static void cclimber_play_sample(running_machine &machine, int start,int freq,int volume)
{
int len;
int romlen = machine.region("samples")->bytes();
const UINT8 *rom = machine.region("samples")->base();
device_t *samples = machine.device("samples");
if (!rom) return;
/* decode the rom samples */
len = 0;
while (start + len < romlen && rom[start+len] != 0x70)
{
int sample;
sample = (rom[start + len] & 0xf0) >> 4;
samplebuf[2*len] = SAMPLE_CONV4(sample) * volume / 31;
sample = rom[start + len] & 0x0f;
samplebuf[2*len + 1] = SAMPLE_CONV4(sample) * volume / 31;
len++;
}
sample_start_raw(samples,0,samplebuf,2 * len,freq,0);
}
static void cclimber_play_sample(int start,int freq,int volume)
{
int len;
const UINT8 *rom = memory_region(REGION_SOUND1);
if (!rom) return;
/* decode the rom samples */
len = 0;
while (start + len < memory_region_length(REGION_SOUND1) && rom[start+len] != 0x70)
{
int sample;
sample = (rom[start + len] & 0xf0) >> 4;
samplebuf[2*len] = SAMPLE_CONV4(sample) * volume / 31;
sample = rom[start + len] & 0x0f;
samplebuf[2*len + 1] = SAMPLE_CONV4(sample) * volume / 31;
len++;
}
sample_start_raw(0,samplebuf,2 * len,freq,0);
}
void targ_sh_start(void)
{
tone_pointer=0;
tone_offset=0;
tone_active=0;
sound_a_freq = 0x00;
sample_set_volume(3,0);
sample_start_raw(3,waveform1,32,1000,1);
}
void polyplay_play_channel2(int data)
{
if (data) {
freq2 = 2457600 / 16 / data / 8;
sample_set_volume(1, channel_playing2 * 1.0);
sample_start_raw(1, backgroundwave, ARRAY_LENGTH(backgroundwave), sizeof(backgroundwave)*freq2,1);
}
else {
sample_stop(0);
sample_stop(1);
}
}
void play_channel1(int data)
{
if (data) {
freq1 = 2457600 / 16 / data / 8;
sample_set_volume(0, channel_playing1 * 1.0);
sample_start_raw(0, backgroundwave, sizeof(backgroundwave)/2, sizeof(backgroundwave)*freq1,1);
}
else {
sample_stop(0);
sample_stop(1);
}
}
static WRITE8_HANDLER( pbillian_sample_trigger_w )
{
int start,end;
start = data << 7;
/* look for end of sample marker */
end = start;
while (end < 0x8000 && samplebuf[end] != (0xff^0x80))
end++;
sample_start_raw(0, samplebuf + start, end - start, 5000, 0); /* 5khz ? */
}
static WRITE8_HANDLER( pbillian_sample_trigger_w )
{
running_device *samples = space->machine->device("samples");
int start,end;
start = data << 7;
/* look for end of sample marker */
end = start;
while (end < 0x8000 && samplebuf[end] != (0xff^0x80))
end++;
sample_start_raw(samples, 0, samplebuf + start, end - start, 5000, 0); // 5khz ?
}
void polyplay_play_channel2(running_machine *machine, int data)
{
running_device *samples = devtag_get_device(machine, "samples");
if (data) {
freq2 = 2457600 / 16 / data / 8;
sample_set_volume(samples, 1, channel_playing2 * 1.0);
sample_start_raw(samples, 1, backgroundwave, ARRAY_LENGTH(backgroundwave), sizeof(backgroundwave)*freq2,1);
}
else {
sample_stop(samples, 0);
sample_stop(samples, 1);
}
}
void polyplay_play_channel1(running_machine *machine, int data)
{
device_t *samples = machine->device("samples");
if (data) {
freq1 = 2457600 / 16 / data / 8;
sample_set_volume(samples, 0, channel_playing1 * 1.0);
sample_start_raw(samples, 0, backgroundwave, ARRAY_LENGTH(backgroundwave), sizeof(backgroundwave)*freq1,1);
}
else {
sample_stop(samples, 0);
sample_stop(samples, 1);
}
}
static void common_audio_start(running_machine *machine, int freq)
{
device_t *samples = machine->device("samples");
max_freq = freq;
tone_freq = 0;
tone_active = 0;
sample_set_volume(samples, 3, 0);
sample_start_raw(samples, 3, sine_wave, 32, 1000, 1);
state_save_register_global(machine, port_1_last);
state_save_register_global(machine, port_2_last);
state_save_register_global(machine, tone_freq);
state_save_register_global(machine, tone_active);
}
void senjyo_sh_start(void)
{
int i;
/* z80 ctc init */
ctc_intf.baseclock = Machine->drv->cpu[1].cpu_clock;
z80ctc_init (0, &ctc_intf);
/* z80 pio init */
z80pio_init (0, &pio_intf);
_single = (INT16 *)auto_malloc(SINGLE_LENGTH*2);
for (i = 0;i < SINGLE_LENGTH;i++) /* freq = ctc2 zco / 8 */
_single[i] = ((i/SINGLE_DIVIDER)&0x01)*127*256;
/* CTC2 single tone generator */
sample_set_volume(0,0);
sample_start_raw(0,_single,SINGLE_LENGTH,single_rate,1);
timer_pulse(TIME_IN_HZ(Machine->refresh_rate), 0, senjyo_sh_update);
}
void senjyo_sh_start(void)
{
int i;
/* z80 ctc init */
ctc_intf.baseclock = cpunum_get_clock(1);
z80ctc_init (0, &ctc_intf);
/* z80 pio init */
z80pio_init (0, &pio_intf);
_single = (INT16 *)auto_malloc(SINGLE_LENGTH*2);
for (i = 0;i < SINGLE_LENGTH;i++) /* freq = ctc2 zco / 8 */
_single[i] = ((i/SINGLE_DIVIDER)&0x01)*127*256;
/* CTC2 single tone generator */
sample_set_volume(0,0);
sample_start_raw(0,_single,SINGLE_LENGTH,single_rate,1);
timer_pulse(video_screen_get_frame_period(Machine->primary_screen), NULL, 0, senjyo_sh_update);
}
