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More Pro Audio Spectrum 16 work, closes #4313.

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This commit is contained in:
OBattler
2024-04-04 03:09:35 +02:00
parent fcbbae181f
commit f93692a045
5 changed files with 322 additions and 99 deletions
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28
src/pit_fast.c
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@@ -133,7 +133,7 @@ pitf_read_timer(ctrf_t *ctr)
read = 0;
if (read > 0x10000)
read = 0x10000;
if (ctr->m == 3)
if ((ctr->m == 3) && ctr->using_timer)
read <<= 1;
return read;
}
@@ -191,6 +191,8 @@ pitf_ctr_load(ctrf_t *ctr, void *priv)
ctr->count = l;
if (ctr->using_timer)
timer_set_delay_u64(&ctr->timer, (uint64_t) (((l + 1) >> 1) * ctr->pit_const));
else
ctr->newcount = (l & 1);
pitf_ctr_set_out(ctr, 1, pit);
ctr->thit = 0;
}
@@ -269,6 +271,8 @@ pitf_set_gate_no_timer(ctrf_t *ctr, int gate, void *priv)
ctr->count = l;
if (ctr->using_timer)
timer_set_delay_u64(&ctr->timer, (uint64_t) (((l + 1) >> 1) * ctr->pit_const));
else
ctr->newcount = (l & 1);
pitf_ctr_set_out(ctr, 1, pit);
ctr->thit = 0;
}
@@ -330,14 +334,23 @@ pitf_over(ctrf_t *ctr, void *priv)
case 3: /*Square wave mode*/
if (ctr->out) {
pitf_ctr_set_out(ctr, 0, pit);
ctr->count += (l >> 1);
if (ctr->using_timer)
if (ctr->using_timer) {
ctr->count += (l >> 1);
timer_advance_u64(&ctr->timer, (uint64_t) ((l >> 1) * ctr->pit_const));
} else {
ctr->count += l;
ctr->newcount = (l & 1);
}
} else {
pitf_ctr_set_out(ctr, 1, pit);
ctr->count += ((l + 1) >> 1);
if (ctr->using_timer)
if (ctr->using_timer) {
ctr->count += (l >> 1);
timer_advance_u64(&ctr->timer, (uint64_t) (((l + 1) >> 1) * ctr->pit_const));
} else {
ctr->count += l;
ctr->newcount = (l & 1);
}
}
#if 0
if (!t)
@@ -631,7 +644,12 @@ pitf_ctr_clock(void *data, int counter_id)
if (ctr->using_timer)
return;
ctr->count -= (ctr->m == 3) ? 2 : 1;
if ((ctr->m == 3) && ctr->newcount) {
ctr->count -= ctr->out ? 1 : 3;
ctr->newcount = 0;
} else
ctr->count -= (ctr->m == 3) ? 2 : 1;
if (!ctr->count)
pitf_over(ctr, pit);
}