Dual Serial Module SIO/2

Sorry, this is hastily done due to time constraints right now.  Will be fleshed out with more info soon.

Important facts;

Port B clock must be driven in order to avoid odd behaviour.  Either put a jumper on the Port B Clock pins, or ensure Clock2 pin on extended bus is being driven from Dual Clock Module.

  • SIOA_D .EQU $81
  • SIOA_C .EQU $80
  • SIOB_D .EQU $83
  • SIOB_C .EQU $82

Github links to 32k Microsoft BASIC, 56k Microsoft BASIC, CP/M Console (For EPROM), CP/M (for CF Card) <Coming soon>
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