Although the interface to the main processor is the same as that of the 8087, its core is that of the 80387 and is thus fully IEEE 754-compliant and capable of executing all the 80387's extra instructions.
儘管與主處理器的接口與8087相同，其核心是80387的核心，因此完全符合IEEE 754標準，並且能夠執行所有80387的額外指令。