-int32_t svcCreateThread(int32_t* thread, void *(*entrypoint)(void*), void* arg, void* stack_top, int32_t thread_priority, int32_t processor_id);
-int32_t svcWaitSynchronization(int32_t handle, int64_t nanoseconds);
-void svcExitThread(void) __attribute__((noreturn));
+int32_t threadCreate(void *(*entrypoint)(void*), void* arg, size_t stack_size, int32_t prio, int32_t affinity, bool detached);
+int32_t threadJoin(int32_t thread, int64_t timeout_ns);
+void threadFree(int32_t thread);
+void threadExit(int32_t rc) __attribute__((noreturn));
+
+int32_t svcGetSystemInfo(int64_t* out, uint32_t type, int32_t param);
+
+int32_t svcCreateSemaphore(uint32_t *sem, int32_t initial_count, uint32_t max_count);
+int32_t svcReleaseSemaphore(int32_t *count, uint32_t sem, int32_t release_count);
+int32_t svcWaitSynchronization(uint32_t handle, int64_t nanoseconds);
+
+typedef int32_t LightLock;
+
+void LightLock_Init(LightLock* lock);
+void LightLock_Lock(LightLock* lock);
+int LightLock_TryLock(LightLock* lock);
+void LightLock_Unlock(LightLock* lock);
+
+int32_t APT_CheckNew3DS(bool *out);