Difference between revisions of "Assembler:Commands:IRET"

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(Created page with 'Category:Assembler '''command''' iret Interrupt Return. Returns program control from an exception or interrupt handler to a program or procedure that was interrupted by an e…')
 
 
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'''command''' iret
 
'''command''' iret
  
Interrupt Return. Returns program control from an exception or interrupt handler to a program or procedure that was interrupted by an exception, an external interrupt, or a software-generated interrupt.
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Interrupt Return. Interrupt return (16-bit operand size).
  
  

Latest revision as of 21:05, 22 January 2018

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.


c9x.me/x86/html/file_module_x86_id_145.html


Command Parameters[edit]

<none>


See also[edit]

External links[edit]