Re: gEDA-user: icarus, fork, and recursive tasks

[John Griessen <john@xxxxxxxxxxxxxx>]

On 11/06/2010 10:16 PM, John Griessen wrote:

> begin
> at posedge delay # 40  assign A + B or C --> mcu_cson
> end

Should be more like:

at posedge clock1 delay # 40
  begin
  assign A + B or C --> mcu_cson
  assign A . D  --> mcu_wron

  end

at posedge clock1 delay # 60
  begin
  assign E . A  --> mcu_wron
  end

That is to get functions of instructions or whatever triggers your event,
then add different delays to different wires.

Each variable above could be a vector such as:   mcu_wron[15:0]    mcu_wron[15:0]  D[15:0]

Some of your triggers are going to come from one wire.  There's a shorthand for
extending one bit into as many as you want -- forgot it...  do that with the one bit signal
before anding it with something to trigger a word transition by the assign statement.

I doubt your really want anything recursive.
Everything that's a primitive function in verilog happens in parallel all the time, not as
a procedure.
John G


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