Comment by camel-cdr

2 days ago

> And maybe 16-32-48-64 is worth it..

It is, with a prefix encoding, you can reuse the RVC decode path 1-to-1 and get the 48/64-bit instruction starts with a simple bitshift (or simply handle the 48/64-bit instructions via the fusion path). This seems to be the encoding direction RISC-V is headed in.