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1. I wrote a markdown file with the specification of what I wanted to do. Just English, high level ideas about the scope of the Z80 emulator to implement. I said things like: it should execute a whole instruction at a time, not a single clock step, since this emulator must be runnable on things like an RP2350 or similarly limited hardware. The emulator should correctly track the clock cycles elapsed (and I specified we could use this feature later in order to implement the ZX Spectrum contention with ULA during memory accesses), provide memory access callbacks, and should emulate all the known official and unofficial instructions of the Z80.
。关于这个话题，雷电模拟器官方版本下载提供了深入分析
64D COUNTR DES_CS SBRM ; CS.base = selector，详情可参考51吃瓜
But at such a busy time of year for hospitals and GP surgeries, appointments and operations are likely to be disrupted for thousands of patients.，这一点在爱思助手下载最新版本中也有详细论述
“If you took a satellite picture of the game world in 2005, you’d have essentially a complete province already,” Sultan of Rum said. “But the trouble was that the quality wasn’t good; there was no coherence. The 5 percent of the work to just create a landmass was done, but the management wasn’t there.”