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Slow PIT: convert BCD counts to binary when passing them to the speaker.

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OBattler
2025-07-08 09:19:02 +02:00
parent 773ebf6254
commit 283ba78090
1 changed files with 12 additions and 2 deletions
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14
src/pit.c
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@@ -358,8 +358,18 @@ ctr_load(ctr_t *ctr)
else
ctr_set_state_1(ctr);
if (ctr->load_func != NULL)
ctr->load_func(ctr->m, ctr->l ? ctr->l : 0x10000);
if (ctr->load_func != NULL) {
uint32_t count = ctr->l ? ctr->l : 0x10000;
if (ctr->bcd) {
uint32_t bcd_count = (((count >> 16) & 0xf) * 10000) |
(((count >> 12) & 0xf) * 1000 ) |
(((count >> 8 ) & 0xf) * 100 ) |
(((count >> 4 ) & 0xf) * 10 ) |
(count & 0xf);
ctr->load_func(ctr->m, bcd_count);
} else
ctr->load_func(ctr->m, ctr->l ? ctr->l : 0x10000);
}
pit_log("Counter loaded, state = %i, gate = %i, latch = %i\n", ctr->state, ctr->gate, ctr->latch);
}