sorear changed the topic of #riscv to: RISC-V instruction set architecture | https://riscv.org | Logs: https://libera.irclog.whitequark.org/riscv
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<jimwilson> try a search for "Intel Horse Creek"
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<SpaceCoaster> Perhaps it is the old trick, embrace, extend, extinguish. https://en.wikipedia.org/wiki/Embrace,_extend,_and_extinguish
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<SpaceCoaster> Make a token investment,
<SpaceCoaster> Then muddy the waters with proprietary changes and tying up the process. That amount of money might be sufficient to make others pause before they enter the market. Sorry to be such a cynic.
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<geertu> SpaceCoaster: Our competitor wanted to buy our CPU core provider, so let's switch to RISC-V, and switch to another competitor to bake our chips?
<geertu> + the foundry silo effect
<SpaceCoaster> They encourage RISC-V on their terms / foundry / IP
<sorear> this is intel's regularly scheduled attempt to enter a market other than windows PCs and servers
<sorear> or possibly setup to spin off their manufacturing division like AMD did a few years ago; not following the financials close enough to be sure
<muurkha> when did AMD spin off their manufacturing division? 01996?
<sorear> wiki says globalfoundries started in 2009, haven't looked deeper
<muurkha> interesting, apparently 02008 and 02009
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<SpaceCoaster> jimwilson: Do you think it will help SiFive ship chips?
<muurkha> I wonder if it means SiFive will have to compete with Intel
<muurkha> Intel looted the fastest ARM implementation in the world from the wreckage of DEC after torpedoing DEC with patent lawsuits
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<muurkha> then they just let it languish until discontinuing it 5 years later: https://en.wikipedia.org/wiki/StrongARM
<muurkha> but the Intel of today is not the Intel of 01997
<gordonDrogon> My guess might be that Intel will use a RV core for internal PC control stuff - and run Minix on it ...
<gordonDrogon> although I don't know what they currently use...
<muurkha> heh
<sorear> I doubt this has anything to do with the PC market
<muurkha> well, Pentium, but I mean the Pentium is an i386
<gordonDrogon> that's the thing I was thinking of. so they have essentially a 386. that makes sense since they make it ...
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<gordonDrogon> Hm. I have a 'muldiv' function to write in RV32IM - that's a function that takes 2 x 32-bit numbers, multiplies to give a 64-bit result then divides the result with a 32-bit number - anyone know if there are any libraries already out there that might do this, or something similar?
* gordonDrogon finds MULH (doh!) but still need a 32/64 divide....
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<[exa]> gordonDrogon: the output is 2 registers of the 64b result?
<gordonDrogon> [exa], yes - if possible, avoiding using any RAM if possible...
<gordonDrogon> it's a function used in my BCPL system to help with scaling for fied point arithmetic...
<gordonDrogon> *fixed
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<[exa]> how much instructions do you expect to use on it? there's one obvious 32-ish-instruction by just doing the division first on the upper part, then bitshifting the remainder by bits and adding that to the result
<gordonDrogon> yes, a long-division style would work - it's not commonly used.
<gordonDrogon> in my exsiting 65816 system I do it the long way - subtract and shift..
<gordonDrogon> looks like gcc calls __divdi3 so I'll find the source for that...
<[exa]> yes, just looking at it
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<gordonDrogon> it's in C )-:
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<[exa]> you can compile it to get assembly :]
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<gordonDrogon> well, yes :)
<[exa]> linux kernel uses the bit-by-bit approach too
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<gordonDrogon> guaranteed to work with no library support, I guess.
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<The_Decryptor> 23:19 <sorear> or possibly setup to spin off their manufacturing division like AMD did a few years ago; < Yep, "Intel Foundry Services", they launched it last year
<JanC> Intel are still using most of their own capacity today, but they have some leftover capacity that doesn't match what they need
<JanC> it makes sense to not let that sit idle...
<JanC> AMD split off their foundries because they needed the money from selling them
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