Reply by Wilco Dijkstra June 20, 20062006-06-20
"Michele Russo" <russomiche@yahoo.it> wrote in message 
news:e78kr4$88v$1@news.cineca.it...
> Wilco Dijkstra wrote: >> That's because you didn't give enough information to answer it. >> For example, what definition of VLIW do you use in your paper? >> It is clear that Multiflow was a VLIW (28 instructions per cycle), >> but when does a LIW become a VLIW (or EPIC for that matter)? >> >> If you can also tell us how wide each the above architectures are, >> we will have enough information to answer your question. > > Thank you very much. My paper is about design space exploration of VLIW > architectures for embedded systems. In the related section of my paper, I > would like to present a list of commercial VLIW targeted for embedded > system which can be also classified as ASIP. I'm not sure that the > aforementioned VLIWs can be classified as ASIPs and for this reason I > wrote to this ng.
I'm not convinced the architectures you mentioned can all be categorized as VLIW in the first place. For example calling 64-bit instruction packets VLIW is a bit of a stretch.
> More precisaly this is the sentence I wrote in my paper: > > ASIP based on \emph{Very Long Instruction Word} (VLIW) > architectures~\cite{fisher_isca83} are emerging in the embedded > domain, especially for multimedia and communication > appplications. Examples include the TI C6x family, the Agere/Motorola > StarCore architecture, Sun's MAJC, Fujitsu's FR-V, ST's HP/ST Lx, > Philips' TriMedia. Architectures based on VLIW processors are > currently seen as answering the demand for modern, increasingly > complex embedded multimedia applications, given their capacity to > exploit high levels of performance while maintaining a reasonable > trade-off between hardware complexity, cost and power consumption.
But what about codesize?
> A reviewer of the paper states that "My understanding is that the > processors listed on page 2 are not actually ASIPs."
If you use a wide definition then most of them are not ASIP as they were intended as general purpose CPUs geared towards DSP. With a narrow definition obviously none are ASIPs. Crusoe is a good example of a ASIP VLIW. Wilco
Reply by Michele Russo June 20, 20062006-06-20
Wilco Dijkstra wrote:
> That's because you didn't give enough information to answer it. > For example, what definition of VLIW do you use in your paper? > It is clear that Multiflow was a VLIW (28 instructions per cycle), > but when does a LIW become a VLIW (or EPIC for that matter)? > > If you can also tell us how wide each the above architectures are, > we will have enough information to answer your question.
Thank you very much. My paper is about design space exploration of VLIW architectures for embedded systems. In the related section of my paper, I would like to present a list of commercial VLIW targeted for embedded system which can be also classified as ASIP. I'm not sure that the aforementioned VLIWs can be classified as ASIPs and for this reason I wrote to this ng. More precisaly this is the sentence I wrote in my paper: ASIP based on \emph{Very Long Instruction Word} (VLIW) architectures~\cite{fisher_isca83} are emerging in the embedded domain, especially for multimedia and communication appplications. Examples include the TI C6x family, the Agere/Motorola StarCore architecture, Sun's MAJC, Fujitsu's FR-V, ST's HP/ST Lx, Philips' TriMedia. Architectures based on VLIW processors are currently seen as answering the demand for modern, increasingly complex embedded multimedia applications, given their capacity to exploit high levels of performance while maintaining a reasonable trade-off between hardware complexity, cost and power consumption. A reviewer of the paper states that "My understanding is that the processors listed on page 2 are not actually ASIPs." What do you think? Regards, Michele
Reply by Wilco Dijkstra June 20, 20062006-06-20
"Michele Russo" <russomiche@yahoo.it> wrote in message 
news:e78ave$450$1@news.cineca.it...
> Jim Stewart wrote: >> Michele Russo wrote: >> >>> Hello all, >>> >>> Please, check one or more of the following which can be classified as >>> ASIP based on VLIW. >>> >>> [ ] TI C6x >>> [ ] Agere/Motorola StarCore >>> [ ] Sun MAJC >>> [ ] Fujitsu FR-V >>> [ ] ST Lx >>> [ ] Philips TriMedia >> >> >> Please do your own homework. > > It is a pity that nobody in this ng is able to reply to this question.
That's because you didn't give enough information to answer it. For example, what definition of VLIW do you use in your paper? It is clear that Multiflow was a VLIW (28 instructions per cycle), but when does a LIW become a VLIW (or EPIC for that matter)? If you can also tell us how wide each the above architectures are, we will have enough information to answer your question. Wilco
Reply by Michele Russo June 20, 20062006-06-20
Jim Stewart wrote:
> Michele Russo wrote: > >> Hello all, >> >> Please, check one or more of the following which can be classified as >> ASIP based on VLIW. >> >> [ ] TI C6x >> [ ] Agere/Motorola StarCore >> [ ] Sun MAJC >> [ ] Fujitsu FR-V >> [ ] ST Lx >> [ ] Philips TriMedia > > > Please do your own homework.
It is a pity that nobody in this ng is able to reply to this question. At any rate I adjure that I'm not a student! Regards, Michele
Reply by Michele Russo June 20, 20062006-06-20
CBFalconer wrote:
> My opinion is that you are still trying to get out of homework, and > your instructor marked you down for faking an earlier paper.
Thank you very much fou your kindly answer. Your comments are very useful!
Reply by CBFalconer June 19, 20062006-06-19
Michele Russo wrote:
> CBFalconer wrote: >> Michele Russo wrote: >> >>> Please, check one or more of the following which can be classified >>> as ASIP based on VLIW. >>> >>> [ ] TI C6x >>> [ ] Agere/Motorola StarCore >>> [ ] Sun MAJC >>> [ ] Fujitsu FR-V >>> [ ] ST Lx >>> [ ] Philips TriMedia >> >> You omitted your instructors email address. > > No. I'm an assistant researcher. A reviewer of a paper of mine > said that "the processors listed above are not actually ASIPs." > > I would like to know your opinion about that.
My opinion is that you are still trying to get out of homework, and your instructor marked you down for faking an earlier paper. -- "If you want to post a followup via groups.google.com, don't use the broken "Reply" link at the bottom of the article. Click on "show options" at the top of the article, then click on the "Reply" at the bottom of the article headers." - Keith Thompson More details at: <http://cfaj.freeshell.org/google/> Also see <http://www.safalra.com/special/googlegroupsreply/>
Reply by Jim Stewart June 19, 20062006-06-19
Michele Russo wrote:

> Hello all, > > Please, check one or more of the following which can be classified as > ASIP based on VLIW. > > [ ] TI C6x > [ ] Agere/Motorola StarCore > [ ] Sun MAJC > [ ] Fujitsu FR-V > [ ] ST Lx > [ ] Philips TriMedia
Please do your own homework.
Reply by Michele Russo June 19, 20062006-06-19
CBFalconer wrote:
> Michele Russo wrote: > >>Please, check one or more of the following which can be classified >>as ASIP based on VLIW. >> >>[ ] TI C6x >>[ ] Agere/Motorola StarCore >>[ ] Sun MAJC >>[ ] Fujitsu FR-V >>[ ] ST Lx >>[ ] Philips TriMedia > > > You omitted your instructors email address. >
No. I'm an assistant researcher. A reviewer of a paper of mine said that "the processors listed above are not actually ASIPs." I would like to know your opinion about that. Regards, Michele
Reply by CBFalconer June 19, 20062006-06-19
Michele Russo wrote:
> > Please, check one or more of the following which can be classified > as ASIP based on VLIW. > > [ ] TI C6x > [ ] Agere/Motorola StarCore > [ ] Sun MAJC > [ ] Fujitsu FR-V > [ ] ST Lx > [ ] Philips TriMedia
You omitted your instructors email address. -- "A man who is right every time is not likely to do very much." -- Francis Crick, co-discover of DNA "There is nothing more amazing than stupidity in action." -- Thomas Matthews
Reply by Michele Russo June 19, 20062006-06-19
Hello all,

Please, check one or more of the following which can be classified as 
ASIP based on VLIW.

[ ] TI C6x
[ ] Agere/Motorola StarCore
[ ] Sun MAJC
[ ] Fujitsu FR-V
[ ] ST Lx
[ ] Philips TriMedia

Thanks in advance,

Michele