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Corrects write-back and zero flag for ADD/SUB.l.
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@ -136,7 +136,7 @@ template <class T, bool dtack_is_implicit> void Processor<T, dtack_is_implicit>:
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const uint32_t destination = active_program_->destination->full;
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const uint64_t result = destination + source;
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zero_result_ = active_program_->destination->halves.low.full = uint32_t(result);
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zero_result_ = active_program_->destination->full = uint32_t(result);
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extend_flag_ = carry_flag_ = result >> 32;
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negative_flag_ = result & 0x80000000;
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overflow_flag_ = add_overflow() & 0x80000000;
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@ -506,7 +506,7 @@ template <class T, bool dtack_is_implicit> void Processor<T, dtack_is_implicit>:
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const uint32_t destination = active_program_->destination->full;
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const uint64_t result = destination - source;
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zero_result_ = active_program_->destination->halves.low.full = uint32_t(result);
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zero_result_ = active_program_->destination->full = uint32_t(result);
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extend_flag_ = carry_flag_ = result >> 32;
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negative_flag_ = result & 0x80000000;
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overflow_flag_ = sub_overflow() & 0x80000000;
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