🚀 go-pugleaf

In article <1992Apr3.222032.11639@jericho.uunet.uu.net> gord@jericho.uunet.uu.net (Gord Wait) writes:
>In article <1992Mar30.211350.14338@ncsu.edu> hdeshma@eos03a-16pa.eos.ncsu.edu (HARSHAVARDHAN  DESHMANE) writes:
>>
>>although the parameter declaration is intuitive to use,
>>can the same things be done by declaring the parameters
>>to integers?
>>In what way is a 'parameter' different from an integer? Sorry
>>if this sounds silly, but I am unclear about the real reason
>>for the declaration.
>>
>>harsh
>>________________________________________________________________________________
>>Harshavardhan Deshmane                                   * no fancy stuff*
>>ECE Dept, North Carolina State University
>>________________________________________________________________________________
>
>For one thing, parameters can be altered when you instantiate a model.
>For example:
>
>	module testparams;
>	parameter p1 = 5;
>	parameter p2 = 8;
>
>	initial
>	  begin
>	    $write("p1 is %d, p2 is %d\n", p1, p2);
>	  end
>	endmodule
>
>
>Now when you use it you can change the values of P1 and P2 like this:
>
>	module junk;
>	
>	item1 testparams;
>	item2 #(1, 2) testparams;
>	item3 #(9,10) testparamsl
>
>	endmodule
>
>In the above example item1 will print out the original values of 5 and
>8, item2 will print out values of 1 and 2, and item three will print
>out values of 9 and 10 for the p1 and p2 parameters. RTFM, page 12-8
>volume 1 of Cadence Verilog 1.6.0.1
>
>Gord
>
>
>-- 
>Gord Wait 	SMOS Systems Vancouver Design Centre
>uunet!jericho!gord
>
You can also reference the parameters hierarchacly
	module junk;
	defparam junk.item4.p1=123; //this replaces p1 in
					//instance item4
 	testparams item1; 		//NOTE:
	testparams #(1, 2) item2;	//paramters appear after
	testparams #(9,10) item3;	//module name and before
	testparams #(9,10) item4;	//instance names.
	endmodule			//(This was an error in Gord's
					//example)