wbinvd

Write back and invalidate the processor's internal caches.

Syntax

[[px]] wbinvd

Where:

[px]

is the viewpoint override, including punctuation ( [ ] ), specifying that the viewpoint is temporarily set to processor x of the boundary scan chain.  The processor can be specified as px (where x is the processor ID), or an alias you have defined for a given processor ID.  ALL cannot be used as a viewpoint override.

Discussion

Use the wbinvd command to write back and invalidate the processor's internal caches.  In a multiprocessor system, only the caches for the current viewpoint are invalidated. The wbinvd command can only be used when the target is stopped.

Examples

To write back and invalidate the viewpoint processor's cache:

Command input:

wbinvd

Related Topics

flush

invd