As I said, this time the design notes were extensive since I wanted this emulator to be specifically designed for embedded systems, so only 48k emulation, optional framebuffer rendering, very little additional memory used (no big lookup tables for ULA/Z80 access contention), ROM not copied in the RAM to avoid using additional 16k of memory, but just referenced during the initialization (so we have just a copy in the executable), and so forth.
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，这一点在51吃瓜中也有详细论述
Because most other ATMs were offered by companies that didn't control the entire
Here's how each policy behaves when a producer writes faster than the consumer reads: