sign_div_unsign_mhg.tdf

以cyclone系列的EP2C5Q208为核心的实验板程序.包括流水灯,I2C存储器.SPI存储器,数码管,串口,LCD等

--sign_div_unsign DEN_REPRESENTATION="UNSIGNED" DEN_WIDTH=4 LPM_PIPELINE=0 MAXIMIZE_SPEED=5 NUM_REPRESENTATION="UNSIGNED" NUM_WIDTH=8 denominator numerator quotient remainder
--VERSION_BEGIN 5.1 cbx_cycloneii 2005:08:30:10:31:44:SJ cbx_lpm_abs 2005:08:17:17:24:32:SJ cbx_lpm_add_sub 2005:09:30:12:13:06:SJ cbx_lpm_divide 2005:03:24:20:40:32: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 cbx_util_mgl 2005:09:13:05:23:22:SJ  VERSION_END


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FUNCTION alt_u_div_3td (denominator[3..0], numerator[7..0])
RETURNS ( den_out[3..0], quotient[7..0], remainder[3..0]);
FUNCTION add_sub_8i8 (cin, dataa[3..0], datab[3..0])
RETURNS ( result[3..0]);

--synthesis_resources = lut 17 
SUBDESIGN sign_div_unsign_mhg
( 
	denominator[3..0]	:	input;
	numerator[7..0]	:	input;
	quotient[7..0]	:	output;
	remainder[3..0]	:	output;
) 
VARIABLE 
	divider : alt_u_div_3td;
	adder : add_sub_8i8;
	gnd_wire	: WIRE;
	norm_num[7..0]	: WIRE;
	protect_quotient[7..0]	: WIRE;
	protect_remainder[3..0]	: WIRE;

BEGIN 
	divider.denominator[] = denominator[];
	divider.numerator[] = norm_num[];
	adder.cin = gnd_wire;
	adder.dataa[] = denominator[];
	adder.datab[] = protect_remainder[];
	gnd_wire = B"0";
	norm_num[] = numerator[];
	protect_quotient[] = divider.quotient[];
	protect_remainder[] = divider.remainder[];
	quotient[] = protect_quotient[];
	remainder[] = protect_remainder[];
END;
--VALID FILE