Module precompute 

Precomputed scattering matrix binary format (.pksc).

Stores scattering matrices, VS injection vectors, port resistances, and pot interpolation tables so Cortex-M7 can skip MNA derivation at runtime.

Binary format

All multi-byte values are little-endian. f64 values are transmitted as their IEEE-754 bit pattern.

Header (32 bytes):
  magic:              [u8; 4]  = b"PKSC"
  version:            u16      = 1
  flags:              u16      = 0
  pedal_hash:         u32      (FNV-1a of source text)
  sample_rate_bits:   u64      (f64::to_bits)
  num_stages:         u16
  num_interp_tables:  u16
  reserved:           [u8; 8]

Per Stage:
  stage_type:        u8     (0=WDF, 1=MultiNL, 2=PushPull)
  n_ports:           u16
  has_vs_injection:  u8
  has_extract:       u8
  padding:           [u8; 3]
  scattering:        [f64; n_ports × n_ports]  row-major
  vs_injection:      [f64; n_ports]             only if has_vs_injection != 0
  port_resistances:  [f64; n_ports]
  extract_coeffs:    [f64; n_ports]             only if has_extract != 0
  extract_vs:        f64                        only if has_extract != 0

Per Interpolation Table:
  stage_index:       u16
  n_positions:       u16
  n_ports:           u16
  has_vs_injection:  u8
  padding:           u8
  resistances:       [f64; n_positions]
  matrices:          [f64; n_positions × n_ports × n_ports]
  injections:        [f64; n_positions × n_ports]   only if has_vs_injection != 0

Structs

PrecomputedInterpTable

Precomputed pot-sweep interpolation table for a single-pot stage.

PrecomputedScattering

A complete precomputed scattering package for one .pedal file.

PrecomputedStage

Precomputed data for one stage (WDF, MultiNL, or PushPull).

Enums

PrecomputeError

Errors produced by .pksc serialization / deserialization.

Functions

extract_precomputed

Extract a PrecomputedScattering from a compiled pedal.

pedal_hash

Compute the 32-bit FNV-1a hash of text.