static frame_time_t machdep_amigaos4_gettimebase (void)
{
uae_u32 result = 0;
uint32 machine = MACHINETYPE_UNKNOWN;
GetMachineInfoTags(GMIT_Machine, &machine, TAG_DONE);
if (machine == MACHINETYPE_AMIGAONE) {
struct EClockVal etime;
result = ReadEClock (&etime);
}
return result;
}
int osdep_inithrtimer (void)
{
static int done = 0;
if (!done) {
struct EClockVal etime;
timebase = ReadEClock (&etime);
write_log ("EClock frequency:%.6f MHz\n", timebase/1e6);
done = 1;
}
return 1;
}
BOOL
PreTimer( struct AHIPrivAudioCtrl* audioctrl )
{
ULONG pretimer_period; // Clocks between PreTimer calls
ULONG mixer_time; // Clocks spent in mixer
pretimer_period = audioctrl->ahiac_Timer.EntryTime.ev_lo;
ReadEClock( &audioctrl->ahiac_Timer.EntryTime );
pretimer_period = audioctrl->ahiac_Timer.EntryTime.ev_lo - pretimer_period;
mixer_time = pretimer_period - ( audioctrl->ahiac_Timer.ExitTime.ev_lo
- audioctrl->ahiac_Timer.EntryTime.ev_lo );
if( pretimer_period != 0 )
{
audioctrl->ahiac_UsedCPU = ( mixer_time << 8 ) / pretimer_period;
}
return ( audioctrl->ahiac_UsedCPU <= audioctrl->ahiac_MaxCPU );
}
void
PostTimer( struct AHIPrivAudioCtrl* audioctrl )
{
ReadEClock( &audioctrl->ahiac_Timer.ExitTime );
}
