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Name the VICE test programs, not VICE's emulation, as the source of the VIC-II timing rules - #356

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highbyte merged 1 commit into
feature/cpu-cycle-enginefrom
fix/vice-source-wording
Sep 25, 2026
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highbyte merged 1 commit into
feature/cpu-cycle-enginefrom
fix/vice-source-wording

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Rewords two older mentions that attributed VIC-II timing to VICE itself:

  • docs/systems/c64/libraries.md: the points within a cycle at which register changes reach the output are described as the chip's observed behaviour as VICE's VICII test programs show it, whose reference pictures the output is checked against.
  • Vic2BusStallTests.cs: the 6567R8 sprite fetch cycles are stated as chip behaviour, matching the comment in Vic2BusStalls.cs.

Documentation and comment only; no behaviour change. Strict docs build passes; Vic2BusStallTests pass (32/32).

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highbyte merged commit d6f1688 into feature/cpu-cycle-engine Sep 25, 2026
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highbyte deleted the fix/vice-source-wording branch September 25, 2026 21:02
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