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Actually, I think the 6850 is active low for interrupts.

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Thomas Harte 2019-10-24 22:37:53 -04:00
parent 7a2de47f58
commit 51b4b5551d
1 changed files with 1 additions and 1 deletions
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2
Machines/AtariST/AtariST.cpp
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@ -609,7 +609,7 @@ class ConcreteMachine:
*/ */
mfp_->set_port_input( mfp_->set_port_input(
0x80 | 0x80 |
((keyboard_acia_->get_interrupt_line() || midi_acia_->get_interrupt_line()) ? 0x10 : 0x00) ((keyboard_acia_->get_interrupt_line() || midi_acia_->get_interrupt_line()) ? 0x0 : 0x10) // Interrupts are active low.
); );
} }
}; };