On 2018-01-26 20:38, Clem Cole wrote:


On Fri, Jan 26, 2018 at 2:17 PM, Johnny Billquist <b...@softjar.se <mailto:b...@softjar.se>> wrote:


    I don't think BLISS-16 ran on PDP-10, but I could be wrong. I've
never seen or heard anything about BLISS-16 running on Alpha or beyond.
​Gem did exactly that conceptually.​

Wasn't/isn't GEM the compiler core used for most languages later on? I didn't think BLISS itself was using GEM, but I don't know at all. However, I believe/assume/think I heard that GEM itself is written in BLISS.

    I guess it could be possible to do, but I sortof doubt anyone did.

​It's a testing problem.   DEC was not only doing emergency fixes ​for the PDP-11 by the time of Alpha, so I agree.   I don't think TLG did anything with the EOL systems by then, they had their hands full with Vax, Alpha and 386; plus all the front ends.

When the Alpha came out, the PDP-11 was not dead. But I would not expect that much work was done anymore. They had tools and products, which they continued to use and improve. But moving to a new platform for any of it would have been very doubtful.

    If anyone have the bits, I would be very interested in hearing about
    it, as I would like to recompile some bits and pieces. (Any BLISS-16
    compiler would be a good start.)

​VMSinc had the Gem compiler as part of their license.   As I say, they have Neil hacking on it again.   But I believe that he is only worried about Itanium and INTEL*64 at the moment.​  I also do not know what they are doing with the front-ends.   Clearly, they are working with the BLISS front-end, but I have not idea what HP has them doing for the other languages.  I would expect to see C/C++/Fortran brought forward at least through the dialect that DEC/Compaq/HP had at EOL, so customer code will recompile, since I know of OVMS code in those three languages.

Yes, BLISS is being worked on, as is GEM. I saw some comment by on the progress and issues around this from some VSI person not long ago.
But all that is far removed from anything PDP-11 related.

  Johnny

--
Johnny Billquist                  || "I'm on a bus
                                  ||  on a psychedelic trip
email: b...@softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol
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