Understanding Hard-Float vs Soft-Float Implementations on Cortex-M Processors
In my recent post on the PSA Crypto API, I demonstrated the use of the API on two different MCUs: the nRF52840 and the ESP32-S3. In the case of the former, the ECDSA signature operation was…
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johndcook.com·23d agoiOS 26 adds post-quantum ML-DSA keys in Secure Enclave; Android support remains partial
Apple's iOS 26 introduced hardware-backed ML-DSA post-quantum signing keys inside the Secure Enclave, using a familiar CryptoKit API that ti
FP8 Tensor Cores Enable FP64-Equivalent 3-D FFT on NVIDIA Blackwell Ultra via Ozaki-Bailey Decomposition
NVIDIA's Blackwell Ultra (B300) cuts FP64 vector throughput to ~1.3 TFLOPS per GPU, roughly 30x below B200 and well below the level at which
arxiv.org·14d ago
Floating-Point Units on Espressif SoCs: Why (and when) they matter
In this article, you’ll learn what an FPU is, why it’s useful, which Espressif SoCs feature one, and how it impacts performance through a be
A First Comprehensive Study of TurboQuant: Accuracy and Performance
A vLLM study comparing TurboQuant KV-cache quantization with BF16 and FP8 across long-context and reasoning workloads, showing where 4-bit v
The Quantum Code Conundrum: Wrestling with API Drift
Large language models face a unique challenge in generating quantum code due to API drift. A new benchmark reveals the struggle with version
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