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   Pissed Hippo (sun@shitposter.world)'s status on Thursday, 27-Jun-2024 22:33:03 JST Pissed Hippo
   Huh. The only reason Windows XP didn't run on a 486 was the use of a single Pentium instruction.
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     narcolepsy and alcoholism :flag: (hj@shigusegubu.club)'s status on Thursday, 27-Jun-2024 22:34:27 JST narcolepsy and alcoholism :flag:

     in reply to
     @sun halt and catch fire instruction?
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     Pissed Hippo (sun@shitposter.world)'s status on Thursday, 27-Jun-2024 22:35:11 JST Pissed Hippo

     in reply to

     • narcolepsy and alcoholism :flag:
     @hj it's an instruction that transfers 8 bytes at a time instead of just one.
     
     Apparently somebody patched a version of XP to use the single byte instruction 8 times and it runs on a 486.
     narcolepsy and alcoholism :flag: likes this.
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     narcolepsy and alcoholism :flag: (hj@shigusegubu.club)'s status on Thursday, 27-Jun-2024 22:36:30 JST narcolepsy and alcoholism :flag:

     in reply to
     @sun can't run good probably tho, worse than atom i imagine
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     H. Faust (hfaust@shitposter.world)'s status on Thursday, 27-Jun-2024 23:42:32 JST H. Faust

     in reply to
     @sun Windows XP will never die isn't it?
     Pissed Hippo likes this.
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     Phantasm (phnt@fluffytail.org)'s status on Thursday, 27-Jun-2024 23:42:42 JST Phantasm

     in reply to
     @sun run != usable. It's sluggish on a Pentium II and I can't imagine how bad it would be on a 486 (especially the base non double-clocked ones.)
     Pissed Hippo likes this.
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     Pissed Hippo (sun@shitposter.world)'s status on Friday, 28-Jun-2024 02:31:48 JST Pissed Hippo

     in reply to

     • condret :verified: :ancom:
     @condret CMPXCHG8B
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     condret :verified: :ancom: (condret@fedi.absturztau.be)'s status on Friday, 28-Jun-2024 02:31:50 JST condret :verified: :ancom:

     in reply to
     @sun what instruction?
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     Pissed Hippo (sun@shitposter.world)'s status on Friday, 28-Jun-2024 02:50:26 JST Pissed Hippo

     in reply to

     • condret :verified: :ancom:
     @condret Some German guy hacked XP to run without it
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     condret :verified: :ancom: (condret@fedi.absturztau.be)'s status on Friday, 28-Jun-2024 02:50:28 JST condret :verified: :ancom:

     in reply to
     @sun is it used with lock prefix? if so i could see why tnis is problem
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      (mint@ryona.agency)'s status on Friday, 28-Jun-2024 03:39:29 JST 

     in reply to

     • condret :verified: :ancom:
     @sun @condret It still needs CPUID somewhere deeper in the system, so it only works with late 486es that implement it.
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     Pissed Hippo (sun@shitposter.world)'s status on Friday, 28-Jun-2024 03:39:33 JST Pissed Hippo

     in reply to

     • 
     • condret :verified: :ancom:
     @mint @condret didn't intel remove cpuid
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      (mint@ryona.agency)'s status on Friday, 28-Jun-2024 03:43:13 JST 

     in reply to

     • condret :verified: :ancom:
     @sun @condret Probably. People in that thread report success on Am486DX4, but not on Intel DX4.
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      (mint@ryona.agency)'s status on Friday, 28-Jun-2024 03:46:18 JST 

     in reply to

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     • condret :verified: :ancom:
     @sun @condret XP could also apparently boot on SuperEGA cards, and it looks quite aesthetic there. Unless either 86box or the emulated card itself somehow manages to partially emulate VGA modes.
     Screenshot_20240527_200229.png
     Screenshot_20240527_203340.png
     Screenshot_20240527_225304.png
     Screenshot_20240527_225454.png
     Pissed Hippo likes this.
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     Pissed Hippo (sun@shitposter.world)'s status on Friday, 28-Jun-2024 03:47:09 JST Pissed Hippo

     in reply to

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     • condret :verified: :ancom:
     @mint @condret maybe it was just an overlap of vesa modes and xp couldn't tell the difference
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      (mint@ryona.agency)'s status on Friday, 28-Jun-2024 03:48:58 JST 

     in reply to

     • condret :verified: :ancom:
     @sun @condret Maybe. When I set resultion to more conventional 640x350, it froze shortly after ntldr. Apparently some (physical) SuperEGA cards do offer VGA emulation.
     https://www.vogons.org/viewtopic.php?t=96532
     Pissed Hippo likes this.