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   ✧✦✶✷Catherine✷✶✦✧ (whitequark@mastodon.social)'s status on Tuesday, 24-Dec-2024 14:18:04 JST ✧✦✶✷Catherine✷✶✦✧

   you've heard of PCIe-over-115200-UART but i'm currently virtualizing a Yamaha PSS-A50 over VS Code Live Share and OpenOCD

   • Haelwenn /элвэн/ :triskell: likes this.
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     ✧✦✶✷Catherine✷✶✦✧ (whitequark@mastodon.social)'s status on Tuesday, 24-Dec-2024 15:44:30 JST ✧✦✶✷Catherine✷✶✦✧

     in reply to

     it's incredibly slow

     alcinnz repeated this.
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     ✧✦✶✷Catherine✷✶✦✧ (whitequark@mastodon.social)'s status on Tuesday, 24-Dec-2024 15:44:30 JST ✧✦✶✷Catherine✷✶✦✧

     in reply to

     every time it calls bzero() on something i have to wait for literally like 30 seconds

     this firmware calls bzero() a lot

     it also has DMA so i can't keep internal RAM reads inside the emulator

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     Rich Felker (dalias@hachyderm.io)'s status on Tuesday, 24-Dec-2024 15:44:30 JST Rich Felker

     in reply to

     @whitequark Is there a way to make the protocol compress (at least trivially, like runs of zeros) the io operations?

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     Rich Felker (dalias@hachyderm.io)'s status on Tuesday, 24-Dec-2024 15:49:04 JST Rich Felker

     in reply to

     @whitequark Sounds like booting Windows with L1 cache disabled. 🤣

     Yes, 15 years ago I diagnosed someone's "broken" Windows PC that "wouldn't boot", and that was the issue. After a few hours (I'd left it to do something else) the Win98 splash screen came up and I knew immediately where to look for the problem.

     Haelwenn /элвэн/ :triskell: likes this.
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     ✧✦✶✷Catherine✷✶✦✧ (whitequark@mastodon.social)'s status on Tuesday, 24-Dec-2024 15:49:05 JST ✧✦✶✷Catherine✷✶✦✧

     in reply to

     also, we have added IRQ support to it

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     ✧✦✶✷Catherine✷✶✦✧ (whitequark@mastodon.social)'s status on Tuesday, 24-Dec-2024 15:49:05 JST ✧✦✶✷Catherine✷✶✦✧

     in reply to

     i think if i leave it for a few days it'll maybe finish initializing?

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     Jernej Simončič � (jernej__s@infosec.exchange)'s status on Tuesday, 24-Dec-2024 19:28:33 JST Jernej Simončič �

     in reply to

     • Rich Felker

     @dalias @whitequark 15 or 25 years ago? :)

     (also, any idea why cache was disabled?)

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     Rich Felker (dalias@hachyderm.io)'s status on Tuesday, 24-Dec-2024 19:28:33 JST Rich Felker

     in reply to

     • Jernej Simončič �

     @jernej__s @whitequark 15. This was in small town India where the computers were 10 years outdated. 🤪

     No idea why; maybe CMOS save area got corrupted or maybe someone was told "try turning off cache in BIOS" as a solution to another problem.