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A comment on Intel mulls cutting 16 and 32-bit support, booting straight into 64-bit mode. Parent comment

Re:Intel mulls cutting 16 and 32-bit support, booting straig... by jkingsman on Thursday May 25, 2023 @02:34PM (#36074357)
> The PS1 was implemented in spare die area of the PS2’s USB controller

Whoah, that is WILD. Any info about where I can learn more about this?

[ Parent | on HN ]
Re:Intel mulls cutting 16 and 32-bit support, booting straig... by nateguchi on Thursday May 25, 2023 @02:48PM (#36074496)
https://www.copetti.org/writings/consoles/playstation-2/

Under heading “I/O”

[ Parent | on HN ]
Re:Intel mulls cutting 16 and 32-bit support, booting straig... by tobz1000 on Thursday May 25, 2023 @02:50PM (#36074527)
It sounds more like the I/O firmware was running on dedicated PS1 hardware:

https://www.theguardian.com/technology/2013/dec/12/ps4-and-x...

> The PlayStation 2, meanwhile, had the original PlayStation chipset built in, so it ran pretty much any PSone title – and when that chip wasn't being used for backwards compatibility it doubled as an input/output processor, which was pretty canny.

[ Parent | on HN ]
Re:Intel mulls cutting 16 and 32-bit support, booting straig... by mikeponders on Thursday May 25, 2023 @02:55PM (#36074578)
https://www.copetti.org/writings/consoles/playstation-2/#io

Essentially the thicc PS2s include the PS1 chip and normally use it for IO and also for PS1 compatibility.

[ Parent | on HN ]