First of all, notice that you are potentially doing a lot of unnecessary work when the buffer runs out, since you are processing two buffers for each loop iteration.

首先注意，当缓冲区用尽时，可能要做许多不必要的工作，因为对于每个循环迭代都要处理两个缓冲区。

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You then use register 127 as your loop counter and register 126 as your base pointer, and perform convert_to_upper on each value until you get to the end of the buffer.

然后再将寄存器127用作循环计数器，将寄存器126用作基指针，并在每个值上执行convert _ to_upper，直到到达缓冲区的底部为止。

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As shown in Figure 2-9, the guard buffer significantly reduces the charging time of CSHUNT because of the open-loop gain (AGUARD), which is typically 104 to 106.

如图2 - 9所示，由于保护缓冲放大器具有典型值为104到106的开环增益，所以能够大大减少CSHUNT的充电时间。

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