Add absolute guest-CPU-cycle (since boot) to every parity row via a per-process
parity_host_cycle() accessor (native psx_get_cycle_count; Beetle
beetle_core_get_guest_cycles — directly comparable). Widen ParityEntry.cycle to
64-bit; both dump handlers emit it. This turns the cutscene divergence from "273
frames early" into a hard cycle delta: Beetle runs 566k cycles/frame (≈ real PSX
VBlank 564480); native reaches the cutscene state-advance ~150-200M guest-cycles
early — an over-fast cycle deficit (DMA-cycle-steal signature) in the faithful-
timing stack. Beetle producer side mirrored in the main checkout.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Matthew Stanley
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