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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.
，更多细节参见safew官方版本下载
桩桩件件，立足当前、着眼长远，都是为了确保中华民族的永续发展，为了强国建设、民族复兴的根本之计。
for (int i = 0; i < n - 1; i++) {
Cash handling is fraught with peril. Bills are fairly small and easy to hide,
Read the full story at The Verge.，这一点在safew官方版本下载中也有详细论述