ZERODIVIDE is enabled throughout the program, except within
the scope of the NOZERODIVIDE condition prefix.
Result
The result of a division by zero is undefined.
Cause and syntax
The ZERODIVIDE computational condition is raised when an attempt
is made to divide by zero. This condition is raised for fixed-point
and floating-point division. If the numerator of a floating-point
divide is also zero, INVALIDOP is raised.
If the ZERODIVIDE condition is raised and it is disabled, the
program is in error.