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fghellar
Bodhisattva
Joined: 10 Apr 2002
Posts: 856
Location: Porto Alegre, BR
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 Posted: Wed Jun 19, 2002 5:12 pm Post subject: i386 i486 i586 i686 etc |
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When reading this thread, I went to http://www.sandpile.org/ looking for some info. Under the "impl" section there is some good info about many processors.
But I got confused. The AMD K6 is listed as Family 80586, 6th Generation. And the NexGen Nx686 is even "worse": Family 80386, 6th Generation!
What makes a given processor be classified as e.g. i686? Family? Generation? Both? None?
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lx
Veteran
Joined: 28 May 2002
Posts: 1012
Location: Netherlands
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| Posted: Wed Jun 19, 2002 9:48 pm Post subject: |
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80686 is The machine instructions it supports. A generation is a set of chips based on the same techniques from a certain manufacture.
| Quote: | | Fifth Generation (Pentium Class) Intel Chipsets |
athlon is amd's 7th generation of AMD chips, (both athlon / duron), they support 686 instruction set and more.
Well I forgot my point, Cya lX.
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Forge
Tux's lil' helper
Joined: 20 Jun 2002
Posts: 125
Location: KOP, PA, USA
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| Posted: Thu Jun 20, 2002 4:23 pm Post subject: |
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Nexgens weren't even actually 386 chips, they were just 386 compatible (thus Sandpile's listing). They were RISC CPUs with an x86<->RISC translator on another chip. The later Nexgens were called K6s, after AMD bought Nexgen.
The K6s were not fully i686, either. There are a few differences that make them ineligable.
Athlons are full i786 chips, though, while Pentium 4's are not. 
According to Intel, the P4 is i1586, though they clam up if you ask what happened to i886 through i1486.
In other words, don't worry about it too much, just remember:
i486 = 486 and below
i586 = Pentium/Pentium MMX and K6-*
i686 = Pentium Pro through Pentium II and Classic/Tbird Athlons, sub-1GHz Durons
i786 = Athlon XP/MP/4, Durons at 1GHz+ and Pentium III
i1586 = Pentium 4
i886 would probably be AMD's upcoming Hammer series, but since Intel defines the i*86 specs, there won't be one. |
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id10t
Tux's lil' helper
Joined: 18 May 2002
Posts: 100
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| Posted: Fri Jun 21, 2002 1:49 am Post subject: |
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| Quote: | | i486 = 486 and below |
Wrong. i486 is 486. You forgot about i386 (386 and up), which is the "core" instruction set that all 386+ chips support.
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Forge
Tux's lil' helper
Joined: 20 Jun 2002
Posts: 125
Location: KOP, PA, USA
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| Posted: Fri Jun 21, 2002 6:28 am Post subject: |
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Doh. I shouldn't be allowed to post last thing in my day.
Should have been more like:
i286 and below = here be demons
i386 = 386 and up, all modern CPUs
i486 == 486 |
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new2lin
n00b
Joined: 11 Jun 2002
Posts: 33
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| Posted: Fri Jun 21, 2002 6:20 pm Post subject: |
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| So let me get this straight...I have a computer with a K6-2 366mhz CPU so I need to use the stage1 tarball, but if I swap it out with an older Pentium 2 MMX 200MHZ I can use the stage3 tarball? Is this right?? |
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Forge
Tux's lil' helper
Joined: 20 Jun 2002
Posts: 125
Location: KOP, PA, USA
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| Posted: Fri Jun 21, 2002 7:31 pm Post subject: |
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Yep! You got it on the first try.
....
Wow. You strap up a stage one on a K6-2 366? How long does that take? |
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carpman
Advocate
Joined: 20 Jun 2002
Posts: 2202
Location: London - UK
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| Posted: Sat Jun 22, 2002 3:06 pm Post subject: |
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| Forge wrote: | Yep! You got it on the first try.
....
Wow. You strap up a stage one on a K6-2 366? How long does that take? |
i did it on a cyrix gxm 266 and it took 9hrs |
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Lovechild
Advocate
Joined: 17 May 2002
Posts: 2858
Location: Århus, Denmark
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| Posted: Sat Jun 22, 2002 3:34 pm Post subject: |
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| I bootstrapped on a 100MHz pentium - took ~20 hours. |
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CoronaLover
Retired Dev
Joined: 20 Jun 2002
Posts: 163
Location: Rosh-ha'ayin, Israel
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| Posted: Sat Jun 22, 2002 3:53 pm Post subject: |
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| Forge wrote: |
i886 would probably be AMD's upcoming Hammer series, but since Intel defines the i*86 specs, there won't be one. |
well actualy the hammer is i886-64  |
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Forge
Tux's lil' helper
Joined: 20 Jun 2002
Posts: 125
Location: KOP, PA, USA
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| Posted: Sat Jun 22, 2002 8:06 pm Post subject: |
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| You guys are masochists. I like my 2 and 3 hour bootstraps, don't think I could tolerate much more. |
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TripKnot
Apprentice
Joined: 29 May 2002
Posts: 213
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| Posted: Sun Jun 23, 2002 7:22 pm Post subject: |
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| Quote: |
So let me get this straight...I have a computer with a K6-2 366mhz CPU so I need to use the stage1 tarball, but if I swap it out with an older Pentium 2 MMX 200MHZ I can use the stage3 tarball? Is this right?? |
I think your a bit screwed up here. There was never a PII in a Socket7 or super socket7 format. Nor were they ever realeased at 200MHz. I believe you have a P1 200 which is 586 so no you can't use the stage3 tarball. |
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Forge
Tux's lil' helper
Joined: 20 Jun 2002
Posts: 125
Location: KOP, PA, USA
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| Posted: Mon Jun 24, 2002 3:31 am Post subject: |
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| A theoretical P2/233 Socket 7, though, would be fine. |
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Kernel & Hardware
