nx_evo_cross.nx

nx_evo_cross.nx -- EVOLUTIONARY SYNTHESIS roadmap RUNG 1: CROSSOVER (X-AUT-006M). nx_evo_synth (006L) is a (1+lambda) ES: elite + mutants-of-the-ONE-best = a hill climber that stalls in local optima (it left target 1000 at NEAR dist=15). This organ is a real GENETIC ALGORITHM: a DIVERSE population, TOURNAMENT selection, and ONE-POINT CROSSOVER (recombine two parents) + mutation + elitism. Crossover mixes building blocks from different lineages, so the search escapes the basins that trap the mutation-only climber. Same I/O + champion-materialization as 006L, so the two are a head-to-head MEASURED-EXCEED pair. nx_evo_cross <champion_basename> <start> <target> <seed> genome = EVO_L ops; pop EVO_P; gens EVO_G; tournament size EVO_T. Deterministic seeded LCG. Prints FOUND/NEAR gen dist result genome; writes the DISCOVERED champion organ (runtime/_hdl_build/<name>.nx) for compile+run verification. MEASURED-EXCEED gate (no-false-green): on a target the 006L baseline leaves NEAR (e.g. 1000), this GA reaches dist=0 (FOUND) and the champion COMPILES+RUNS to the target -- a measured improvement, pos vs the documented baseline NEAR. Sovereign, no gcc/.sh. HONEST SCOPE: still linear op-list genomes / distance fitness; adds crossover+tournament+diversity. license_tier: ORIGINAL