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> And the "anisotropic instruction encoding" makes so much sense that ARM adopted it (in a much simplified fashion) with Thumb-2. And then abandoned it in thei
by comex 12y ago
> And the "anisotropic instruction encoding" makes so much sense that ARM adopted it (in a much simplified fashion) with Thumb-2.
And then abandoned it in their 64-bit architecture in favor of the old uniform 32-bit, FWIW.
- ANTSANTS 12y agoOops. I haven't worked with ARM in a while, wasn't aware of that. I knew it was simplified a bit (like no more funky barrel-shifter stuff), but I'm kinda surprised they went back to a fixed-length encoding scheme when they're already taking much greater complexity hits with the high performance OoO implementations.