--lpm_add_sub DEVICE_FAMILY="Cyclone" LPM_DIRECTION="SUB" LPM_WIDTH=2 cout 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


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--  without limitation, that your use is for the sole purpose of 
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--synthesis_resources = 
SUBDESIGN add_sub_le8
( 
	cout	:	output;
	dataa[1..0]	:	input;
	datab[1..0]	:	input;
	result[1..0]	:	output;
) 
VARIABLE 
	carry_eqn[1..0]	: WIRE;
	cin_wire	: WIRE;
	datab_node[1..0]	: WIRE;
	sum_eqn[1..0]	: WIRE;

BEGIN 
	carry_eqn[] = ( ((dataa[1..1] & datab_node[1..1]) # ((dataa[1..1] # datab_node[1..1]) & carry_eqn[0..0])), ((dataa[0..0] & datab_node[0..0]) # ((dataa[0..0] # datab_node[0..0]) & cin_wire)));
	cin_wire = B"1";
	cout = carry_eqn[1..1];
	datab_node[] = (! datab[]);
	result[] = sum_eqn[];
	sum_eqn[] = ( ((dataa[1..1] $ datab_node[1..1]) $ carry_eqn[0..0]), ((dataa[0..0] $ datab_node[0..0]) $ cin_wire));
END;
--VALID FILE