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This module saves the core 6502 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.
Type | Name | Description |
DWORD | CLK | the current CPU clock value. All other clock values are relative to this. |
BYTE | AC | Accumulator |
BYTE | XR | X index register |
BYTE | YR | Y index register |
BYTE | SP | Stack Pointer |
WORD | PC | Programm Counter |
BYTE | ST | Status Registers |
DWORD | LASTOPCODE | ? |
DWORD | IRQCLK | absolute CLK when the IRQ line came active |
DOWRD | NMICLK | absolute CLK when the NMI line came active |
DWORD | ? | ? |
DWORD | ? | ? |