alt_u_div_kve.tdf

ALTERA上DE2平台

--alt_u_div DEVICE_FAMILY="Cyclone II" LPM_PIPELINE=0 MAXIMIZE_SPEED=5 SKIP_BITS=0 WIDTH_D=4 WIDTH_N=6 WIDTH_Q=6 WIDTH_R=4 denominator numerator quotient remainder
--VERSION_BEGIN 7.2SP3 cbx_cycloneii 2007:06:13:15:47:32:SJ cbx_lpm_abs 2006:04:25:14:52:42:SJ cbx_lpm_add_sub 2007:08:06:16:01:34:SJ cbx_lpm_divide 2007:01:30:03:58:02:SJ cbx_mgl 2007:08:03:15:48:12:SJ cbx_stratix 2007:10:18:20:36:46:SJ cbx_stratixii 2007:10:19:15:30:42:SJ cbx_util_mgl 2007:11:07:17:40:20:SJ  VERSION_END


-- Copyright (C) 1991-2007 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 add_sub_lkc (dataa[0..0], datab[0..0])
RETURNS ( cout, result[0..0]);
FUNCTION add_sub_mkc (dataa[1..0], datab[1..0])
RETURNS ( cout, result[1..0]);

--synthesis_resources = lut 21 
SUBDESIGN alt_u_div_kve
( 
	den_out[3..0]	:	output;
	denominator[3..0]	:	input;
	numerator[5..0]	:	input;
	quotient[5..0]	:	output;
	remainder[3..0]	:	output;
) 
VARIABLE 
	add_sub_0 : add_sub_lkc;
	add_sub_1 : add_sub_mkc;
	add_sub_2_result_int[3..0]	:	WIRE;
	add_sub_2_cout	:	WIRE;
	add_sub_2_dataa[2..0]	:	WIRE;
	add_sub_2_datab[2..0]	:	WIRE;
	add_sub_2_result[2..0]	:	WIRE;
	add_sub_3_result_int[4..0]	:	WIRE;
	add_sub_3_cout	:	WIRE;
	add_sub_3_dataa[3..0]	:	WIRE;
	add_sub_3_datab[3..0]	:	WIRE;
	add_sub_3_result[3..0]	:	WIRE;
	add_sub_4_result_int[5..0]	:	WIRE;
	add_sub_4_cout	:	WIRE;
	add_sub_4_dataa[4..0]	:	WIRE;
	add_sub_4_datab[4..0]	:	WIRE;
	add_sub_4_result[4..0]	:	WIRE;
	add_sub_5_result_int[5..0]	:	WIRE;
	add_sub_5_cout	:	WIRE;
	add_sub_5_dataa[4..0]	:	WIRE;
	add_sub_5_datab[4..0]	:	WIRE;
	add_sub_5_result[4..0]	:	WIRE;
	DenominatorIn[34..0]	: WIRE;
	DenominatorIn_tmp[34..0]	: WIRE;
	gnd_wire	: WIRE;
	nose[41..0]	: WIRE;
	NumeratorIn[41..0]	: WIRE;
	NumeratorIn_tmp[41..0]	: WIRE;
	prestg[29..0]	: WIRE;
	quotient_tmp[5..0]	: WIRE;
	sel[27..0]	: WIRE;
	selnose[41..0]	: WIRE;
	StageIn[34..0]	: WIRE;
	StageIn_tmp[34..0]	: WIRE;
	StageOut[29..0]	: WIRE;

BEGIN 
	add_sub_0.dataa[0..0] = NumeratorIn[5..5];
	add_sub_0.datab[0..0] = DenominatorIn[0..0];
	add_sub_1.dataa[] = ( StageIn[5..5], NumeratorIn[10..10]);
	add_sub_1.datab[1..0] = DenominatorIn[6..5];
	add_sub_2_result_int[] = (0, add_sub_2_dataa[]) - (0, add_sub_2_datab[]);
	add_sub_2_result[] = add_sub_2_result_int[2..0];
	add_sub_2_cout = !add_sub_2_result_int[3];
	add_sub_2_dataa[] = ( StageIn[11..10], NumeratorIn[15..15]);
	add_sub_2_datab[] = DenominatorIn[12..10];
	add_sub_3_result_int[] = (0, add_sub_3_dataa[]) - (0, add_sub_3_datab[]);
	add_sub_3_result[] = add_sub_3_result_int[3..0];
	add_sub_3_cout = !add_sub_3_result_int[4];
	add_sub_3_dataa[] = ( StageIn[17..15], NumeratorIn[20..20]);
	add_sub_3_datab[] = DenominatorIn[18..15];
	add_sub_4_result_int[] = (0, add_sub_4_dataa[]) - (0, add_sub_4_datab[]);
	add_sub_4_result[] = add_sub_4_result_int[4..0];
	add_sub_4_cout = !add_sub_4_result_int[5];
	add_sub_4_dataa[] = ( StageIn[23..20], NumeratorIn[25..25]);
	add_sub_4_datab[] = DenominatorIn[24..20];
	add_sub_5_result_int[] = (0, add_sub_5_dataa[]) - (0, add_sub_5_datab[]);
	add_sub_5_result[] = add_sub_5_result_int[4..0];
	add_sub_5_cout = !add_sub_5_result_int[5];
	add_sub_5_dataa[] = ( StageIn[28..25], NumeratorIn[30..30]);
	add_sub_5_datab[] = DenominatorIn[29..25];
	den_out[3..0] = DenominatorIn[28..25];
	DenominatorIn[] = (gnd_wire # DenominatorIn_tmp[]);
	DenominatorIn_tmp[] = ( DenominatorIn[29..0], ( gnd_wire, denominator[]));
	gnd_wire = B"0";
	nose[] = ( B"000000", (add_sub_5_cout # gnd_wire), B"000000", (add_sub_4_cout # gnd_wire), B"000000", (add_sub_3_cout # gnd_wire), B"000000", (add_sub_2_cout # gnd_wire), B"000000", (add_sub_1.cout # gnd_wire), B"000000", (add_sub_0.cout # gnd_wire));
	NumeratorIn[] = (gnd_wire # NumeratorIn_tmp[]);
	NumeratorIn_tmp[] = ( NumeratorIn[35..0], numerator[]);
	prestg[] = ( add_sub_5_result[], add_sub_4_result[], GND, add_sub_3_result[], B"00", add_sub_2_result[], B"000", add_sub_1.result[], B"0000", add_sub_0.result[]);
	quotient[] = quotient_tmp[];
	quotient_tmp[] = ( (! selnose[0..0]), (! selnose[7..7]), (! selnose[14..14]), (! selnose[21..21]), (! selnose[28..28]), (! selnose[35..35]));
	remainder[3..0] = StageIn[33..30];
	sel[] = ( gnd_wire, (gnd_wire # (sel[27..27] # DenominatorIn[33..33])), (gnd_wire # (sel[26..26] # DenominatorIn[32..32])), (gnd_wire # (sel[25..25] # DenominatorIn[31..31])), gnd_wire, (gnd_wire # (sel[23..23] # DenominatorIn[28..28])), (gnd_wire # (sel[22..22] # DenominatorIn[27..27])), (gnd_wire # (sel[21..21] # DenominatorIn[26..26])), gnd_wire, (gnd_wire # (sel[19..19] # DenominatorIn[23..23])), (gnd_wire # (sel[18..18] # DenominatorIn[22..22])), (gnd_wire # (sel[17..17] # DenominatorIn[21..21])), gnd_wire, (gnd_wire # (sel[15..15] # DenominatorIn[18..18])), (gnd_wire # (sel[14..14] # DenominatorIn[17..17])), (gnd_wire # (sel[13..13] # DenominatorIn[16..16])), gnd_wire, (gnd_wire # (sel[11..11] # DenominatorIn[13..13])), (gnd_wire # (sel[10..10] # DenominatorIn[12..12])), (gnd_wire # (sel[9..9] # DenominatorIn[11..11])), gnd_wire, (gnd_wire # (sel[7..7] # DenominatorIn[8..8])), (gnd_wire # (sel[6..6] # DenominatorIn[7..7])), (gnd_wire # (sel[5..5] # DenominatorIn[6..6])), gnd_wire, (gnd_wire # (sel[3..3] # DenominatorIn[3..3])), (gnd_wire # (sel[2..2] # DenominatorIn[2..2])), (gnd_wire # (sel[1..1] # DenominatorIn[1..1])));
	selnose[] = ( (gnd_wire # (! nose[41..41])), (gnd_wire # (! nose[40..40])), ((gnd_wire # (! nose[39..39])) # sel[27..27]), ((gnd_wire # (! nose[38..38])) # sel[26..26]), ((gnd_wire # (! nose[37..37])) # sel[25..25]), ((gnd_wire # (! nose[36..36])) # sel[24..24]), (gnd_wire # (! nose[35..35])), (gnd_wire # (! nose[34..34])), ((gnd_wire # (! nose[33..33])) # sel[23..23]), ((gnd_wire # (! nose[32..32])) # sel[22..22]), ((gnd_wire # (! nose[31..31])) # sel[21..21]), ((gnd_wire # (! nose[30..30])) # sel[20..20]), (gnd_wire # (! nose[29..29])), (gnd_wire # (! nose[28..28])), ((gnd_wire # (! nose[27..27])) # sel[19..19]), ((gnd_wire # (! nose[26..26])) # sel[18..18]), ((gnd_wire # (! nose[25..25])) # sel[17..17]), ((gnd_wire # (! nose[24..24])) # sel[16..16]), (gnd_wire # (! nose[23..23])), (gnd_wire # (! nose[22..22])), ((gnd_wire # (! nose[21..21])) # sel[15..15]), ((gnd_wire # (! nose[20..20])) # sel[14..14]), ((gnd_wire # (! nose[19..19])) # sel[13..13]), ((gnd_wire # (! nose[18..18])) # sel[12..12]), (gnd_wire # (! nose[17..17])), (gnd_wire # (! nose[16..16])), ((gnd_wire # (! nose[15..15])) # sel[11..11]), ((gnd_wire # (! nose[14..14])) # sel[10..10]), ((gnd_wire # (! nose[13..13])) # sel[9..9]), ((gnd_wire # (! nose[12..12])) # sel[8..8]), (gnd_wire # (! nose[11..11])), (gnd_wire # (! nose[10..10])), ((gnd_wire # (! nose[9..9])) # sel[7..7]), ((gnd_wire # (! nose[8..8])) # sel[6..6]), ((gnd_wire # (! nose[7..7])) # sel[5..5]), ((gnd_wire # (! nose[6..6])) # sel[4..4]), (gnd_wire # (! nose[5..5])), (gnd_wire # (! nose[4..4])), ((gnd_wire # (! nose[3..3])) # sel[3..3]), ((gnd_wire # (! nose[2..2])) # sel[2..2]), ((gnd_wire # (! nose[1..1])) # sel[1..1]), ((gnd_wire # (! nose[0..0])) # sel[0..0]));
	StageIn[] = (gnd_wire # StageIn_tmp[]);
	StageIn_tmp[] = ( StageOut[29..0], B"00000");
	StageOut[] = ( ((( StageIn[28..25], NumeratorIn[30..30]) & selnose[35..35]) # (prestg[29..25] & (! selnose[35..35]))), ((( StageIn[23..20], NumeratorIn[25..25]) & selnose[28..28]) # (prestg[24..20] & (! selnose[28..28]))), ((( StageIn[18..15], NumeratorIn[20..20]) & selnose[21..21]) # (prestg[19..15] & (! selnose[21..21]))), ((( StageIn[13..10], NumeratorIn[15..15]) & selnose[14..14]) # (prestg[14..10] & (! selnose[14..14]))), ((( StageIn[8..5], NumeratorIn[10..10]) & selnose[7..7]) # (prestg[9..5] & (! selnose[7..7]))), ((( StageIn[3..0], NumeratorIn[5..5]) & selnose[0..0]) # (prestg[4..0] & (! selnose[0..0]))));
END;
--VALID FILE