Re: Enhancement: Dynamic Values on attributes.

From: Krishna Garlapati (krishna@synplicity.com)
Date: Fri Oct 31 2003 - 11:04:03 PST

  • Next message: Adam Krolnik: "Re: Enhancement: Dynamic Values on attributes."

    Looks like System Verilog does it nicely. But how does the tool
    figure out that you are dealing with strings in parameter unless
    the declaration was :

    parameter string astr = {"R",8'h30 + i,"C0.S0"}; // i=2 => astr=R2C0.S0

    - Krishna.

    Adam Krolnik wrote:

    >
    >
    > Hi all;
    >
    >
    > It's too bad one can't write
    >
    > (* xc_rloc={"R",i,"C0.S0"}, xc_uset="SET1" *)
    >
    > and get the desired behavior.
    >
    > Though, it seems that SystemVerilog, with their string type, can do this.
    > [* Table 3-2 that describes string concatenation is not very clear on
    > cases like this.]
    >
    >
    > If "i" was only expected to be a single character, one can today write:
    >
    > parameter astr = {"R",8'h30 + i,"C0.S0"}; // i=2 => astr=R2C0.S0
    >
    > I.e.
    >
    > module test;
    >
    > parameter astr = {"R",8'h30 + 8'd2,"C0.S0"};
    > //(* astr = {"R",8'h30 + 8'd2,"C0.S0"} *)
    > (* astr = astr *)
    > reg adam;
    > initial $display("astr parameter is %s.\n", astr);
    >
    > endmodule
    >
    >
    >
    >
    > 

    -- 
- Krishna Garlapati, Synplicity Inc. (408)215-6152

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