Claude Code worked for 20 or 30 minutes in total, and produced a Z80 emulator that was able to pass ZEXDOC and ZEXALL, in 1200 lines of very readable and well commented C code (1800 lines with comments and blank spaces). The agent was prompted zero times during the implementation, it acted absolutely alone. It never accessed the internet, and the process it used to implement the emulator was of continuous testing, interacting with the CP/M binaries implementing the ZEXDOC and ZEXALL, writing just the CP/M syscalls needed to produce the output on the screen. Multiple times it also used the Spectrum ROM and other binaries that were available, or binaries it created from scratch to see if the emulator was working correctly. In short: the implementation was performed in a very similar way to how a human programmer would do it, and not outputting a complete implementation from scratch “uncompressing” it from the weights. Instead, different classes of instructions were implemented incrementally, and there were bugs that were fixed via integration tests, debugging sessions, dumps, printf calls, and so forth.
The world's largest automaker has had a somewhat difficult relationship with battery-electric vehicles. Toyota was an early pioneer of hybrid powertrains, and it remains a fan today, often saying that given limited battery supply, it makes sense to build more hybrids than fewer EVs. Its first full BEV had a rocky start, suffering a recall due to improperly attached wheels just as the cars were hitting showrooms. Reviews for the awkwardly named bZ4x were mixed; the car did little to stand out among the competition.
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The state-run Oman News Agency has posted photos on social media showing the Omani foreign minister Badr Albusaidi sat with US envoys Steve Witkoff and Jared Kushner in Geneva.
看产业，京津冀国家技术创新中心燕郊协同创新基地加速建设；看生态，《潮白河生物多样性保护协同合作书》签署，重污染天气实现同步应急响应；看民生，北京潞河中学三河校区、北京景山学校香河分校等学校建成……通北示范区执委会挂牌成立以来，基础设施互联互通、产业创新协同协作、生态环境联控联治、公共服务共建共享成效显著，为京津冀协同发展打造了示范标杆。