skeleton/digijet.cpp: Add new NOT WORKING clone #14685
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ajrhacker
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Dec 18, 2025
| uint8_t digijet_state::read_adc(offs_t offset) | ||
| { | ||
| return m_io_adc[offset & 0x03]->read(); //FIXME this is a hack | ||
| // The address lines connected to the ADC are A8-A11 but those can't be accessed externally by this CPU |
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P20-P23 outputs are time-multiplexed with A8-A11 on MCS-48 parts executing from external memory.
I thought that the ADC hookup might use the PROG expander protocol, but from other comments that doesn't sound like the case here.
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