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Attempted PIC fix.

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This commit is contained in:
OBattler
2023-10-01 17:26:44 +02:00
parent f1df24d036
commit b03df6bdd1
1 changed files with 18 additions and 14 deletions
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32
src/pic.c
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@@ -223,25 +223,30 @@ find_best_interrupt(pic_t *dev)
static __inline void static __inline void
pic_update_pending_xt(void) pic_update_pending_xt(void)
{ {
if (find_best_interrupt(&pic) != -1) { if (!(pic.interrupt & 0x20)) {
latched++; if (find_best_interrupt(&pic) != -1) {
if (latched == 1) latched++;
timer_on_auto(&pic_timer, 0.35); if (latched == 1)
} else if (latched == 0) timer_on_auto(&pic_timer, 0.35);
pic.int_pending = 0; } else if (latched == 0)
pic.int_pending = 0;
}
} }
static __inline void static __inline void
pic_update_pending_at(void) pic_update_pending_at(void)
{ {
pic2.int_pending = (find_best_interrupt(&pic2) != -1); if (!(pic2.interrupt & 0x20)) {
pic2.int_pending = (find_best_interrupt(&pic2) != -1);
if (pic2.int_pending) if (pic2.int_pending)
pic.irr |= (1 << pic2.icw3); pic.irr |= (1 << pic2.icw3);
else else
pic.irr &= ~(1 << pic2.icw3); pic.irr &= ~(1 << pic2.icw3);
}
pic.int_pending = (find_best_interrupt(&pic) != -1); if (!(pic.interrupt & 0x20))
pic.int_pending = (find_best_interrupt(&pic) != -1);
} }
static void static void
@@ -755,8 +760,7 @@ picint_common(uint16_t num, int level, int set, uint8_t *irq_state)
} }
} }
if (!(pic.interrupt & 0x20) && !(pic2.interrupt & 0x20)) update_pending();
update_pending();
} }
static uint8_t static uint8_t