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Not that it helped Acorn survive, of course! Right up until the end, RISC OS ran on interrupts, too much delicate kernel code, cooperative multitasking, and un
by mattbee 5y ago
Not that it helped Acorn survive, of course! Right up until the end, RISC OS ran on interrupts, too much delicate kernel code, cooperative multitasking, and unprotected memory.
They weren't the only CPU pioneers; Argonaut didn't think it unreasonable to create a custom CPU to push polygons on a Nintendo cartridge - https://en.wikipedia.org/wiki/Super_FX https://en.wikipedia.org/wiki/Super_FX
- the-dude 5y agoThe Super_FX seems to be a coprocessor. More companies created silicon ( Commodore? ), but not CPUs AFAIK.
- mattbee 5y agoIt was a whole new RISC CPU. Lots of co-processors are whole CPUs. Argonaut spun a company off, and it's still shipping - the inventor said it outsold ARM and MIPS before the PS1 (from https://web.archive.org/web/20071217092221/http://www.armchairempire.com/Interviews/jez-san-interview.htm https://web.archive.org/web/20071217092221/http://www.armcha... )