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Add spurious interrupt support.

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Thomas Harte
2022-06-15 11:00:27 -04:00
parent bd056973ba
commit 24823233ff
1 changed files with 5 additions and 1 deletions
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6
Processors/68000Mk2/Implementation/68000Mk2Implementation.hpp
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@@ -595,8 +595,12 @@ void Processor<BusHandler, dtack_is_implicit, permit_overrun, signal_will_perfor
if(vpa_) { if(vpa_) {
temporary_value_.b = uint8_t(InstructionSet::M68k::Exception::InterruptAutovectorBase - 1 + captured_interrupt_level_); temporary_value_.b = uint8_t(InstructionSet::M68k::Exception::InterruptAutovectorBase - 1 + captured_interrupt_level_);
} }
if(berr_) {
temporary_value_.b = uint8_t(InstructionSet::M68k::Exception::SpuriousInterrupt);
}
// TODO: if bus error is set, treat interrupt as spurious. // TODO: check documentation for other potential interrupt outcomes;
// and presumably spin here if DTACK isn't implicit.
IdleBus(3); // n- n IdleBus(3); // n- n