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9.2.2.4 CPU 6809 module

This module saves the core 6809 state. You will find a clock value there. All other modules save their own clock values relative to this value. However, the drive modules save their clocks relative to their appropriate CPUs of course.

TypeNameDescription
DWORDCLKthe current CPU clock value. All other clock values are relative to this.
WORDXThe X register
WORDYThe Y register
WORDUThe U register
WORDPCThe Program Counter register
BYTEDPThe Direct Page register
BYTECCThe Condition Code register
BYTEAThe A register
BYTEBThe B register
The following are for 6309 compatibility:
WORDVThe V register
BYTEEThe E register
BYTEFThe F register