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Behaviors and restrictions – Intel Extensible Firmware Interface User Manual

Page 812

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Extensible Firmware Interface Specification

19-38

12/01/02

Version 1.10

BEHAVIORS AND RESTRICTIONS:

• Specifying an index value with Operand 1 direct results in an instruction encoding exception.
• If the immediate data is smaller than the move size, then the value is sign-extended to the

width of the move.

• If Operand 1 is a register, then the value is stored to the register with bits beyond the move

size cleared.