nx_nhdl_hier.nx

nx_nhdl_hier.nx -- LIB: NHDL H2 -- HIERARCHY for the sovereign netlist format: a module DEFINED ONCE and INSTANTIATED many times (the "folded" netlist the researched 'Netlist' entry describes: "5 definitions -> 128 instances -> a million cells" -- compact reuse, the thing a flat netlist or a Verilog cell-dump can't do). GRAMMAR (v2): .nhdl 2 .def <name> <npi> <npo> <ncells> # a reusable module definition (local net numbering) L .. / D .. # its cells .po <local nets> .enddef .top <npi> <npo> # the top module .inst <name> <innet0> .. <innet{npi-1}> # instantiate <name>, wiring its PIs to top nets (PI / prior-inst output) ... .po <top nets> .end ELABORATION (unfolding) -> a single flat fabric, via the PROVEN fab_append (R32a): each .inst appends the module's cells with an inmap from its listed inputs; the instance's outputs become new top nets (tracked h2c[]). The flat result runs on fab_eval and round-trips through H1. NEVER-BRICK (#26): pure memory, bounded, deterministic. license_tier: ORIGINAL