RE: [vhdl-200x-ft] More on ?? in FT18

From: Stephen A. Bailey <stephen_at_.....>
Date: Tue Apr 05 2005 - 02:22:08 PDT
OK with me. 

-Steve Bailey

> Folks,
> 
> A further consideration just occurred to me on whether "??" 
> should be implicitly or explicitly defined for BIT in STANDARD.
> 
> The rules for locally static expressions include implicitly 
> defined operators.  If "??" is explicitly defined, then an 
> expression such as ?? '1'
> would not be locally static.  To make it locally static, we 
> would have to make a specific rule for it.  Seems like it 
> would be cleaner all round just to make "??" for BIT an 
> implicit declaration.
> 
> End $0.02.
> 
> Cheers,
> 
> PA
> 
> --
> Dr. Peter J. Ashenden                        peter@ashenden.com.au
> Ashenden Designs Pty. Ltd.                   www.ashenden.com.au
> PO Box 640                                   Ph:  +61 8 8339 7532
> Stirling, SA 5152                            Fax: +61 8 8339 2616
> Australia                                    Mobile: +61 414 70 9106
> 
> 
Received on Tue Apr 5 02:22:10 2005

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