- Updated APU timing analysis to reflect implementation completion, addressing core timing issues with the SPC700.
- Added a headless emulator test harness for testing APU functionality without GUI overhead.
- Enhanced cycle accuracy and instruction execution, with known audio glitches noted for future refinement.
- Updated success criteria to reflect completed tasks and ongoing work for unit tests and audio quality improvements.
Benefits:
- Improved APU execution accuracy and synchronization.
- Streamlined testing process for APU functionality.
- Clear documentation of current implementation status and future work.
- Document what LakeSnes does right (atomic execution, cycle callbacks)
- Identify where LakeSnes falls short (implicit counting, no explicit return)
- Define what we're adopting vs improving
- Clarify hybrid approach: LakeSnes simplicity + explicit validation
- Document current bstep mechanism and its fragility
- Identify root cause of handshake timing failure
- Design atomic instruction execution approach
- Plan fixed-point cycle ratio conversion
- Outline implementation strategy
Relates to #APU-timing-fix
