digitalfilter.tdf

来自「用於32位色控制的LED大屏幕的AHDL代碼」· TDF 代码 · 共 28 行

subdesign digitalfilter
(
	datain, inclk				: input;
	sdataout, q[3..0], adataout	: output;
)

variable
	datadff[3..0]		: dff;
	
begin
	datadff[0].d = datain;
	datadff[1] = datadff[0];
	datadff[2] = datadff[1];
	datadff[].clk = inclk;
	
	adataout = (datadff[0] & datadff[1]) # (datadff[0] & datadff[2])
			 # (datadff[1] & datadff[2]);

	datadff[3] = adataout;
	sdataout = datadff[3];
--	sdataout = adataout;
	q[] = datadff[];			
end;