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chore: transform runtime model complete (stage kernels, slot map, driver loc)

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Matiq
2026-08-16 22:56:26 +03:00
parent 9ec0470b86
commit 1e9bac7a42
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roadmap.md
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@@ -169,3 +169,12 @@
- OBtained: full FFT-plan model, factor tables, per-type kernels, block->detector->mask flow.
- Next sub-goal: trace the FFT-stage kernel call order used by detector (which plan fields drive per-stage twiddle/mul)
=> then C++ re-implementation is a direct transcription of that order.
### Transform runtime (tracing complete -> next: reimpl)
- Plan fields consumed via plan->thunk indirection: `thunk_FUN_1801560a0` -> `PTR_FUN_1826178a0`; `FUN_18014ec20` thunk -> `PTR_FUN_182617828/850/878` (3 twiddle-loaders).
- Stage kernels:
- **FUN_18000bfc0** (complex stage, slot @182616208): loop 0x40: load-twiddle(re,im) ; `FUN_180008440`(cplx-mul, slot @182615f08) twice (re,im) ; `FUN_1800437c0`(accum). out+=0x200, tw+=0x200, acc+=0x400.
- **FUN_18000c5e0** (double stage, slot @182616220): 0x40-chunks: load-twiddle(re,im); `FUN_180008500`(double mul, slot @182615f20) x2; `FUN_180044700`(accum).
- Dispatch-slot readers (drivers): slot cplx-mul @182615f08 read at 180001c47; stage @182616208 read at 180001e87 => runtime dispatch executors live in 0x180001xxx (thunk chain).
- DSP runtime model := plan + per-stage kernel calls (all ops = dispatched vector kernels), all through `thunk_FUN_181ba94b0` from PACE-protected callers.
- => Reimplementation path: transcribe stage-loop math (kernel shapes known), replicate plan generation, drive per-stage calls in same order; validate losses to within 0.001 dB on Reaper renders.