alt_u_div_n2e.tdf

用FPGA做的DDS函数信号发生器

--alt_u_div DEVICE_FAMILY="Cyclone II" LPM_PIPELINE=0 MAXIMIZE_SPEED=5 WIDTH_D=10 WIDTH_N=14 WIDTH_Q=14 WIDTH_R=10 denominator numerator quotient remainder
--VERSION_BEGIN 5.1 cbx_cycloneii 2005:12:13:10:36:54:SJ cbx_lpm_abs 2005:08:16:22:24:32:SJ cbx_lpm_add_sub 2005:11:02:10:42:42:SJ cbx_lpm_divide 2005:03:24:00:40:32:SJ cbx_mgl 2006:01:12:16:15:18:SJ cbx_stratix 2005:12:28:11:18:26:SJ cbx_stratixii 2005:11:02:10:43:56:SJ cbx_util_mgl 2005:09:12:10:23:22:SJ  VERSION_END


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FUNCTION add_sub_6m8 (dataa[0..0], datab[0..0])
RETURNS ( cout, result[0..0]);
FUNCTION add_sub_7m8 (dataa[1..0], datab[1..0])
RETURNS ( cout, result[1..0]);
FUNCTION add_sub_nn8 (dataa[10..0], datab[10..0])
RETURNS ( cout, result[10..0]);
FUNCTION add_sub_8m8 (dataa[2..0], datab[2..0])
RETURNS ( cout, result[2..0]);
FUNCTION add_sub_9m8 (dataa[3..0], datab[3..0])
RETURNS ( cout, result[3..0]);
FUNCTION add_sub_am8 (dataa[4..0], datab[4..0])
RETURNS ( cout, result[4..0]);
FUNCTION add_sub_bm8 (dataa[5..0], datab[5..0])
RETURNS ( cout, result[5..0]);
FUNCTION add_sub_cm8 (dataa[6..0], datab[6..0])
RETURNS ( cout, result[6..0]);
FUNCTION add_sub_dm8 (dataa[7..0], datab[7..0])
RETURNS ( cout, result[7..0]);
FUNCTION add_sub_em8 (dataa[8..0], datab[8..0])
RETURNS ( cout, result[8..0]);
FUNCTION add_sub_mn8 (dataa[9..0], datab[9..0])
RETURNS ( cout, result[9..0]);

--synthesis_resources = 
SUBDESIGN alt_u_div_n2e
( 
	den_out[9..0]	:	output;
	denominator[9..0]	:	input;
	numerator[13..0]	:	input;
	quotient[13..0]	:	output;
	remainder[9..0]	:	output;
) 
VARIABLE 
	add_sub_0 : add_sub_6m8;
	add_sub_1 : add_sub_7m8;
	add_sub_10 : add_sub_nn8;
	add_sub_11 : add_sub_nn8;
	add_sub_12 : add_sub_nn8;
	add_sub_13 : add_sub_nn8;
	add_sub_2 : add_sub_8m8;
	add_sub_3 : add_sub_9m8;
	add_sub_4 : add_sub_am8;
	add_sub_5 : add_sub_bm8;
	add_sub_6 : add_sub_cm8;
	add_sub_7 : add_sub_dm8;