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Left: upstream GCC.
Right: local GCC I introduced to the wonders of the Zbkb extension vis a vis unaligned loads on RV32.
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This is NOT cute, orbital launch vehicles only do this when they're VERY distressed
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Surprisingly easy to hook up: micropython stdin connected to system getchar() in my testbench harness, boom, interactive Python prompt running on CXXRTL/Verilator Hazard3.
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Any compiler/RISC-V folks who can say why this is a bad idea?
GCC seems to conflate "compiler needs an fp for its own purposes" (VLA etc) and "fp needs to be saved at a known frame offset for chain walking".
You can disambiguate the two by checking `-fomit-frame-pointer`. If it's set, you're free to emit a Zcmp prologue with the upside-down saved regs. You still get an fp, it still has the right a
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That's the basics proven out -- test failures are a problem for future Luke
I honestly think building the Pico 2 W MicroPython firmware is a much better embedded firmware size benchmark than Embench.
You've got the MP interpreter itself, the C parts of the standard Python libraries, multiple mbed-tls algorithms, t…
MicroPython is set up to run all of its tests and benchmarks on real embedded targets via UART, so I figure it should be possible to hook that up to stdin/stdout on my tb harness and use that as a source of regressions and benchmarks for h…
Surprisingly easy to hook up: micropython stdin connected to system getchar() in my testbench harness, boom, interactive Python prompt running on CXXRTL/Verilator Hazard3.
Oh wow, "Call Frame Information" and "Control Flow Integrity" is such an awful acronym collision
Left: before, right: after. The cm.push looks equivalent but it's not because the ordering is different: cm.push puts highest regno at highest address.
Any compiler/RISC-V folks who can say why this is a bad idea?
GCC seems to conflate "compiler needs an fp for its own purposes" (VLA etc) and "fp needs to be saved at a known frame offset for chain walking".
You can disambiguate the two by…
Left: upstream GCC.
Right: local GCC I introduced to the wonders of the Zbkb extension vis a vis unaligned loads on RV32.
Obligatory aipol footnote: K3 is not open-source in any meaningful sense and like all competitive LLMs it's built on theft.
Architecture research on more efficient models is still probably a net good (Jevons paradox makes it tricky), and a…
The K3 technical report is an interesting read: https://github.com/MoonshotAI/Kimi-K3/blob/main/k3_tech_report.pdf
No positional embeddings! The gated MLA (global) layers just use plain keys. All of the sequence modelling comes from the KD…
This is NOT cute, orbital launch vehicles only do this when they're VERY distressed
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