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www.yosoygames.com.ar | ||
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randomascii.wordpress.com
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| | | | | Is IEEE floating-point math deterministic? Will you always get the same results from the same inputs? The answer is an unequivocal "yes". Unfortunately the answer is also an unequivocal "no". I'm afraid you will need to clarify your question. My hobby: injecting code into other processes and changing the floating-point rounding mode on some threads... | |
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coredumped.dev
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| | | | | In this post, we are going to take a deep dive into pointer tagging, where metadata is encoded into a word-sized pointer. Doing so allows us to keep a compact representation that can be passed around in machine registers. This is very common in implementing dynamic programming languages, but can really be used anywhere that additional runtime information is needed about a pointer. We will look at a handful of different ways these pointers can be encoded and see how the compiler can optimize them for diff... | |
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erikmcclure.com
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| | | | | Today, there was an announcement about a new RISC-V chip, which has got a lot of people excited. I wish I could also be excited, but to me, this is just a reminder that RISC architectures are fundamentally unscalable, and inevitably stop being RISC as soon as they need to be fast. People still call ARM a "RISC" architecture despite ARMv8.3-A adding a FJCVTZS instruction, which is "Floating-point Javascript Convert to Signed fixed-point, rounding toward Zero". Reduced instruction set, my ass. | |
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andrewkelley.me
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| | | [AI summary] The blog post discusses the evolution of programming languages, focusing on Rust and Zig's approaches to handling formatted output. It highlights the challenges in C's format string system, the use of macros in Rust, and Zig's ability to handle formatted output without special compiler cases, relying on userland code. The post also touches on the trade-offs of macros and the design goals of Zig to provide power without the drawbacks of macro-based systems. | ||
