INVD
Usage: INVD Modifies flags: none
Flushes CPU internal cache. Issues special function bus cycle which indicates to flush external caches.Data in write-back external caches is lost.
Invalidate Internal Caches
INVD ; 0F 08 [486]
INVD invalidates and empties the processor's internal caches, and causes the processor to instruct external caches to do the same. It does not write the contents of the caches back to memory first: any modified data held in the caches will be lost. To write the data back first, use WBINVD.
Intel warns that this instruction may be implemented differently on future processors.
Example:
invd