在ARM OMAP3515处理器中除以零异常 [英] divide by zero exception in ARM OMAP3515 processor

问题描述

我在我的项目中使用OMAP3515处理器(通用CortexA8器件)，但我正在处理异常，但是当给出除以零的指令时，该处理器不会生成任何异常，它不会执行下一条指令. 我想知道是否有任何配置可用于生成零除异常.

I am using OMAP3515 processor (Generic CortexA8 Device) for my project, I was working on exception handling but this processor dos not generate any exception when any divide by zero instruction is given , it simply goes not next instruction. I want to know whether any configuration available to generate divide by zero exception.

推荐答案

Cortex A8不支持整数运算除以零.除了正常的中断和调试异常，唯一的故障例外支持的是数据中止，预取中止和未定义的指令

Cortex A8 does not support divide-by-zero for integer operations. Other than normal interrupts and debug exceptions, the only fault exceptions supported are data abort, prefetch abort, and undefined instruction

VFP支持浮点运算的被零除例外，必须通过

The VFP supports divide-by-zero exceptions for floating point operations, which must be explicitly enabled via the FPSCR DZE bit.

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