Assembler:Commands:IRET
Revision as of 01:05, 23 January 2018 by TheyCallMeTim13 (talk | contribs)
command iret
Interrupt Return. Interrupt return (16-bit operand size).
Invalidates (flushes) the translation lookaside buffer (TLB) entry specified with the source operand. The source operand is a memory address. The processor determines the page that contains that address and flushes the TLB entry for that page.
The INVLPG instruction is a privileged instruction. When the processor is running in protected mode, the CPL of a program or procedure must be 0 to execute this instruction.
The INVLPG instruction normally flushes the TLB entry only for the specified page; however, in some cases, it flushes the entire TLB. See "MOV-Move to/from Control Registers" in this chapter for further information on operations that flush the TLB.
Command Parameters[edit]
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