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Intel Pentium CPU Instruction Set Reference

WBINVD instruction - Write Back and Invalidate Cache

Code	Mnemonic	Description
0F 09	WBINVD	Write back and flush Internal caches; initiate writing-back and flushing of external caches.

Description

Operands	Bytes	Clocks
	2	2000+	NP

Flags

ID	unaffected	DF	unaffected
VIP	unaffected	IF	unaffected
VIF	unaffected	TF	unaffected
AC	unaffected	SF	unaffected
VM	unaffected	ZF	unaffected
RF	unaffected	AF	unaffected
NT	unaffected	PF	unaffected
IOPL	unaffected	CF	unaffected
OF	unaffected