Release 7.1.04i ngdbuild H.42Copyright (c) 1995-2005 Xilinx, Inc.  All rights reserved.Command Line: ngdbuild -p xc2v250-5fg456 -modular module -active sub -uc
../../Top/Initial/alu.ucf ../../Top/Initial/alu.ngo Reading module "alu.ngo" ( "alu.ngo" unchanged since last run )...Reading NGO file 'C:/xapp290/module_based/Modules/sub/alu.ngo' ...Reading module "sub.ngo" ( "sub.ngo" unchanged since last run )...Loading design module "C:\xapp290\module_based\Modules\sub\sub.ngo"...Loading device for application Rf_Device from file '2v250.nph' in environment
c:/Xilinx71.   "bm_4b_v2" is an NCD, version 3.1, device xc2v250, package fg256, speed -5The STEPPING level for this design is 1.Applying constraints in "../../Top/Initial/alu.ucf" to the design...Checking timing specifications ...Checking expanded design ...WARNING:NgdBuild:885 - logical block 'U3' with type 'mult' is unexpanded and
   will be presumed to be a module.WARNING:NgdBuild:885 - logical block 'U1' with type 'add' is unexpanded and will
   be presumed to be a module.NGDBUILD Design Results Summary:  Number of errors:     0  Number of warnings:   2Total memory usage is 80360 kilobytesWriting NGD file "alu.ngd" ...Writing NGDBUILD log file "alu.bld"...