add_sub_9fc.tdf

Altera的FPGA设计的硬件除法器

--lpm_add_sub CARRY_CHAIN="MANUAL" CARRY_CHAIN_LENGTH=48 DEVICE_FAMILY="Cyclone" LPM_DIRECTION="SUB" LPM_WIDTH=32 cout dataa datab result
--VERSION_BEGIN 6.0 cbx_cycloneii 2006:02:07:15:19:20:SJ cbx_lpm_add_sub 2006:01:09:11:17:20:SJ cbx_mgl 2006:04:14:11:14:36:SJ cbx_stratix 2006:02:07:15:17:04:SJ cbx_stratixii 2006:03:03:09:35:36:SJ  VERSION_END


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--  without limitation, that your use is for the sole purpose of 
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FUNCTION carry_sum (cin, sin)
RETURNS ( cout, sout);

--synthesis_resources = lut 32 
SUBDESIGN add_sub_9fc
( 
	cout	:	output;
	dataa[31..0]	:	input;
	datab[31..0]	:	input;
	result[31..0]	:	output;
) 
VARIABLE 
	add_sub_cella[31..0] : carry_sum;
	datab_node[31..0]	: WIRE;
	main_cin_wire	: WIRE;

BEGIN 
	add_sub_cella[].cin = ( ((dataa[31..31] & datab_node[31..31]) # ((dataa[31..31] # datab_node[31..31]) & add_sub_cella[30].cout)), ((dataa[30..30] & datab_node[30..30]) # ((dataa[30..30] # datab_node[30..30]) & add_sub_cella[29].cout)), ((dataa[29..29] & datab_node[29..29]) # ((dataa[29..29] # datab_node[29..29]) & add_sub_cella[28].cout)), ((dataa[28..28] & datab_node[28..28]) # ((dataa[28..28] # datab_node[28..28]) & add_sub_cella[27].cout)), ((dataa[27..27] & datab_node[27..27]) # ((dataa[27..27] # datab_node[27..27]) & add_sub_cella[26].cout)), ((dataa[26..26] & datab_node[26..26]) # ((dataa[26..26] # datab_node[26..26]) & add_sub_cella[25].cout)), ((dataa[25..25] & datab_node[25..25]) # ((dataa[25..25] # datab_node[25..25]) & add_sub_cella[24].cout)), ((dataa[24..24] & datab_node[24..24]) # ((dataa[24..24] # datab_node[24..24]) & add_sub_cella[23].cout)), ((dataa[23..23] & datab_node[23..23]) # ((dataa[23..23] # datab_node[23..23]) & add_sub_cella[22].cout)), ((dataa[22..22] & datab_node[22..22]) # ((dataa[22..22] # datab_node[22..22]) & add_sub_cella[21].cout)), ((dataa[21..21] & datab_node[21..21]) # ((dataa[21..21] # datab_node[21..21]) & add_sub_cella[20].cout)), ((dataa[20..20] & datab_node[20..20]) # ((dataa[20..20] # datab_node[20..20]) & add_sub_cella[19].cout)), ((dataa[19..19] & datab_node[19..19]) # ((dataa[19..19] # datab_node[19..19]) & add_sub_cella[18].cout)), ((dataa[18..18] & datab_node[18..18]) # ((dataa[18..18] # datab_node[18..18]) & add_sub_cella[17].cout)), ((dataa[17..17] & datab_node[17..17]) # ((dataa[17..17] # datab_node[17..17]) & add_sub_cella[16].cout)), ((dataa[16..16] & datab_node[16..16]) # ((dataa[16..16] # datab_node[16..16]) & add_sub_cella[15].cout)), ((dataa[15..15] & datab_node[15..15]) # ((dataa[15..15] # datab_node[15..15]) & add_sub_cella[14].cout)), ((dataa[14..14] & datab_node[14..14]) # ((dataa[14..14] # datab_node[14..14]) & add_sub_cella[13].cout)), ((dataa[13..13] & datab_node[13..13]) # ((dataa[13..13] # datab_node[13..13]) & add_sub_cella[12].cout)), ((dataa[12..12] & datab_node[12..12]) # ((dataa[12..12] # datab_node[12..12]) & add_sub_cella[11].cout)), ((dataa[11..11] & datab_node[11..11]) # ((dataa[11..11] # datab_node[11..11]) & add_sub_cella[10].cout)), ((dataa[10..10] & datab_node[10..10]) # ((dataa[10..10] # datab_node[10..10]) & add_sub_cella[9].cout)), ((dataa[9..9] & datab_node[9..9]) # ((dataa[9..9] # datab_node[9..9]) & add_sub_cella[8].cout)), ((dataa[8..8] & datab_node[8..8]) # ((dataa[8..8] # datab_node[8..8]) & add_sub_cella[7].cout)), ((dataa[7..7] & datab_node[7..7]) # ((dataa[7..7] # datab_node[7..7]) & add_sub_cella[6].cout)), ((dataa[6..6] & datab_node[6..6]) # ((dataa[6..6] # datab_node[6..6]) & add_sub_cella[5].cout)), ((dataa[5..5] & datab_node[5..5]) # ((dataa[5..5] # datab_node[5..5]) & add_sub_cella[4].cout)), ((dataa[4..4] & datab_node[4..4]) # ((dataa[4..4] # datab_node[4..4]) & add_sub_cella[3].cout)), ((dataa[3..3] & datab_node[3..3]) # ((dataa[3..3] # datab_node[3..3]) & add_sub_cella[2].cout)), ((dataa[2..2] & datab_node[2..2]) # ((dataa[2..2] # datab_node[2..2]) & add_sub_cella[1].cout)), ((dataa[1..1] & datab_node[1..1]) # ((dataa[1..1] # datab_node[1..1]) & add_sub_cella[0].cout)), ((dataa[0..0] & datab_node[0..0]) # ((dataa[0..0] # datab_node[0..0]) & main_cin_wire)));
	add_sub_cella[].sin = ( ((dataa[31..31] $ datab_node[31..31]) $ add_sub_cella[30].cout), ((dataa[30..30] $ datab_node[30..30]) $ add_sub_cella[29].cout), ((dataa[29..29] $ datab_node[29..29]) $ add_sub_cella[28].cout), ((dataa[28..28] $ datab_node[28..28]) $ add_sub_cella[27].cout), ((dataa[27..27] $ datab_node[27..27]) $ add_sub_cella[26].cout), ((dataa[26..26] $ datab_node[26..26]) $ add_sub_cella[25].cout), ((dataa[25..25] $ datab_node[25..25]) $ add_sub_cella[24].cout), ((dataa[24..24] $ datab_node[24..24]) $ add_sub_cella[23].cout), ((dataa[23..23] $ datab_node[23..23]) $ add_sub_cella[22].cout), ((dataa[22..22] $ datab_node[22..22]) $ add_sub_cella[21].cout), ((dataa[21..21] $ datab_node[21..21]) $ add_sub_cella[20].cout), ((dataa[20..20] $ datab_node[20..20]) $ add_sub_cella[19].cout), ((dataa[19..19] $ datab_node[19..19]) $ add_sub_cella[18].cout), ((dataa[18..18] $ datab_node[18..18]) $ add_sub_cella[17].cout), ((dataa[17..17] $ datab_node[17..17]) $ add_sub_cella[16].cout), ((dataa[16..16] $ datab_node[16..16]) $ add_sub_cella[15].cout), ((dataa[15..15] $ datab_node[15..15]) $ add_sub_cella[14].cout), ((dataa[14..14] $ datab_node[14..14]) $ add_sub_cella[13].cout), ((dataa[13..13] $ datab_node[13..13]) $ add_sub_cella[12].cout), ((dataa[12..12] $ datab_node[12..12]) $ add_sub_cella[11].cout), ((dataa[11..11] $ datab_node[11..11]) $ add_sub_cella[10].cout), ((dataa[10..10] $ datab_node[10..10]) $ add_sub_cella[9].cout), ((dataa[9..9] $ datab_node[9..9]) $ add_sub_cella[8].cout), ((dataa[8..8] $ datab_node[8..8]) $ add_sub_cella[7].cout), ((dataa[7..7] $ datab_node[7..7]) $ add_sub_cella[6].cout), ((dataa[6..6] $ datab_node[6..6]) $ add_sub_cella[5].cout), ((dataa[5..5] $ datab_node[5..5]) $ add_sub_cella[4].cout), ((dataa[4..4] $ datab_node[4..4]) $ add_sub_cella[3].cout), ((dataa[3..3] $ datab_node[3..3]) $ add_sub_cella[2].cout), ((dataa[2..2] $ datab_node[2..2]) $ add_sub_cella[1].cout), ((dataa[1..1] $ datab_node[1..1]) $ add_sub_cella[0].cout), ((dataa[0..0] $ datab_node[0..0]) $ main_cin_wire));
	cout = add_sub_cella[31].cout;
	datab_node[] = (! datab[]);
	main_cin_wire = B"1";
	result[] = add_sub_cella[].sout;
END;
--VALID FILE