Re: Verilog macro issue

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From	Chris Hinsley <chris.hinsley@gmail.com>
Newsgroups	comp.lang.forth
Date	Mon, 11 Apr 2011 20:16:57 +0100
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Here's what I ended up with after my chat on the Verilog news group.

Many thanks to Johnathon Bromley for his crash tutoring on Verilog. :)

module enc(i, o);
	parameter OUT_BITS = 2;
	localparam IN_BITS = 1 << OUT_BITS;
	input [IN_BITS-1:0] i;
	output [OUT_BITS-1:0] o;
	reg [OUT_BITS-1:0] o;
	always @(*)
	begin
		integer n;
		o = 0;
		for (n = 0; n < IN_BITS; n += 1)
			if (i[n]) o |= n;
	end
endmodule

This turns into very nice hardware in Quartus.

Chris

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Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-02 19:36 +0100
  Re: Verilog macro issue Jan Coombs <jan_2011-02@murray-microft.co.uk> - 2011-04-02 20:26 +0100
    Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-02 20:31 +0100
      Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-02 20:43 +0100
        Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-02 21:36 +0100
          Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-02 22:12 +0100
    Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-02 23:01 +0100
      Re: Verilog macro issue Jan Coombs <jan_2011-02@murray-microft.co.uk> - 2011-04-02 23:33 +0100
        Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-03 03:58 +0100
          Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-03 12:27 +0100
            Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-03 13:20 +0100
              Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-07 23:26 +0100
                Re: Verilog macro issue Jan Coombs <jan_2011-02@murray-microft.co.uk> - 2011-04-10 23:20 +0100
              Re: Verilog macro issue rickman <gnuarm@gmail.com> - 2011-04-11 10:36 -0700
  Re: Verilog macro issue Chris Hinsley <chris.hinsley@gmail.com> - 2011-04-11 20:16 +0100

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