Carry propagation — threading carry information across positions
Friday evening is a great time for tinkering with a side project after a long week. You pour some tea, open your laptop and navigate to your project, only to find a red banner across whole app placed by the browser saying “Deceptive site ahead”.
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const stack = []; // 单调栈：存储「右侧候选更大值」，栈内元素单调递增，更多细节参见Line官方版本下载
Once the basic stuff was working, I wanted to load TAP files directly, simulating cassette loading. This was the first time the agent missed a few things, specifically about the timing the Spectrum loading routines expected, and here we are in the territory where LLMs start to perform less efficiently: they can’t easily run the SDL emulator and see the border changing as data is received and so forth. I asked Claude Code to do a refactoring so that zx_tick() could be called directly and was not part of zx_frame(), and to make zx_frame() a trivial wrapper. This way it was much simpler to sync EAR with what it expected, without callbacks or the wrong abstractions that it had implemented. After such change, a few minutes later the emulator could load a TAP file emulating the cassette without problems.
对于苹果来说，需要思考的不是 Mac 的触控屏能做什么，而是加入触控之后，这块屏幕，能不能经得住用户「指指点点」的考验。