add_sub_ke8.tdf

基于fpga的屏幕测试程序

--lpm_add_sub DEVICE_FAMILY="Cyclone" LPM_DIRECTION="SUB" LPM_WIDTH=1 cout dataa datab result
--VERSION_BEGIN 5.0 cbx_cycloneii 2004:12:20:14:28:52:SJ cbx_lpm_add_sub 2005:04:12:13:30:42:SJ cbx_mgl 2005:05:19:13:51:58:SJ cbx_stratix 2005:06:02:09:53:04:SJ cbx_stratixii 2004:12:22:13:27:12:SJ  VERSION_END


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--synthesis_resources = 
SUBDESIGN add_sub_ke8
( 
	cout	:	output;
	dataa[0..0]	:	input;
	datab[0..0]	:	input;
	result[0..0]	:	output;
) 
VARIABLE 
	carry_eqn[0..0]	: WIRE;
	cin_wire	: WIRE;
	datab_node[0..0]	: WIRE;
	sum_eqn[0..0]	: WIRE;

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