3 ms·
What the person said was "SOME risc-v chips can execute in order". In fact the vast vast majority of RISC-V chips shipped to date are in-order, including the J
by brucehoult 3y ago
What the person said was "SOME risc-v chips can execute in order".
In fact the vast vast majority of RISC-V chips shipped to date are in-order, including the JH7110 SoC in this year's VisionFive 2, Star64 and PineTab-V, and Milk-V Mars. The only shipping OoO RISC-V chips are the TH1520 and SG2042 with C910 cores, as used in the Sipeed LicheePi4A and Milk-V Pioneer boards.
BOOM was (and is) an experimental university project, not a product. But as Jim Keller said in a recent interview "with RISC-V a couple of university students created an OoO core that was better than the first Intel i7s which hundreds of engineers worked on".
- jeffbee 3y agoThat's a revision. The comment originally made the blanket statement that RISC-V executes in order.
- brucehoult 3y agoOk, I didn't see that. It's true for 99.99999% of currently-deployed RISC-V cores but, since the TH1520 and SG2042 boards started shipping in May, not 100% any more.