AMD Confidential
User Manual November 21
st
, 2008
Appendix A 223
Interrupt to task-gate is not implemented. An attempt to execute an interrupt to
task-gate results in a „FeatureNotImplemented‟ exception and the simulation will
be stopped.
When delivering an exception in an attempt to deliver a hardware interrupt the
simulation will not push the resume-flag (RF) onto the stack.
Always clears VM, NT, TF, and RF bits in rFLAGS.
A.6.3.2 IRET – Return from Interrupt
The simulator does not support nested task-switching using the rFLAGS nested-task bit
(NT) and the TSS back-link field. An interrupt return (IRET) to the previous task (nested-
task) will result in a „FeatureNotImplemented‟ exception and the simulation will be
stopped.
A.6.4 Virtualization Instruction Reference
For more information on Virtualization Technology, see AMD Publication #33047,
AMD64 Virtualization Technology.
Clear Global Interrupt Flag.
Invalidates the TLB mapping for the
virtual page specified in rAX and the
ASID specified in ECX.
Alternate notation for move from CR8 to
register.
Alternate notation for move register to
CR8.
Alternate notation for move from CR8 to
register.
Alternate notation for move register to
CR8.
Secure initialization and jump, with
attestation.
Set Global Interrupt Flag.
A.6.5 64-Bit Media Instruction Reference
These instructions described in this section operate on data located in the 64-bit MMX
registers. Most of the instructions operate in parallel on sets of packed elements called
vectors, although some operate on scalars. The instructions define both integer and
floating-point operations, and include the legacy MMX instructions and the AMD
extensions to the MMX instruction set.
