在这些寄存器的 #define 宏前面，还应该定义另外一个宏，它用来说明 ISR 是在模拟模式中运行还是在原来的中断上下文中运行的。
On top of these register #define macros, you should also define another macro that dictates whether the ISR will run in simulation mode or in the original interrupt context. For example
着重讨论了数字、模拟和数-模混合集成电路宏模型，并指出了尚待解决的问题。
Macromodels for digital, analog and digital-analog integrated circuits are analysed, and some uncertainties are also discussed.
基于MPEG-1的模拟结果表明了基于宏块分类的运动估计法之有效性。
Simulation result based on MPEG 1 shows the effectiveness of the motion estimation method based on macroblock′s classification.
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