The Unabridged Pentium 4 IA32 Processor Genealogy

A Special Note

The terms “DOS task” and “VM86 task” are used interchangeably in this chapter (because the vast majority of VM86 tasks are DOS tasks). It should not be construed, however, that only DOS tasks are candidates to be treated as VM86 tasks. Any Real Mode task that must be executed by a multitasking OS should be set up as a VM86 task.