add_sub_c6h.tdf

用vhdl编写的程序

--lpm_add_sub CARRY_CHAIN="MANUAL" CARRY_CHAIN_LENGTH=48 DEVICE_FAMILY="Cyclone" LPM_DIRECTION="DEFAULT" LPM_PIPELINE=0 LPM_REPRESENTATION="SIGNED" LPM_WIDTH=16 add_sub dataa datab result
--VERSION_BEGIN 5.1 cbx_cycloneii 2005:08:30:10:31:44:SJ cbx_lpm_add_sub 2005:09:30:12:13:06:SJ cbx_mgl 2005:10:09:07:39:04:SJ cbx_stratix 2005:10:07:15:53:08:SJ cbx_stratixii 2005:07:27:05:50:56:SJ  VERSION_END


--  Copyright (C) 1991-2005 Altera Corporation
--  Your use of Altera Corporation's design tools, logic functions 
--  and other software and tools, and its AMPP partner logic 
--  functions, and any output files any of the foregoing 
--  (including device programming or simulation files), and any 
--  associated documentation or information are expressly subject 
--  to the terms and conditions of the Altera Program License 
--  Subscription Agreement, Altera MegaCore Function License 
--  Agreement, or other applicable license agreement, including, 
--  without limitation, that your use is for the sole purpose of 
--  programming logic devices manufactured by Altera and sold by 
--  Altera or its authorized distributors.  Please refer to the 
--  applicable agreement for further details.


FUNCTION cyclone_lcell (aclr, aload, cin, clk, dataa, datab, datac, datad, ena, inverta, regcascin, sclr, sload)
WITH ( 	cin_used,	lut_mask,	operation_mode,	output_mode,	register_cascade_mode,	sum_lutc_input,	synch_mode) 
RETURNS ( combout, cout, regout);

--synthesis_resources = lut 17 
SUBDESIGN add_sub_c6h
( 
	add_sub	:	input;
	dataa[15..0]	:	input;
	datab[15..0]	:	input;
	result[15..0]	:	output;
) 
VARIABLE 
	add_sub_cella0 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella1 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella2 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella3 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella4 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella5 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella6 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella7 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella8 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella9 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella10 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella11 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella12 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella13 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella14 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella15 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "9696",
			operation_mode = "normal",
			sum_lutc_input = "cin"
		);
	strx_lcell1 : cyclone_lcell
		WITH (
			cin_used = "false",
			lut_mask = "00CC",
			operation_mode = "arithmetic"
		);

BEGIN 
	add_sub_cella[15..0].cin = ( add_sub_cella[14..0].cout, strx_lcell1.cout);
	add_sub_cella[15..0].dataa = datab[];
	add_sub_cella[15..0].datab = dataa[];
	add_sub_cella[15..0].inverta = (! add_sub);
	strx_lcell1.dataa = B"0";
	strx_lcell1.datab = (! add_sub);
	strx_lcell1.inverta = (! add_sub);
	result[] = add_sub_cella[15..0].combout;
END;
--VALID FILE