6-20 Vol. 3A

INTERRUPT AND EXCEPTION HANDLING

Interrupt 0—Divide Error Exception (#DE)

Exception Class

Fault.

Description

Indicates the divisor operand for a DIV or IDIV instruction is 0 or that the result cannot be represented in the 
number of bits specified for the destination operand.

Exception Error Code

None.

Saved Instruction Pointer

Saved contents of CS and EIP registers point to the instruction that generated the exception.

Program State Change

A program-state change does not accompany the divide error, because the exception occurs before the faulting 
instruction is executed.