static uint64 GetMicroseconds()
{
static bool time_init = false;
if (!time_init) {
time_init = true;
Time_Initialize();
}
uint64 counter;
uint64 tick;
QueryPerformanceCounter((LARGE_INTEGER*) &counter);
tick = UTGetTickCount64();
// unfortunately, QueryPerformanceCounter is not guaranteed
// to be monotonic. Make it so.
int64 ret = (int64)(((int64)counter - (int64)startPerformanceCounter) / counterPerMicrosecond);
// if the QPC clock leaps more than one second off GetTickCount64()
// something is seriously fishy. Adjust QPC to stay monotonic
int64 tick_diff = tick - startGetTickCount;
if (abs64(ret / 100000 - tick_diff / 100) > 10) {
startPerformanceCounter -= (uint64)((int64)(tick_diff * 1000 - ret) * counterPerMicrosecond);
ret = (int64)((counter - startPerformanceCounter) / counterPerMicrosecond);
}
return ret;
}
void ApplicationEntryPoint()
{
CLR_SETTINGS clrSettings;
InitCRuntime();
CPU_Initialize();
Time_Initialize();
HAL_Initialize();
// CLR entry point
memset(&clrSettings, 0, sizeof(CLR_SETTINGS));
clrSettings.MaxContextSwitches = 50;
clrSettings.WaitForDebugger = false;
clrSettings.EnterDebuggerLoopAfterExit = true;
ClrStartup( clrSettings );
HAL_Uninitialize();
Time_Uninitialize();
#if !defined(BUILD_RTM)
debug_printf( "Exiting.\r\n" );
CPU_Halt();
#else
CPU_Reset();
#endif
}
void HAL_Initialize()
{
HAL_CONTINUATION::InitializeList();
HAL_COMPLETION ::InitializeList();
Events_Initialize();
CPU_GPIO_Initialize();
CPU_SPI_Initialize();
HAL_Time_Initialize();
Time_Initialize();
ENABLE_INTERRUPTS();
BlockStorageList::Initialize();
BlockStorage_AddDevices();
BlockStorageList::InitializeDevices();
FS_Initialize();
FileSystemVolumeList::Initialize();
FS_AddVolumes();
FileSystemVolumeList::InitializeVolumes();
CPU_InitializeCommunication();
LCD_Initialize();
I2C_Initialize();
PalEvent_Initialize();
Gesture_Initialize();
Ink_Initialize();
TimeService_Initialize();
/*
other drivers init
*/
}