alt_u_div_ove.tdf

来自「swatch - quartus2 vhdl」· TDF 代码 · 共 112 行

--alt_u_div DEVICE_FAMILY="Cyclone II" LPM_PIPELINE=0 MAXIMIZE_SPEED=5 SKIP_BITS=0 WIDTH_D=6 WIDTH_N=6 WIDTH_Q=6 WIDTH_R=6 denominator numerator quotient remainder
--VERSION_BEGIN 8.0SP1 cbx_cycloneii 2008:06:02:292401 cbx_lpm_abs 2008:06:02:292401 cbx_lpm_add_sub 2008:06:02:292401 cbx_lpm_divide 2008:06:02:292401 cbx_mgl 2008:06:02:292401 cbx_stratix 2008:06:02:292401 cbx_stratixii 2008:06:02:292401 cbx_util_mgl 2008:06:02:292401  VERSION_END


-- Copyright (C) 1991-2008 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 22 
SUBDESIGN alt_u_div_ove
( 
	denominator[5..0]	:	input;
	numerator[5..0]	:	input;
	quotient[5..0]	:	output;
	remainder[5..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[6..0]	:	WIRE;
	add_sub_5_cout	:	WIRE;
	add_sub_5_dataa[5..0]	:	WIRE;
	add_sub_5_datab[5..0]	:	WIRE;
	add_sub_5_result[5..0]	:	WIRE;
	DenominatorIn[48..0]	: WIRE;
	DenominatorIn_tmp[48..0]	: WIRE;
	gnd_wire	: WIRE;
	nose[41..0]	: WIRE;
	NumeratorIn[41..0]	: WIRE;
	NumeratorIn_tmp[41..0]	: WIRE;
	prestg[35..0]	: WIRE;
	quotient_tmp[5..0]	: WIRE;
	sel[41..0]	: WIRE;
	selnose[41..0]	: WIRE;
	StageIn[41..0]	: WIRE;
	StageIn_tmp[41..0]	: WIRE;
	StageOut[35..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[6..6], NumeratorIn[10..10]);
	add_sub_1.datab[1..0] = DenominatorIn[8..7];
	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[13..12], NumeratorIn[15..15]);
	add_sub_2_datab[] = DenominatorIn[16..14];
	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[20..18], NumeratorIn[20..20]);
	add_sub_3_datab[] = DenominatorIn[24..21];
	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[27..24], NumeratorIn[25..25]);
	add_sub_4_datab[] = DenominatorIn[32..28];
	add_sub_5_result_int[] = (0, add_sub_5_dataa[]) - (0, add_sub_5_datab[]);
	add_sub_5_result[] = add_sub_5_result_int[5..0];
	add_sub_5_cout = !add_sub_5_result_int[6];
	add_sub_5_dataa[] = ( StageIn[34..30], NumeratorIn[30..30]);
	add_sub_5_datab[] = DenominatorIn[40..35];
	DenominatorIn[] = DenominatorIn_tmp[];
	DenominatorIn_tmp[] = ( DenominatorIn[41..0], ( gnd_wire, denominator[]));
	gnd_wire = B"0";
	nose[] = ( B"000000", add_sub_5_cout, B"000000", add_sub_4_cout, B"000000", add_sub_3_cout, B"000000", add_sub_2_cout, B"000000", add_sub_1.cout, B"000000", add_sub_0.cout);
	NumeratorIn[] = NumeratorIn_tmp[];
	NumeratorIn_tmp[] = ( NumeratorIn[35..0], numerator[]);
	prestg[] = ( add_sub_5_result[], GND, add_sub_4_result[], B"00", add_sub_3_result[], B"000", add_sub_2_result[], B"0000", add_sub_1.result[], B"00000", 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[5..0] = StageIn[41..36];
	sel[] = ( gnd_wire, (sel[41..41] # DenominatorIn[47..47]), (sel[40..40] # DenominatorIn[46..46]), (sel[39..39] # DenominatorIn[45..45]), (sel[38..38] # DenominatorIn[44..44]), (sel[37..37] # DenominatorIn[43..43]), gnd_wire, (sel[35..35] # DenominatorIn[40..40]), (sel[34..34] # DenominatorIn[39..39]), (sel[33..33] # DenominatorIn[38..38]), (sel[32..32] # DenominatorIn[37..37]), (sel[31..31] # DenominatorIn[36..36]), gnd_wire, (sel[29..29] # DenominatorIn[33..33]), (sel[28..28] # DenominatorIn[32..32]), (sel[27..27] # DenominatorIn[31..31]), (sel[26..26] # DenominatorIn[30..30]), (sel[25..25] # DenominatorIn[29..29]), gnd_wire, (sel[23..23] # DenominatorIn[26..26]), (sel[22..22] # DenominatorIn[25..25]), (sel[21..21] # DenominatorIn[24..24]), (sel[20..20] # DenominatorIn[23..23]), (sel[19..19] # DenominatorIn[22..22]), gnd_wire, (sel[17..17] # DenominatorIn[19..19]), (sel[16..16] # DenominatorIn[18..18]), (sel[15..15] # DenominatorIn[17..17]), (sel[14..14] # DenominatorIn[16..16]), (sel[13..13] # DenominatorIn[15..15]), gnd_wire, (sel[11..11] # DenominatorIn[12..12]), (sel[10..10] # DenominatorIn[11..11]), (sel[9..9] # DenominatorIn[10..10]), (sel[8..8] # DenominatorIn[9..9]), (sel[7..7] # DenominatorIn[8..8]), gnd_wire, (sel[5..5] # DenominatorIn[5..5]), (sel[4..4] # DenominatorIn[4..4]), (sel[3..3] # DenominatorIn[3..3]), (sel[2..2] # DenominatorIn[2..2]), (sel[1..1] # DenominatorIn[1..1]));
	selnose[] = ( ((! nose[41..41]) # sel[41..41]), ((! nose[40..40]) # sel[40..40]), ((! nose[39..39]) # sel[39..39]), ((! nose[38..38]) # sel[38..38]), ((! nose[37..37]) # sel[37..37]), ((! nose[36..36]) # sel[36..36]), ((! nose[35..35]) # sel[35..35]), ((! nose[34..34]) # sel[34..34]), ((! nose[33..33]) # sel[33..33]), ((! nose[32..32]) # sel[32..32]), ((! nose[31..31]) # sel[31..31]), ((! nose[30..30]) # sel[30..30]), ((! nose[29..29]) # sel[29..29]), ((! nose[28..28]) # sel[28..28]), ((! nose[27..27]) # sel[27..27]), ((! nose[26..26]) # sel[26..26]), ((! nose[25..25]) # sel[25..25]), ((! nose[24..24]) # sel[24..24]), ((! nose[23..23]) # sel[23..23]), ((! nose[22..22]) # sel[22..22]), ((! nose[21..21]) # sel[21..21]), ((! nose[20..20]) # sel[20..20]), ((! nose[19..19]) # sel[19..19]), ((! nose[18..18]) # sel[18..18]), ((! nose[17..17]) # sel[17..17]), ((! nose[16..16]) # sel[16..16]), ((! nose[15..15]) # sel[15..15]), ((! nose[14..14]) # sel[14..14]), ((! nose[13..13]) # sel[13..13]), ((! nose[12..12]) # sel[12..12]), ((! nose[11..11]) # sel[11..11]), ((! nose[10..10]) # sel[10..10]), ((! nose[9..9]) # sel[9..9]), ((! nose[8..8]) # sel[8..8]), ((! nose[7..7]) # sel[7..7]), ((! nose[6..6]) # sel[6..6]), ((! nose[5..5]) # sel[5..5]), ((! nose[4..4]) # sel[4..4]), ((! nose[3..3]) # sel[3..3]), ((! nose[2..2]) # sel[2..2]), ((! nose[1..1]) # sel[1..1]), ((! nose[0..0]) # sel[0..0]));
	StageIn[] = StageIn_tmp[];
	StageIn_tmp[] = ( StageOut[35..0], B"000000");
	StageOut[] = ( ((( StageIn[34..30], NumeratorIn[30..30]) & selnose[35..35]) # (prestg[35..30] & (! selnose[35..35]))), ((( StageIn[28..24], NumeratorIn[25..25]) & selnose[28..28]) # (prestg[29..24] & (! selnose[28..28]))), ((( StageIn[22..18], NumeratorIn[20..20]) & selnose[21..21]) # (prestg[23..18] & (! selnose[21..21]))), ((( StageIn[16..12], NumeratorIn[15..15]) & selnose[14..14]) # (prestg[17..12] & (! selnose[14..14]))), ((( StageIn[10..6], NumeratorIn[10..10]) & selnose[7..7]) # (prestg[11..6] & (! selnose[7..7]))), ((( StageIn[4..0], NumeratorIn[5..5]) & selnose[0..0]) # (prestg[5..0] & (! selnose[0..0]))));
END;
--VALID FILE