Subject: Re: [vhdl-200x-dta] Comments on fifo and event proposal
From: Francoise Martinolle (fm@cadence.com)
Date: Fri Aug 01 2003 - 08:51:03 PDT
The link http: //forest/suave/... is not a correct URL. but the language
description can be found at:
http://www.ashenden.com.au/suave/suave-descr-july-1999.pdf
At 10:08 PM 8/1/2003 +0930, Peter Ashenden wrote:
>Folks,
>
>The FIFO and Event proposals (TBV4 and TBV7) both address a requirement to
>provide a higher-level form of communication and synchronization than
>signals. I'd like to draw your attention to some work Phil Wilsey and I did
>several years ago addressing this requirement (among others). See the
>material on SUAVE at www.ashenden.com.au/suave.html. In particular, see the
>SUAVE Language Description at http://forest/suave/suave-descr-july-1999.pdf.
>
>In SUAVE, we provided FIFO channels as an abstract communication and
>synchronization mechanism. A channel could be declared to be unbounded
>(indefinite capacity) or bounded (fixed capacity, including zero). The
>difference between non-zero and zero capacity gives asynchronous versus
>synchronous communication. We provided send and receive operations, as well
>as non-deterministic choice based on channel readiness. We also provided
>for interface channels (in the same way that ports are interface signals).
>Finally, we provided for data-less channels, in which data-less events were
>queued.
>
>It seems that the channel and associated features provides what is required
>of both FIFOs and Events, plus more, in a way that integrates with the
>existing language cleanly. I'd be interested to hear other peoples views.
>
>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
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