List of discontinued x86 instructions

Instructions that have at some point been present as documented instructions in one or more x86 processors, but where the processor series containing the instructions are discontinued or superseded, with no known plans to reintroduce the instructions. == Intel instructions == === i386 instructions === The following instructions were introduced in the Intel 80386, but later discontinued: === Itanium instructions === These instructions are only present in the x86 operation mode of early Intel Itanium processors with hardware support for x86.

Source: Wikipedia — List of discontinued x86 instructions (CC BY-SA 4.0)