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Slow PIT: Fix mode 3 (square wave) operation, fixes Night Hunter sound effects, fixes #4704.

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OBattler
2025-07-09 04:08:18 +02:00
parent bec9a8ecfb
commit e662f27f5f
1 changed files with 4 additions and 3 deletions
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7
src/pit.c
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@@ -247,7 +247,7 @@ ctr_tick(ctr_t *ctr, void *priv)
ctr_decrease_count(ctr); ctr_decrease_count(ctr);
} else } else
ctr->count -= (ctr->newcount ? 1 : 2); ctr->count -= (ctr->newcount ? 1 : 2);
if (ctr->count < 0) { if (ctr->count == 0) {
ctr_set_out(ctr, 0, pit); ctr_set_out(ctr, 0, pit);
ctr_load_count(ctr); ctr_load_count(ctr);
ctr->state = 3; ctr->state = 3;
@@ -266,7 +266,7 @@ ctr_tick(ctr_t *ctr, void *priv)
ctr_decrease_count(ctr); ctr_decrease_count(ctr);
} else } else
ctr->count -= (ctr->newcount ? 3 : 2); ctr->count -= (ctr->newcount ? 3 : 2);
if (ctr->count < 0) { if (ctr->count == 0) {
ctr_set_out(ctr, 1, pit); ctr_set_out(ctr, 1, pit);
ctr_load_count(ctr); ctr_load_count(ctr);
ctr->state = 2; ctr->state = 2;
@@ -334,10 +334,11 @@ ctr_set_state_1(ctr_t *ctr)
{ {
uint8_t mode = (ctr->m & 0x03); uint8_t mode = (ctr->m & 0x03);
int do_reload = !!ctr->incomplete || (mode == 0) || (ctr->state == 0); int do_reload = !!ctr->incomplete || (mode == 0) || (ctr->state == 0);
int disables_counting = (mode != 1) && !ctr->gate;
ctr->incomplete = 0; ctr->incomplete = 0;
if (do_reload) if (do_reload && !disables_counting)
ctr->state = 1 + ((mode == 1) << 2); ctr->state = 1 + ((mode == 1) << 2);
} }