add_sub_jqd.tdf

FPGA开发光盘各章节实例的设计工程与源码

--lpm_add_sub CARRY_CHAIN="MANUAL" CARRY_CHAIN_LENGTH=70 DEVICE_FAMILY="Stratix" LPM_REPRESENTATION="UNSIGNED" LPM_WIDTH=17 add_sub dataa datab result
--VERSION_BEGIN 6.1 cbx_cycloneii 2006:09:29:19:03:26:SJ cbx_lpm_add_sub 2006:10:10:22:03:24:SJ cbx_mgl 2006:10:27:16:08:48:SJ cbx_stratix 2006:09:18:10:47:42:SJ cbx_stratixii 2006:10:13:14:01:30:SJ  VERSION_END


--  Copyright (C) 1991-2006 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 from 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 stratix_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 18 
SUBDESIGN add_sub_jqd
( 
	add_sub	:	input;
	dataa[16..0]	:	input;
	datab[16..0]	:	input;
	result[16..0]	:	output;
) 
VARIABLE 
	add_sub_cella0 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella1 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella2 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella3 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella4 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella5 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella6 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella7 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella8 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella9 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella10 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella11 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella12 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella13 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella14 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella15 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "96E8",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin"
		);
	add_sub_cella16 : stratix_lcell
		WITH (
			cin_used = "true",
			lut_mask = "9696",
			operation_mode = "normal",
			sum_lutc_input = "cin"
		);
	strx_lcell1 : stratix_lcell
		WITH (
			cin_used = "false",
			lut_mask = "00CC",
			operation_mode = "arithmetic"
		);

BEGIN 
	add_sub_cella[16..0].cin = ( add_sub_cella[15..0].cout, strx_lcell1.cout);
	add_sub_cella[16..0].dataa = datab[];
	add_sub_cella[16..0].datab = dataa[];
	add_sub_cella[16..0].inverta = (! add_sub);
	strx_lcell1.dataa = B"0";
	strx_lcell1.datab = (! add_sub);
	strx_lcell1.inverta = (! add_sub);
	result[] = add_sub_cella[16..0].combout;
END;
--VALID FILE