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PC Gaming @lemmy.ca

alessandro @lemmy.ca

1y ago

run CISC binaries on RISC hardware

RISC-V CPU runs The Witcher 3 at 15 FPS — 64-core chip paired with Radeon RX 5500 XT GPU deliver laggy gameplay

www.tomshardware.com

RISC-V CPU runs The Witcher 3 at 15 FPS — 64-core chip paired with Radeon RX 5500 XT GPU deliver laggy gameplay

RISC-V @lemmy.ml

merthyr1831 @lemmy.ml

1y ago

64-core RISCV CPU and RX5500XT GPU running Witcher 3 at 15fps

www.tomshardware.com /pc-components/cpus/risc-v-cpu-runs-the-witcher-3-at-15-fps-64-core-chip-paired-with-radeon-rx-5500-xt-gpu-deliver-laggy-gameplay

8 comments

I think thats a pretty big achievement that it runs at all on the wrong instruction set. RISC-V development really seems to have come far
Were they emulating the x86 code in realtime, or pre-translating it to RISC-V in the way that Apple’s Rosetta 2 does for ARM? If the former, that is indeed impressive performance.
- I don't even care. The fact that we're at a point where it runs means a whole bunch of "step one"s have been succefully taken.
- Besides Box64, which was used to emulate x86 instructions in general, Wine and DXVK helped fill the gaps using Linux instead of Windows.
- Believe it or not, the article answers that question. The linked blog post from the devs has even more detail.
- The original blog post (linked in the article) refers to this as a DynaRec, i.e. a dynamic recompiler. So it's not exactly emulating, but nor is it the ahead-of-time recompilation that Rosetta 2 can do.
I’d love to know the power draw, the article doesn’t mention it (that I could see).
It’s pretty nuts to be able to take something as complex as a video game and to run it on unintended hardware.
PS3 next?
- If rpcs3 uses a dynarec, then one would have to specifically be made for RISC-V. The interpreter can probably already run right now.

8 comments