nx_cpu_rtype_exec_test.nx

nx_cpu_rtype_exec_test.nx -- TOP-LEVEL COMPOSITION capstone: a full R-type decode->execute datapath, composed from the three proven gate-emit modules in ONE gate-sim graph: inst -> [decoder fields] -> funct3/funct7 -> [R-type control] -> alu_op (rs1_val, rs2_val, alu_op) -> [ALU build_select, divider-backed] -> result Verifies the composed netlist against the behavioral chain decode_kind -> sim_alu_select -> nx_rv64im_alu_compute over funct3 0..7 x funct7 {0,1,0x20} x random nonzero operands. Proves the decoder + control + ALU COMPOSE into a working R-type execute datapath at the GATE level -- the integration milestone toward emitting the whole CPU. Sovereign, no-float. license_tier: ORIGINAL expect_exit: 0