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Corrects CHK flags.

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This commit is contained in:
Thomas Harte 2019-06-28 19:48:53 -04:00
parent 241d29ff7c
commit 17666bc059
1 changed files with 4 additions and 2 deletions
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6
Processors/68000/Implementation/68000Implementation.hpp
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@ -1303,11 +1303,13 @@ template <class T, bool dtack_is_implicit, bool signal_will_perform> void Proces
const bool is_under = s_extend16(active_program_->destination->halves.low.full) < 0;
const bool is_over = s_extend16(active_program_->destination->halves.low.full) > s_extend16(active_program_->source->halves.low.full);
overflow_flag_ = carry_flag_ = 0;
zero_result_ = active_program_->destination->halves.low.full;
negative_flag_ = (is_under && !is_over) ? 1 : 0;
// No exception is the default course of action; deviate only if an
// exception is necessary.
if(is_under || is_over) {
negative_flag_ = is_under ? 1 : 0;
bus_program = trap_steps_;
populate_trap_steps(6, get_status());
if(is_under) {