void
sound_beeper( int on )
{
static int beeper_ampl[] = { 0, AMPL_TAPE, AMPL_BEEPER, AMPL_BEEPER+AMPL_TAPE };
int val;
int ampl;
if( !sound_enabled )
return;
/* Timex machines have no loading noise */
if( tape_is_playing() &&
( !settings_current.sound_load || machine_current->timex ) )
on = on & 0x02;
ampl = beeper_ampl[on];
val = -beeper_ampl[3] + ampl*2;
blip_synth_update( left_beeper_synth, tstates, val );
if( sound_stereo ) {
blip_synth_update( right_beeper_synth, tstates, val );
}
}
const char*
menu_tape_detail( void )
{
if( !tape_present() ) return "Not inserted";
if( tape_is_playing() ) return "Playing";
else return "Stopped";
}
void
sound_unpause( void )
{
/* No sound if fastloading in progress */
if( settings_current.fastload && tape_is_playing() )
return;
sound_init( settings_current.sound_device );
}
void
loader_detect_loader( void )
{
libspectrum_dword tstates_diff = tstates - last_tstates_read;
libspectrum_byte b_diff = z80.bc.b.h - last_b_read;
last_tstates_read = tstates;
last_b_read = z80.bc.b.h;
if( settings_current.detect_loader ) {
if( tape_is_playing() ) {
if( tstates_diff > 1000 || ( b_diff != 1 && b_diff != 0 &&
b_diff != 0xff ) ) {
successive_reads++;
if( successive_reads >= 2 ) {
tape_stop();
}
} else {
successive_reads = 0;
}
} else {
if( tstates_diff <= 500 && ( b_diff == 1 || b_diff == 0xff ) ) {
successive_reads++;
if( successive_reads >= 10 ) {
tape_do_play( 1 );
}
} else {
successive_reads = 0;
}
}
} else {
successive_reads = 0;
}
if( settings_current.accelerate_loader && tape_is_playing() )
check_for_acceleration();
}
void
sound_beeper( int on )
{
static int beeper_ampl[] = { 0, AMPL_TAPE, AMPL_BEEPER,
AMPL_BEEPER+AMPL_TAPE };
int val;
if( !sound_enabled ) return;
if( tape_is_playing() ) {
/* Timex machines have no loading noise */
if( !settings_current.sound_load || machine_current->timex ) on = on & 0x02;
} else {
/* ULA book says that MIC only isn't enough to drive the speaker as output
voltage is below the 1.4v threshold */
if( on == 1 ) on = 0;
}
val = -beeper_ampl[3] + beeper_ampl[on]*2;
blip_synth_update( left_beeper_synth, tstates, val );
if( sound_stereo_ay != SOUND_STEREO_AY_NONE )
blip_synth_update( right_beeper_synth, tstates, val );
}