mux_1bb.tdf

filter,很不错,大家可以看以下

--lpm_mux CBX_DECLARE_ALL_CONNECTED_PORTS="OFF" DEVICE_FAMILY="Cyclone" LPM_SIZE=4 LPM_WIDTH=7 LPM_WIDTHS=2 data result sel
--VERSION_BEGIN 4.2 cbx_lpm_mux 2004:08:15:21:16:24:SJ cbx_mgl 2004:10:26:10:32:18:SJ  VERSION_END


--  Copyright (C) 1988-2002 Altera Corporation
--  Any  megafunction  design,  and related netlist (encrypted  or  decrypted),
--  support information,  device programming or simulation file,  and any other
--  associated  documentation or information  provided by  Altera  or a partner
--  under  Altera's   Megafunction   Partnership   Program  may  be  used  only
--  to program  PLD  devices (but not masked  PLD  devices) from  Altera.   Any
--  other  use  of such  megafunction  design,  netlist,  support  information,
--  device programming or simulation file,  or any other  related documentation
--  or information  is prohibited  for  any  other purpose,  including, but not
--  limited to  modification,  reverse engineering,  de-compiling, or use  with
--  any other  silicon devices,  unless such use is  explicitly  licensed under
--  a separate agreement with  Altera  or a megafunction partner.  Title to the
--  intellectual property,  including patents,  copyrights,  trademarks,  trade
--  secrets,  or maskworks,  embodied in any such megafunction design, netlist,
--  support  information,  device programming or simulation file,  or any other
--  related documentation or information provided by  Altera  or a megafunction
--  partner, remains with Altera, the megafunction partner, or their respective
--  licensors. No other licenses, including any licenses needed under any third
--  party's intellectual property, are provided herein.



--synthesis_resources = lut 14 
SUBDESIGN mux_1bb
( 
	data[27..0]	:	input;
	result[6..0]	:	output;
	sel[1..0]	:	input;
) 
VARIABLE 
	result_node[6..0]	: WIRE;
	sel_node[1..0]	: WIRE;
	w_data244w[3..0]	: WIRE;
	w_data274w[3..0]	: WIRE;
	w_data299w[3..0]	: WIRE;
	w_data324w[3..0]	: WIRE;
	w_data349w[3..0]	: WIRE;
	w_data374w[3..0]	: WIRE;
	w_data399w[3..0]	: WIRE;
	w_result245w	: WIRE;
	w_result255w	: WIRE;
	w_result256w	: WIRE;
	w_result275w	: WIRE;
	w_result285w	: WIRE;
	w_result286w	: WIRE;
	w_result300w	: WIRE;
	w_result310w	: WIRE;
	w_result311w	: WIRE;
	w_result325w	: WIRE;
	w_result335w	: WIRE;
	w_result336w	: WIRE;
	w_result350w	: WIRE;
	w_result360w	: WIRE;
	w_result361w	: WIRE;
	w_result375w	: WIRE;
	w_result385w	: WIRE;
	w_result386w	: WIRE;
	w_result400w	: WIRE;
	w_result410w	: WIRE;
	w_result411w	: WIRE;

BEGIN 
	result[] = result_node[];
	result_node[] = ( w_result400w, w_result375w, w_result350w, w_result325w, w_result300w, w_result275w, w_result245w);
	sel_node[] = ( sel[1..0]);
	w_data244w[] = ( data[21..21], data[14..14], data[7..7], data[0..0]);
	w_data274w[] = ( data[22..22], data[15..15], data[8..8], data[1..1]);
	w_data299w[] = ( data[23..23], data[16..16], data[9..9], data[2..2]);
	w_data324w[] = ( data[24..24], data[17..17], data[10..10], data[3..3]);
	w_data349w[] = ( data[25..25], data[18..18], data[11..11], data[4..4]);
	w_data374w[] = ( data[26..26], data[19..19], data[12..12], data[5..5]);
	w_data399w[] = ( data[27..27], data[20..20], data[13..13], data[6..6]);
	w_result245w = w_result255w;
	w_result255w = (((w_data244w[1..1] & sel_node[0..0]) & (! w_result256w)) # (w_result256w & (w_data244w[3..3] # (! sel_node[0..0]))));
	w_result256w = (((w_data244w[0..0] & (! sel_node[1..1])) & (! sel_node[0..0])) # (sel_node[1..1] & (sel_node[0..0] # w_data244w[2..2])));
	w_result275w = w_result285w;
	w_result285w = (((w_data274w[1..1] & sel_node[0..0]) & (! w_result286w)) # (w_result286w & (w_data274w[3..3] # (! sel_node[0..0]))));
	w_result286w = (((w_data274w[0..0] & (! sel_node[1..1])) & (! sel_node[0..0])) # (sel_node[1..1] & (sel_node[0..0] # w_data274w[2..2])));
	w_result300w = w_result310w;
	w_result310w = (((w_data299w[1..1] & sel_node[0..0]) & (! w_result311w)) # (w_result311w & (w_data299w[3..3] # (! sel_node[0..0]))));
	w_result311w = (((w_data299w[0..0] & (! sel_node[1..1])) & (! sel_node[0..0])) # (sel_node[1..1] & (sel_node[0..0] # w_data299w[2..2])));
	w_result325w = w_result335w;
	w_result335w = (((w_data324w[1..1] & sel_node[0..0]) & (! w_result336w)) # (w_result336w & (w_data324w[3..3] # (! sel_node[0..0]))));
	w_result336w = (((w_data324w[0..0] & (! sel_node[1..1])) & (! sel_node[0..0])) # (sel_node[1..1] & (sel_node[0..0] # w_data324w[2..2])));
	w_result350w = w_result360w;
	w_result360w = (((w_data349w[1..1] & sel_node[0..0]) & (! w_result361w)) # (w_result361w & (w_data349w[3..3] # (! sel_node[0..0]))));
	w_result361w = (((w_data349w[0..0] & (! sel_node[1..1])) & (! sel_node[0..0])) # (sel_node[1..1] & (sel_node[0..0] # w_data349w[2..2])));
	w_result375w = w_result385w;
	w_result385w = (((w_data374w[1..1] & sel_node[0..0]) & (! w_result386w)) # (w_result386w & (w_data374w[3..3] # (! sel_node[0..0]))));
	w_result386w = (((w_data374w[0..0] & (! sel_node[1..1])) & (! sel_node[0..0])) # (sel_node[1..1] & (sel_node[0..0] # w_data374w[2..2])));
	w_result400w = w_result410w;
	w_result410w = (((w_data399w[1..1] & sel_node[0..0]) & (! w_result411w)) # (w_result411w & (w_data399w[3..3] # (! sel_node[0..0]))));
	w_result411w = (((w_data399w[0..0] & (! sel_node[1..1])) & (! sel_node[0..0])) # (sel_node[1..1] & (sel_node[0..0] # w_data399w[2..2])));
END;
--VALID FILE