SPC56EL60L3上的FPU异常

大家好，
我正在开发一个SPC56EL60L3设备，使用SPC5 Studio，我有两个关于FPU的问题：
1.执行浮点数除以0.0FI将得到无限结果（这意味着0bS111 1111 1xxx .... xxxx值，根据IEEE 754标准），将0.0F除以0.0FI将预期NaN结果（ 0bS111 1111 10xx ... xxxx value）;在两种情况下，结果都是0bS111 1111 0111 1111 .... 1111，这是一个有效数字（3.40 ... e + 038）。
您能否确认SPC56是否符合IEEE 754标准？我的测试有什么问题？
2.而且我希望FPU生成一个异常（IVOR33），它实际上不是由设备管理的。您能否发一个解释如何启用和管理该中断的代码？
提前致谢
最好
布鲁诺



以下为原文




Hi all,
I'm developing on a SPC56EL60L3 device, using SPC5 Studio, I have two querstions about the FPU:
1. executing a division of a float number by 0.0F I would expect an infinite result (which means a 0bS111 1111 1xxx .... xxxx value, according with IEEE 754 standard), dividing 0.0F by 0.0F I would expect a NaN result (0bS111 1111 10xx ... xxxx value); in both cases the result is 0bS111 1111 0111 1111 .... 1111, which is a valid number (3.40...e+038).
Can you confirm that the SPC56 implements the IEEE 754 standard? What's wrong in my tests?
2. moreover I would expect the FPU to generate an exception (IVOR33), which is actually not managed by device. Can you please post a piece code explaining how to enable and manage that interrupt?
thanks in advance
best
Bruno