int
spectrum_frame( void )
{
libspectrum_dword frame_length;
int error;
/* Reduce the t-state count of both the processor and all the events
scheduled to occur. Done slightly differently if RZX playback is
occurring */
frame_length = rzx_playback ? tstates
: machine_current->timings.tstates_per_frame;
error = event_frame( frame_length ); if( error ) return error;
tstates -= frame_length;
if( z80.interrupts_enabled_at >= 0 )
z80.interrupts_enabled_at -= frame_length;
if( sound_enabled ) sound_frame();
if( display_frame() ) return 1;
if( profile_active ) profile_frame( frame_length );
printer_frame();
/* Add an interrupt unless they're being generated by .rzx playback */
if( !rzx_playback ) {
if( event_add( machine_current->timings.tstates_per_frame,
spectrum_frame_event ) ) return 1;
}
loader_frame( frame_length );
return 0;
}
void AY8910Update(int chip, int16_t** buffer, int nNumSamples)
{
AY8910UpdateSetCycles();
sound_generator_framesiz = nNumSamples;
g_ppSoundBuffers = buffer;
sound_frame(&g_AY8910[chip]);
}
void eo_tick( void )
{
static int j, borrow;
if ( !nosound )
{
sound_frame();
}
if ( zx81_stop )
{
//AccurateUpdateDisplay( false );
return;
}
// mouse.x = Controls::Mouse->CursorPos.x;
// mouse.y = Screen->Height - Controls::Mouse->CursorPos.y;
fps++;
frametstates = 0;
j = zx81.single_step ? 1 : ( machine.tperframe + borrow );
if ( zx81.machine != MACHINESPEC48 && j != 1 )
{
j += ( zx81.speedup * machine.tperframe ) / machine.tperscanline;
}
while ( j > 0 && !zx81_stop )
{
j -= machine.do_scanline();
AccurateDraw();
}
if ( !zx81_stop )
{
borrow = j;
}
}
/* rets zero if we want to exit the emulation (i.e. exit track) */
int do_interrupt(void)
{
static int count=0;
static int silent_for=0;
count++;
if(count>=4) count=0;
if(!playing || paused)
usleep(20000);
else
{
/* check for fade needed */
if(!done_fade && stopafter && tunetime.min*60+tunetime.sec>=stopafter)
{
done_fade=1;
sound_start_fade(fadetime);
}
/* incr time */
tunetime.subsecframes++;
if(tunetime.subsecframes>=50)
{
tunetime.subsecframes=0;
tunetime.sec++;
if(tunetime.sec>=60)
{
tunetime.sec=0;
tunetime.min++;
}
}
/* play frame, and stop if it's been silent for a while */
if(!sound_frame(count==0 || !highspeed))
silent_for++;
else
silent_for=0;
if(silent_for>=silent_max)
{
silent_for=0;
ui_change_notify();
/* do next track, or file, or just stop */
/* if play_one_track_only is set, then finish now */
if (play_one_track_only)
{
want_quit=1;
return(0);
}
ay_track++;
if(ay_track>=aydata.num_tracks)
{
ay_track=0;
ay_file++;
if(ay_file>=ay_num_files)
{
/* return to first file/track (except for non-UI,
* to save any pointless reload), and stop.
*/
if(use_ui)
ay_file=ay_track=0;
else
ay_file--,ay_track=aydata.num_tracks-1;
playing=0;
}
}
return(0);
}
}
return(ui_frame());
}
