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www.bearssl.org | ||
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www.nayuki.io
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| | | | | [AI summary] A comprehensive guide to C/C++ integer rules, covering data types, arithmetic promotions, conversion behaviors, and undefined behavior scenarios. | |
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gpfault.net
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| | | | | [AI summary] The text provides an in-depth exploration of various x86-64 instruction set architectures, focusing on arithmetic operations (ADD, SUB, MUL, SMUL, DIV, SDIV), logical operations (AND, OR, XOR, NOT), and control flow instructions. It details the implementation of these instructions in the QBX virtual machine, emphasizing how they emulate real x86-64 instructions while managing the flags register and handling different operand sizes (8-bit and 16-bit). The text also discusses the nuances of flag handling, register operations, and macro-based code generation to streamline instruction implementation. | |
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mark.engineer
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| | | | | [AI summary] The user shared an extensive account of their project to compute the first 255 digits of π using an Intel 4040 CPU, which is over 50 years old. They described their hardware setup, firmware modifications, and optimization techniques to achieve the computation within a significantly reduced time compared to earlier estimates. The project involved custom firmware, precise timing control, and a spigot algorithm to calculate π's digits efficiently on vintage hardware. The final run completed the task in approximately 69 hours, showcasing the potential of optimizing algorithms for older processors. | |
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c64os.com
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| | | [AI summary] The provided text is a detailed technical documentation on the 6502 microprocessor, focusing on its instruction set, addressing modes, and memory operations. It includes information on various assembly instructions, their opcodes, addressing modes, and effects on the processor flags. The document also mentions the C64 OS project and its development, along with some promotional content for the platform. | ||
