disable cancel button
MSG_DIALOG_DEFAULT_CURSOR_YES   // Default to Yes
MSG_DIALOG_DEFAULT_CURSOR_NO    // Default to No

SYSUTIL_EXIT_GAME       // User pressed PS button -> Quit Game
SYSUTIL_DRAW_BEGIN      // System UI appearing (pause rendering)
SYSUTIL_DRAW_END        // System UI closed (resume rendering)
SYSUTIL_MENU_OPEN       // XMB menu opened
SYSUTIL_MENU_CLOSE      // XMB menu closed

#include <sysutil/osk.h>

// Setup OSK parameters
oskDialog osk;
oskCallbackReturnParam result;
oskParam params;

// Initialize OSK parameters
oskSetInitialInputDevice(&params, OSK_DEVICE_PAD);
oskSetKeyLayout(&params, OSK_LAYOUT_QWERTY);
oskSetLayoutMode(&params, OSK_LAYOUTMODE_HORIZONTAL);
oskSetInitialKeyLayout(&params, OSK_INITIAL_PANEL_DEFAULT);

// Set text limits
oskSetLimitLength(&params, 64);  // Max 64 characters

// Open OSK
oskLoadAsync(&osk, &params, NULL);

// Wait for OSK to load and run
while(osk_status != OSK_DONE) {
    sysUtilCheckCallback();
    oskUpdate(&osk);
    flip();
}

// Get entered text
oskGetInputText(&result);
printf("User entered: %s\n", result.pResultString);

// Cleanup
oskUnloadAsync(&osk);

/dev_hdd0/home/<user>/savedata/<GAMECODE>/
├── PARAM.SFO        # Save metadata
├── ICON0.PNG        # Save icon (320x176)
├── PIC1.PNG         # Background image (optional)
└── <datafiles>      # Your save files

#include <sysutil/save.h>

// Save data parameters
sysSaveListSettings listSettings;
sysSaveStatParams statParams;
sysSaveSetBuffer setBuffer;

// Create save directory
char dirName[] = "GAMEDATA01";
char title[] = "My Game Save";
char subtitle[] = "Level 5 - Castle";

sysSaveAutoLoad2(
    SYS_SAVEDATA_VERSION_CURRENT,
    dirName,
    SYS_SAVEDATA_ERRDIALOG_ALWAYS,
    &setBuffer,
    save_data_callback,
    &statParams,
    NULL
);

// Save callback handles actual I/O
void save_data_callback(
    sysSaveResult *result,
    sysSaveStatParams *stat,
    void *userdata
)
{
    // Write save data
    FILE *f = fopen(stat->filePath, "w");
    fwrite(my_save_data, size, 1, f);
    fclose(f);
    
    result->result = SYS_SAVEDATA_CBRESULT_OK_NEXT;
}

#include <ppu-types.h>
#include <sys/thread.h>
#include <sys/synchronization.h>

// Thread entry point
void thread_func(u64 arg)
{
    printf("Thread started with arg: %llu\n", arg);
    
    // Do work
    
    sysThreadExit(0);
}

int main()
{
    sys_ppu_thread_t thread_id;
    u64 arg = 123;
    
    // Create thread
    sysThreadCreate(
        &thread_id,
        thread_func,
        arg,
        1000,              // Priority (lower = higher priority)
        16*1024,           // Stack size
        THREAD_JOINABLE,   // Flags
        "my_thread"
    );
    
    // Wait for thread to complete
    u64 exit_code;
    sysThreadJoin(thread_id, &exit_code);
    
    printf("Thread exited with code: %llu\n", exit_code);
    return 0;
}

sys_mutex_t mutex;
sys_mutex_attribute_t mutex_attr;

// Create mutex
sysMutexAttributeInitialize(&mutex_attr);
sysMutexCreate(&mutex, &mutex_attr);

// Use mutex
sysMutexLock(mutex, 0);  // 0 = wait forever
// ... critical section ...
sysMutexUnlock(mutex);

// Cleanup
sysMutexDestroy(mutex);

sys_cond_t cond;
sys_cond_attribute_t cond_attr;

// Create condition variable
sysCondAttributeInitialize(&cond_attr);
sysCondCreate(&cond, mutex, &cond_attr);

// Wait for condition
sysMutexLock(mutex, 0);
while(!condition_met) {
    sysCondWait(cond, 0);  // Releases mutex while waiting
}
sysMutexUnlock(mutex);

// Signal condition
sysMutexLock(mutex, 0);
condition_met = 1;
sysCondSignal(cond);  // Wake one waiter
// or
sysCondBroadcast(cond);  // Wake all waiters
sysMutexUnlock(mutex);

// Cleanup
sysCondDestroy(cond);

cd samples/sys
make

cd samples/sys/msgdialog
make