Re: [sv-bc] unsized number literals

Hello Shalom,

Questa 6.6b display 2'b11.

-dhiRAj

Bresticker, Shalom wrote:
>
> The conclusion of that thread seemed to be that 2'b11 would be the
> correct answer here.
>
>
>
> Shalom
>
>
>
> *From:* Surya Pratik Saha [mailto:spsaha@cal.interrasystems.com]
> *Sent:* Wednesday, August 04, 2010 2:53 PM
> *To:* Dhiraj Kumar Prasad
> *Cc:* Bresticker, Shalom; sv-bc@eda.org
> *Subject:* Re: [sv-bc] unsized number literals
>
>
>
> Hi Dhiraj,
> I don't agree, I did not get anything explicit in LRM supporting your
> answer. We have already discussed about that in past. See the mail
> thread with subject "Query about '1" around early July 2008 time frame.
>
> Regards
> Surya
>
>
>
> -------- Original Message --------
> Subject: Re:[sv-bc] unsized number literals
> From: Dhiraj Kumar Prasad <dhiraj@cal.interrasystems.com>
> <mailto:dhiraj@cal.interrasystems.com>
> To: Bresticker, Shalom <shalom.bresticker@intel.com>
> <mailto:shalom.bresticker@intel.com>
> Cc: "sv-bc@eda.org" <mailto:sv-bc@eda.org> <sv-bc@eda.org>
> <mailto:sv-bc@eda.org>, Dhiraj Kumar Prasad
> <dhiraj@cal.interrasystems.com> <mailto:dhiraj@cal.interrasystems.com>
> Date: Wednesday, August 04, 2010 5:09:57 PM
>
> Hello Shalom,
>
> The correct behavior should be 2'b11 . Even I have tested the three
> simulator and all are giving 2'b11 as output
> with One of them is showing warning as port size differ in port
> connection.
>
> -dhiRAj
>
>
>
> Bresticker, Shalom wrote:
>
> Consider the following code:
>
>
>
> module top;
>
> bot bot('1);
>
> endmodule
>
>
>
>
>
> module bot(input [1:0] i);
>
> initial #10 $displayb(i);
>
> endmodule
>
>
>
> We have a port connection of '1 to a 2-bit port.
>
>
>
> I would expect '1 to expand to 2'b11 without a problem.
>
>
>
> In fact, the three simulators I tested showed different behaviors.
>
>
>
> One did in fact show that i was assigned 2'b11 without any problem.
>
>
>
> One simulator also assigned 2'b11 to i, but also issued a port-size
> mismatch warning.
>
>
>
> One simulator also issued such a warning and assigned 2'bz1 to i.
>
>
>
> What is the correct behavior?
>
>
>
> Thanks,
>
> Shalom
>
>
>
>
>
> Shalom Bresticker
>
> Intel LAD DA, Jerusalem, Israel
>
> +972 2 589 6582 (office)
>
> +972 54 721 1033 (cell)
>
> http://www.linkedin.com/in/shalombresticker
>
>
>
>
>
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