许多设计用来读取浮点数的例程可能会允许“NaN”(非数字)这样的值。

Many routines designed to read floats may allow values such as "NaN" (not a number).

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在这种情况下，函数生成为库例程，后者将参数直接传递到浮点芯片，而不是将参数推送到程序堆栈上。

In this case, the functions are generated as library routines that pass arguments directly to the floating-point chip instead of pushing them onto the program stack.

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